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target-m68k: move FPU helpers to fpu_helper.c

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Backports commit c88f8107b14456d514b00571b0675cb532e82cad from qemu
This commit is contained in:
Laurent Vivier 2018-03-03 15:03:02 -05:00 committed by Lioncash
parent 199c62ea01
commit 409369a7ce
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GPG key ID: 4E3C3CC1031BA9C7
5 changed files with 117 additions and 90 deletions
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1
msvc/unicorn/m68k-softmmu/m68k-softmmu.vcxproj
View file

@ -61,6 +61,7 @@
<ClCompile Include="..\..\..\qemu\translate-common.c" />
<ClCompile Include="..\..\..\qemu\hw\m68k\dummy_m68k.c" />
<ClCompile Include="..\..\..\qemu\target\m68k\cpu.c" />
<ClCompile Include="..\..\..\qemu\target\m68k\fpu_helper.c" />
<ClCompile Include="..\..\..\qemu\target\m68k\helper.c" />
<ClCompile Include="..\..\..\qemu\target\m68k\op_helper.c" />
<ClCompile Include="..\..\..\qemu\target\m68k\translate.c" />

3
msvc/unicorn/m68k-softmmu/m68k-softmmu.vcxproj.filters
View file

@ -102,6 +102,9 @@
<ClCompile Include="..\..\..\qemu\target\m68k\cpu.c">
<Filter>target\m68k</Filter>
</ClCompile>
<ClCompile Include="..\..\..\qemu\target\m68k\fpu_helper.c">
<Filter>target\m68k</Filter>
</ClCompile>
<ClCompile Include="..\..\..\qemu\target\m68k\helper.c">
<Filter>target\m68k</Filter>
</ClCompile>

2
qemu/target/m68k/Makefile.objs
View file

@ -1,2 +1,2 @@
obj-y += translate.o op_helper.o helper.o cpu.o
obj-y += translate.o op_helper.o helper.o cpu.o fpu_helper.o
obj-y += unicorn.o

112
qemu/target/m68k/fpu_helper.c Normal file
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@ -0,0 +1,112 @@
/*
* m68k FPU helpers
*
* Copyright (c) 2006-2007 CodeSourcery
* Written by Paul Brook
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "exec/helper-proto.h"
uint32_t HELPER(f64_to_i32)(CPUM68KState *env, float64 val)
{
return float64_to_int32(val, &env->fp_status);
}
float32 HELPER(f64_to_f32)(CPUM68KState *env, float64 val)
{
return float64_to_float32(val, &env->fp_status);
}
float64 HELPER(i32_to_f64)(CPUM68KState *env, uint32_t val)
{
return int32_to_float64(val, &env->fp_status);
}
float64 HELPER(f32_to_f64)(CPUM68KState *env, float32 val)
{
return float32_to_float64(val, &env->fp_status);
}
float64 HELPER(iround_f64)(CPUM68KState *env, float64 val)
{
return float64_round_to_int(val, &env->fp_status);
}
float64 HELPER(itrunc_f64)(CPUM68KState *env, float64 val)
{
return float64_trunc_to_int(val, &env->fp_status);
}
float64 HELPER(sqrt_f64)(CPUM68KState *env, float64 val)
{
return float64_sqrt(val, &env->fp_status);
}
float64 HELPER(abs_f64)(float64 val)
{
return float64_abs(val);
}
float64 HELPER(chs_f64)(float64 val)
{
return float64_chs(val);
}
float64 HELPER(add_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_add(a, b, &env->fp_status);
}
float64 HELPER(sub_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_sub(a, b, &env->fp_status);
}
float64 HELPER(mul_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_mul(a, b, &env->fp_status);
}
float64 HELPER(div_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_div(a, b, &env->fp_status);
}
float64 HELPER(sub_cmp_f64)(CPUM68KState *env, float64 a, float64 b)
{
/* ??? This may incorrectly raise exceptions. */
/* ??? Should flush denormals to zero. */
float64 res;
res = float64_sub(a, b, &env->fp_status);
if (float64_is_quiet_nan(res, &env->fp_status)) {
/* +/-inf compares equal against itself, but sub returns nan. */
if (!float64_is_quiet_nan(a, &env->fp_status)
&& !float64_is_quiet_nan(b, &env->fp_status)) {
res = float64_zero;
if (float64_lt_quiet(a, res, &env->fp_status)) {
res = float64_chs(res);
}
}
}
return res;
}
uint32_t HELPER(compare_f64)(CPUM68KState *env, float64 val)
{
return float64_compare_quiet(val, float64_zero, &env->fp_status);
}

89
qemu/target/m68k/helper.c
View file

@ -198,95 +198,6 @@ void HELPER(set_sr)(CPUM68KState *env, uint32_t val)
m68k_switch_sp(env);
}
/* FPU helpers. */
uint32_t HELPER(f64_to_i32)(CPUM68KState *env, float64 val)
{
return float64_to_int32(val, &env->fp_status);
}
float32 HELPER(f64_to_f32)(CPUM68KState *env, float64 val)
{
return float64_to_float32(val, &env->fp_status);
}
float64 HELPER(i32_to_f64)(CPUM68KState *env, uint32_t val)
{
return int32_to_float64(val, &env->fp_status);
}
float64 HELPER(f32_to_f64)(CPUM68KState *env, float32 val)
{
return float32_to_float64(val, &env->fp_status);
}
float64 HELPER(iround_f64)(CPUM68KState *env, float64 val)
{
return float64_round_to_int(val, &env->fp_status);
}
float64 HELPER(itrunc_f64)(CPUM68KState *env, float64 val)
{
return float64_trunc_to_int(val, &env->fp_status);
}
float64 HELPER(sqrt_f64)(CPUM68KState *env, float64 val)
{
return float64_sqrt(val, &env->fp_status);
}
float64 HELPER(abs_f64)(float64 val)
{
return float64_abs(val);
}
float64 HELPER(chs_f64)(float64 val)
{
return float64_chs(val);
}
float64 HELPER(add_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_add(a, b, &env->fp_status);
}
float64 HELPER(sub_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_sub(a, b, &env->fp_status);
}
float64 HELPER(mul_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_mul(a, b, &env->fp_status);
}
float64 HELPER(div_f64)(CPUM68KState *env, float64 a, float64 b)
{
return float64_div(a, b, &env->fp_status);
}
float64 HELPER(sub_cmp_f64)(CPUM68KState *env, float64 a, float64 b)
{
/* ??? This may incorrectly raise exceptions. */
/* ??? Should flush denormals to zero. */
float64 res;
res = float64_sub(a, b, &env->fp_status);
if (float64_is_quiet_nan(res, &env->fp_status)) {
/* +/-inf compares equal against itself, but sub returns nan. */
if (!float64_is_quiet_nan(a, &env->fp_status)
&& !float64_is_quiet_nan(b, &env->fp_status)) {
res = float64_zero;
if (float64_lt_quiet(a, res, &env->fp_status))
res = float64_chs(res);
}
}
return res;
}
uint32_t HELPER(compare_f64)(CPUM68KState *env, float64 val)
{
return float64_compare_quiet(val, float64_zero, &env->fp_status);
}
/* MAC unit. */
/* FIXME: The MAC unit implementation is a bit of a mess. Some helpers
take values, others take register numbers and manipulate the contents