Source: http://sourceware.org/ml/libc-alpha/2008-01/msg00017.html

I am checking this x86 assembler patch:

http://sourceware.org/ml/binutils/2008-01/msg00148.html

to check operand size. fnstsw stores 16bit into %ax. The upper
16bit of %eax is unchanged.  The new assembler will disallow
"fnstsw %eax".  Here is a patch for glibc.


H.J.

---
 sysdeps/i386/fpu/ftestexcept.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: glibc-2.6.1/sysdeps/i386/fpu/ftestexcept.c
===================================================================
--- glibc-2.6.1.orig/sysdeps/i386/fpu/ftestexcept.c	2008-07-19 11:00:45.000000000 -0700
+++ glibc-2.6.1/sysdeps/i386/fpu/ftestexcept.c	2008-07-19 11:01:25.000000000 -0700
@@ -26,7 +26,7 @@
 int
 fetestexcept (int excepts)
 {
-  int temp;
+  short temp;
   int xtemp = 0;
 
   /* Get current exceptions.  */