b6cbf7203b
This patch imports the unmodified current version of NetBSD libc. The NetBSD includes are in /nbsd_include, while the libc code itself is split between lib/nbsd_libc and common/lib/libc.
41 lines
753 B
ArmAsm
41 lines
753 B
ArmAsm
/* $NetBSD: fpsetmask.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(fpsetmask, _fpsetmask)
|
|
ENTRY(_fpsetmask)
|
|
#else
|
|
ENTRY(fpsetmask)
|
|
#endif
|
|
fnstcw -4(%rsp)
|
|
stmxcsr -8(%rsp)
|
|
andl $63,%edi
|
|
notl %edi
|
|
|
|
movl -4(%rsp),%edx
|
|
movl %edx,%eax
|
|
andl %edi,%edx
|
|
movl %edx,-4(%rsp)
|
|
|
|
movl -8(%rsp),%edx
|
|
roll $7,%edi
|
|
andl %edi,%edx
|
|
movl %edx,-8(%rsp)
|
|
|
|
fldcw -4(%rsp)
|
|
ldmxcsr -8(%rsp)
|
|
andl $63,%eax
|
|
ret
|