OpenE2K
/
qemu-e2k
13
4
Fork 0
Code Issues 4 Pull Requests Projects 2 Releases Activity

target-mips: cleanup float to int conversion helpers 

Instead of accessing the flags from the floating point control
register after updating it, read the softfloat flags.

This is just code cleanup and should not change the behaviour.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2012-10-23 09:53:50 +02:00
parent 5dbe90bba7
commit 4cc2e5f989
1 changed files with 79 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

118
target-mips/op_helper.c
View File

@ -2509,9 +2509,11 @@ uint64_t helper_float_cvtl_d(CPUMIPSState *env, uint64_t fdt0)
uint64_t dt2;
dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2520,9 +2522,11 @@ uint64_t helper_float_cvtl_s(CPUMIPSState *env, uint32_t fst0)
uint64_t dt2;
dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2613,8 +2617,10 @@ uint32_t helper_float_cvtw_s(CPUMIPSState *env, uint32_t fst0)
wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
return wt2;
}
@ -2623,9 +2629,11 @@ uint32_t helper_float_cvtw_d(CPUMIPSState *env, uint64_t fdt0)
uint32_t wt2;
wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2636,9 +2644,11 @@ uint64_t helper_float_roundl_d(CPUMIPSState *env, uint64_t fdt0)
set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2649,9 +2659,11 @@ uint64_t helper_float_roundl_s(CPUMIPSState *env, uint32_t fst0)
set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2662,9 +2674,11 @@ uint32_t helper_float_roundw_d(CPUMIPSState *env, uint64_t fdt0)
set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2675,9 +2689,11 @@ uint32_t helper_float_roundw_s(CPUMIPSState *env, uint32_t fst0)
set_float_rounding_mode(float_round_nearest_even, &env->active_fpu.fp_status);
wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2686,9 +2702,11 @@ uint64_t helper_float_truncl_d(CPUMIPSState *env, uint64_t fdt0)
uint64_t dt2;
dt2 = float64_to_int64_round_to_zero(fdt0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2697,9 +2715,11 @@ uint64_t helper_float_truncl_s(CPUMIPSState *env, uint32_t fst0)
uint64_t dt2;
dt2 = float32_to_int64_round_to_zero(fst0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2708,9 +2728,11 @@ uint32_t helper_float_truncw_d(CPUMIPSState *env, uint64_t fdt0)
uint32_t wt2;
wt2 = float64_to_int32_round_to_zero(fdt0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2719,9 +2741,11 @@ uint32_t helper_float_truncw_s(CPUMIPSState *env, uint32_t fst0)
uint32_t wt2;
wt2 = float32_to_int32_round_to_zero(fst0, &env->active_fpu.fp_status);
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2732,9 +2756,11 @@ uint64_t helper_float_ceill_d(CPUMIPSState *env, uint64_t fdt0)
set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2745,9 +2771,11 @@ uint64_t helper_float_ceill_s(CPUMIPSState *env, uint32_t fst0)
set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2758,9 +2786,11 @@ uint32_t helper_float_ceilw_d(CPUMIPSState *env, uint64_t fdt0)
set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2771,9 +2801,11 @@ uint32_t helper_float_ceilw_s(CPUMIPSState *env, uint32_t fst0)
set_float_rounding_mode(float_round_up, &env->active_fpu.fp_status);
wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2784,9 +2816,11 @@ uint64_t helper_float_floorl_d(CPUMIPSState *env, uint64_t fdt0)
set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
dt2 = float64_to_int64(fdt0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2797,9 +2831,11 @@ uint64_t helper_float_floorl_s(CPUMIPSState *env, uint32_t fst0)
set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
dt2 = float32_to_int64(fst0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
dt2 = FLOAT_SNAN64;
}
update_fcr31(env);
return dt2;
}
@ -2810,9 +2846,11 @@ uint32_t helper_float_floorw_d(CPUMIPSState *env, uint64_t fdt0)
set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
wt2 = float64_to_int32(fdt0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}
@ -2823,9 +2861,11 @@ uint32_t helper_float_floorw_s(CPUMIPSState *env, uint32_t fst0)
set_float_rounding_mode(float_round_down, &env->active_fpu.fp_status);
wt2 = float32_to_int32(fst0, &env->active_fpu.fp_status);
RESTORE_ROUNDING_MODE;
update_fcr31(env);
if (GET_FP_CAUSE(env->active_fpu.fcr31) & (FP_OVERFLOW | FP_INVALID))
if (get_float_exception_flags(&env->active_fpu.fp_status)
& (float_flag_invalid | float_flag_overflow)) {
wt2 = FLOAT_SNAN32;
}
update_fcr31(env);
return wt2;
}