sortix-mirror/libm/arch/x86_64/fpgetround.S

25 lines
471 B
ArmAsm

/* $NetBSD: fpgetround.S,v 1.4 2011/09/30 17:42:34 christos Exp $ */
/*
* Written by J.T. Conklin, Apr 4, 1995
* Public domain.
*/
#include <machine/asm.h>
/*
* XXX load 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(fpgetround, _fpgetround)
ENTRY(_fpgetround)
#else
ENTRY(fpgetround)
#endif
fnstcw -4(%rsp)
movl -4(%rsp), %eax
andl $0x00000c00, %eax
ret