5980be9b3c
This work is based in part on code from NetBSD libm, libc and kernel. The library is partly public domain and partly BSD-style licensed.
33 lines
425 B
ArmAsm
33 lines
425 B
ArmAsm
/*
|
|
* Written by J.T. Conklin <jtc@NetBSD.org>.
|
|
* Public domain.
|
|
*/
|
|
|
|
#include <machine/asm.h>
|
|
|
|
RCSID("$NetBSD: s_ilogb.S,v 1.7 2003/07/26 19:25:02 salo Exp $")
|
|
|
|
ENTRY(ilogb)
|
|
#ifdef __i386__
|
|
pushl %ebp
|
|
movl %esp,%ebp
|
|
subl $4,%esp
|
|
|
|
fldl 8(%ebp)
|
|
fxtract
|
|
fstp %st
|
|
|
|
fistpl -4(%ebp)
|
|
movl -4(%ebp),%eax
|
|
|
|
leave
|
|
#else
|
|
movsd %xmm0,-8(%rsp)
|
|
fldl -8(%rsp)
|
|
fxtract
|
|
fstp %st
|
|
fistpl -8(%rsp)
|
|
movl -8(%rsp),%eax
|
|
#endif
|
|
ret
|