Commit 418d7c7169818bce67a570fdc86ffb613f53263a
1 parent
df0d3736
Fix MIPS FP underflow handling, spotted by Daniel Jacobowitz.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3255 c046a42c-6fe2-441c-8c8c-71466251a162
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13 deletions
target-mips/op_helper.c
| ... | ... | @@ -1032,10 +1032,6 @@ FLOAT_OP(name, d) \ |
| 1032 | 1032 | update_fcr31(); \ |
| 1033 | 1033 | if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \ |
| 1034 | 1034 | FDT2 = 0x7ff7ffffffffffffULL; \ |
| 1035 | - else if (GET_FP_CAUSE(env->fpu->fcr31) & FP_UNDERFLOW) { \ | |
| 1036 | - if ((env->fpu->fcr31 & 0x3) == 0) \ | |
| 1037 | - FDT2 &= FLOAT_SIGN64; \ | |
| 1038 | - } \ | |
| 1039 | 1035 | } \ |
| 1040 | 1036 | FLOAT_OP(name, s) \ |
| 1041 | 1037 | { \ |
| ... | ... | @@ -1044,10 +1040,6 @@ FLOAT_OP(name, s) \ |
| 1044 | 1040 | update_fcr31(); \ |
| 1045 | 1041 | if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) \ |
| 1046 | 1042 | FST2 = 0x7fbfffff; \ |
| 1047 | - else if (GET_FP_CAUSE(env->fpu->fcr31) & FP_UNDERFLOW) { \ | |
| 1048 | - if ((env->fpu->fcr31 & 0x3) == 0) \ | |
| 1049 | - FST2 &= FLOAT_SIGN32; \ | |
| 1050 | - } \ | |
| 1051 | 1043 | } \ |
| 1052 | 1044 | FLOAT_OP(name, ps) \ |
| 1053 | 1045 | { \ |
| ... | ... | @@ -1058,11 +1050,6 @@ FLOAT_OP(name, ps) \ |
| 1058 | 1050 | if (GET_FP_CAUSE(env->fpu->fcr31) & FP_INVALID) { \ |
| 1059 | 1051 | FST2 = 0x7fbfffff; \ |
| 1060 | 1052 | FSTH2 = 0x7fbfffff; \ |
| 1061 | - } else if (GET_FP_CAUSE(env->fpu->fcr31) & FP_UNDERFLOW) { \ | |
| 1062 | - if ((env->fpu->fcr31 & 0x3) == 0) { \ | |
| 1063 | - FST2 &= FLOAT_SIGN32; \ | |
| 1064 | - FSTH2 &= FLOAT_SIGN32; \ | |
| 1065 | - } \ | |
| 1066 | 1053 | } \ |
| 1067 | 1054 | } |
| 1068 | 1055 | FLOAT_BINOP(add) | ... | ... |