diff options
Diffstat (limited to 'lib/libc/arch/x86_64/gen/fpsetround.S')
| -rw-r--r-- | lib/libc/arch/x86_64/gen/fpsetround.S | 49 |
1 files changed, 0 insertions, 49 deletions
diff --git a/lib/libc/arch/x86_64/gen/fpsetround.S b/lib/libc/arch/x86_64/gen/fpsetround.S deleted file mode 100644 index b8508f8b6bd..00000000000 --- a/lib/libc/arch/x86_64/gen/fpsetround.S +++ /dev/null @@ -1,49 +0,0 @@ -/* $OpenBSD: fpsetround.S,v 1.1 2004/01/28 01:44:45 mickey Exp $ */ -/* $NetBSD: fpsetround.S,v 1.3 2002/06/12 19:17:22 fvdl Exp $ */ - -/* - * Written by Frank van der Linden at Wasabi Systems for NetBSD. - * Public domain. - */ - -#include <machine/asm.h> - -/* - * XXX set both the x87 control word and the SSE mxcsr register. - * Applications should only set exception and round flags - * via the fp*() interface, otherwise the status words - * will get our of sync. - */ - - -#ifdef WEAK_ALIAS -WEAK_ALIAS(fpsetround, _fpsetround) -ENTRY(_fpsetround) -#else -ENTRY(fpsetround) -#endif - fnstcw -4(%rsp) - stmxcsr -8(%rsp) - - andl $3,%edi - - movl -4(%rsp),%edx - rorl $10,%edx - movl %edx,%eax - andl $3,%eax - - andl $~3,%edx - orl %edi,%edx - roll $10,%edx - movl %edx,-4(%rsp) - - movl -8(%rsp),%edx - rorl $13,%edx - andl $~3,%edx - orl %edi,%edx - roll $13,%edx - movl %edx,-8(%rsp) - - ldmxcsr -8(%rsp) - fldcw -4(%rsp) - ret |