import newlib-2000-02-17 snapshot

1 files changed, 115 insertions, 0 deletions

diff --git a/newlib/libc/sys/sparc64/ieee.c b/newlib/libc/sys/sparc64/ieee.c
new file mode 100644
index 000000000..28289761d
--- /dev/null
+++ b/newlib/libc/sys/sparc64/ieee.c
@@ -0,0 +1,115 @@
+
+#include <ieeefp.h>
+
+
+fp_rnd
+_DEFUN_VOID(fpgetround)
+{
+  char *out;
+  ieee_flags("get", "direction","", &out);
+  if (strcmp(out,"nearest") == 0) return FP_RN;  
+  if (strcmp(out,"negative") == 0) return FP_RM;  
+  if (strcmp(out,"positive") == 0) return FP_RP;  
+  if (strcmp(out,"tozero") == 0) return FP_RZ;  
+  abort();
+  
+}
+
+fp_rnd
+_DEFUN(fpsetround,(new),
+       fp_rnd new)
+{
+  fp_rnd old = fpgetround();
+  char *dummy;
+  
+  switch (new) 
+  {
+  case FP_RN:
+    ieee_flags("set", "direction", "nearest", &dummy);
+    break;
+  case FP_RM:
+    ieee_flags("set", "direction", "negative", &dummy);
+    break;
+  case FP_RP:
+    ieee_flags("set", "direction", "positive", &dummy);
+    break;
+  case FP_RZ:
+    ieee_flags("set", "direction", "tozero", &dummy);
+    break;
+  default:
+    break;
+  }
+  return old;
+}
+
+
+fp_except
+_DEFUN_VOID(fpgetmask)
+{
+  char *out;
+  int r = 0;
+
+  int i = ieee_flags("get","exception","",&out);  
+  if (i & 1) r |= FP_X_IMP;
+  if (i & 2) r |= FP_X_DX;
+  if (i & 4) r |= FP_X_UFL;
+  if (i & 8) r |= FP_X_OFL;
+  if (i & 16) r |= FP_X_INV;
+  return r;
+
+}
+
+fp_except
+_DEFUN(fpsetmask,(mask),
+       fp_except mask)
+{
+  fp_except old = fpgetmask();  
+
+  char *out;
+  ieee_flags("clear","exception", "all", &out);
+
+
+  if (mask & FP_X_IMP) 
+   ieee_flags("set","exception","inexact", &out);
+  if (mask  & FP_X_DX)
+   ieee_flags("set","exception","division", &out);
+  if (mask & FP_X_UFL)
+   ieee_flags("set","exception","underflow", &out);
+  if (mask & FP_X_OFL)
+   ieee_flags("set","exception","overflow", &out);
+  if (mask & FP_X_INV)
+   ieee_flags("set","exception","invalid", &out);
+
+  return old;
+
+}
+
+fp_except 
+_DEFUN(fpsetsticky,(mask),
+       fp_except mask)
+{
+  return fpsetmask(mask);
+}
+
+fp_except
+_DEFUN_VOID(fpgetsticky)
+{
+  return fpgetmask();
+}
+
+int
+_DEFUN(fpsetroundtoi,(rdi_mode),
+       fp_rdi rdi_mode)
+{
+  
+  return 0;
+  
+}
+
+int 
+_DEFUN_VOID(fpgetroundtoi)
+{
+  
+  return 0;
+  
+}