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| author | Andrew Waterman <waterman@s141.Millennium.Berkeley.EDU> | 2011-05-20 15:56:25 -0700 |
|---|---|---|
| committer | Andrew Waterman <waterman@s141.Millennium.Berkeley.EDU> | 2011-05-23 02:26:27 -0700 |
| commit | 81a089d4ad784742adb4f13415a7fa26d9b7e504 (patch) | |
| tree | 147a9ec4ba6fb94f9b7f695d49e851dbc1c86caf /pk | |
| parent | 44191e8a5ef91b18e9a06c8ec9fec6e5f1f3860b (diff) | |
| download | pk-81a089d4ad784742adb4f13415a7fa26d9b7e504.zip pk-81a089d4ad784742adb4f13415a7fa26d9b7e504.tar.gz pk-81a089d4ad784742adb4f13415a7fa26d9b7e504.tar.bz2 | |
[pk] fixed FP emulation (rounding mode bug)
Diffstat (limited to 'pk')
| -rw-r--r-- | pk/fp.c | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -40,7 +40,7 @@ int emulate_fp(trapframe_t* tf) #define RRS2 ((tf->insn >> 17) & 0x1F) #define RRS3 ((tf->insn >> 12) & 0x1F) #define RRD ((tf->insn >> 27) & 0x1F) - #define RM ((tf->insn >> 9) & 0x3) + #define RM ((tf->insn >> 9) & 0x7) int32_t imm = ((int32_t)tf->insn << 10) >> 20; int32_t bimm = (((tf->insn >> 27) & 0x1f) << 7) | ((tf->insn >> 10) & 0x7f); @@ -61,7 +61,7 @@ int emulate_fp(trapframe_t* tf) long effective_address_store = XRS1 + bimm; softfloat_exceptionFlags = 0; - softfloat_roundingMode = (RM & 4) ? (RM & 3) : ((fp_state.fsr >> 5) & 3); + softfloat_roundingMode = (RM == 7) ? ((fp_state.fsr >> 5) & 7) : RM; #define IS_INSN(x) ((tf->insn & MASK_ ## x) == MATCH_ ## x) |