diff options
| -rw-r--r-- | src/arch/alpha/isa/decoder.isa | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/arch/alpha/isa/decoder.isa b/src/arch/alpha/isa/decoder.isa index c5f47aaa2..584d64a3d 100644 --- a/src/arch/alpha/isa/decoder.isa +++ b/src/arch/alpha/isa/decoder.isa @@ -748,6 +748,7 @@ decode OPCODE default Unknown::unknown() { int miscRegIndex = (ipr_index < NumInternalProcRegs) ? IprToMiscRegIndex[ipr_index] : -1; if(miscRegIndex < 0 || !IprIsReadable(miscRegIndex) || + miscRegIndex >= NumInternalProcRegs) fault = new UnimplementedOpcodeFault; else Ra = xc->readMiscRegWithEffect(miscRegIndex, fault); @@ -761,7 +762,8 @@ decode OPCODE default Unknown::unknown() { 1: hw_mtpr({{ int miscRegIndex = (ipr_index < NumInternalProcRegs) ? IprToMiscRegIndex[ipr_index] : -1; - if(miscRegIndex < 0 || !IprIsWritable(miscRegIndex)) + if(miscRegIndex < 0 || !IprIsWritable(miscRegIndex) + miscRegIndex >= NumInternalProcRegs) fault = new UnimplementedOpcodeFault; else xc->setMiscRegWithEffect(miscRegIndex, Ra); |