diff options
Diffstat (limited to 'newlib/libc/machine/i960')
33 files changed, 0 insertions, 10098 deletions
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So we exec the FD to /dev/null, -# effectively closing config.log, so it can be properly (re)opened and -# appended to by config.status. 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Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memccpy.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1989,1993 Intel Corp., all rights reserved - */ -/* - procedure memccpy (optimized assembler version for the 80960K series) - - dest_addr = memccpy (dest_addr, src_addr, char, len) - - copy len bytes pointed to by src_addr to the space pointed to by - dest_addr, stopping if char is copied. If char is copied, - return address of byte after char in dest string; else null. - - - Undefined behavior will occur if the end of the source array is in - the last two words of the program's allocated memory space. This - is so because the routine fetches ahead. Disallowing the fetch - ahead would impose a severe performance penalty. - - Undefined behavior will also occur if the source and destination - strings overlap. - - Strategy: - - Fetch the source array by words and store them by words to the - destination array, until there are fewer than three bytes left - to copy. Then, using the last word of the source (the one that - contains the remaining 0, 1, 2, or 3 bytes to be copied), store - a byte at a time until Ldone. - - Tactics: - - 1) Do NOT try to fetch and store the words in a word aligned manner - because, in my judgement, the performance degradation experienced due - to non-aligned accesses does NOT outweigh the time and complexity added - by the preamble and convoluted body that would be necessary to assure - alignment. This is supported by the intuition that most source and - destination arrays (even more true of most big source arrays) will - be word aligned to begin with. - - 2) Rather than decrementing len to zero, - I calculate the address of the byte after the last byte of the - destination array, and quit when the destination byte pointer passes - that. - -*/ - - .globl _memccpy - .leafproc _memccpy, __memccpy - .align 2 -_memccpy: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memccpy: - mov g14, g13 # preserve return address - cmpibge 0,g3,Lexit_char_not_found - - addo g3,g1,g3 # compute beyond end of src - ld (g1), g7 # fetch first word of source - lda 0xff,g5 # mask for char - and g5,g2,g2 # extract only char - shlo 8,g2,g6 - or g2,g6,g6 - shlo 16,g6,g4 - or g6,g4,g6 # word of char - b Lwloop_b - -Lwloop_a: - ld (g1), g7 # fetch ahead next word of source - st g4, (g0) # store word to dest - addo 4, g0, g0 # post-increment dest pointer -Lwloop_b: # word copying loop - addo 4, g1, g1 # pre-increment src pointer - cmpo g3, g1 # is len <= 3 ? - mov g7, g4 # keep a copy of the current word - bl Lcloop_setup # quit word loop if less than 4 bytes - scanbyte g6, g7 # check for char - bno Lwloop_a # continue word loop if char not found. - -Lcloop_setup: - subo 4, g1, g1 # back down src pointer - cmpobe g1, g3, Lexit_char_not_found - -Lcloop_a: # character copying loop (len < 3) - and g5,g4,g7 # check the byte against char - cmpo g7,g2 - stob g7,(g0) # store the byte - addo 1, g0, g0 - be Lexit_char_found - addo 1,g1,g1 - cmpo g1,g3 - shro 8,g4,g4 # position next byte - bne Lcloop_a - -Lexit_char_not_found: - mov 0, g0 -Lexit_char_found: - lda 0,g14 - bx (g13) # g0 = dest array address; g14 = 0 -Lrett: - ret - - -/* end of memccpy */ diff --git a/newlib/libc/machine/i960/memccpy_ca.S b/newlib/libc/machine/i960/memccpy_ca.S deleted file mode 100644 index 60c197b72..000000000 --- a/newlib/libc/machine/i960/memccpy_ca.S +++ /dev/null @@ -1,245 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "mccpy_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1989,1993 Intel Corp., all rights reserved - */ - -/* - procedure memccpy (optimized assembler version for the 80960CA) - - dest_addr = memccpy (dest_addr, src_addr, char, len) - - copy len bytes pointed to by src_addr to the space pointed to by - dest_addr, stopping if char is copied. If char is copied, - return address of byte after char in dest string; else null. - - Undefined behavior will occur if the end of the source array is in - the last two words of the program's allocated memory space. This - is so because the routine fetches ahead. Disallowing the fetch - ahead would impose a severe performance penalty. - - Undefined behavior will also occur if the source and destination - strings overlap. - - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source is word aligned, destination is not - 4) destination is word aligned, source is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g6 -#define LSW g7 -#else -#define LSW g6 -#define MSW g7 -#endif - - .globl _memccpy - .leafproc _memccpy, __memccpy - .align 2 -_memccpy: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memccpy: - notand g1,3,g5 # extract word addr of start of src - lda (g14),g13 # preserve return address - cmpibge.f 0,g3,Lexit_char_not_found # Lexit if # of bytes to move is <= 0 - cmpo g5,g1 # check alignment of src - ld (g5),LSW # fetch word containing at least first byte - notand g0,3,g4 # extract word addr of start of dest - lda 4(g5),g5 # advance src word addr - shlo 24,g2,g2 # reduce char to single byte - bne.f Lcase_245 # branch if src is NOT word aligned - -Lcase_13: - cmpobe.t g0,g4,Lcase_1_setup # branch if dest word aligned - -Lcase_3: # src is word aligned; dest is not - mov LSW,MSW # make copy of first word of src - addo 4,g4,g1 # move dest word ptr to first word boundary - lda 32,g14 # initialize shift count to zero - -Lcase_25: -Lcase_3_cloop_at_start: # character copying loop for start of dest str - cmpdeci 0,g3,g3 # is max_bytes exhausted? -#if __i960_BIG_ENDIAN__ - lda -8(g14),g14 # augment the shift counter -#else - lda 8(g14),g14 # augment the shift counter -#endif - be.f Lexit_char_not_found # Lexit if max_bytes is exhausted -#if __i960_BIG_ENDIAN__ - rotate 8,MSW,MSW # move next byte into position for extraction -#endif - shlo 24,MSW,g4 - stob MSW,(g0) # store the byte in dest - cmpo g4,g2 - lda 1(g0),g0 # post-increment dest ptr -#if ! __i960_BIG_ENDIAN__ - shro 8,MSW,MSW # move next byte into position for extraction -#endif - be.f Lexit_char_found # Lexit if char found - cmpobne.t g1,g0,Lcase_3_cloop_at_start # branch if reached word boundary - - ld (g5),MSW # fetch msw of operand for double shift - -Lcase_4: - shro 8,g2,g4 - or g4,g2,g1 - shro 16,g1,g4 - or g4,g1,g4 - -#if __i960_BIG_ENDIAN__ - cmpobne 0,g14,Lcase_3_wloop - -Lcase_3_wloop2: - cmpi g3,4 # less than four bytes to move? - lda 4(g5),g5 # post-increment src word addr - mov LSW,g1 # extract 4 bytes of src - bl.f Lcase_13_cloop_setup # branch if < four bytes left to move - scanbyte g4,g1 # branch if word has char in it - bo.f Lcase_13_cloop_setup - mov MSW,LSW # move msw to lsw - ld (g5),MSW # pre-fetch msw of operand for double shift - subi 4,g3,g3 # decrease max_byte count by the 4 bytes moved - st g1,(g0) # store 4 bytes to dest - addo 4,g0,g0 # post-increment dest ptr - b Lcase_3_wloop2 -#endif - -Lcase_3_wloop: - cmpi g3,4 # less than four bytes to move? - lda 4(g5),g5 # post-increment src word addr - eshro g14,g6,g1 # extract 4 bytes of src - bl.f Lcase_13_cloop_setup # branch if < four bytes left to move - scanbyte g4,g1 # branch if word has char in it - bo.f Lcase_13_cloop_setup - mov MSW,LSW # move msw to lsw - ld (g5),MSW # pre-fetch msw of operand for double shift - subi 4,g3,g3 # decrease max_byte count by the 4 bytes moved - st g1,(g0) # store 4 bytes to dest - addo 4,g0,g0 # post-increment dest ptr - b Lcase_3_wloop - -Lcase_1_setup: - subo 4,g0,g0 # store is pre-incrementing; back up dest addr - shro 8,g2,g4 - or g4,g2,MSW - shro 16,MSW,g4 - or g4,MSW,g4 - b Lcase_1 -Lcase_1_wloop: # word copying loop - subi 4,g3,g3 # decrease max_byte count by the 4 bytes moved - ld (g5),LSW # pre-fetch next word of src - addo 4,g5,g5 # post-increment src addr - st g1,(g0) # store word in dest string -Lcase_1: # src and dest are word aligned - cmpi g3,4 # check for fewer than four bytes to move - addo 4,g0,g0 # pre-increment dest addr - lda (LSW),g1 # keep a copy of the src word - bl.f Lcase_13_cloop_setup # branch if less than four bytes to copy - scanbyte LSW,g4 # branch if char is not in foursome - bno.t Lcase_1_wloop -Lcase_13_cloop_setup: - cmpibe.f 0,g3,Lexit_char_not_found # Lexit if max_bytes is exhausted - -Lcase_1_cloop: -#if __i960_BIG_ENDIAN__ - rotate 8,g1,g1 # move next byte into position for extraction -#endif - shlo 24,g1,g4 - stob g1,(g0) # store the byte in dest - cmpo g4,g2 - lda 1(g0),g0 # post-increment dest byte addr - subi 1,g3,g3 - be.f Lexit_char_found # Lexit if char reached - cmpi 0,g3 -#if ! __i960_BIG_ENDIAN__ - shro 8,g1,g1 # move next byte into position for extraction -#endif - bne.t Lcase_1_cloop # continue if len not exhausted - -Lexit_char_not_found: - mov 0,g0 -Lexit_char_found: - lda 0,g14 - bx (g13) # g0 = dest array address; g14 = 0 -Lrett: - ret - - -Lcase_245: - cmpo g0,g4 # check alignment of dest - ld (g5),MSW # pre-fetch second half - and 3,g1,g1 # compute shift count - shlo 3,g1,g14 -#if __i960_BIG_ENDIAN__ - subo g14,0,g14 # adjust shift count for big endian -#endif - be.t Lcase_4 # branch if dest is word aligned - or g4,g1,g1 # is src earlier in word, later, or sync w/ dst - cmpo g0,g1 # < indicates first word of dest has more bytes - /* than first word of source. */ - eshro g14,g6,g4 # extract four bytes - lda 4(g0),g1 # move dest word addr to first word boundary -#if __i960_BIG_ENDIAN__ - bge.f 1f -#else - bg.f 1f -#endif - mov MSW,LSW - lda 4(g5),g5 # move src word addr to second word boundary -1: - notand g1,3,g1 - mov g4,MSW - b Lcase_25 - -/* end of memccpy */ diff --git a/newlib/libc/machine/i960/memchr.S b/newlib/libc/machine/i960/memchr.S deleted file mode 100644 index e9a4e426d..000000000 --- a/newlib/libc/machine/i960/memchr.S +++ /dev/null @@ -1,130 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memchr.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure memchr (optimized assembler version for the 80960K series) - - src_addr = memchr (src_addr, char, max_bytes) - - searching from src_addr for a span of max_bytes bytes, return a - pointer to the first byte in the source array that contains the - indicated char. Return null if the char is not found. - - Undefined behavior will occur if the last byte of the source array - is in the last two words of the program's allocated memory space. - This is so because memchr fetches ahead. Disallowing the fetch - ahead would impose a severe performance penalty. - - Strategy: - - Fetch the source array by words and scanbyte the words for the - char until either a word with the byte is found or max_bytes is - exhausted. In the former case, move through the word to find the - matching byte and return its memory address. In the latter case, - return zero (null). - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble that would be necessary to assure alignment. This - is supported by the intuition that most source arrays (even more - true of most big source arrays) will be word aligned to begin with. - - 2) Rather than decrementing max_bytes to zero, I calculate the - address of the byte after the last byte of the source array, and - quit when the source byte pointer passes that. Refining, actually - I calculate the address of the fifth byte after the last byte of - the source array, because the source byte pointer is ahead of the - actual examination point due to fetch ahead. -*/ - - .globl _memchr - .globl __memchr - .leafproc _memchr, __memchr - .align 2 -_memchr: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memchr: - - mov g14,g13 # preserve return address - lda 0xff,g7 # byte extraction mask - and g1,g7,g1 # make char an 8-bit ordinal - mov 0,g14 # conform to register linkage standard - cmpibge 0,g2,Lnot_found # do nothing if max_bytes <= 0 - addo 4,g0,g6 # post-increment src word pointer - addo g2,g6,g2 # compute ending address from start and len - ld (g0),g4 # fetch first word - shlo 8,g1,g3 # broadcast the char to four bytes - or g1,g3,g3 - shlo 16,g3,g5 - or g3,g5,g3 - -Lsearch_for_word_with_char: - mov g4,g5 # keep a copy of word - scanbyte g3,g5 # check for byte with char - ld (g6),g4 # fetch next word of src - bo Lsearch_for_char # branch if null found - addo 4,g6,g6 # post-increment src word pointer - cmpobge g2,g6,Lsearch_for_word_with_char # branch if max_bytes > 3 - -Lnot_found: - mov 0,g0 # char not found. Return null - bx (g13) # g0 = addr of char in src (or null); g14 = 0 -Lrett: - ret - -Lsearch_for_char: - cmpobe.f g6,g2,Lnot_found # quit if max_bytes exhausted - and g5,g7,g0 # extract byte - cmpo g1,g0 # is it char? - addo 1,g6,g6 # bump src byte ptr - shro 8,g5,g5 # shift word to position next byte - bne.t Lsearch_for_char - subo 5,g6,g0 # back up the byte pointer - bx (g13) - -/* end of memchr */ diff --git a/newlib/libc/machine/i960/memchr_ca.S b/newlib/libc/machine/i960/memchr_ca.S deleted file mode 100644 index ac80be71c..000000000 --- a/newlib/libc/machine/i960/memchr_ca.S +++ /dev/null @@ -1,153 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memchr_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure memchr (optimized assembler version for the CA) - - src_addr = memchr (src_addr, char, max_bytes) - - searching from src_addr for max_bytes bytes, return a pointer to the - first byte that contains the indicated byte in the source string. - Return null if the byte is not found. - - Undefined behavior will occur if the end of the source string (i.e. - the terminating null byte) is in the last two words of the program's - allocated memory space. This is so because, in several cases, memchr - will fetch ahead. Disallowing the fetch ahead would impose a severe - performance penalty. - - This program handles two cases: - - 1) the argument starts on a word boundary - 2) the argument doesn't start on a word boundary - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. The registers are used as follows: - - g0 src ptr; upon return it is a pointer to the matching byte, or null - g1 char to seek - g2 maximum number of bytes to check - g3 char to seek, broadcast to all four bytes - g4 word of the source string - g5 copy of the word - g6 mask to avoid unimportant bytes in first word - g7 byte extraction mask - g13 return address - g14 -*/ - - .globl _memchr - .globl __memchr - .leafproc _memchr, __memchr - .align 2 -_memchr: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memchr: - - mov g14,g13 # preserve return address - lda 0xff,g7 # byte extraction mask - and g1,g7,g1 # make char an 8-bit ordinal - lda 0,g14 # conform to register linkage standard - cmpibge.f 0,g2,Lnot_found # do nothing if max_bytes <= 0 - addo g0,g2,g2 # compute ending address from start and len - and g0,3,g6 # extract byte offset of src - notand g0,3,g0 # extract word addr of start of src - shlo 8,g1,g3 # broadcast the char to four bytes - ld (g0),g4 # fetch word containing at least first byte - or g1,g3,g3 - shlo 16,g3,g5 - cmpo g1,g7 # is char being sought 0xff? - or g5,g3,g3 - shlo 3,g6,g6 # get shift count for making mask for first word - subi 1,0,g5 # mask initially all ones -#if __i960_BIG_ENDIAN__ - shro g6,g5,g5 # get mask for bytes needed from first word -#else - shlo g6,g5,g5 # get mask for bytes needed from first word -#endif - notor g4,g5,g4 # set unneeded bytes to all ones - be.f Lsearch_for_0xff # branch if seeking 0xff - -Lsearch_for_word_with_char: - scanbyte g3,g4 # check for byte with char - lda 4(g0),g0 # pre-increment src word pointer - mov g4,g5 # keep a copy of word - ld (g0),g4 # fetch next word of src - bo.f Lsearch_for_char # branch if null found - cmpoble.t g0,g2,Lsearch_for_word_with_char # branch if not null - -Lnot_found: - mov 0,g0 # char not found. Return null -Lexit_code: - bx (g13) # g0 = addr of char in src (or null); g14 = 0 -Lrett: - ret - -Lsearch_for_char: - subo 4,g0,g0 # back up the byte pointer -Lsearch_for_char.a: - cmpobe.f g0,g2,Lnot_found # quit if max_bytes exhausted -#if __i960_BIG_ENDIAN__ - rotate 8,g5,g5 # shift word to position next byte -#endif - and g5,g7,g6 # extract byte - cmpo g1,g6 # is it char? - lda 1(g0),g0 # bump src byte ptr -#if ! __i960_BIG_ENDIAN__ - shro 8,g5,g5 # shift word to position next byte -#endif - bne.t Lsearch_for_char.a - subo 1,g0,g0 # back up the byte pointer - b Lexit_code - -Lsearch_for_0xff: - lda 0xf0f0f0f0,g6 # make first comparison mask for char=-1 case. - or g6,g5,g6 - and g4,g6,g4 # make unimportant bytes of first word 0x0f - b Lsearch_for_word_with_char - -/* end of memchr */ diff --git a/newlib/libc/machine/i960/memcmp.S b/newlib/libc/machine/i960/memcmp.S deleted file mode 100644 index 709eb2bdb..000000000 --- a/newlib/libc/machine/i960/memcmp.S +++ /dev/null @@ -1,128 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memcmp.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ -/* - procedure memcmp (optimized assembler version for the 80960K series) - - result = memcmp (src1_addr, src2_addr, max_bytes) - - compare the byte array pointed to by src1_addr to the byte array - pointed to by src2_addr. Return 0 iff the arrays are equal, -1 iff - src1_addr is lexicographically less than src2_addr, and 1 iff it is - lexicographically greater. Do not compare more than max_bytes bytes. - - Undefined behavior will occur if the end of either source array - is in the last two words of the program's allocated memory space. - This is so because memcmp fetches ahead. Disallowing the fetch ahead - would impose a severe performance penalty. - - Strategy: - - Fetch the source strings by words and compare the words until either - a differing word is found or max_bytes is exhausted. In the former - case, move through the words to find the differing byte and return - plus or minus one, appropriately. In the latter case, return zero - (equality). - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble that would be necessary to assure alignment. This - is supported by the intuition that most source arrays (even more - true of most big source arrays) will be word aligned to begin with. - - 2) Rather than decrementing max_bytes to zero, I calculate the - address of the byte after the last byte of the source_1 array, and - quit when the source byte pointer passes that. -*/ - - .globl _memcmp - .globl __memcmp - .leafproc _memcmp,__memcmp - .align 2 - -_memcmp: -#ifndef __PIC - lda .Lrett,g14 -#else - lda .Lrett-(.+8)(ip),g14 -#endif -__memcmp: - mov g14,g13 # preserve return address - ldconst 0,g14 # conform to register conventions - cmpibge 0,g2,Lequal_exit # quit if max_bytes <= 0 - addo g0,g2,g2 # calculate byte addr of byte after last in src1 - -.Lwloop: - cmpo g0,g2 - ld (g0), g5 # fetch word of source_1 - bge Lequal_exit # quit (equal) if max_bytes exhausted - ld (g1), g3 # fetch word of source_2 - addo 4,g0,g0 # post-increment source_1 byte ptr - addo 4,g1,g1 # post-increment source_2 byte ptr - cmpobe g5,g3,.Lwloop # branch if source words are equal - - ldconst 0xff,g4 # byte extraction mask - subo 4,g0,g0 # back up src1 pointer - -.Lcloop: and g4,g5,g7 # extract and compare individual bytes - and g4,g3,g6 - cmpobne g7,g6,.diff # branch if they are different - shlo 8,g4,g4 # position mask for next extraction - addo 1,g0,g0 - cmpobl g0,g2,.Lcloop # quit if max_bytes is exhausted - -Lequal_exit: - mov 0,g0 - bx (g13) -.Lrett: - ret - -.diff: bl .neg # arrays differ at current byte. - /* return 1 or -1 appropriately */ - mov 1,g0 - bx (g13) -.neg: subi 1,0,g0 -.Lexit: - bx (g13) - -/* end or memcmp */ diff --git a/newlib/libc/machine/i960/memcmp_ca.S b/newlib/libc/machine/i960/memcmp_ca.S deleted file mode 100644 index 317ea89bf..000000000 --- a/newlib/libc/machine/i960/memcmp_ca.S +++ /dev/null @@ -1,205 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memcm_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1992,1993 Intel Corp., all rights reserved - */ - -/* - procedure memcmp (optimized assembler version for the CA) - - result = memcmp (src1_addr, src2_addr, max_bytes) - - compare the byte array pointed to by src1_addr to the byte array - pointed to by src2_addr. Return 0 iff the arrays are equal, -1 if - src1_addr is lexicly less than src2_addr, and 1 if it is lexicly - greater. Do not compare more than max_bytes bytes. - - Undefined behavior will occur if the end of either source array - is in the last word of the program's allocated memory space. This - is so because, in several cases, memcmp will fetch ahead one word. - Disallowing the fetch ahead would impose a severe performance penalty. - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source1 is word aligned, source2 is not - 4) source2 is word aligned, source1 is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g14 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers are sufficient to implement the routine. - The registers are used as follows: - - g0 original src1 ptr; extracted word; return result - g1 src2 ptr; byt extraction mask - g2 maximum number of bytes to compare - g3 src2 word ptr - Little endian - g4 lsw of src1 - g5 msw of src1 - g6 src2 word - g7 src1 word ptr - Big endian - g4 msw of src1 - g5 lsw of src1 - g6 src1 word ptr - g7 src2 word - g13 return address - g14 shift count -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g4 -#define LSW g5 -#define SRC1 g6 -#define SRC2 g7 -#else -#define LSW g4 -#define MSW g5 -#define SRC2 g6 -#define SRC1 g7 -#endif - - .globl _memcmp - .globl __memcmp - .leafproc _memcmp, __memcmp - .align 2 -_memcmp: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memcmp: -Lrestart: -#if __i960_BIG_ENDIAN__ - subo 1,g0,SRC1 - notand SRC1,3,SRC1 # extract word addr of start of src1 -#else - notand g0,3,SRC1 # extract word addr of start of src1 -#endif - lda (g14),g13 # preserve return address - cmpibge.f 0,g2,Lequal_exit # return equality if number bytes 0 - notand g1,3,g3 # extract word addr of start of src2 - ld (SRC1),LSW # fetch word with at least first byte of src1 - cmpo g3,g1 # check alignment of src2 - ld 4(SRC1),MSW # fetch second word of src1 - shlo 3,g0,g14 # compute shift count for src1 -#if __i960_BIG_ENDIAN__ - subo g14,0,g14 # adjust shift count for big endian. -#endif - ld (g3),SRC2 # fetch word with at least first byte of src2 - eshro g14,g4,LSW # extract word of src1 - lda 8(SRC1),SRC1 # advance src1 word addr - bne.f Lsrc2_unaligned # branch if src2 is NOT word aligned - - mov LSW,g0 # at least src2 is word aligned - - lda 0xff,g1 - -Lwloop: # word comparing loop - cmpo SRC2,g0 # compare src1 and src2 words - lda 4(g3),g3 # pre-increment src2 addr - mov MSW,LSW # move msw of src1 to lsw - ld (SRC1),MSW # pre-fetch next msw of src1 - subi 4,g2,g2 # decrement maximum byte count - bne.f Lcloop # branch if src1 and src2 unequal - cmpi 0,g2 - ld (g3),SRC2 # pre-fetch next word of src2 - eshro g14,g4,g0 # extract word of src1 - lda 4(SRC1),SRC1 # post-increment src1 addr - bl.t Lwloop # branch if max_bytes not reached yet - - b Lequal_exit # strings were equal up through max_bytes - -Lcloop_setup: # setup for coming from Lsrc2_unaligned - mov LSW,g0 # restore extracted src1 word - subo 4,g2,g2 # make up for later re-incrementing - lda 0xff,g1 # byte extraction mask - -Lcloop: # character comparing loop -#if __i960_BIG_ENDIAN__ - rotate 24,g1,g1 # shift mask for next byte -#endif - and SRC2,g1,g3 # extract next char of src2 - and g0,g1,LSW # extract next char of src1 - cmpobne.f LSW,g3,.diff # check for equality -#if ! __i960_BIG_ENDIAN__ - shlo 8,g1,g1 # shift mask for next byte -#endif - subi 1,g2,g2 # decrement character counter - b Lcloop # branch if null not reached - - -Lequal_exit: # words are equal up thru null byte - mov 0,g14 # conform to register conventions - lda 0,g0 # return zero, indicating equality - bx (g13) # return -Lrett: - ret - -.diff: - addo 4,g2,g2 # to make up for extra decrement in loop - lda 0,g14 - bl Lless_than_exit -Lgreater_than_exit: - cmpibge.f 0,g2,Lequal_exit # branch if difference is beyond max_bytes - mov 1,g0 - bx (g13) # g0 = 1 (src1 > src2) -Lless_than_exit: - cmpibge.f 0,g2,Lequal_exit # branch if difference is beyond max_bytes - subi 1,0,g0 - bx (g13) # g0 = -1 (src1 < src2) - -Lsrc2_unaligned: - notor g1,3,g14 # first step in computing new src1 ptr - ld 4(g3),SRC1 # fetch second word of src2 - shlo 3,g1,MSW # compute shift count for src2 -#if __i960_BIG_ENDIAN__ - subo MSW,0,MSW -#endif - eshro MSW,g6,SRC2 # extract word of src2 - cmpo LSW,SRC2 # compare src1 and src2 words - lda 4(g3),g1 # set new src2 ptr - bne.f Lcloop_setup # first four bytes differ - subo g14,g0,g0 # second (final) step in computing new src1 ptr - addi g14,g2,g2 # compute new max_bytes too - lda (g13),g14 # prepare return pointer for Lrestart - b Lrestart # continue with both string fetches shifted diff --git a/newlib/libc/machine/i960/memcpy.S b/newlib/libc/machine/i960/memcpy.S deleted file mode 100644 index 8465e474b..000000000 --- a/newlib/libc/machine/i960/memcpy.S +++ /dev/null @@ -1,160 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memcpy.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ -/* - procedure memmove (optimized assembler version for the 80960K series) - procedure memcpy (optimized assembler version for the 80960K series) - - dest_addr = memmove (dest_addr, src_addr, len) - dest_addr = memcpy (dest_addr, src_addr, len) - - copy len bytes pointed to by src_addr to the space pointed to by - dest_addr. Return the original dest_addr. - - These routines will work even if the arrays overlap. The standard - requires this of memmove, but memcpy is allowed to fail if overlap - is present. Nevertheless, it is implemented the same as memmove - because the overhead is trifling. - - Undefined behavior will occur if the end of the source array is in - the last two words of the program's allocated memory space. This - is so because the routine fetches ahead. Disallowing the fetch - ahead would impose a severe performance penalty. - - Strategy: - - Fetch the source array by words and store them by words to the - destination array, until there are fewer than three bytes left - to copy. Then, using the last word of the source (the one that - contains the remaining 0, 1, 2, or 3 bytes to be copied), store - a byte at a time until Ldone. - - Tactics: - - 1) Do NOT try to fetch and store the words in a word aligned manner - because, in my judgement, the performance degradation experienced due - to non-aligned accesses does NOT outweigh the time and complexity added - by the preamble and convoluted body that would be necessary to assure - alignment. This is supported by the intuition that most source and - destination arrays (even more true of most big source arrays) will - be word aligned to begin with. - - 2) For non-overlapping arrays, rather than decrementing len to zero, - I calculate the address of the byte after the last byte of the - destination array, and quit when the destination byte pointer passes - that. - - 3) For overlapping arrays where the source starts at a lower address - than the destination the move is performed in reverse order. - - 4) Overlapping arrays where the source starts at a higher address - are treated like non-overlapping case. Where the two arrays exactly - coincide, the routine is short-circuited; no move is Ldone at all. - This costs only one cycle. -*/ - - .globl _memcpy, _memmove - .globl __memcpy, __memmove - .leafproc _memmove, __memmove - .leafproc _memcpy, __memcpy - .align 2 -_memmove: -_memcpy: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memmove: -__memcpy: - mov g14, g13 # preserve return address - cmpibge 0,g2,Lexit # exit if number of bytes to move is <= zero. - cmpo g0,g1 # does start of dest overlap end of src? - addo g2,g1,g3 - be Lexit # no move necessary if src and dest are same - concmpo g3,g0 - addo g2, g0, g6 - bg Lbackwards # if overlap, then do move backwards - - ld (g1), g7 # fetch first word of source - mov g0, g5 - b Lwloop_b - -Lwloop_a: - ld (g1), g7 # fetch ahead next word of source - st g4, (g5) # store word to dest - addo 4, g5, g5 # post-increment dest pointer -Lwloop_b: # word copying loop - addo 4, g1, g1 # pre-increment src pointer - cmpo g3, g1 # is len <= 3 ? - mov g7, g4 # keep a copy of the current word - bge Lwloop_a # loop if more than 3 bytes to move - cmpobe g6, g5, Lexit # quit if no more bytes to move - -Lcloop_a: # character copying loop (len < 3) - stob g4, (g5) # store a byte - shro 8, g4, g4 # position next byte for storing - addo 1, g5, g5 - cmpobne g6, g5, Lcloop_a # quit if no more bytes to move - -Lexit: - mov 0, g14 - bx (g13) # g0 = dest array address; g14 = 0 -Lrett: - ret - -Lwloop.a: - subo 4, g6, g6 # pre-decrement dest pointer - st g7, (g6) # store word to dest -Lbackwards: # word copying loop - subo 4, g3, g3 # pre-decrement src pointer - cmpo g1, g3 # is len <= 3? - ld (g3), g7 # fetch ahead next word of source - ble Lwloop.a # loop if more than 3 bytes to move - cmpobe g6, g0, Lexit # quit if no more bytes to move - -Lcloop.a: - subo 1, g6, g6 - rotate 8, g7, g7 # position byte for storing - stob g7, (g6) # store byte - cmpobne g6, g0, Lcloop.a # quit if no more bytes to move - b Lexit - -/* end of memmove */ diff --git a/newlib/libc/machine/i960/memcpy_ca.S b/newlib/libc/machine/i960/memcpy_ca.S deleted file mode 100644 index eebfa88a1..000000000 --- a/newlib/libc/machine/i960/memcpy_ca.S +++ /dev/null @@ -1,353 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memcp_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1992,1993 Intel Corp., all rights reserved - */ - -/* - procedure memmove (optimized assembler version for the CA) - procedure memcpy (optimized assembler version for the CA) - - dest_addr = memmove (dest_addr, src_addr, len) - dest_addr = memcpy (dest_addr, src_addr, len) - - copy len bytes pointed to by src_addr to the space pointed to by - dest_addr. Return the original dest_addr. - - Memcpy will fail if the source and destination string overlap - (in particular, if the end of the source is overlapped by the - beginning of the destination). The behavior is undefined. - This is acceptable according to the draft C standard. - Memmove will not fail if overlap exists. - - Undefined behavior will also occur if the end of the source string - (i.e. the terminating null byte) is in the last word of the program's - allocated memory space. This is so because, in several cases, the - routine will fetch ahead one word. Disallowing the fetch ahead would - impose a severe performance penalty. - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source is word aligned, destination is not - 4) destination is word aligned, source is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. The registers are used as follows: - - g0 dest ptr; not modified, so that it may be returned - g1 src ptr; shift count - g2 len - g3 src ptr (word aligned) - g4 dest ptr (word aligned) - g5 -4 for Lbackwards move - Little endian - g6 lsw of double word for extraction of 4 bytes - g7 msw of double word for extraction of 4 bytes - Big endian - g6 msw of double word for extraction of 4 bytes - g7 lsw of double word for extraction of 4 bytes - g13 return address - g14 byte extracted. -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g6 -#define LSW g7 -#else -#define LSW g6 -#define MSW g7 -#endif - - .globl _memmove, _memcpy - .globl __memmove, __memcpy - .leafproc _memmove, __memmove - .leafproc _memcpy, __memcpy - .align 2 -_memcpy: -_memmove: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memcpy: -__memmove: - cmpibge.f 0,g2,Lquick_exit # Lexit if number of bytes to move is <= zero. - cmpo g0,g1 # if dest starts earlier than src ... - lda (g14),g13 # preserve return address - addo g2,g1,g5 # compute addr of byte after last byte of src - be.f Lexit_code # no move necessary if src and dest are same - concmpo g5,g0 # ... or if dest starts after end of src ... - notand g1,3,g3 # extract word addr of start of src - bg.f Lbackwards # ... then drop thru, else do move backwards - cmpo g3,g1 # check alignment of src - ld (g3),LSW # fetch word containing at least first byte - notand g0,3,g4 # extract word addr of start of dest - lda 4(g3),g3 # advance src word addr - bne.f Lcase_245 # branch if src is NOT word aligned - -Lcase_13: - cmpo g0,g4 # check alignment of dest - subo 4,g4,g4 # store is pre-incrementing; back up dest addr - be.t Lcase_1 # branch if dest word aligned - -Lcase_3: # src is word aligned; dest is not - addo 8,g4,g4 # move dest word ptr to first word boundary - lda (g0),g1 # copy dest byte ptr - mov LSW,MSW # make copy of first word of src - lda 32,g14 # initialize shift count to zero (mod 32) - -Lcase_25: -Lcase_3_cloop_at_start: # character copying loop for start of dest str - cmpdeci 0,g2,g2 # is max_bytes exhausted? - be.f Lexit_code # Lexit if max_bytes is exhausted -#if __i960_BIG_ENDIAN__ - rotate 8,MSW,MSW # move next byte into position for extraction - subo 8,g14,g14 # augment the shift counter - stob MSW,(g1) # store the byte in dest -#else - addo 8,g14,g14 # augment the shift counter - stob MSW,(g1) # store the byte in dest - shro 8,MSW,MSW # move next byte into position for extraction -#endif - lda 1(g1),g1 # post-increment dest ptr - cmpobne.t g1,g4,Lcase_3_cloop_at_start # branch if reached word boundary - - ld (g3),MSW # fetch msw of operand for double shift - -Lcase_4: -Lcase_3_wloop: - cmpi g2,4 # less than four bytes to move? - lda 4(g3),g3 # post-increment src word addr - eshro g14,g6,g1 # extract 4 bytes of src - bl.f Lcase_3_cloop # branch if < four bytes left to move - mov MSW,LSW # move msw to lsw - ld (g3),MSW # pre-fetch msw of operand for double shift - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - st g1,(g4) # store 4 bytes to dest - addo 4,g4,g4 # post-increment dest ptr - b Lcase_3_wloop - -Lcase_1_wloop: # word copying loop - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - ld (g3),LSW # pre-fetch next word of src - addo 4,g3,g3 # post-increment src addr - st g1,(g4) # store word in dest string -Lcase_1: # src and dest are word aligned - cmpi g2,4 # check for fewer than four bytes to move - addo 4,g4,g4 # pre-increment dest addr - lda (LSW),g1 # keep a copy of the src word - bge.t Lcase_1_wloop # branch if at least four bytes to copy -Lcase_3_cloop: - cmpibe.f 0,g2,Lexit_code # Lexit if max_bytes is exhausted - -Lcase_1_cloop: -#if __i960_BIG_ENDIAN__ - rotate 8,g1,g1 # move next byte into position for extraction -#endif - subi 1,g2,g2 - stob g1,(g4) # store the byte in dest - cmpi 0,g2 - lda 1(g4),g4 # post-increment dest byte addr -#if ! __i960_BIG_ENDIAN__ - shro 8,g1,g1 # move next byte into position for extraction -#endif - bne.t Lcase_1_cloop # Lexit if max_bytes is exhausted - -Lexit_code: - mov 0,g14 # conform to register conventions - bx (g13) # g0 = addr of dest; g14 = 0 -Lrett: - ret - - -Lcase_245: - cmpo g0,g4 # check alignment of dest - ld (g3),MSW # pre-fetch second half - and 3,g1,g1 # compute shift count - shlo 3,g1,g14 -#if __i960_BIG_ENDIAN__ - subo g14,0,g14 # adjust shift count for big endian -#endif - be.t Lcase_4 # branch if dest is word aligned - or g4,g1,g1 # is src earlier in word, later, or sync w/ dst - cmpo g0,g1 # < indicates first word of dest has more bytes - lda 4(g4),g4 # move dest word addr to first word boundary - eshro g14,g6,g5 # extract four bytes - lda (g0),g1 -#if __i960_BIG_ENDIAN__ - bge.f 1f -#else - bg.f 1f -#endif - mov MSW,LSW - lda 4(g3),g3 # move src word addr to second word boundary -1: - mov g5,MSW - b Lcase_25 - - -Lbackwards: - notand g5,3,MSW # extract word addr of byte after end of src - cmpo MSW,g5 # check alignment of end of src - subo 4,MSW,g3 # retreat src word addr - addo g2,g0,g1 # compute addr of byte after end of dest - notand g1,3,g4 # extract word addr of start of dest - bne.f Lcase.245 # branch if src is NOT word aligned - -Lcase.13: - cmpo g1,g4 # check alignment of dest - ld (g3),MSW # fetch last word of src - subo 4,g3,g3 # retreat src word addr - be.t Lcase.1 # branch if dest word aligned - -Lcase.3: # src is word aligned; dest is not - mov MSW,LSW # make copy of first word of src - lda 32,g14 # initialize shift count to zero (mod 32) - -Lcase.25: -Lcase.3_cloop_at_start: # character copying loop for start of dest str - cmpdeci 0,g2,g2 # is max.bytes exhausted? - be.f Lexit_code # Lexit if max_bytes is exhausted -#if ! __i960_BIG_ENDIAN__ - rotate 8,LSW,LSW # move next byte into position for storing -#endif - lda -1(g1),g1 # pre-decrement dest ptr - cmpo g1,g4 # have we reached word boundary in dest yet? - stob LSW,(g1) # store the byte in dest -#if __i960_BIG_ENDIAN__ - shro 8,LSW,LSW # move next byte into position for storing - addo 8,g14,g14 # augment the shift counter -#else - subo 8,g14,g14 # augment the shift counter -#endif - bne.t Lcase.3_cloop_at_start # branch if reached word boundary? - - ld (g3),LSW # fetch lsw of operand for double shift - -#if __i960_BIG_ENDIAN__ - cmpobne 0,g14,Lcase.3_wloop -Lcase.3_wloop2: - cmpi g2,4 # less than four bytes to move? - lda -4(g3),g3 # post-decrement src word addr - mov MSW,g1 # extract 4 bytes of src - lda (LSW),MSW # move lsw to msw - subo 4,g4,g4 # pre-decrement dest ptr - bl.f Lcase.3_cloop # branch if < four bytes left to move - ld (g3),LSW # pre-fetch lsw of operand for double shift - subi 4,g2,g2 # decrease max.byte count by the 4 bytes moved - st g1,(g4) # store 4 bytes to dest - b Lcase.3_wloop2 -#endif - -Lcase.4: -Lcase.3_wloop: - cmpi g2,4 # less than four bytes to move? - lda -4(g3),g3 # post-decrement src word addr - eshro g14,g6,g1 # extract 4 bytes of src - lda (LSW),MSW # move lsw to msw - subo 4,g4,g4 # pre-decrement dest ptr - bl.f Lcase.3_cloop # branch if < four bytes left to move - ld (g3),LSW # pre-fetch lsw of operand for double shift - subi 4,g2,g2 # decrease max.byte count by the 4 bytes moved - st g1,(g4) # store 4 bytes to dest - b Lcase.3_wloop - -Lcase.1_wloop: # word copying loop - subi 4,g2,g2 # decrease max.byte count by the 4 bytes moved - ld (g3),MSW # pre-fetch next word of src - subo 4,g3,g3 # post-decrement src addr - st g1,(g4) # store word in dest string -Lcase.1: # src and dest are word aligned - cmpi g2,4 # check for fewer than four bytes to move - subo 4,g4,g4 # pre-decrement dest addr - lda (MSW),g1 # keep a copy of the src word - bge.t Lcase.1_wloop # branch if at least four bytes to copy -Lcase.3_cloop: - cmpibe.f 0,g2,Lexit_code # Lexit if max_bytes is exhausted -#if ! __i960_BIG_ENDIAN__ - rotate 8,g1,g1 # move next byte into position for storing -#endif - lda 4(g4),g4 # pre-decremented dest addr 4 too much - -Lcase.1_cloop: - subi 1,g4,g4 # pre-decrement dest byte addr - cmpi g4,g0 # has dest ptr reached beginning of dest? - stob g1,(g4) # store the byte in dest -#if __i960_BIG_ENDIAN__ - shro 8,g1,g1 # move next byte into position for storing -#else - rotate 8,g1,g1 # move next byte into position for storing -#endif - bne.t Lcase.1_cloop # Lexit if move is completed - b Lexit_code - -Lcase.245: - cmpo g1,g4 # check alignment of dest - ld (MSW),MSW # pre-fetch word with at least last byte - and 3,g5,g5 # compute shift count - ld (g3),LSW # pre-fetch second to last word - shlo 3,g5,g14 -#if __i960_BIG_ENDIAN__ - subo g14,0,g14 # adjust shift count for big endian -#endif - be.t Lcase.4 # branch if dest is word aligned - or g4,g5,g5 # is src earlier in word, later, or sync w/ dst - cmpo g1,g5 # < indicates last word of dest has less bytes - eshro g14,g6,g5 # extract four bytes - bl.t 1f - mov LSW,MSW -#if ! __i960_BIG_ENDIAN__ - be.t 1f -#endif - subo 4,g3,g3 # move src word addr to second word boundary -1: - mov g5,LSW - b Lcase.25 - - -Lquick_exit: - mov g14,g13 - b Lexit_code - -/* end of memmove */ diff --git a/newlib/libc/machine/i960/memset.S b/newlib/libc/machine/i960/memset.S deleted file mode 100644 index 9121d4524..000000000 --- a/newlib/libc/machine/i960/memset.S +++ /dev/null @@ -1,121 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "memset.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1989,1993 Intel Corp., all rights reserved - */ - -/* - procedure memset (optimized assembler version: 80960K series, 80960CA) - - dest_addr = memset (dest_addr, char, len) - - Fill len bytes pointed to by dest_addr with the value of char. - Return the original address of dest_addr. - - This program avoids performing unaligned accesses. It stores - from zero to seven bytes, and then stores aligned longwords, - and then stores from zero to seven bytes, as necessary to - store len bytes starting at dest_addr. - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. -*/ - - .globl _memset - .globl __memset - .leafproc _memset, __memset - .align 2 -_memset: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__memset: - cmpo 7,g2 # are there fewer than seven characters to move? - lda (g14),g13 # save return address - notand g0,7,g3 # test for non-aligned dest_ptr - lda 0,g14 # conform to register conventions - shlo 24,g1,g4 # prepare word of char - lda (g0),g6 # preserve dest_ptr for return - shro 8,g4,g5 - bge.f Lcloop_setup - cmpo g3,g0 # is dest longword aligned - lda 7(g3),g3 # bump dest_ptr to next longword boundary - or g4,g5,g4 - be.t Lwloop_setup - -Lbgn_cloop: - cmpo g6,g3 # Have we reached longword boundary? - stob g1,(g6) # store one byte of char - subo 1,g2,g2 # decrement len - lda 1(g6),g6 # increment dest_ptr - bne.t Lbgn_cloop # loop if more bytes to store before longword - - cmpobge.f 7,g2,Lcloop - -Lwloop_setup: - shro 16,g4,g5 - or g4,g5,g4 - mov g4,g5 # now have a longword of char - -Lwloop: - cmpo 15,g2 # Do we have to store more longwords? - stl g4,(g6) # Store longword of char - subo 8,g2,g2 # Decrement len - lda 8(g6),g6 # Increment dest_ptr - bl.t Lwloop # loop if more longwords to store - -Lcloop_setup: - cmpobge.t 0,g2,Lexit - -Lcloop: - cmpo 1,g2 # Is len exhausted? - stob g1,(g6) # Store byte - subo 1,g2,g2 # Decrement len - lda 1(g6),g6 # Increment dest_ptr - bne.t Lcloop # loop if more bytes to store - -Lexit: - bx (g13) -Lrett: - ret - -/* end of memset */ diff --git a/newlib/libc/machine/i960/setjmp.S b/newlib/libc/machine/i960/setjmp.S deleted file mode 100644 index 804df0e0f..000000000 --- a/newlib/libc/machine/i960/setjmp.S +++ /dev/null @@ -1,96 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - -/******************************************************************************/ -/* */ -/* setjmp(), longjmp() */ -/* */ -/******************************************************************************/ - .file "setjmp.as" - .text - /* .link_pix */ - - .align 4 - .globl _setjmp -_setjmp: - flushreg - andnot 0xf,pfp,g1 /* get pfp, mask out return status bits */ - st g1, 0x58(g0) /* save fp of caller*/ - /* save globals not killed by the calling convention */ - stq g8, 0x40(g0) /* save g8-g11*/ - st g12, 0x50(g0) /* save g12*/ - st g14, 0x54(g0) /* save g14*/ - /* save previous frame local registers */ - ldq (g1), g4 /* get previous frame pfp, sp, rip, r3 */ - stq g4, (g0) /* save pfp, sp, rip, r3 */ - ldq 0x10(g1), g4 /* get previous frame r4-r7 */ - stq g4, 0x10(g0) /* save r4-r7 */ - ldq 0x20(g1), g4 /* get previous frame r8-r11 */ - stq g4, 0x20(g0) /* save r8-r11 */ - ldq 0x30(g1), g4 /* get previous frame r12-r15 */ - stq g4, 0x30(g0) /* save r12-r15 */ - - mov 0, g0 /* return 0 */ - ret - - /* - * fake a return to the place that called the corresponding _setjmp - */ - .align 4 - .globl _longjmp -_longjmp: - call 0f /* ensure there is at least one stack frame */ - -0: - flushreg /* do this before swapping stack */ - ld 0x58(g0), pfp /* get fp of caller of setjmp */ - /* restore local registers - * the following code modifies the frame of the function which originally - * called setjmp. - */ - ldq (g0), g4 /* get pfp, sp, rip, r3 */ - stq g4, (pfp) /* restore pfp, sp, rip, r3 */ - ldq 0x10(g0), g4 /* get r4-r7 */ - stq g4, 0x10(pfp) /* restore r4-r7 */ - ldq 0x20(g0), g4 /* get r8-r11 */ - stq g4, 0x20(pfp) /* restore r8-r11 */ - ldq 0x30(g0), g4 /* get r12-r15 */ - stq g4, 0x30(pfp) /* restore r12-r15 */ - /* restore global registers */ - ldq 0x40(g0), g8 /* get old g8-g11 values */ - ld 0x50(g0), g12 /* get old g12 value */ - ld 0x54(g0), g14 /* get old g14 value */ - - mov g1, g0 /* get return value */ - cmpo g0, 0 /* make sure it is not zero */ - bne 0f - mov 1, g0 /* return 1 by default */ -0: - ret /* return to caller of _setjmp */ diff --git a/newlib/libc/machine/i960/strchr.S b/newlib/libc/machine/i960/strchr.S deleted file mode 100644 index bc50c2c41..000000000 --- a/newlib/libc/machine/i960/strchr.S +++ /dev/null @@ -1,123 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strchr.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strchr (optimized assembler version for the 80960K series) - - src_addr = strchr (src_addr, char) - - return a pointer to the first byte that contains the indicated - byte in the source string. Return null if the byte is not found. - - Undefined behavior will occur if the end of the source string (i.e. - the terminating null byte) is in the last two words of the program's - allocated memory space. This is so because strchr fetches ahead. - Disallowing the fetch ahead would impose a severe performance penalty. - - Strategy: - - Fetch the source string by words and scanbyte the words for the - char until either a word with the byte is found or the null byte is - encountered. In the former case, move through the word to find the - matching byte and return its memory address. In the latter case, - return zero (null). - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble that would be necessary to assure alignment. This - is supported by the intuition that most source arrays (even more - true of most big source arrays) will be word aligned to begin with. -*/ - - .globl _strchr - .globl __strchr - .leafproc _strchr, __strchr - .align 2 -_strchr: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strchr: - - ld (g0),g4 # fetch first word - lda 0xff,g7 # byte extraction mask - and g1,g7,g1 # make char an 8-bit ordinal - shlo 8,g1,g2 # broadcast the char to four bytes - or g1,g2,g2 - shlo 16,g2,g5 - or g2,g5,g3 - mov g14,g13 # preserve return address - addo 4,g0,g0 # post-increment src pointer - mov 0,g14 # conform to register linkage standard - -Lsearch_for_word_with_char_or_null: - mov g4,g5 # copy word - scanbyte g3,g5 # check for byte with char - ld (g0),g4 # fetch next word of src - bo Lsearch_for_char # branch if char found - scanbyte 0,g5 # check for null byte - addo 4,g0,g0 # post-increment src pointer - bno Lsearch_for_word_with_char_or_null # branch if not null - -Lnot_found: - mov 0,g0 # char not found. Return null -Lexit_code: - bx (g13) # g0 = addr of char in src (or null); g14 = 0 -Lrett: - ret - -Lsearch_for_char: - subo 5,g0,g0 # back up the byte pointer -Lsearch_for_char.a: - and g5,g7,g6 # extract byte - cmpo g1,g6 # is it char? - addo 1,g0,g0 # bump src byte ptr - shro 8,g5,g5 # shift word to position next byte - be Lexit_code - cmpobne 0,g6,Lsearch_for_char.a # quit if null comes before char - b Lnot_found - -/* end of strchr */ diff --git a/newlib/libc/machine/i960/strchr_ca.S b/newlib/libc/machine/i960/strchr_ca.S deleted file mode 100644 index f52eae217..000000000 --- a/newlib/libc/machine/i960/strchr_ca.S +++ /dev/null @@ -1,152 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strch_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strchr (optimized assembler version for the CA) - - src_addr = strchr (src_addr, char) - - return a pointer to the first byte that contains the indicated - byte in the source string. Return null if the byte is not found. - - Undefined behavior will occur if the end of the source string (i.e. - the terminating null byte) is in the last two words of the program's - allocated memory space. This is so because, in several cases, strchr - will fetch ahead. Disallowing the fetch ahead would impose a severe - performance penalty. - - This program handles two cases: - - 1) the argument starts on a word boundary - 2) the argument doesn't start on a word boundary - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. The registers are used as follows: - - g0 src ptr; upon return it is a pointer to the matching byte, or null - g1 char to seek - g2 mask to avoid unimportant bytes in first word - g3 char to seek, broadcast to all four bytes - g4 word of the source string - g5 copy of the word - g6 extracted character - g7 byte extraction mask - g13 return address - g14 -*/ - - .globl _strchr - .globl __strchr - .leafproc _strchr, __strchr - .align 2 -_strchr: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strchr: - - lda 0xff,g7 # byte extraction mask - and g1,g7,g1 # make char an 8-bit ordinal - shlo 8,g1,g2 # broadcast the char to four bytes - or g1,g2,g2 - shlo 16,g2,g4 - cmpo g1,g7 # is char being sought 0xff? - or g4,g2,g3 - lda (g14),g13 # preserve return address - notand g0,3,g5 # extract word addr of start of src - lda 0,g14 # conform to register linkage standard - and g0,3,g6 # extract byte offset of src - ld (g5),g4 # fetch word containing at least first byte - shlo 3,g6,g6 # get shift count for making mask for first word - lda 4(g5),g0 # post-increment src word pointer - subi 1,0,g5 # mask initially all ones -#if __i960_BIG_ENDIAN__ - shro g6,g5,g5 # get mask for bytes needed from first word -#else - shlo g6,g5,g5 # get mask for bytes needed from first word -#endif - notor g4,g5,g4 # set unneeded bytes to all ones - be.f Lsearch_for_0xff # branch if seeking 0xff - -Lsearch_for_word_with_char_or_null: - scanbyte g3,g4 # check for byte with char - lda (g4),g5 # copy word - ld (g0),g4 # fetch next word of src - bo.f Lsearch_for_char # branch if null found - scanbyte 0,g5 # check for null byte - lda 4(g0),g0 # post-increment src word pointer - bno.t Lsearch_for_word_with_char_or_null # branch if not null - -Lnot_found: - mov 0,g0 # char not found. Return null -Lexit_code: - bx (g13) # g0 = addr of char in src (or null); g14 = 0 -Lrett: - ret - -Lsearch_for_char: - subo 5,g0,g0 # back up the byte pointer -Lsearch_for_char.a: -#if __i960_BIG_ENDIAN__ - rotate 8,g5,g5 # shift word to position next byte -#endif - and g5,g7,g6 # extract byte - cmpo g1,g6 # is it char? - lda 1(g0),g0 # bump src byte ptr -#if ! __i960_BIG_ENDIAN__ - shro 8,g5,g5 # shift word to position next byte -#endif - be.f Lexit_code - cmpobne.t 0,g6,Lsearch_for_char.a # quit if null comes before char - b Lnot_found - -Lsearch_for_0xff: - lda 0xf0f0f0f0,g2 # make first comparison mask for char=-1 case. - or g5,g2,g2 - and g4,g2,g4 # make unimportant bytes of first word 0x0f - b Lsearch_for_word_with_char_or_null - -/* end of strchr */ - diff --git a/newlib/libc/machine/i960/strcmp.S b/newlib/libc/machine/i960/strcmp.S deleted file mode 100644 index c0cd4bd6f..000000000 --- a/newlib/libc/machine/i960/strcmp.S +++ /dev/null @@ -1,118 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strcmp.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ -/* - procedure strcmp (optimized assembler version for the 80960K Series) - - result = strcmp (src1_addr, src2_addr) - - compare the null terminated string pointed to by src1_addr to - the string pointed to by src2_addr. Return 0 iff the strings - are equal, -1 if src1_addr is lexicographically less than src2_addr, - and 1 if it is lexicographically greater. - - Undefined behavior will occur if the end of either source string - (i.e. the terminating null byte) is in the last two words of the - program's allocated memory space. This is so because strcmp fetches - ahead. Disallowing the fetch ahead would impose a severe performance - penalty. - - Strategy: - - Fetch the source strings by words and compare the words until either - differing words are found or the null byte is encountered. In either - case, move through the word until either the differing byte if found, - in which case return -1 or 1 appropriately; or the null byte is - encountered, in which case, return zero (equality). - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble and convoluted body that would be necessary to assure - alignment. This is supported by the intuition that many source - strings will be word aligned to begin with. -*/ - - .globl _strcmp - .globl __strcmp - .leafproc _strcmp,__strcmp - .align 2 - -_strcmp: -#ifndef __PIC - lda .Lrett,g14 -#else - lda .Lrett-(.+8)(ip),g14 -#endif -__strcmp: - ld (g0), g5 # fetch first word of source_1 - mov g14,g7 # preserve return address - ldconst 0,g14 # conform to register conventions - ldconst 0xff,g4 # byte extraction mask -.Lwloop: - addo 4,g0,g0 # post-increment source_1 byte ptr - ld (g1), g3 # fetch word of source_2 - scanbyte 0,g5 # does word have a null byte? - mov g5,g2 # save a copy of the source_1 word - be .Lcloop # branch if null byte encountered - cmpo g2,g3 # are the source words the same? - addo 4,g1,g1 # post-increment source_2 byte ptr - ld (g0), g5 # fetch ahead next word of source_1 - be .Lwloop # fall thru if words are unequal - -.Lcloop: and g4,g2,g5 # extract and compare individual bytes - and g4,g3,g6 - cmpobne g5,g6,.diff # if they differ, go return 1 or -1 - cmpo 0,g6 # they are the same. Are they null? - shlo 8,g4,g4 # position mask for next extraction - bne .Lcloop # loop if null not encountered - - mov 0,g0 # return equality - bx (g7) -.Lrett: - ret -.diff: bl .neg - mov 1,g0 - bx (g7) -.neg: subi 1,0,g0 -.Lexit: - bx (g7) diff --git a/newlib/libc/machine/i960/strcmp_ca.S b/newlib/libc/machine/i960/strcmp_ca.S deleted file mode 100644 index 0298ffa0d..000000000 --- a/newlib/libc/machine/i960/strcmp_ca.S +++ /dev/null @@ -1,246 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strcm_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strcmp (optimized assembler version for the CA) - - result = strcmp (src1_addr, src2_addr) - - compare the null terminated string pointed to by src1_addr to - the string space pointed to by src2_addr. Return 0 iff the strings - are equal, -1 if src1_addr is lexicly less than src2_addr, and 1 - if it is lexicly greater. - - Undefined behavior will occur if the end of either source string - (i.e. the terminating null byte) is in the last word of the program's - allocated memory space. This is so because, in several cases, strcmp - will fetch ahead one word. Disallowing the fetch ahead would impose - a severe performance penalty. - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source1 is word aligned, source2 is not - 4) source2 is word aligned, source1 is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g14 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers are sufficient to implement the routine. - The registers are used as follows: - - g0 original src1 ptr; return result - g1 src2 ptr; 0xff -- byte extraction mask - g2 src1 word ptr - g3 src2 word ptr - Little endian: - g4 lsw of src1 - g5 msw of src1 - g6 src2 word - g7 extracted src1 - Big endian: - g4 msw of src1 - g5 lsw of src1 - g6 extracted src1 - g7 src2 word - g13 return address - g14 shift count -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g4 -#define LSW g5 -#define SRC1 g6 -#define SRC2 g7 -#else -#define LSW g4 -#define MSW g5 -#define SRC2 g6 -#define SRC1 g7 -#endif - - .globl _strcmp - .globl __strcmp - .leafproc _strcmp, __strcmp - .align 2 -_strcmp: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif - -__strcmp: -Lrestart: - notand g0,3,g2 # extract word addr of start of src1 - lda (g14),g13 # preserve return address -#if __i960_BIG_ENDIAN__ - cmpo g0,g2 # check alignment of src1 -#endif - ld (g2),LSW # fetch word with at least first byte of src1 - notand g1,3,g3 # extract word addr of start of src2 - ld 4(g2),MSW # fetch second word of src1 -#if __i960_BIG_ENDIAN__ - bne Lsrc1_unaligned # branch if src1 is unaligned - cmpo g3,g1 # check alignment of src2 - ld (g3),SRC2 # fetch word with at least first byte of src2 - mov LSW,SRC1 # extract word of src1 - lda 8(g2),g2 # advance src1 word addr - bne.f Lsrc2_unaligned # branch if src2 is NOT word aligned - - /* src2 is word aligned */ - -Lwloop2: # word comparing loop - cmpo SRC2,SRC1 # compare src1 and src2 words - lda 0xff000000,g1 # byte extraction mask - mov MSW,LSW # move msw of src1 to lsw - ld (g2),MSW # pre-fetch next msw of src1 - addo 4,g2,g2 # post-increment src1 addr - lda 4(g3),g3 # pre-increment src2 addr - bne.f Lcloop # branch if src1 and src2 unequal - scanbyte 0,SRC1 # check for null byte in src1 word - ld (g3),SRC2 # pre-fetch next word of src2 - mov LSW,SRC1 # extract word of src1 - lda 0,g0 # prepare to return zero, indicating equality - bno.t Lwloop2 # branch if null byte not encountered - - /* words were equal and contained null byte */ - - mov 0,g14 # conform to register conventions - bx (g13) # return - - -Lsrc1_unaligned: -#endif - cmpo g3,g1 # check alignment of src2 - ld (g3),SRC2 # fetch word with at least first byte of src2 - shlo 3,g0,g14 # compute shift count for src1 -#if __i960_BIG_ENDIAN__ - subo g14,0,g14 # 32 - shift count for big endian. -#endif - eshro g14,g4,SRC1 # extract word of src1 - lda 8(g2),g2 # advance src1 word addr - bne.f Lsrc2_unaligned # branch if src2 is NOT word aligned - - /* at least src2 is word aligned */ - -Lwloop: # word comparing loop - cmpo SRC2,SRC1 # compare src1 and src2 words -#if __i960_BIG_ENDIAN__ - lda 0xff000000,g1 # byte extraction mask -#else - lda 0xff,g1 # byte extraction mask -#endif - mov MSW,LSW # move msw of src1 to lsw - ld (g2),MSW # pre-fetch next msw of src1 - addo 4,g2,g2 # post-increment src1 addr - lda 4(g3),g3 # pre-increment src2 addr - bne.f Lcloop # branch if src1 and src2 unequal - scanbyte 0,SRC1 # check for null byte in src1 word - ld (g3),SRC2 # pre-fetch next word of src2 - eshro g14,g4,SRC1 # extract word of src1 - lda 0,g0 # prepare to return zero, indicating equality - bno.t Lwloop # branch if null byte not encountered - - /* words were equal and contained null byte */ - - mov 0,g14 # conform to register conventions - bx (g13) # return - -Lcloop_setup: # setup for coming from Lsrc2_unaligned - mov LSW,SRC1 # restore extracted src1 word -#if __i960_BIG_ENDIAN__ - lda 0xff000000,g1 # byte extraction mask -#else - lda 0xff,g1 # byte extraction mask -#endif - -Lcloop: # character comparing loop - and SRC2,g1,g3 # extract next char of src2 - and SRC1,g1,g0 # extract next char of src1 - cmpobne.f g0,g3,.diff # check for equality - cmpo 0,g0 # check for null byte -#if __i960_BIG_ENDIAN__ - shro 8,g1,g1 # shift mask for next byte -#else - shlo 8,g1,g1 # shift mask for next byte -#endif - bne.t Lcloop # branch if null not reached - - /* words are equal up thru null byte */ - - mov 0,g14 - bx (g13) # g0 = 0 (src1 == src2) -Lrett: - ret - -.diff: - mov 0,g14 - bl Lless_than_exit -Lgreater_than_exit: - mov 1,g0 - bx (g13) # g0 = 1 (src1 > src2) -Lless_than_exit: - subi 1,0,g0 - bx (g13) # g0 = -1 (src1 < src2) - -Lsrc2_unaligned: - mov SRC1,LSW # retain src1 extracted word - ld 4(g3),SRC1 # fetch second word of src2 - shlo 3,g1,MSW # compute shift count for src2 -#if __i960_BIG_ENDIAN__ - subo MSW,0,MSW # 32 - shift count for big endian. -#endif - eshro MSW,g6,SRC2 # extract word of src2 - cmpo LSW,SRC2 # compare src1 and src2 words - notor g1,3,MSW # first step in computing new src1 ptr - lda 4(g3),g1 # set new src2 ptr - bne.f Lcloop_setup # first four bytes differ - scanbyte 0,LSW # check for null byte - lda (g13),g14 # prepare return pointer for Lrestart - subo MSW,g0,g0 # second (final) step in computing new src1 ptr - bno.t Lrestart # if null byte not encountered, continue - /* with both string fetches shifted such that */ - /* src2 is now word aligned. */ - mov 0,g14 # conform to register conventions. - lda 0,g0 # return indicator of equality. - bx (g13) diff --git a/newlib/libc/machine/i960/strcpy.S b/newlib/libc/machine/i960/strcpy.S deleted file mode 100644 index ed8bb7234..000000000 --- a/newlib/libc/machine/i960/strcpy.S +++ /dev/null @@ -1,177 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strcpy.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ -/* - procedure strcpy (optimized assembler version for the 80960K series) - procedure strcat (optimized assembler version for the 80960K series) - - dest_addr = strcpy (dest_addr, src_addr) - - copy the null terminated string pointed to by src_addr to - the string space pointed to by dest_addr. Return the original - dest_addr. - - This routine will fail if the source and destination string - overlap (in particular, if the end of the source is overlapped - by the beginning of the destination). The behavior is undefined. - This is acceptable according to the draft C standard. - - Undefined behavior will also occur if the end of the source string - (i.e. the terminating null byte) is in the last two words of the - program's allocated memory space. This is so because strcpy fetches - ahead. Disallowing the fetch ahead would impose a severe performance - penalty. - - Strategy: - - Fetch the source string and store the destination string by words - until the null byte is encountered. When the word with the null - byte is reached, store it by bytes up through the null byte only. - - Tactics: - - 1) Do NOT try to fetch and store the words in a word aligned manner - because, in my judgement, the performance degradation experienced due - to non-aligned accesses does NOT outweigh the time and complexity added - by the preamble and convoluted body that would be necessary to assure - alignment. This is supported by the intuition that most source and - destination strings will be word aligned to begin with. - - - procedure strcat - - dest_addr = strcat (dest_addr, src_addr) - - Appends the string pointed to by src_addr to the string pointed - to by dest_addr. The first character of the source string is - copied to the location initially occupied by the trailing null - byte of the destination string. Thereafter, characters are copied - from the source to the destination up thru the null byte that - trails the source string. - - See the strcpy routine, above, for its caveats, as they apply here too. - - Strategy: - - Skip to the end (null byte) of the destination string, and then drop - into the strcpy code. - - Tactics: - - Skipping to the null byte is Ldone by reading the destination string - in long-words and scanbyte'ing them, then examining the bytes of the - word that contains the null byte, until the address of the null byte is - known. Then we drop into the strcpy routine. It is probable (approx. - three out of four times) that the destination string as strcpy sees - it will NOT be word aligned (i.e. that the null byte won't be the - last byte of a word). But it is not worth the complication to that - routine to force word aligned memory accesses to be gaurenteed. -*/ - .globl _strcpy, _strcat - .globl __strcpy, __strcat - .leafproc _strcpy,__strcpy - .leafproc _strcat,__strcat - .align 2 -_strcat: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strcat: - mov g14,g13 # preserve return address - ldl (g0),g4 # fetch first two words - addo 8,g0,g2 # post-increment src word pointer - lda 0xff,g3 # byte extraction mask - -Lsearch_for_word_with_null_byte: - scanbyte 0,g4 # check for null byte - mov g5,g7 # copy second word - bo.f Lsearch_for_null # branch if null found - scanbyte 0,g7 # check for null byte - ldl (g2),g4 # fetch next pair of word of src - addo 8,g2,g2 # post-increment src word pointer - bno Lsearch_for_word_with_null_byte # branch if null not found yet - - subo 4,g2,g2 # back up the byte pointer - mov g7,g4 # move word with null to search word -Lsearch_for_null: - subo 9,g2,g5 # back up the byte pointer -Lsearch_for_null.a: - and g4,g3,g6 # extract byte - cmpo 0,g6 # is it null? - addo 1,g5,g5 # bump src byte ptr - shro 8,g4,g4 # shift word to position next byte - bne Lsearch_for_null.a - b Lend_of_dest_found - -_strcpy: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strcpy: - mov g0, g5 -Lend_of_dest_found: - ld (g1), g2 # fetch first word of source - mov g14,g6 # preserve return address - lda 0xff, g3 # byte extraction mask = 0xff; -Lwloop: # word copying loop - addo 4, g1, g1 # post-increment source ptr - scanbyte 0, g2 # does source word contain null byte? - mov g2, g4 # save a copy of the source word - be Lcloop # branch if null present - ld (g1), g2 # pre-fetch next word of source - st g4, (g5) # store current word - addo 4, g5, g5 # post-increment dest ptr - b Lwloop - -Lcloop: # character copying loop - and g3, g4, g14 # extract next char - shro 8, g4, g4 # position word for next byte extraction - cmpo 0, g14 # is it null? - stob g14, (g5) # store the byte - addo 1, g5, g5 # post-increment dest ptr - bne Lcloop # quit if null encountered - - bx (g6) # g0 = dest string address; g14 = 0 -Lrett: - ret diff --git a/newlib/libc/machine/i960/strcpy_ca.S b/newlib/libc/machine/i960/strcpy_ca.S deleted file mode 100644 index dbb944455..000000000 --- a/newlib/libc/machine/i960/strcpy_ca.S +++ /dev/null @@ -1,284 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strcp_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strcpy (optimized assembler version for the CA) - - dest_addr = strcpy (dest_addr, src_addr) - - copy the null terminated string pointed to by src_addr to - the string space pointed to by dest_addr. Return the original - dest_addr. - - This routine will fail if the source and destination string - overlap (in particular, if the end of the source is overlapped - by the beginning of the destination). The behavior is undefined. - This is acceptable according to the draft C standard. - - Undefined behavior will also occur if the end of the source string - (i.e. the terminating null byte) is in the last word of the program's - allocated memory space. This is so because, in several cases, strcpy - will fetch ahead one word. Disallowing the fetch ahead would impose - a severe performance penalty. - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source is word aligned, destination is not - 4) destination is word aligned, source is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. The registers are used as follows: - - g0 original dest ptr; not modified, so that it may be returned. - g1 src ptr; shift count - g2 dest ptr; 4 bytes of src - g3 src ptr (word aligned) - g4 dest ptr (word aligned) - g5 0xff -- byte extraction mask - g6 lsw of double word for extraction of 4 bytes (little endian) - msw of double word for extraction of 4 bytes (big endian) - g7 msw of double word for extraction of 4 bytes (little endian) - lsw of double word for extraction of 4 bytes (big endian) - g13 return address - g14 byte extracted. When reaches null byte, which is zero, we will - be in conformance with register conventions, and can return to - the caller with a clear conscience. - - procedure strcat - - dest_addr = strcat (dest_addr, src_addr) - - Appends the string pointed to by src_addr to the string pointed - to by dest_addr. The first character of the source string is - copied to the location initially occupied by the trailing null - byte of the destination string. Thereafter, characters are copied - from the source to the destination up thru the null byte that - trails the source string. -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g6 -#define LSW g7 -#else -#define LSW g6 -#define MSW g7 -#endif - - .globl _strcpy, _strcat - .globl __strcpy, __strcat - .leafproc _strcpy, __strcpy - .leafproc _strcat, __strcat - .align 2 -_strcat: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strcat: - notand g0,3,g4 # extract word addr of start of dest - lda (g14),g13 # preserve return address - and g0,3,LSW # extract byte offset of dest - ld (g4),MSW # fetch word containing at least first byte - shlo 3,LSW,g14 # get shift count for making mask for first word - subi 1,0,LSW # mask initially all ones -#if __i960_BIG_ENDIAN__ - shro g14,LSW,LSW # get mask for bytes needed from first word - lda 0xff000000,g5 # byte extraction mask -#else - shlo g14,LSW,LSW # get mask for bytes needed from first word - lda 0xff,g5 # byte extraction mask -#endif - notor MSW,LSW,MSW # set unneeded bytes to all ones -Lsearch_for_word_with_null: - scanbyte 0,MSW # check for null byte - lda 4(g4),g4 # post-increment dest word pointer - mov MSW,LSW # keep a copy of current word - ld (g4),MSW # fetch next word of dest - bno.t Lsearch_for_word_with_null # branch if null not found yet - and g5,LSW,g14 # extract byte - cmpo 0,g14 # branch if null is first byte of word - subo 4,g4,g4 # move dest word ptr back to word with null - notand g1,3,g3 # extract word addr of start of src - lda (g4),g2 # set dest byte ptr to 1st byte of word w/ null - be.f Lcase_14 -Lsearch_for_null: -#if __i960_BIG_ENDIAN__ - shro 8,g5,g5 # move mask down to next byte -#else - shlo 8,g5,g5 # move mask up to next byte -#endif - lda 1(g2),g2 # move dest byte ptr to next byte - and g5,LSW,g14 # extract byte - cmpobne.t 0,g14,Lsearch_for_null # branch if null is not yet found - lda 0xff,g5 # byte extraction mask - b Lcase_235.a - - -_strcpy: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strcpy: - notand g0,3,g4 # extract word addr of start of dest - lda (g14),g13 # preserve return address - cmpo g0,g4 # check alignment of dest - lda 0xff,g5 # load mask for byte extraction - notand g1,3,g3 # extract word addr of start of src - bne.f Lcase_235 # branch if dest is NOT word aligned - -Lcase_14: - cmpo g3,g1 # check alignment of src - ld (g3),LSW # fetch word containing at least first byte - shlo 3,g1,g1 # compute shift count - lda 4(g3),g3 # advance src word addr -#if __i960_BIG_ENDIAN__ - lda 0xff,g5 # byte extraction mask -#endif - bne.f Lcase_4 # branch if src is NOT word aligned - -Lcase_1: # src and dest are word aligned - subo 4,g4,g4 # store is pre-incrementing; back up dest addr -Lcase_1_wloop: # word copying loop - scanbyte 0,LSW # check for null byte in src word - lda (LSW),g2 # keep a copy of the src word - addo 4,g4,g4 # pre-increment dest addr - ld (g3),LSW # pre-fetch next word of src - addo 4,g3,g3 # post-increment src addr - bo.f Lcase_1_cloop # branch if word contains null byte - st g2,(g4) # store word in dest string - b Lcase_1_wloop - -Lcase_3_cloop: -Lcase_1_cloop: # character copying loop -#if __i960_BIG_ENDIAN__ - rotate 8,g2,g2 # move next byte into position for extraction - and g5,g2,g14 # extract next char -#else - and g5,g2,g14 # extract next char - shro 8,g2,g2 # move next byte into position for extraction -#endif - cmpo 0,g14 # check for null byte - stob g14,(g4) # store the byte in dest - lda 1(g4),g4 # post-increment dest byte addr - bne.t Lcase_1_cloop # branch if null not reached - -Lexit_code: - bx (g13) # g0 = addr of dest; g14 = 0 -Lrett: - ret - -Lcase_3: # src is word aligned; dest is not - addo 4,g4,g4 # move dest word ptr to first word boundary - mov LSW,MSW # make copy of first word of src - lda 0,g1 # initialize shift count to zero - -Lcase_25: -Lcase_3_cloop_at_start: # character copying loop for start of dest str -#if __i960_BIG_ENDIAN__ - rotate 8,MSW,MSW # move next byte into position for extraction - and g5,MSW,g14 # extract next char -#else - and g5,MSW,g14 # extract next char - shro 8,MSW,MSW # move next byte into position for extraction -#endif - cmpo 0,g14 # check for null byte - stob g14,(g2) # store the byte in dest - lda 1(g2),g2 # post-increment dest ptr - be.f Lexit_code # branch if null byte reached - cmpo g2,g4 # have we reached word boundary in dest? - lda 8(g1),g1 # augment the shift counter - bne.t Lcase_3_cloop_at_start - -Lcase_4: - ld (g3),MSW # fetch msw of operand for double shift -#if __i960_BIG_ENDIAN__ - subo g1,0,g1 # Adjust shift count for big endian. -#endif - -Lcase_3_wloop: - eshro g1,g6,g2 # extract 4 bytes of src - lda 4(g3),g3 # post-increment src word addr - scanbyte 0,g2 # check for null byte - lda (MSW),LSW # move msw to lsw - ld (g3),MSW # pre-fetch msw of operand for double shift - bo.f Lcase_3_cloop # branch if word contains null byte - st g2,(g4) # store 4 bytes to dest - addo 4,g4,g4 # post-increment dest ptr - b Lcase_3_wloop - -Lcase_235: - lda (g0),g2 # copy dest ptr -Lcase_235.a: - cmpo g3,g1 # check alignment of src - ld (g3),LSW # fetch word containing at least first byte - and 3,g1,g14 # compute shift count - lda 4(g3),g3 # advance src word addr - shlo 3,g14,g1 - be.t Lcase_3 # branch if dest is word aligned - or g4,g14,g14 # is src earlier in word, later, or sync w/ dst - ld (g3),MSW # pre-fetch second half - cmpo g2,g14 # < indicates first word of dest has more bytes - lda 4(g4),g4 # move dest word addr to first word boundary - /* than first word of source. */ -#if __i960_BIG_ENDIAN__ - subo g1,0,g14 # Adjust shift count for big endian. - eshro g14,g6,g14 # extract four bytes - bge.f 1f -#else - eshro g1,g6,g14 # extract four bytes - bg.f 1f -#endif - mov MSW,LSW - lda 4(g3),g3 # move src word addr to second word boundary -1: - mov g14,MSW - b Lcase_25 - -/* end of strcpy */ - diff --git a/newlib/libc/machine/i960/strcspn.S b/newlib/libc/machine/i960/strcspn.S deleted file mode 100644 index cd7b2e694..000000000 --- a/newlib/libc/machine/i960/strcspn.S +++ /dev/null @@ -1,94 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strcspn.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1989,1993 Intel Corp., all rights reserved - */ - -/* - procedure strcspn (optimized assembler version: 80960K series, 80960CA) - - len = strcspn (string, charset) - - Return the number of characters in the maximum leading segment - of string which consists solely of characters NOT from charset. - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. -*/ - - .globl _strcspn - .globl __strcspn - .leafproc _strcspn, __strcspn - .align 2 - -_strcspn: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strcspn: - mov g14,g13 # save return address - lda (g0),g3 # copy string pointer - mov 0,g14 # conform to register conventions - -Lnext_char: - ldob (g3),g7 # fetch next character of string - addo 1,g1,g2 # g2 will be the charset ptr - ldob (g1),g6 # fetch first character of charset - cmpobe.f 0,g7,Lexit # quit if at end of string -Lscan_set: - cmpo g6,g7 # is charset char same as string char? - ldob (g2),g5 # fetch next charset char - addo 1,g2,g2 # bump charset ptr - be.f Lexit - cmpo g6,0 # is charset exhausted? - lda (g5),g6 - bne.t Lscan_set # check next character of charset - addo 1,g3,g3 # check next character of string - b Lnext_char - -Lexit: - subo g0,g3,g0 # compute string length - bx (g13) -Lrett: - ret - -/* end of strcspn */ diff --git a/newlib/libc/machine/i960/strdup.S b/newlib/libc/machine/i960/strdup.S deleted file mode 100644 index 7e879ff0f..000000000 --- a/newlib/libc/machine/i960/strdup.S +++ /dev/null @@ -1,66 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strdup.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif - -/* - * (c) copyright 1989,1993 Intel Corp., all rights reserved - */ - -/* - procedure strdup (optimized assembler version: 80960K series, 80960CA) - - dest_addr = strdup (src_addr) - - Allocate memory and copy thereto the string pointed to by src_addr. - Return the address of the copy, or null if unable to perform the - operation. -*/ - - .text - .align 2 - .globl _strdup -_strdup: - mov g0,r3 # Keep a copy of the original string addr - callj _strlen # Determine how much to allocate - addo 1,g0,g0 # Add one byte for the null byte at end - callj _malloc # Allocate the storage - cmpo 0,g0 - mov r3,g1 # Original string addr is now src for copy - bne.t _strcpy # Jump if allocation was successful - ret # Return the null ptr otherwise - -/* end of strdup */ diff --git a/newlib/libc/machine/i960/strlen.S b/newlib/libc/machine/i960/strlen.S deleted file mode 100644 index dfbeec29d..000000000 --- a/newlib/libc/machine/i960/strlen.S +++ /dev/null @@ -1,117 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strlen.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif - -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strlen (optimized assembler version for the 80960K series) - - src_addr = strlen (src_addr) - - return the number of bytes that precede the null byte in the - string pointed to by src_addr. - - Undefined behavior will occur if the end of the source string (i.e. - the terminating null byte) is in the last four words of the program's - allocated memory space. This is so because strlen fetches ahead - several words. Disallowing the fetch ahead would impose a severe - performance penalty. - - Strategy: - - Fetch the source array by long-words and scanbyte the words for the - null byte until found. Examine the word in which the null byte is - found, to determine its actual position, and return the length. - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble that would be necessary to assure alignment. This - is supported by the intuition that many source strings will be word - aligned to begin with. -*/ - - .globl _strlen - .globl __strlen - .leafproc _strlen, __strlen - .align 2 -_strlen: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strlen: - - mov g14,g13 # preserve return address - ldl (g0),g4 # fetch first two words - addo 8,g0,g2 # post-increment src word pointer - lda 0xff,g3 # byte extraction mask - - -Lsearch_for_word_with_null_byte: - scanbyte 0,g4 # check for null byte - mov g5,g7 # copy second word - bo.f Lsearch_for_null # branch if null found - scanbyte 0,g7 # check for null byte - ldl (g2),g4 # fetch next pair of word of src - addo 8,g2,g2 # post-increment src word pointer - bno Lsearch_for_word_with_null_byte # branch if null not found yet - - subo 4,g2,g2 # back up the byte pointer - mov g7,g4 # move word with null to search word -Lsearch_for_null: - subo 9,g2,g2 # back up the byte pointer -Lsearch_for_null.a: - and g4,g3,g14 # extract byte - cmpo 0,g14 # is it null? - addo 1,g2,g2 # bump src byte ptr - shro 8,g4,g4 # shift word to position next byte - bne Lsearch_for_null.a - -Lexit_code: - subo g0,g2,g0 # calculate string length - bx (g13) # g0 = addr of src; g14 = 0 -Lrett: - ret - -/* end of strlen */ diff --git a/newlib/libc/machine/i960/strlen_ca.S b/newlib/libc/machine/i960/strlen_ca.S deleted file mode 100644 index 350423bf0..000000000 --- a/newlib/libc/machine/i960/strlen_ca.S +++ /dev/null @@ -1,146 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strle_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strlen (optimized assembler version for the CA) - - src_addr = strlen (src_addr) - - return the number of bytes that precede the null byte in the - string pointed to by src_addr. - - Undefined behavior will occur if the end of the source string (i.e. - the terminating null byte) is in the last four words of the program's - allocated memory space. This is so because, in several cases, strlen - will fetch ahead several words. Disallowing the fetch ahead would - impose a severe performance penalty. - - This program handles two cases: - - 1) the argument starts on a word boundary - 2) the argument doesn't start on a word boundary - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. The registers are used as follows: - - g0 original src ptr; upon return it is the byte count. - g1 - g2 src ptr - g3 mask - g4 even word of the source string - g5 odd word of the source string - g6 copy of even word, shift count - g7 copy of odd word - g13 return address - g14 byte extracted. -*/ - - .globl _strlen - .globl __strlen - .leafproc _strlen, __strlen - .align 2 -_strlen: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strlen: - - notand g0,3,g2 # extract word addr of start of src - lda (g14),g13 # preserve return address - and g0,3,g7 # extract byte offset of src - ld (g2),g5 # fetch word containing at least first byte - shlo 3,g7,g7 # get shift count for making mask for first word - lda 4(g2),g2 # post-increment src word pointer - subi 1,0,g3 # mask initially all ones - chkbit 2,g2 # are we on an even word boundary or an odd one? -#if __i960_BIG_ENDIAN__ - shro g7,g3,g3 # get mask for bytes needed from first word - notor g5,g3,g7 # set unneeded bytes to all ones - lda 0xff000000,g3 # byte extraction mask -#else - shlo g7,g3,g3 # get mask for bytes needed from first word - notor g5,g3,g7 # set unneeded bytes to all ones - lda 0xff,g3 # byte extraction mask -#endif - bno.f Lodd_word # branch if first word is odd - mov g7,g4 # move first word to copy thereof - ld (g2),g5 # load odd word - lda 4(g2),g2 # post-increment src word pointer - - -Leven_word: - scanbyte 0,g4 # check for null byte - movl g4,g6 # copy both words -Lodd_word: # trickery! if we branch here, following branch - /* instruction will fall thru, as we want, */ - /* effecting the load of g4 and g5 only. */ - ldl (g2),g4 # fetch next pair of word of src - bo.f Lsearch_for_null # branch if null found - scanbyte 0,g7 # check for null byte - lda 8(g2),g2 # post-increment src word pointer - bno.t Leven_word # branch if null not found yet - - subo 4,g2,g2 # back up the byte pointer - lda (g7),g6 # move odd word to search word -Lsearch_for_null: - subo 9,g2,g2 # back up the byte pointer -Lsearch_for_null.a: - and g6,g3,g14 # extract byte - cmpo 0,g14 # is it null? - lda 1(g2),g2 # bump src byte ptr -#if __i960_BIG_ENDIAN__ - shlo 8,g6,g6 # shift word to position next byte -#else - shro 8,g6,g6 # shift word to position next byte -#endif - bne.t Lsearch_for_null.a - -Lexit_code: - subo g0,g2,g0 # calculate string length - bx (g13) # g0 = addr of src; g14 = 0 -Lrett: - ret - -/* end of strlen */ diff --git a/newlib/libc/machine/i960/strncat.S b/newlib/libc/machine/i960/strncat.S deleted file mode 100644 index a655824ea..000000000 --- a/newlib/libc/machine/i960/strncat.S +++ /dev/null @@ -1,155 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strncat.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ -/* - procedure strncat (optimized assembler version for the 80960K Series) - - dest_addr = strncat (dest_addr, src_addr, max_bytes) - - append the null terminated string pointed to by src_addr to the null - terminated string pointed to by dest_addr. Return the original - dest_addr. If the source string is longer than max_bytes, then - append only max_bytes bytes, and tack on a null byte on the end. - - This routine will fail if the source and destination string - overlap (in particular, if the end of the source is overlapped - by the beginning of the destination). The behavior is undefined. - This is acceptable according to the draft C standard. - - Undefined behavior will also occur if the end of the source string - (i.e. the terminating null byte) is in the last two words of the - program's allocated memory space. This is so because strncat fetches - ahead. Disallowing the fetch ahead would impose a severe performance - penalty. - - Strategy: - - First, skip to the null byte in the destination string. Then - fetch the source string by words and store them by words to the - destination string, until there are fewer than three bytes left - to copy. Then, using the last word of the source (the one that - contains the remaining 0, 1, 2, or 3 bytes to be copied), store - a byte at a time until Ldone. - - If, before exhausting the max_byte count, the null byte is encountered - in the source string, then just copy up thru the null byte. - - Tactics: - - 1) Do NOT try to fetch and store the words in a word aligned manner - because, in my judgement, the performance degradation experienced due - to non-aligned accesses does NOT outweigh the time and complexity added - by the preamble and convoluted body that would be necessary to assure - alignment. -*/ - - .globl _strncat - .globl __strncat - .leafproc _strncat,__strncat - .align 2 -_strncat: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strncat: - mov g14,g6 - cmpibge 0, g2, Lno_operation # Lexit early if max_bytes <= 0 - mov g0, g5 -Lskip_word_loop: - ld (g5), g7 # fetch word of dest string - addo 4, g5, g5 # post-increment dest ptr - scanbyte 0, g7 # does it contain null byte? - bno Lskip_word_loop # if not, loop - subo 5, g5, g5 # adjust dest ptr - lda 0xff, g3 # byte extraction mask = 0xff; -Lskip_byte_loop: - and g7, g3, g14 # extract byte of last word of dest string - cmpo 0, g14 # is it null? - addo 1, g5, g5 # adjust dest ptr - shro 8, g7, g7 # position next byte for extraction - bne Lskip_byte_loop # loop if null not found yet - - ld (g1), g7 # fetch first word of source string -Lwloop: # word copying loop - cmpo 4, g2 # max_bytes < 4 ? - addo 4, g1, g1 # post-increment source ptr - bge Lcloop.a # branch if less than 4 bytes to move - scanbyte 0, g7 # is null byte reached yet? - mov g7, g4 # keep a copy of the source word - be Lcloop # branch if null byte reached - ld (g1), g7 # pre-fetch next word of source - subo 4, g2, g2 # reduce max_byte counter - st g4, (g5) # store current word - addo 4, g5, g5 # post-increment destination ptr - b Lwloop - -Lcloop.b: - addo 1, g5, g5 # post-increment destination ptr - shro 8, g7, g7 # position next byte for extraction -Lcloop: # character copying loop (max_byte > 3) - and g3, g7, g4 # extract character - cmpo 0, g4 # is it null? - stob g4, (g5) # store it - bne Lcloop.b # loop if null not encountered yet - - bx (g6) # g0 = dest string address; g14 = 0 -Lrett: - ret - -Lcloop.c: - addo 1, g5, g5 # post-increment destination ptr - shro 8, g7, g7 # position next byte for extraction -Lcloop.a: # character copying loop (max_byte <= 3) - cmpdeco 0,g2,g2 # max_byte == 0? - and g3, g7, g4 # extract character - be Ldone # store null and Lexit if max_byte exhausted - cmpo 0, g4 # is it null? - stob g4, (g5) # store it - bne Lcloop.c # loop if null not encountered yet - -Ldone: stob g14, (g5) # store trailing null - bx (g6) # g0 = dest string address; g14 = 0 - -Lno_operation: mov 0, g14 # conform to register conventions - bx (g6) - -/* end of strncat */ diff --git a/newlib/libc/machine/i960/strncat_ca.S b/newlib/libc/machine/i960/strncat_ca.S deleted file mode 100644 index 45c5e171e..000000000 --- a/newlib/libc/machine/i960/strncat_ca.S +++ /dev/null @@ -1,300 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "sncat_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strncat (optimized assembler version for the CA) - - dest_addr = strncat (dest_addr, src_addr, max_bytes) - - append the null terminated string pointed to by src_addr to the null - terminated string pointed to by dest_addr. Return the original - dest_addr. If the source string is longer than max_bytes, then - append only max_bytes bytes, and tack on a null byte on the end - - This routine will fail if the source and destination string - overlap (in particular, if the end of the source is overlapped - by the beginning of the destination). The behavior is undefined. - This is acceptable according to the draft C standard. - - Undefined behavior will also occur if the end of the source string - (i.e. the terminating null byte) is in the last word of the program's - allocated memory space. This is so because, in several cases, strncat - will fetch ahead one word. Disallowing the fetch ahead would impose - a severe performance penalty. - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source is word aligned, destination is not - 4) destination is word aligned, source is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. The registers are used as follows: - - g0 original dest ptr; not modified, so that it may be returned. - g1 src ptr; shift count - g2 max_bytes - g3 src ptr (word aligned) - g4 dest ptr (word aligned) - g5 0xff -- byte extraction mask - Little endian: - g6 lsw of double word for extraction of 4 bytes - g7 msw of double word for extraction of 4 bytes - Big endian: - g6 msw of double word for extraction of 4 bytes - g7 lsw of double word for extraction of 4 bytes - g13 return address - g14 byte extracted. -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g6 -#define LSW g7 -#else -#define LSW g6 -#define MSW g7 -#endif - - .globl _strncat - .globl __strncat - .leafproc _strncat, __strncat - .align 2 -_strncat: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strncat: - notand g0,3,g4 # extract word addr of start of dest - lda (g14),g13 # preserve return address - cmpibge.f 0,g2,Lexit_code # Lexit if number of bytes to move is <= zero. - and g0,3,LSW # extract byte offset of dest - ld (g4),MSW # fetch word containing at least first byte - shlo 3,LSW,g14 # get shift count for making mask for first word - subi 1,0,LSW # mask initially all ones -#if __i960_BIG_ENDIAN__ - shro g14,LSW,LSW # get mask for bytes needed from first word -#else - shlo g14,LSW,LSW # get mask for bytes needed from first word -#endif - notor MSW,LSW,MSW # set unneeded bytes to all ones - lda 0xff,g5 # byte extraction mask -Lsearch_for_word_with_null: - scanbyte 0,MSW # check for null byte - lda 4(g4),g4 # post-increment dest word pointer - mov MSW,LSW # keep a copy of current word - ld (g4),MSW # fetch next word of dest - bno.t Lsearch_for_word_with_null # branch if null not found yet -#if __i960_BIG_ENDIAN__ - shro 24,LSW,g14 # extract byte -#else - and g5,LSW,g14 # extract byte -#endif - cmpo 0,g14 # branch if null is first byte of word - subo 4,g4,g4 # move dest word ptr to word with null - notand g1,3,g3 # extract word addr of start of src - bne.t Lsearch_for_null - -Lcase_14: - cmpo g1,g3 # check alignment of source - ld (g3),LSW # fetch first word of source - shlo 3,g1,g14 # compute shift count - lda 4(g3),g3 # post-increment src addr - bne.f Lcase_4 # branch if source is unaligned -Lcase_1: -Lcase_1_wloop: # word copying loop - cmpi g2,4 # check for fewer than four bytes to move - lda (LSW),g1 # keep a copy of the src word - bl.f Lcase_1_cloop # branch if fewer than four bytes to copy - scanbyte 0,g1 # check for null byte in src word - ld (g3),LSW # pre-fetch next word of src - addo 4,g3,g3 # post-increment src addr - bo.f Lcase_1_cloop # branch if word contains null byte - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - st g1,(g4) # store word in dest string - addo 4,g4,g4 # post-increment dest addr - b Lcase_1_wloop - -Lcase_3_cloop: -Lcase_1_cloop: # character copying loop (max_bytes <= 3) - cmpdeci 0,g2,g2 # is max_bytes exhausted? -#if __i960_BIG_ENDIAN__ - rotate 8,g1,g1 # move next byte into position for extraction -#endif - and g5,g1,g14 # extract next char - be.f Lstore_null # if max_bytes is exhausted, store null and quit - cmpo 0,g14 # check for null byte - stob g14,(g4) # store the byte in dest -#if ! __i960_BIG_ENDIAN__ - shro 8,g1,g1 # move next byte into position for extraction -#endif - lda 1(g4),g4 # post-increment dest byte addr - bne.t Lcase_1_cloop # branch if null not reached - bx (g13) # Lexit (g14 == 0) - -Lstore_null: - mov 0,g14 # store null, and set g14 to zero - stob g14,(g4) - bx (g13) - - -Lsearch_for_null: -#if __i960_BIG_ENDIAN__ - shlo 8,LSW,LSW # check next byte - shro 24,LSW,g14 -#else - shlo 8,g5,g5 # move mask up to next byte - and g5,LSW,g14 # extract byte -#endif - lda 1(g4),g4 # move dest byte ptr to next byte - cmpobne.t 0,g14,Lsearch_for_null # branch if null is not yet found - -Lcase_235: - cmpo g1,g3 # check alignment of src - ld (g3),LSW # pre-fetch word with start of src - and 3,g1,g1 # compute shift count - lda 0xff,g5 # load mask for byte extraction - shlo 3,g1,g14 - lda 4(g3),g3 # post-increment src word counter - be.t Lcase_3 # branch if src is word aligned - and g4,3,MSW # extract byte offset for dest string - cmpo MSW,g1 # < indicates first word of dest has more bytes - /* than first word of source. */ - ld (g3),MSW # fetch second word of src -#if __i960_BIG_ENDIAN__ - subo g14,0,g14 # adjust shift count for big endian -#endif - eshro g14,g6,g5 # extract four bytes -#if __i960_BIG_ENDIAN__ - bge.f 1f -#else - bg.f 1f -#endif - mov MSW,LSW - lda 4(g3),g3 # move src word addr to second word boundary -1: - mov g5,MSW - lda 0xff,g5 - b Lcase_25 - -Lcase_3: # src is word aligned; dest is not - mov LSW,MSW # make copy of first word of src - lda 32,g14 # initialize shift count to zero (mod 32) -Lcase_25: - -Lcase_3_cloop_at_start: # character copying loop for start of dest str - cmpdeci 0,g2,g2 # is max_bytes exhausted? -#if __i960_BIG_ENDIAN__ - shro 24,MSW,g5 # extract next char -#else - and g5,MSW,g5 # extract next char -#endif - be.f Lstore_null # Lexit if max_bytes is exhausted - cmpo 0,g5 # check for null byte - stob g5,(g4) # store the byte in dest - addo 1,g4,g4 # post-increment dest ptr - lda 0xff,g5 # re-initialize byte extraction mask - notand g4,3,g1 # extract word address - be.t Lexit_code # Lexit if null byte reached - cmpo g1,g4 # have we reached word boundary in dest yet? -#if __i960_BIG_ENDIAN__ - lda -8(g14),g14 # augment the shift counter - rotate 8,MSW,MSW # move next byte into position for extraction -#else - lda 8(g14),g14 # augment the shift counter - shro 8,MSW,MSW # move next byte into position for extraction -#endif - bne.t Lcase_3_cloop_at_start # branch if reached word boundary? - -#if __i960_BIG_ENDIAN__ - cmpo 0,g14 - ld (g3),MSW # fetch msw of operand for double shift - bne Lcase_3_wloop # branch if src is still unaligned. - -Lcase_3_wloop2: - cmpi g2,4 # less than four bytes to move? - mov LSW,g1 # extract 4 bytes of src - lda 4(g3),g3 # post-increment src word addr - bl.f Lcase_3_cloop # branch if < four bytes left to move - scanbyte 0,g1 # check for null byte - mov MSW,LSW # move msw to lsw - ld (g3),MSW # pre-fetch msw of operand for double shift - bo.f Lcase_3_cloop # branch if word contains null byte - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - st g1,(g4) # store 4 bytes to dest - addo 4,g4,g4 # post-increment dest ptr - b Lcase_3_wloop2 -Lcase_4: - subo g14,0,g14 # adjust shift count for big endian -#else -Lcase_4: -#endif - - ld (g3),MSW # fetch msw of operand for double shift - -Lcase_3_wloop: - cmpi g2,4 # less than four bytes to move? - eshro g14,g6,g1 # extract 4 bytes of src - lda 4(g3),g3 # post-increment src word addr - bl.f Lcase_3_cloop # branch if < four bytes left to move - scanbyte 0,g1 # check for null byte - mov MSW,LSW # move msw to lsw - ld (g3),MSW # pre-fetch msw of operand for double shift - bo.f Lcase_3_cloop # branch if word contains null byte - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - st g1,(g4) # store 4 bytes to dest - addo 4,g4,g4 # post-increment dest ptr - b Lcase_3_wloop - - -Lexit_code: - mov 0,g14 # conform to register conventions - bx (g13) # g0 = addr of dest; g14 = 0 -Lrett: - ret - -/* end of strncat */ - diff --git a/newlib/libc/machine/i960/strncmp.S b/newlib/libc/machine/i960/strncmp.S deleted file mode 100644 index 030b75084..000000000 --- a/newlib/libc/machine/i960/strncmp.S +++ /dev/null @@ -1,129 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strncmp.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ -/* - procedure strncmp (optimized assembler version for the 80960K Series) - - result = strncmp (src1_addr, src2_addr, max_bytes) - - compare the null terminated string pointed to by src1_addr to - the string pointed to by src2_addr. Return 0 iff the strings - are equal, -1 if src1_addr is lexicographically less than src2_addr, - and 1 if it is lexicographically greater. Do not compare more than - max_bytes bytes. - - Undefined behavior will occur if the end of either source string - (i.e. the terminating null byte) is in the last two words of the - program's allocated memory space. This is so because strncmp - will fetch ahead. Disallowing the fetch ahead would impose - a severe performance penalty. - - Strategy: - - Fetch and compare the strings by words and go to a character - comparison loop as soon as a pair of words differ. If the - words are equal up through either the exhaustion of max_bytes - or the presence of the null byte, return 0 (equality). Otherwise, - the character comparator will return -1 or 1 for inequality, or - 0 if the differing byte is after the null byte or after the - exhaustion of max_bytes. - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble and convoluted body that would be necessary to assure - alignment. -*/ - - .globl _strncmp - .globl __strncmp - .leafproc _strncmp,__strncmp - .align 2 - -_strncmp: -#ifndef __PIC - lda .Lrett,g14 -#else - lda .Lrett-(.+8)(ip),g14 -#endif -__strncmp: - mov g14,g13 - ldconst 0,g14 - cmpibge 0,g2,Lequal_exit # Lexit early if max_bytes <= 0 - addo g2,g0,g2 -.Lwloop: - cmpo g0,g2 # are max_bytes exhausted? - ld (g0), g5 # fetch word of source_1 - bge Lequal_exit # Lexit (equality) if max_bytes exhausted - ld (g1), g3 # fetch word of source_2 - addo 4,g0,g0 # post-increment source_1 ptr - scanbyte 0,g5 # is a null byte present? - addo 4,g1,g1 # post-increment source_1 ptr - be .Lcloop.a # perform char comparator if null byte found - cmpobe g5,g3,.Lwloop # perform char comparator if words are unequal - -.Lcloop.a: subo 4,g0,g0 # adjust max_byte counter - ldconst 0xff,g4 # byte extraction mask - -.Lcloop: and g4,g5,g7 # compare individual bytes - and g4,g3,g6 - cmpobne g7,g6,.diff # if different, return -1 or 1 - cmpo 0,g6 # they are equal. are they null? - shlo 8,g4,g4 # position mask to extract next byte - be Lequal_exit # if they are null, Lexit (equality) - addo 1,g0,g0 # is max_bytes exhausted? - cmpobl g0,g2,.Lcloop # if not, loop. if so, Lexit (equality) - -Lequal_exit: - mov 0,g0 - bx (g13) -.Lrett: - ret -.diff: bl .neg - mov 1,g0 - bx (g13) - -.neg: subi 1,0,g0 -.Lexit: - bx (g13) - -/* end of strncmp */ diff --git a/newlib/libc/machine/i960/strncmp_ca.S b/newlib/libc/machine/i960/strncmp_ca.S deleted file mode 100644 index 0b1a8ff4b..000000000 --- a/newlib/libc/machine/i960/strncmp_ca.S +++ /dev/null @@ -1,253 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "sncmp_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strncmp (optimized assembler version for the CA) - - result = strncmp (src1_addr, src2_addr, max_bytes) - - compare the null terminated string pointed to by src1_addr to - the string space pointed to by src2_addr. Return 0 iff the strings - are equal, -1 if src1_addr is lexicly less than src2_addr, and 1 - if it is lexicly greater. Do not compare more than max_bytes bytes. - - Undefined behavior will occur if the end of either source string - (i.e. the terminating null byte) is in the last word of the program's - allocated memory space. This is so because, in several cases, strncmp - will fetch ahead one word. Disallowing the fetch ahead would impose - a severe performance penalty. - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source1 is word aligned, source2 is not - 4) source2 is word aligned, source1 is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g14 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers are sufficient to implement the routine. - The registers are used as follows: - - g0 original src1 ptr; extracted word; return result - g1 src2 ptr; 0xff -- byte extraction mask - g2 maximum number of bytes to compare - g3 src2 word ptr - Little endian: - g4 lsw of src1 - g5 msw of src1 - g6 src2 word - g7 src1 word ptr - Big endian: - g4 msw of src1 - g5 lsw of src1 - g6 src1 word ptr - g7 src2 word - g13 return address - g14 shift count -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g4 -#define LSW g5 -#define SRC1 g6 -#define SRC2 g7 -#else -#define LSW g4 -#define MSW g5 -#define SRC2 g6 -#define SRC1 g7 -#endif - - .globl _strncmp - .globl __strncmp - .leafproc _strncmp, __strncmp - .align 2 -_strncmp: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strncmp: -Lrestart: - notand g0,3,SRC1 # extract word addr of start of src1 - lda (g14),g13 # preserve return address - cmpibge.f 0,g2,Lequal_exit # return equality if number of bytes to - /* compare is none. */ -#if __i960_BIG_ENDIAN__ - cmpo g0,SRC1 # check alignment of src1 -#endif - ld (SRC1),LSW # fetch word with at least first byte of src1 - notand g1,3,g3 # extract word addr of start of src2 - ld 4(SRC1),MSW # fetch second word of src1 -#if __i960_BIG_ENDIAN__ - bne Lsrc1_unaligned # branch if src1 is unaligned - cmpo g3,g1 # check alignment of src2 - ld (g3),SRC2 # fetch word with at least first byte of src2 - shlo 3,g0,g14 # compute shift count for src1 - subo g14,0,g14 # adjust shift count for big endian - lda 8(SRC1),SRC1 # advance src1 word addr - bne.f Lsrc2_unaligned # branch if src2 is NOT word aligned - - /* src2 is word aligned */ - - mov LSW,g0 - -Lwloop2: # word comparing loop - cmpo SRC2,g0 # compare src1 and src2 words - lda 0xff000000,g1 # byte extraction mask - mov MSW,LSW # move msw of src1 to lsw - ld (SRC1),MSW # pre-fetch next msw of src1 - addo 4,SRC1,SRC1 # post-increment src1 addr - lda 4(g3),g3 # pre-increment src2 addr - bne.f Lcloop # branch if src1 and src2 unequal - scanbyte 0,g0 # check for null byte in src1 word - ld (g3),SRC2 # pre-fetch next word of src2 - mov LSW,g0 # extract word of src1 - subi 4,g2,g2 # decrement maximum byte count - bo.f Lequal_exit # branch if null byte encountered - cmpibl.t 0,g2,Lwloop2 # branch if max_bytes not reached yet - - b Lequal_exit # strings were equal up through max_bytes - -Lsrc1_unaligned: -#endif - cmpo g3,g1 # check alignment of src2 - ld (g3),SRC2 # fetch word with at least first byte of src2 - shlo 3,g0,g14 # compute shift count for src1 -#if __i960_BIG_ENDIAN__ - subo g14,0,g14 # adjust shift count for big endian -#endif - eshro g14,g4,LSW # extract word of src1 - lda 8(SRC1),SRC1 # advance src1 word addr - bne.f Lsrc2_unaligned # branch if src2 is NOT word aligned - - /* at least src2 is word aligned */ - - mov LSW,g0 - -Lwloop: # word comparing loop - cmpo SRC2,g0 # compare src1 and src2 words -#if __i960_BIG_ENDIAN__ - lda 0xff000000,g1 # byte extraction mask -#else - lda 0xff,g1 # byte extraction mask -#endif - mov MSW,LSW # move msw of src1 to lsw - ld (SRC1),MSW # pre-fetch next msw of src1 - addo 4,SRC1,SRC1 # post-increment src1 addr - lda 4(g3),g3 # pre-increment src2 addr - bne.f Lcloop # branch if src1 and src2 unequal - scanbyte 0,g0 # check for null byte in src1 word - ld (g3),SRC2 # pre-fetch next word of src2 - eshro g14,g4,g0 # extract word of src1 - subi 4,g2,g2 # decrement maximum byte count - bo.f Lequal_exit # branch if null byte encountered - cmpibl.t 0,g2,Lwloop # branch if max_bytes not reached yet - - b Lequal_exit # strings were equal up through max_bytes - -Lcloop_setup: # setup for coming from Lsrc2_unaligned - mov LSW,g0 # restore extracted src1 word -#if __i960_BIG_ENDIAN__ - lda 0xff000000,g1 # byte extraction mask -#else - lda 0xff,g1 # byte extraction mask -#endif - -Lcloop: # character comparing loop - and SRC2,g1,g3 # extract next char of src2 - and g0,g1,LSW # extract next char of src1 - cmpobne.f LSW,g3,.diff # check for equality - cmpo 0,LSW # check for null byte -#if __i960_BIG_ENDIAN__ - shro 8,g1,g1 # shift mask for next byte -#else - shlo 8,g1,g1 # shift mask for next byte -#endif - subi 1,g2,g2 # decrement character counter - bne.t Lcloop # branch if null not reached - - /* words are equal up thru null byte */ - -Lequal_exit: - mov 0,g14 # conform to register conventions - lda 0,g0 # return zero, indicating equality - bx (g13) # return - -Lrett: - ret - -.diff: - mov 0,g14 - bl Lless_than_exit -Lgreater_than_exit: - cmpibge.f 0,g2,Lequal_exit # branch if difference is beyond max_bytes - mov 1,g0 - bx (g13) # g0 = 1 (src1 > src2) -Lless_than_exit: - cmpibge.f 0,g2,Lequal_exit # branch if difference is beyond max_bytes - subi 1,0,g0 - bx (g13) # g0 = -1 (src1 < src2) - -Lsrc2_unaligned: - notor g1,3,g14 # first step in computing new src1 ptr - ld 4(g3),SRC1 # fetch second word of src2 - shlo 3,g1,MSW # compute shift count for src2 -#if __i960_BIG_ENDIAN__ - subo MSW,0,MSW # adjust shift count for big endian -#endif - eshro MSW,g6,SRC2 # extract word of src2 - cmpo LSW,SRC2 # compare src1 and src2 words - lda 4(g3),g1 # set new src2 ptr - bne.f Lcloop_setup # first four bytes differ - scanbyte 0,LSW # check for null byte - subo g14,g0,g0 # second (final) step in computing new src1 ptr - addi g14,g2,g2 # compute new max_bytes too - lda (g13),g14 # prepare return pointer for Lrestart - bno.t Lrestart # if null byte not encountered, continue - /* with both string fetches shifted such that*/ - /* src2 is now word aligned.*/ - mov 0,g14 # conform to register conventions. - lda 0,g0 # return indicator of equality. - bx (g13) diff --git a/newlib/libc/machine/i960/strncpy.S b/newlib/libc/machine/i960/strncpy.S deleted file mode 100644 index 9f51b607c..000000000 --- a/newlib/libc/machine/i960/strncpy.S +++ /dev/null @@ -1,154 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strncpy.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ -/* - procedure strncpy (optimized assembler version for the 80960K Series) - - dest_addr = strncpy (dest_addr, src_addr, max_bytes) - - copy the null terminated string pointed to by src_addr to the - string pointed to by dest_addr. Return the original dest_addr. - If the source string is shorter than max_bytes, then null-pad - the destination string. If it is longer than max_bytes, the - copy stops at max_bytes bytes (and no terminating null appears - in the destination string). - - This routine will fail if the source and destination string - overlap (in particular, if the end of the source is overlapped - by the beginning of the destination). The behavior is undefined. - This is acceptable according to the draft C standard. - - Undefined behavior will also occur if the end of the source string - (i.e. the terminating null byte) is in the last two words of the - program's allocated memory space. This is so because strncpy fetches - ahead. Disallowing the fetch ahead would impose a severe performance - penalty. - - Strategy: - - Fetch and store the strings by words and go to a character move loop - as soon as a null byte is encountered. If max_bytes is exhausted - first, then terminate after moving only max_bytes (with the last - 0, 1, 2, or 3 bytes moved as single bytes, not as a word). - Otherwise, the character move loop moves the last bytes or the - source string, and then null-pads the destination string until - max_bytes is exhausted. - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble and convoluted body that would be necessary to assure - alignment. - - 2) When the null byte is encountered in a source word, null out the - higher-numbered bytes in that word, store the word in the destination, - and go to the word null-padder, which may eventually go to the byte - null-padder. -*/ - - .globl _strncpy - .globl __strncpy - .leafproc _strncpy,__strncpy - .align 2 -_strncpy: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strncpy: - mov g14, g13 - cmpibge 0,g2,Lexit # quit early if max_bytes <= 0 - ld (g1), g7 # fetch the first word of the source - mov g0, g5 - lda 0xff, g3 # byte extraction mask - addo g1, g2, g6 - addo g2, g5, g2 -Lwloop: # word copying loop - addo 4, g1, g1 # post-increment source ptr - cmpo g6, g1 # max_bytes < 4 ? - mov g7, g4 # keep a copy of source word - bl Lcloop.a # if less than four bytes to go, go to char loop - scanbyte 0, g4 # null byte found? - ld (g1), g7 # pre-fetch next word of the source - be Lcloop.c # go to char loop if null encountered - st g4, (g5) # store current word - addo 4, g5, g5 # post-increment destination ptr - b Lwloop - -Lcloop.a: # character copying loop (max_bytes < 3) - and g3, g4, g14 # extract byte -Lcloop.b: - cmpo g2, g5 # max_bytes <= 0 ? - shro 8, g4, g4 # position word to extract next byte - be Lexit # exit if max_bytes exhausted - cmpo 0, g14 # is it null? - stob g14, (g5) # store it - addo 1, g5, g5 # post-increment dest ptr - bne Lcloop.a # branch if we are NOT null padding - b Lcloop.b # branch if we are null padding - -Lexit: - mov 0, g14 - bx (g13) # g0 = dest string address; g14 = 0 -Lrett: - ret - -Lcloop.c: # character copying loop - and g3, g4, g14 # extract byte - cmpo 0, g14 # is it null? - mov g3, g7 # save mask - shlo 8, g3, g3 # shift mask to next byte position - bne Lcloop.c # loop until null found - subo 1, g7, g3 # mask to null pad after null byte - and g3, g4, g4 # null-out stuff after null byte - st g4, (g5) # store last part of src and first of null-pad - subo 8,g2,g6 # adjust max_byte counter - -Lzwloop: - cmpo g5, g6 # max_bytes < 4 ? - addo 4, g5, g5 - bg Lcloop.b # if so, goto character loop - st g14, (g5) # store four null bytes - b Lzwloop - -/* end of strncpy */ diff --git a/newlib/libc/machine/i960/strncpy_ca.S b/newlib/libc/machine/i960/strncpy_ca.S deleted file mode 100644 index 1f90acf1c..000000000 --- a/newlib/libc/machine/i960/strncpy_ca.S +++ /dev/null @@ -1,289 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "sncpy_ca.s" -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strncpy (optimized assembler version for the CA) - - dest_addr = strncpy (dest_addr, src_addr, max_bytes) - - copy the null terminated string pointed to by src_addr to - the string space pointed to by dest_addr. Return the original - dest_addr. If the source string is shorter than max_bytes, - then null-pad the destination string. - - This routine will fail if the source and destination string - overlap (in particular, if the end of the source is overlapped - by the beginning of the destination). The behavior is undefined. - This is acceptable according to the draft C standard. - - Undefined behavior will also occur if the end of the source string - (i.e. the terminating null byte) is in the last word of the program's - allocated memory space. This is so because, in several cases, strcpy - will fetch ahead one word. Disallowing the fetch ahead would impose - a severe performance penalty. - - This program handles five cases: - - 1) both arguments start on a word boundary - 2) neither are word aligned, but they are offset by the same amount - 3) source is word aligned, destination is not - 4) destination is word aligned, source is not - 5) neither is word aligned, and they are offset by differing amounts - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. The registers are used as follows: - - g0 original dest ptr; not modified, so that it may be returned. - g1 src ptr; shift count - g2 max_bytes - g3 src ptr (word aligned) - g4 dest ptr (word aligned) - g5 0xff -- byte extraction mask - Little endian: - g6 lsw of double word for extraction of 4 bytes - g7 msw of double word for extraction of 4 bytes - Big endian: - g6 msw of double word for extraction of 4 bytes - g7 lsw of double word for extraction of 4 bytes - g13 return address - g14 byte extracted. -*/ - -#if __i960_BIG_ENDIAN__ -#define MSW g6 -#define LSW g7 -#else -#define LSW g6 -#define MSW g7 -#endif - - .globl _strncpy - .globl __strncpy - .leafproc _strncpy, __strncpy - .align 2 -_strncpy: -#ifndef __PIC - lda Lrett,g14 -#else - lda Lrett-(.+8)(ip),g14 -#endif -__strncpy: - notand g1,3,g3 # extract word addr of start of src - lda (g14),g13 # preserve return address - cmpibge.f 0,g2,Lexit_code # Lexit if number of bytes to move is <= zero. - cmpo g3,g1 # check alignment of src - ld (g3),LSW # fetch word containing at least first byte - notand g0,3,g4 # extract word addr of start of dest - lda 4(g3),g3 # advance src word addr - bne.f Lcase_245 # branch if src is NOT word aligned - -Lcase_13: - cmpo g0,g4 # check alignment of dest - lda 0xff,g5 # load mask for byte extraction - subo 4,g4,g4 # store is pre-incrementing; back up dest addr - bne.f Lcase_3 # branch if dest not word aligned - -Lcase_1: # src and dest are word aligned -Lcase_1_wloop: # word copying loop - cmpi g2,4 # check for fewer than four bytes to move - lda (LSW),g1 # keep a copy of the src word - addo 4,g4,g4 # pre-increment dest addr - bl.f Lcase_1_cloop.a # branch if fewer than four bytes to copy - scanbyte 0,g1 # check for null byte in src word - ld (g3),LSW # pre-fetch next word of src - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - bo.f Lcase_1_cloop.c # branch if word contains null byte - addo 4,g3,g3 # post-increment src addr - st g1,(g4) # store word in dest string - b Lcase_1_wloop - -Lcase_3_cloop.a: -Lcase_1_cloop.a: # character copying loop (max_bytes <= 3) -#if __i960_BIG_ENDIAN__ - rotate 8,g1,g1 # move next byte into position for extraction -#endif - and g5,g1,g14 # extract next char -Lcase_1_cloop.b: - cmpdeci 0,g2,g2 # is max_bytes exhausted? - be.f Lexit_code # Lexit if max_bytes is exhausted - cmpo 0,g14 # check for null byte - stob g14,(g4) # store the byte in dest -#if ! __i960_BIG_ENDIAN__ - shro 8,g1,g1 # move next byte into position for extraction -#endif - lda 1(g4),g4 # post-increment dest byte addr - bne.t Lcase_1_cloop.a # branch if null not reached - b Lcase_1_cloop.b - -Lexit_code: - mov 0,g14 # conform to register conventions - bx (g13) # g0 = addr of dest; g14 = 0 -Lrett: - ret - -Lcase_1_cloop.c: -Lcase_3_cloop.c: -#if __i960_BIG_ENDIAN__ - rotate 24,g5,g5 # move mask into position for testing next byte -#endif - and g5,g1,g14 # extract next char - cmpo 0,g14 # check for null byte -#if ! __i960_BIG_ENDIAN__ - lda (g5),LSW # keep a copy of the current mask - shlo 8,g5,g5 # move mask into position for testing next byte -#endif - bne.t Lcase_1_cloop.c # branch if null not reached -#if __i960_BIG_ENDIAN__ - subo 1,g5,g5 # null pad. - andnot g5,g1,g1 # last bytes to copy, and null pad rest of word -#else - subo 1,LSW,g5 # mask to get last bytes to copy, and null pad - and g5,g1,g1 # last bytes to copy, and null pad rest of word -#endif - st g1,(g4) - -Lcase_1_zwloop: # zero word loop - cmpi g2,4 # check for fewer than four bytes to move - addo 4,g4,g4 # pre-increment dest addr - bl.f Lcase_1_cloop.b # branch if fewer than four bytes to copy - subo 4,g2,g2 # decrease max_byte count by the 4 bytes moved - st g14,(g4) # store word in dest string - b Lcase_1_zwloop - -Lcase_3: # src is word aligned; dest is not - addo 8,g4,g4 # move dest word ptr to first word boundary - lda (g0),g1 # copy dest byte ptr - mov LSW,MSW # make copy of first word of src - lda 32,g14 # initialize shift count to zero (mod 32) - -Lcase_25: -Lcase_3_cloop_at_start: # character copying loop for start of dest str - cmpdeci 0,g2,g2 # is max_bytes exhausted? -#if __i960_BIG_ENDIAN__ - shro 24,MSW,g5 # extract next char -#else - and g5,MSW,g5 # extract next char -#endif - be.f Lexit_code # Lexit if max_bytes is exhausted - cmpo 0,g5 # check for null byte - stob g5,(g1) # store the byte in dest - addo 1,g1,g1 # post-increment dest ptr - lda 0xff,g5 # re-initialize byte extraction mask - bne.t 1f # drop thru if null byte reached (to pad) - movl 0,g6 # blank out remainder of input buffer -1: - cmpo g1,g4 # have we reached word boundary in dest yet? -#if __i960_BIG_ENDIAN__ - lda -8(g14),g14 # augment the shift counter - rotate 8,MSW,MSW # move next byte into position for extraction -#else - lda 8(g14),g14 # augment the shift counter - shro 8,MSW,MSW # move next byte into position for extraction -#endif - bne.t Lcase_3_cloop_at_start # branch if reached word boundary? - - ld (g3),MSW # fetch msw of operand for double shift - -Lcase_4: - -#if __i960_BIG_ENDIAN__ - cmpobne 0,g14,Lcase_3_wloop # branch if src is still unaligned. - -Lcase_3_wloop2: - cmpi g2,4 # less than four bytes to move? - lda (LSW),g1 # extract 4 bytes of src - lda 4(g3),g3 # post-increment src word addr - bl.f Lcase_3_cloop.a # branch if < four bytes left to move - scanbyte 0,g1 # check for null byte - lda (MSW),LSW # move msw to lsw - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - ld (g3),MSW # pre-fetch msw of operand for double shift - bo.f Lcase_3_cloop.c # branch if word contains null byte - st g1,(g4) # store 4 bytes to dest - addo 4,g4,g4 # post-increment dest ptr - b Lcase_3_wloop2 - -#endif - -Lcase_3_wloop: - cmpi g2,4 # less than four bytes to move? - eshro g14,g6,g1 # extract 4 bytes of src - lda 4(g3),g3 # post-increment src word addr - bl.f Lcase_3_cloop.a # branch if < four bytes left to move - scanbyte 0,g1 # check for null byte - lda (MSW),LSW # move msw to lsw - subi 4,g2,g2 # decrease max_byte count by the 4 bytes moved - ld (g3),MSW # pre-fetch msw of operand for double shift - bo.f Lcase_3_cloop.c # branch if word contains null byte - st g1,(g4) # store 4 bytes to dest - addo 4,g4,g4 # post-increment dest ptr - b Lcase_3_wloop - -Lcase_245: - cmpo g0,g4 # check alignment of dest - ld (g3),MSW # pre-fetch second half - and 3,g1,g1 # compute shift count - lda 0xff,g5 # load mask for byte extraction -#if __i960_BIG_ENDIAN__ - subo g1,4,g14 # adjust shift count for big endian. - shlo 3,g14,g14 -#else - shlo 3,g1,g14 -#endif - be.t Lcase_4 # branch if dest is word aligned - or g4,g1,g1 # is src earlier in word, later, or sync w/ dst - cmpo g0,g1 # < indicates first word of dest has more bytes - /* than first word of source. */ - lda 4(g4),g4 # move dest word addr to first word boundary - eshro g14,g6,g5 # extract four bytes - lda (g0),g1 - bg.f 1f - mov MSW,LSW - lda 4(g3),g3 # move src word addr to second word boundary -1: - mov g5,MSW - lda 0xff,g5 - b Lcase_25 - -/* end of strncpy */ - diff --git a/newlib/libc/machine/i960/strpbrk.S b/newlib/libc/machine/i960/strpbrk.S deleted file mode 100644 index bae909f20..000000000 --- a/newlib/libc/machine/i960/strpbrk.S +++ /dev/null @@ -1,100 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - -/* - * (c) copyright 1989,1993 Intel Corp., all rights reserved - */ - -/* - procedure strpbrk (optimized assembler version: 80960K series, 80960CA) - - char_addr = strpbrk (string, brkset_string) - - Return the address of the first character in string that is NOT - in the brkset_string. Return NULL if none exists. - - At the time of this writing, only g0 thru g7 and g13 are available - for use in this leafproc; other registers would have to be saved and - restored. These nine registers, plus tricky use of g14 are sufficient - to implement the routine. - - This routine stays out of g3 and g4 altogether. They may be used by - the strtok routine, which calls this routine in an incestuous way. -*/ -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif - - .file "strprk.s" - .globl _strpbrk - .globl __strpbrk - .leafproc _strpbrk, __strpbrk - .align 2 - -_strpbrk: -#ifdef __PIC - lda Lrett-(.+8)(ip),g14 - b __strpbrk -#else - lda Lrett,g14 - b __strpbrk -#endif - -Lrett: ret - -__strpbrk: - -Lnext_char_strpbrk: - addo 1,g1,g2 # g2 will be the brkset ptr - ldob (g0),g7 # fetch next character of string - ldob (g1),g6 # fetch first character of brkset - cmpobe.f 0,g7,Lexit_char_not_found # quit if at end of string -Lscan_set_strpbrk: - cmpo g6,g7 # is brkset char equal to string char? - ldob (g2),g5 # fetch next brkset char - addo 1,g2,g2 # bump brkset ptr - be.f Lexit_char_found - cmpo g6,0 # is brkset_string exhausted? - lda (g5),g6 - bne.t Lscan_set_strpbrk # check next character of brkset - addo 1,g0,g0 # check next character of string - b Lnext_char_strpbrk - -Lexit_char_not_found: - mov 0,g0 # return null if brkset char not found in string -Lexit_char_found: - mov g14,g13 # save return address - lda 0,g14 # conform to register conventions - bx (g13) - -/* end of strpbrk */ diff --git a/newlib/libc/machine/i960/strrchr.S b/newlib/libc/machine/i960/strrchr.S deleted file mode 100644 index 96fe5c269..000000000 --- a/newlib/libc/machine/i960/strrchr.S +++ /dev/null @@ -1,137 +0,0 @@ -/******************************************************************************* - * - * Copyright (c) 1993 Intel Corporation - * - * Intel hereby grants you permission to copy, modify, and distribute this - * software and its documentation. Intel grants this permission provided - * that the above copyright notice appears in all copies and that both the - * copyright notice and this permission notice appear in supporting - * documentation. In addition, Intel grants this permission provided that - * you prominently mark as "not part of the original" any modifications - * made to this software or documentation, and that the name of Intel - * Corporation not be used in advertising or publicity pertaining to - * distribution of the software or the documentation without specific, - * written prior permission. - * - * Intel Corporation provides this AS IS, WITHOUT ANY WARRANTY, EXPRESS OR - * IMPLIED, INCLUDING, WITHOUT LIMITATION, ANY WARRANTY OF MERCHANTABILITY - * OR FITNESS FOR A PARTICULAR PURPOSE. Intel makes no guarantee or - * representations regarding the use of, or the results of the use of, - * the software and documentation in terms of correctness, accuracy, - * reliability, currentness, or otherwise; and you rely on the software, - * documentation and results solely at your own risk. - * - * IN NO EVENT SHALL INTEL BE LIABLE FOR ANY LOSS OF USE, LOSS OF BUSINESS, - * LOSS OF PROFITS, INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES - * OF ANY KIND. IN NO EVENT SHALL INTEL'S TOTAL LIABILITY EXCEED THE SUM - * PAID TO INTEL FOR THE PRODUCT LICENSED HEREUNDER. - * - ******************************************************************************/ - - .file "strrchr.s" -#ifdef __i960_BIG_ENDIAN__ -#error "This does not work in big-endian" -#endif - -#ifdef __PIC - .pic -#endif -#ifdef __PID - .pid -#endif - -/* - * (c) copyright 1988,1993 Intel Corp., all rights reserved - */ - -/* - procedure strrchr (optimized assembler version for the 80960K series) - - src_addr = strrchr (src_addr, char) - - return a pointer to the last byte that contains the indicated - byte in the source string. Return null if the byte is not found. - - Undefined behavior will occur if the end of the source string (i.e. - the terminating null byte) is in the last two words of the program's - allocated memory space. This is so because strrchr fetches ahead. - Disallowing the fetch ahead would impose a severe performance penalty. - - Strategy: - - Fetch the source string by words and scanbyte the words for the - char until either a word with the byte is found or the null byte is - encountered. In the former case, move through the word to find the - matching byte and save its memory address, then continue the search. - In the latter case, return the saved address, or zero (null) if none - was ever found to save. - - Tactics: - - 1) Do NOT try to fetch the words in a word aligned manner because, - in my judgement, the performance degradation experienced due to - non-aligned accesses does NOT outweigh the time and complexity added - by the preamble that would be necessary to assure alignment. This - is supported by the intuition that most source arrays (even more - true of most big source arrays) will be word aligned to begin with. -*/ - - .globl _strrchr - .globl __strrchr - .leafproc _strrchr, __strrchr - .align 2 -_strrchr: -#ifdef __PIC - lda Lrett-(.+8)(ip),g14 -#else - lda Lrett,g14 -#endif -__strrchr: - - ld (g0),g4 # fetch first word - lda 0xff,g7 # byte extraction mask - and g1,g7,g1 # make char an 8-bit ordinal - shlo 8,g1,g2 # broadcast the char to four bytes - or g1,g2,g2 - shlo 16,g2,g5 - or g2,g5,g3 - mov g14,g13 # preserve return address - addo 4,g0,g2 # post-increment src pointer - mov 1,g0 # prepare to return null pointer - mov g3,g6 # prepare to return null pointer - -Lsearch_for_word_with_char_or_null: - mov g4,g5 # copy word - scanbyte 0,g5 # check for null byte - ld (g2),g4 # fetch next word of src - bo Lword_has_null # branch if null found - scanbyte g3,g5 # check for byte with char - addo 4,g2,g2 # post-increment src pointer - bno Lsearch_for_word_with_char_or_null # branch if no copy of char - mov g5,g6 # save word that has char in it (at least once) - subo 4,g2,g0 # save addr of byte after word with char - b Lsearch_for_word_with_char_or_null - -Lword_has_null: - subo 4,g2,g2 # move src pointer back to word with null -Lfind_null: - addo 1,g2,g2 # advance src pointer to byte after current - and g7,g5,g14 # extract next byte - cmpo g1,g14 # is current byte char? - shro 8,g5,g5 # position next byte for extraction - bne 1f # skip if not char sought after - mov g2,g0 # save addr of byte after char - mov g3,g6 # save word of all char to short circuit search -1: cmpobne 0,g14,Lfind_null # is current byte null? - -Lfind_last_char: - rotate 8,g6,g6 # position next highest byte - and g7,g6,g5 # extract byte - subo 1,g0,g0 # move pointer to that byte (or nullify) - cmpobne g5,g1,Lfind_last_char # branch if not at char - - bx (g13) # g0 = addr of char in src (or null); g14 = 0 -Lrett: - ret - -/* end of strrchr */ |