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NetBSD/lib/libm/arch/i387/s_ilogbf.S

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ArmAsm
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Assembly language versions of some of the "float" functions.
1994-08-19 07:56:44 +04:00
/*
Winning Strategies has placed this code into the Public Domain
1995-04-29 02:43:31 +04:00
* Written by J.T. Conklin <jtc@netbsd.org>.
* Public domain.
Assembly language versions of some of the "float" functions.
1994-08-19 07:56:44 +04:00
*/
#include <machine/asm.h>
Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct.
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RCSID("$NetBSD: s_ilogbf.S,v 1.5 2001/06/19 00:26:30 fvdl Exp $")
Assembly language versions of some of the "float" functions.
1994-08-19 07:56:44 +04:00
ENTRY(ilogbf)
Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct.
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#ifdef __i386__
Setup stack-frame correctly (same as s_ilogb.S).
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pushl %ebp
Assembly language versions of some of the "float" functions.
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movl %esp,%ebp
subl $4,%esp
flds 8(%ebp)
fxtract
Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct.
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fstp %st
Assembly language versions of some of the "float" functions.
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fistpl -4(%ebp)
movl -4(%ebp),%eax
leave
Modify the i387 code so that it can be shared between the i386 port and the x86_64 port. XXX some files should be distinct.
2001-06-19 04:26:29 +04:00
#else
movss %xmm0,-4(%rsp)
flds -4(%rsp)
fxtract
fstp %st
fistpl -4(%rsp)
movl -4(%rsp),%eax
#endif
Assembly language versions of some of the "float" functions.
1994-08-19 07:56:44 +04:00
ret