diff options
Diffstat (limited to 'src/arch/mips/isa/decoder.isa')
| -rw-r--r-- | src/arch/mips/isa/decoder.isa | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/src/arch/mips/isa/decoder.isa b/src/arch/mips/isa/decoder.isa index 99c9e1604..b5d1df4fc 100644 --- a/src/arch/mips/isa/decoder.isa +++ b/src/arch/mips/isa/decoder.isa @@ -289,8 +289,8 @@ decode OPCODE_HI default Unknown::unknown() { 0x0: decode RS_MSB { 0x0: decode RS { format CP0Control { - 0x0: mfc0({{ Rt = xc->readMiscReg(RD << 5 | SEL); }}); - 0x4: mtc0({{ xc->setMiscReg(RD << 5 | SEL, Rt); }}); + 0x0: mfc0({{ Rt = xc->readMiscRegNoEffect(RD << 5 | SEL); }}); + 0x4: mtc0({{ xc->setMiscRegNoEffect(RD << 5 | SEL, Rt); }}); } format MipsMT { @@ -1093,6 +1093,9 @@ decode OPCODE_HI default Unknown::unknown() { 0x0: StoreCond::sc({{ Mem.uw = Rt.uw;}}, {{ uint64_t tmp = write_result; Rt.uw = (tmp == 0 || tmp == 1) ? tmp : Rt.uw; + if (tmp == 1) { + xc->setStCondFailures(0); + } }}, mem_flags=LOCKED, inst_flags = IsStoreConditional); format StoreMemory { |