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target-m68k: move FPU helpers to fpu_helper.c 

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Message-Id: <20170611231633.32582-3-laurent@vivier.eu>
master
Laurent Vivier 2017-06-12 01:16:28 +02:00
parent e5b0cbe8e8
commit c88f8107b1
3 changed files with 113 additions and 89 deletions
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2
target/m68k/Makefile.objs
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@ -1,3 +1,3 @@
obj-y += m68k-semi.o
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 += gdbstub.o

112
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);
}

88
target/m68k/helper.c
View File

@ -284,94 +284,6 @@ 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