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target-mips: clear softfpu exception state for comparison instructions

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MIPS FPU instructions should start with a clean softfpu status. This
is done for the most instructions, but not for comparison ones.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2011-04-14 00:49:30 +02:00
parent 30a00bc142
commit 6a385343e4
1 changed files with 25 additions and 16 deletions
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41
target-mips/op_helper.c
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@ -2874,7 +2874,9 @@ uint64_t helper_float_mulr_ps(uint64_t fdt0, uint64_t fdt1)
#define FOP_COND_D(op, cond) \
void helper_cmp_d_ ## op (uint64_t fdt0, uint64_t fdt1, int cc) \
{ \
int c = cond; \
int c; \
set_float_exception_flags(0, &env->active_fpu.fp_status); \
c = cond; \
update_fcr31(); \
if (c) \
SET_FP_COND(cc, env->active_fpu); \
@ -2884,6 +2886,7 @@ void helper_cmp_d_ ## op (uint64_t fdt0, uint64_t fdt1, int cc) \
void helper_cmpabs_d_ ## op (uint64_t fdt0, uint64_t fdt1, int cc) \
{ \
int c; \
set_float_exception_flags(0, &env->active_fpu.fp_status); \
fdt0 = float64_abs(fdt0); \
fdt1 = float64_abs(fdt1); \
c = cond; \
@ -2918,7 +2921,9 @@ FOP_COND_D(ngt, float64_unordered(fdt1, fdt0, &env->active_fpu.fp_status) || fl
#define FOP_COND_S(op, cond) \
void helper_cmp_s_ ## op (uint32_t fst0, uint32_t fst1, int cc) \
{ \
int c = cond; \
int c; \
set_float_exception_flags(0, &env->active_fpu.fp_status); \
c = cond; \
update_fcr31(); \
if (c) \
SET_FP_COND(cc, env->active_fpu); \
@ -2928,6 +2933,7 @@ void helper_cmp_s_ ## op (uint32_t fst0, uint32_t fst1, int cc) \
void helper_cmpabs_s_ ## op (uint32_t fst0, uint32_t fst1, int cc) \
{ \
int c; \
set_float_exception_flags(0, &env->active_fpu.fp_status); \
fst0 = float32_abs(fst0); \
fst1 = float32_abs(fst1); \
c = cond; \
@ -2962,13 +2968,15 @@ FOP_COND_S(ngt, float32_unordered(fst1, fst0, &env->active_fpu.fp_status) || fl
#define FOP_COND_PS(op, condl, condh) \
void helper_cmp_ps_ ## op (uint64_t fdt0, uint64_t fdt1, int cc) \
{ \
uint32_t fst0 = fdt0 & 0XFFFFFFFF; \
uint32_t fsth0 = fdt0 >> 32; \
uint32_t fst1 = fdt1 & 0XFFFFFFFF; \
uint32_t fsth1 = fdt1 >> 32; \
int cl = condl; \
int ch = condh; \
\
uint32_t fst0, fsth0, fst1, fsth1; \
int ch, cl; \
set_float_exception_flags(0, &env->active_fpu.fp_status); \
fst0 = fdt0 & 0XFFFFFFFF; \
fsth0 = fdt0 >> 32; \
fst1 = fdt1 & 0XFFFFFFFF; \
fsth1 = fdt1 >> 32; \
cl = condl; \
ch = condh; \
update_fcr31(); \
if (cl) \
SET_FP_COND(cc, env->active_fpu); \
@ -2981,13 +2989,14 @@ void helper_cmp_ps_ ## op (uint64_t fdt0, uint64_t fdt1, int cc) \
} \
void helper_cmpabs_ps_ ## op (uint64_t fdt0, uint64_t fdt1, int cc) \
{ \
uint32_t fst0 = float32_abs(fdt0 & 0XFFFFFFFF); \
uint32_t fsth0 = float32_abs(fdt0 >> 32); \
uint32_t fst1 = float32_abs(fdt1 & 0XFFFFFFFF); \
uint32_t fsth1 = float32_abs(fdt1 >> 32); \
int cl = condl; \
int ch = condh; \
\
uint32_t fst0, fsth0, fst1, fsth1; \
int ch, cl; \
fst0 = float32_abs(fdt0 & 0XFFFFFFFF); \
fsth0 = float32_abs(fdt0 >> 32); \
fst1 = float32_abs(fdt1 & 0XFFFFFFFF); \
fsth1 = float32_abs(fdt1 >> 32); \
cl = condl; \
ch = condh; \
update_fcr31(); \
if (cl) \
SET_FP_COND(cc, env->active_fpu); \