diff options
Diffstat (limited to 'src/arch/alpha/isa/decoder.isa')
| -rw-r--r-- | src/arch/alpha/isa/decoder.isa | 57 |
1 files changed, 33 insertions, 24 deletions
diff --git a/src/arch/alpha/isa/decoder.isa b/src/arch/alpha/isa/decoder.isa index 03c8cc29e..af1a91a62 100644 --- a/src/arch/alpha/isa/decoder.isa +++ b/src/arch/alpha/isa/decoder.isa @@ -84,6 +84,9 @@ decode OPCODE default Unknown::unknown() { uint64_t tmp = write_result; // see stq_c Ra = (tmp == 0 || tmp == 1) ? tmp : Ra; + if (tmp == 1) { + xc->setStCondFailures(0); + } }}, mem_flags = LOCKED, inst_flags = IsStoreConditional); 0x2f: stq_c({{ Mem.uq = Ra; }}, {{ @@ -96,6 +99,12 @@ decode OPCODE default Unknown::unknown() { // mailbox access, and we don't update the // result register at all. Ra = (tmp == 0 || tmp == 1) ? tmp : Ra; + if (tmp == 1) { + // clear failure counter... this is + // non-architectural and for debugging + // only. + xc->setStCondFailures(0); + } }}, mem_flags = LOCKED, inst_flags = IsStoreConditional); } @@ -629,7 +638,7 @@ decode OPCODE default Unknown::unknown() { /* Rb is a fake dependency so here is a fun way to get * the parser to understand that. */ - Ra = xc->readMiscRegWithEffect(AlphaISA::IPR_CC) + (Rb & 0); + Ra = xc->readMiscReg(AlphaISA::IPR_CC) + (Rb & 0); #else Ra = curTick; @@ -681,7 +690,7 @@ decode OPCODE default Unknown::unknown() { 0x00: CallPal::call_pal({{ if (!palValid || (palPriv - && xc->readMiscRegWithEffect(AlphaISA::IPR_ICM) != AlphaISA::mode_kernel)) { + && xc->readMiscReg(AlphaISA::IPR_ICM) != AlphaISA::mode_kernel)) { // invalid pal function code, or attempt to do privileged // PAL call in non-kernel mode fault = new UnimplementedOpcodeFault; @@ -692,8 +701,8 @@ decode OPCODE default Unknown::unknown() { bool dopal = xc->simPalCheck(palFunc); if (dopal) { - xc->setMiscRegWithEffect(AlphaISA::IPR_EXC_ADDR, NPC); - NPC = xc->readMiscRegWithEffect(AlphaISA::IPR_PAL_BASE) + palOffset; + xc->setMiscReg(AlphaISA::IPR_EXC_ADDR, NPC); + NPC = xc->readMiscReg(AlphaISA::IPR_PAL_BASE) + palOffset; } } }}, IsNonSpeculative); @@ -753,7 +762,7 @@ decode OPCODE default Unknown::unknown() { miscRegIndex >= NumInternalProcRegs) fault = new UnimplementedOpcodeFault; else - Ra = xc->readMiscRegWithEffect(miscRegIndex); + Ra = xc->readMiscReg(miscRegIndex); }}, IsIprAccess); } } @@ -768,7 +777,7 @@ decode OPCODE default Unknown::unknown() { miscRegIndex >= NumInternalProcRegs) fault = new UnimplementedOpcodeFault; else - xc->setMiscRegWithEffect(miscRegIndex, Ra); + xc->setMiscReg(miscRegIndex, Ra); if (traceData) { traceData->setData(Ra); } }}, IsIprAccess); } @@ -783,19 +792,19 @@ decode OPCODE default Unknown::unknown() { // M5 special opcodes use the reserved 0x01 opcode space 0x01: decode M5FUNC { 0x00: arm({{ - AlphaPseudo::arm(xc->tcBase()); + PseudoInst::arm(xc->tcBase()); }}, IsNonSpeculative); 0x01: quiesce({{ - AlphaPseudo::quiesce(xc->tcBase()); + PseudoInst::quiesce(xc->tcBase()); }}, IsNonSpeculative, IsQuiesce); 0x02: quiesceNs({{ - AlphaPseudo::quiesceNs(xc->tcBase(), R16); + PseudoInst::quiesceNs(xc->tcBase(), R16); }}, IsNonSpeculative, IsQuiesce); 0x03: quiesceCycles({{ - AlphaPseudo::quiesceCycles(xc->tcBase(), R16); + PseudoInst::quiesceCycles(xc->tcBase(), R16); }}, IsNonSpeculative, IsQuiesce, IsUnverifiable); 0x04: quiesceTime({{ - R0 = AlphaPseudo::quiesceTime(xc->tcBase()); + R0 = PseudoInst::quiesceTime(xc->tcBase()); }}, IsNonSpeculative, IsUnverifiable); 0x10: ivlb({{ warn_once("Obsolete M5 instruction ivlb encountered.\n"); @@ -804,47 +813,47 @@ decode OPCODE default Unknown::unknown() { warn_once("Obsolete M5 instruction ivlb encountered.\n"); }}); 0x20: m5exit_old({{ - AlphaPseudo::m5exit_old(xc->tcBase()); + PseudoInst::m5exit_old(xc->tcBase()); }}, No_OpClass, IsNonSpeculative); 0x21: m5exit({{ - AlphaPseudo::m5exit(xc->tcBase(), R16); + PseudoInst::m5exit(xc->tcBase(), R16); }}, No_OpClass, IsNonSpeculative); 0x31: loadsymbol({{ - AlphaPseudo::loadsymbol(xc->tcBase()); + PseudoInst::loadsymbol(xc->tcBase()); }}, No_OpClass, IsNonSpeculative); 0x30: initparam({{ Ra = xc->tcBase()->getCpuPtr()->system->init_param; }}); 0x40: resetstats({{ - AlphaPseudo::resetstats(xc->tcBase(), R16, R17); + PseudoInst::resetstats(xc->tcBase(), R16, R17); }}, IsNonSpeculative); 0x41: dumpstats({{ - AlphaPseudo::dumpstats(xc->tcBase(), R16, R17); + PseudoInst::dumpstats(xc->tcBase(), R16, R17); }}, IsNonSpeculative); 0x42: dumpresetstats({{ - AlphaPseudo::dumpresetstats(xc->tcBase(), R16, R17); + PseudoInst::dumpresetstats(xc->tcBase(), R16, R17); }}, IsNonSpeculative); 0x43: m5checkpoint({{ - AlphaPseudo::m5checkpoint(xc->tcBase(), R16, R17); + PseudoInst::m5checkpoint(xc->tcBase(), R16, R17); }}, IsNonSpeculative); 0x50: m5readfile({{ - R0 = AlphaPseudo::readfile(xc->tcBase(), R16, R17, R18); + R0 = PseudoInst::readfile(xc->tcBase(), R16, R17, R18); }}, IsNonSpeculative); 0x51: m5break({{ - AlphaPseudo::debugbreak(xc->tcBase()); + PseudoInst::debugbreak(xc->tcBase()); }}, IsNonSpeculative); 0x52: m5switchcpu({{ - AlphaPseudo::switchcpu(xc->tcBase()); + PseudoInst::switchcpu(xc->tcBase()); }}, IsNonSpeculative); 0x53: m5addsymbol({{ - AlphaPseudo::addsymbol(xc->tcBase(), R16, R17); + PseudoInst::addsymbol(xc->tcBase(), R16, R17); }}, IsNonSpeculative); 0x54: m5panic({{ panic("M5 panic instruction called at pc=%#x.", xc->readPC()); }}, IsNonSpeculative); 0x55: m5anBegin({{ - AlphaPseudo::anBegin(xc->tcBase(), R16); + PseudoInst::anBegin(xc->tcBase(), R16); }}, IsNonSpeculative); 0x56: m5anWait({{ - AlphaPseudo::anWait(xc->tcBase(), R16, R17); + PseudoInst::anWait(xc->tcBase(), R16, R17); }}, IsNonSpeculative); } } |