freebsd-dev/lib/msun/i387/s_copysignf.S
David Schultz fe69257da2 Import the subset of J.T. Conklin's single-precision x86-optimized
math routines that appear to be (a) correct and (b) faster than their
MI counterparts on my Pentium 4.

Obtained from:	NetBSD
2005-01-13 18:58:25 +00:00

20 lines
349 B
ArmAsm

/*
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
/* RCSID("$NetBSD: s_copysignf.S,v 1.3 1995/05/08 23:53:25 jtc Exp $") */
ENTRY(copysignf)
movl 8(%esp),%edx
andl $0x80000000,%edx
movl 4(%esp),%eax
andl $0x7fffffff,%eax
orl %edx,%eax
movl %eax,4(%esp)
flds 4(%esp)
ret