mirror of
https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git
synced 2025-08-08 13:39:25 -04:00
39 lines
538 B
ArmAsm
39 lines
538 B
ArmAsm
/* $NetBSD: fpsetmask.S,v 1.5 2014/05/23 02:34:19 uebayasi Exp $ */
|
|
|
|
/*
|
|
* Written by Charles M. Hannum, Apr 9, 1995
|
|
* Public domain.
|
|
*/
|
|
|
|
#include <machine/asm.h>
|
|
|
|
#ifdef WEAK_ALIAS
|
|
WEAK_ALIAS(fpsetmask, _fpsetmask)
|
|
ENTRY(_fpsetmask)
|
|
#else
|
|
ENTRY(fpsetmask)
|
|
#endif
|
|
subl $4,%esp
|
|
|
|
fnstcw (%esp)
|
|
movl (%esp),%eax
|
|
movl %eax,%edx
|
|
|
|
notl %eax
|
|
andl $63,%eax
|
|
|
|
addl %eax,%edx
|
|
movl 8(%esp),%ecx
|
|
andl $63,%ecx
|
|
subl %ecx,%edx
|
|
movl %edx,(%esp)
|
|
fldcw (%esp)
|
|
|
|
addl $4,%esp
|
|
ret
|
|
#ifdef WEAK_ALIAS
|
|
END(_fpsetmask)
|
|
#else
|
|
END(fpsetmask)
|
|
#endif
|