minix/lib/libc/arch/x86_64/gen/fpgetprec.S

26 lines
470 B
ArmAsm
Raw Normal View History

/* $NetBSD: fpgetprec.S,v 1.1 2011/03/26 19:51:42 christos Exp $ */
/*
* Written by J.T. Conklin, Apr 4, 1995
* Public domain.
*/
#include <machine/asm.h>
/*
* XXX store only x87 state. If an application only uses the fp*
* interface, this should be in sync with the SSE mxcsr register.
*/
#ifdef WEAK_ALIAS
WEAK_ALIAS(fpgetprec, _fpgetprec)
ENTRY(_fpgetprec)
#else
ENTRY(fpgetprec)
#endif
fnstcw -4(%rsp)
movl -4(%rsp),%eax
rorl $8,%eax
andl $3,%eax
ret