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Two new functions:

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o  syst_floatx80_to_int32_round_to_zero()
o  syst_floatx80_to_int64_round_to_zero()
Boilerplate.
<machine/asm.h>
This commit is contained in:
ross 2001-03-13 07:43:19 +00:00
parent 28904f8f58
commit 101660d9a5
1 changed files with 107 additions and 63 deletions
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170
regress/lib/libc/ieeefp/testfloat/arch/i386/systfloat.S
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@ -1,3 +1,42 @@
/* $NetBSD: systfloat.S,v 1.2 2001/03/13 07:43:19 ross Exp $ */
/* This is a derivative work. */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Ross Harvey.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
===============================================================================
@ -29,9 +68,10 @@ this code that are retained.
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_int32_to_floatx80
_syst_int32_to_floatx80:
#include <machine/asm.h>
ENTRY(syst_int32_to_floatx80)
fildl 8(%esp)
movl 4(%esp),%eax
fstpt (%eax)
@ -41,9 +81,8 @@ _syst_int32_to_floatx80:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_int64_to_floatx80
_syst_int64_to_floatx80:
ENTRY(syst_int64_to_floatx80)
fildq 8(%esp)
movl 4(%esp),%eax
fstpt (%eax)
@ -53,9 +92,7 @@ _syst_int64_to_floatx80:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_float32_to_floatx80
_syst_float32_to_floatx80:
ENTRY(syst_float32_to_floatx80)
flds 8(%esp)
movl 4(%esp),%eax
fstpt (%eax)
@ -65,9 +102,7 @@ _syst_float32_to_floatx80:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_float64_to_floatx80
_syst_float64_to_floatx80:
ENTRY(syst_float64_to_floatx80)
fldl 8(%esp)
movl 4(%esp),%eax
fstpt (%eax)
@ -77,9 +112,7 @@ _syst_float64_to_floatx80:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_to_int32
_syst_floatx80_to_int32:
ENTRY(syst_floatx80_to_int32)
fldt 4(%esp)
subl $4,%esp
fistpl (%esp)
@ -91,9 +124,7 @@ _syst_floatx80_to_int32:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_to_int64
_syst_floatx80_to_int64:
ENTRY(syst_floatx80_to_int64)
fldt 4(%esp)
subl $8,%esp
fistpq (%esp)
@ -106,9 +137,7 @@ _syst_floatx80_to_int64:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_to_float32
_syst_floatx80_to_float32:
ENTRY(syst_floatx80_to_float32)
fldt 4(%esp)
subl $4,%esp
fstps (%esp)
@ -120,9 +149,7 @@ _syst_floatx80_to_float32:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_to_float64
_syst_floatx80_to_float64:
ENTRY(syst_floatx80_to_float64)
fldt 4(%esp)
subl $8,%esp
fstpl (%esp)
@ -135,9 +162,7 @@ _syst_floatx80_to_float64:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_round_to_int
_syst_floatx80_round_to_int:
ENTRY(syst_floatx80_round_to_int)
fldt 8(%esp)
frndint
movl 4(%esp),%eax
@ -148,9 +173,7 @@ _syst_floatx80_round_to_int:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_add
_syst_floatx80_add:
ENTRY(syst_floatx80_add)
fldt 8(%esp)
fldt 20(%esp)
faddp
@ -162,9 +185,7 @@ _syst_floatx80_add:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_sub
_syst_floatx80_sub:
ENTRY(syst_floatx80_sub)
fldt 8(%esp)
fldt 20(%esp)
fsubrp
@ -176,9 +197,7 @@ _syst_floatx80_sub:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_mul
_syst_floatx80_mul:
ENTRY(syst_floatx80_mul)
fldt 8(%esp)
fldt 20(%esp)
fmulp
@ -190,9 +209,7 @@ _syst_floatx80_mul:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_div
_syst_floatx80_div:
ENTRY(syst_floatx80_div)
fldt 8(%esp)
fldt 20(%esp)
fdivrp
@ -204,9 +221,7 @@ _syst_floatx80_div:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_rem
_syst_floatx80_rem:
ENTRY(syst_floatx80_rem)
fldt 20(%esp)
fldt 8(%esp)
floatx80_rem_loop:
@ -223,9 +238,7 @@ floatx80_rem_loop:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_sqrt
_syst_floatx80_sqrt:
ENTRY(syst_floatx80_sqrt)
fldt 8(%esp)
fsqrt
movl 4(%esp),%eax
@ -236,9 +249,7 @@ _syst_floatx80_sqrt:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_eq
_syst_floatx80_eq:
ENTRY(syst_floatx80_eq)
fldt 16(%esp)
fldt 4(%esp)
fucompp
@ -253,9 +264,7 @@ _syst_floatx80_eq:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_le
_syst_floatx80_le:
ENTRY(syst_floatx80_le)
fldt 4(%esp)
fldt 16(%esp)
fcompp
@ -269,9 +278,7 @@ _syst_floatx80_le:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_lt
_syst_floatx80_lt:
ENTRY(syst_floatx80_lt)
fldt 4(%esp)
fldt 16(%esp)
fcompp
@ -285,9 +292,7 @@ _syst_floatx80_lt:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_eq_signaling
_syst_floatx80_eq_signaling:
ENTRY(syst_floatx80_eq_signaling)
fldt 16(%esp)
fldt 4(%esp)
fcompp
@ -302,9 +307,7 @@ _syst_floatx80_eq_signaling:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_le_quiet
_syst_floatx80_le_quiet:
ENTRY(syst_floatx80_le_quiet)
fldt 4(%esp)
fldt 16(%esp)
fucompp
@ -318,9 +321,8 @@ _syst_floatx80_le_quiet:
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
.align 2
.globl _syst_floatx80_lt_quiet
_syst_floatx80_lt_quiet:
ENTRY(syst_floatx80_lt_quiet)
fldt 4(%esp)
fldt 16(%esp)
fucompp
@ -330,3 +332,45 @@ _syst_floatx80_lt_quiet:
movzb %al,%eax
ret
/*
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
ENTRY(syst_floatx80_to_int32_round_to_zero)
pushl %ebp
movl %esp,%ebp
subl $12,%esp
fldt 8(%ebp)
fnstcw -4(%ebp)
movl -4(%ebp),%edx
movb $12,%dh
movl %edx,-12(%ebp)
fldcw -12(%ebp)
fistpl -12(%ebp)
movl -12(%ebp),%eax
fldcw -4(%ebp)
leave
ret
/*
-------------------------------------------------------------------------------
-------------------------------------------------------------------------------
*/
ENTRY(syst_floatx80_to_int64_round_to_zero)
pushl %ebp
movl %esp,%ebp
subl $12,%esp
fldt 8(%ebp)
fnstcw -4(%ebp)
movl -4(%ebp),%ecx
movb $12,%ch
movl %ecx,-12(%ebp)
fldcw -12(%ebp)
fistpq -12(%ebp)
movl -12(%ebp),%eax
movl -8(%ebp),%edx
fldcw -4(%ebp)
leave
ret