From 8a0efa53e44919bcf5ccb1d3353618a82afdf8bc Mon Sep 17 00:00:00 2001 From: Christopher Faylor Date: Thu, 17 Feb 2000 19:39:52 +0000 Subject: import newlib-2000-02-17 snapshot --- newlib/libc/sys/sysnec810/write.c | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 newlib/libc/sys/sysnec810/write.c (limited to 'newlib/libc/sys/sysnec810/write.c') diff --git a/newlib/libc/sys/sysnec810/write.c b/newlib/libc/sys/sysnec810/write.c new file mode 100644 index 000000000..96c1e49ce --- /dev/null +++ b/newlib/libc/sys/sysnec810/write.c @@ -0,0 +1,36 @@ +static volatile char *data = (char *)(0x20); +static volatile char *control = (char *)(0x24); + +extern void _outb (volatile char*, unsigned char); +extern unsigned char _inb (volatile char*); + +static unsigned char + read_scc_reg (unsigned char n) +{ + _outb (control, n); + return _inb(control); +} + +static void write_scc_data (unsigned char n) +{ + _outb (data, n); +} + +int +_write (int dev, void *buf, unsigned int len) +{ + int i; + char *string = (char*)buf; + + for (i = 0; i < len; i++) + { + int j; + + for (j = 0 ; j < 5000; j++) + ; + write_scc_data (string[i]); + + } + return len; +} + -- cgit v1.2.3