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

/*	$NetBSD: flt_rounds.S,v 1.6 2011/09/30 17:42:34 christos Exp $	*/

#include <machine/asm.h>

/*
 * 00 0 round to zero 
 * 01 1 round to nearest
 * 10 2 round to positive infinity
 * 11 3 round to negative infinity
 */
	.text
	_ALIGN_TEXT
ENTRY(__flt_rounds)
	fnstcw	-4(%rsp)
	movl	-4(%rsp), %ecx
	shrl	$9, %ecx
	andl	$6, %ecx
	movl	$0x2d, %eax	/* 0x2d = 00.10.11.01 */
	sarl	%cl, %eax	/* 0,1,2,3 -> 1,3,2,0 */
	andl	$3, %eax
	ret
Libraries updates and cleanup * Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2 2012-11-15 12:06:41 +01:00			`/* $NetBSD: flt_rounds.S,v 1.6 2011/09/30 17:42:34 christos Exp $ */`
Import unmodified NetBSD libc in trunk 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. 2011-02-14 20:36:03 +01:00
			`#include <machine/asm.h>`

Libraries updates and cleanup * Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2 2012-11-15 12:06:41 +01:00			`/*`
			`* 00 0 round to zero`
			`* 01 1 round to nearest`
			`* 10 2 round to positive infinity`
			`* 11 3 round to negative infinity`
			`*/`
Import unmodified NetBSD libc in trunk 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. 2011-02-14 20:36:03 +01:00			`.text`
			`_ALIGN_TEXT`
			`ENTRY(__flt_rounds)`
Libraries updates and cleanup * Updating common/lib * Updating lib/csu * Updating lib/libc * Updating libexec/ld.elf_so * Corrected test on __minix in featuretest to actually follow the meaning of the comment. * Cleaned up _REENTRANT-related defintions. * Disabled -D_REENTRANT for libfetch * Removing some unneeded __NBSD_LIBC defines and tests Change-Id: Ic1394baef74d11b9f86b312f5ff4bbc3cbf72ce2 2012-11-15 12:06:41 +01:00			`fnstcw -4(%rsp)`
			`movl -4(%rsp), %ecx`
			`shrl $9, %ecx`
			`andl $6, %ecx`
			`movl $0x2d, %eax /* 0x2d = 00.10.11.01 */`
			`sarl %cl, %eax /* 0,1,2,3 -> 1,3,2,0 */`
			`andl $3, %eax`
Import unmodified NetBSD libc in trunk 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. 2011-02-14 20:36:03 +01:00			`ret`