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Fix computation for ceil, floor and round instructions. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3028 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-06-27 19:01:46 +00:00
parent 403f14ef1e
commit e3b60f1d9e
1 changed files with 24 additions and 6 deletions
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30
target-mips/op_helper.c
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@ -783,6 +783,7 @@ FLOAT_OP(roundl, d)
{ {
set_float_rounding_mode(float_round_nearest_even, &env->fp_status); set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
DT2 = float64_round_to_int(FDT0, &env->fp_status); DT2 = float64_round_to_int(FDT0, &env->fp_status);
DT2 = float64_to_int64(DT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -791,7 +792,8 @@ FLOAT_OP(roundl, d)
FLOAT_OP(roundl, s) FLOAT_OP(roundl, s)
{ {
set_float_rounding_mode(float_round_nearest_even, &env->fp_status); set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
DT2 = float32_round_to_int(FST0, &env->fp_status); WT2 = float32_round_to_int(FST0, &env->fp_status);
DT2 = float32_to_int64(WT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -800,7 +802,10 @@ FLOAT_OP(roundl, s)
FLOAT_OP(roundw, d) FLOAT_OP(roundw, d)
{ {
set_float_rounding_mode(float_round_nearest_even, &env->fp_status); set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
WT2 = float64_round_to_int(FDT0, &env->fp_status); DT2 = float64_round_to_int(FDT0, &env->fp_status);
// ???
env->fp_status.float_exception_flags &= ~float_flag_inexact;
WT2 = float64_to_int32(DT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -810,6 +815,7 @@ FLOAT_OP(roundw, s)
{ {
set_float_rounding_mode(float_round_nearest_even, &env->fp_status); set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
WT2 = float32_round_to_int(FST0, &env->fp_status); WT2 = float32_round_to_int(FST0, &env->fp_status);
WT2 = float32_to_int32(WT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -849,6 +855,7 @@ FLOAT_OP(ceill, d)
{ {
set_float_rounding_mode(float_round_up, &env->fp_status); set_float_rounding_mode(float_round_up, &env->fp_status);
DT2 = float64_round_to_int(FDT0, &env->fp_status); DT2 = float64_round_to_int(FDT0, &env->fp_status);
DT2 = float64_to_int64(DT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -857,7 +864,8 @@ FLOAT_OP(ceill, d)
FLOAT_OP(ceill, s) FLOAT_OP(ceill, s)
{ {
set_float_rounding_mode(float_round_up, &env->fp_status); set_float_rounding_mode(float_round_up, &env->fp_status);
DT2 = float32_round_to_int(FST0, &env->fp_status); WT2 = float32_round_to_int(FST0, &env->fp_status);
DT2 = float32_to_int64(WT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -866,7 +874,10 @@ FLOAT_OP(ceill, s)
FLOAT_OP(ceilw, d) FLOAT_OP(ceilw, d)
{ {
set_float_rounding_mode(float_round_up, &env->fp_status); set_float_rounding_mode(float_round_up, &env->fp_status);
WT2 = float64_round_to_int(FDT0, &env->fp_status); DT2 = float64_round_to_int(FDT0, &env->fp_status);
// ???
env->fp_status.float_exception_flags &= ~float_flag_inexact;
WT2 = float64_to_int32(DT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -876,6 +887,7 @@ FLOAT_OP(ceilw, s)
{ {
set_float_rounding_mode(float_round_up, &env->fp_status); set_float_rounding_mode(float_round_up, &env->fp_status);
WT2 = float32_round_to_int(FST0, &env->fp_status); WT2 = float32_round_to_int(FST0, &env->fp_status);
WT2 = float32_to_int32(WT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -886,6 +898,7 @@ FLOAT_OP(floorl, d)
{ {
set_float_rounding_mode(float_round_down, &env->fp_status); set_float_rounding_mode(float_round_down, &env->fp_status);
DT2 = float64_round_to_int(FDT0, &env->fp_status); DT2 = float64_round_to_int(FDT0, &env->fp_status);
DT2 = float64_to_int64(DT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -894,7 +907,8 @@ FLOAT_OP(floorl, d)
FLOAT_OP(floorl, s) FLOAT_OP(floorl, s)
{ {
set_float_rounding_mode(float_round_down, &env->fp_status); set_float_rounding_mode(float_round_down, &env->fp_status);
DT2 = float32_round_to_int(FST0, &env->fp_status); WT2 = float32_round_to_int(FST0, &env->fp_status);
DT2 = float32_to_int64(WT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -903,7 +917,10 @@ FLOAT_OP(floorl, s)
FLOAT_OP(floorw, d) FLOAT_OP(floorw, d)
{ {
set_float_rounding_mode(float_round_down, &env->fp_status); set_float_rounding_mode(float_round_down, &env->fp_status);
WT2 = float64_round_to_int(FDT0, &env->fp_status); DT2 = float64_round_to_int(FDT0, &env->fp_status);
// ???
env->fp_status.float_exception_flags &= ~float_flag_inexact;
WT2 = float64_to_int32(DT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))
@ -913,6 +930,7 @@ FLOAT_OP(floorw, s)
{ {
set_float_rounding_mode(float_round_down, &env->fp_status); set_float_rounding_mode(float_round_down, &env->fp_status);
WT2 = float32_round_to_int(FST0, &env->fp_status); WT2 = float32_round_to_int(FST0, &env->fp_status);
WT2 = float32_to_int32(WT2, &env->fp_status);
RESTORE_ROUNDING_MODE; RESTORE_ROUNDING_MODE;
update_fcr31(); update_fcr31();
if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID)) if (GET_FP_CAUSE(env->fcr31) & (FP_OVERFLOW | FP_INVALID))