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-rw-r--r--src/arch/alpha/isa/decoder.isa8
1 files changed, 2 insertions, 6 deletions
diff --git a/src/arch/alpha/isa/decoder.isa b/src/arch/alpha/isa/decoder.isa
index 0cbe38ceb..550aa62a3 100644
--- a/src/arch/alpha/isa/decoder.isa
+++ b/src/arch/alpha/isa/decoder.isa
@@ -746,9 +746,7 @@ decode OPCODE default Unknown::unknown() {
format HwMoveIPR {
1: hw_mfpr({{
int miscRegIndex = IprToMiscRegIndex[ipr_index];
- if(miscRegIndex < 0 ||
- (miscRegIndex >= MinWriteOnlyIpr &&
- miscRegIndex <= MaxWriteOnlyIpr))
+ if(miscRegIndex < 0 || !IprIsReadable(miscRegIndex))
fault = new UnimplementedOpcodeFault;
else
Ra = xc->readMiscRegWithEffect(miscRegIndex, fault);
@@ -761,9 +759,7 @@ decode OPCODE default Unknown::unknown() {
format HwMoveIPR {
1: hw_mtpr({{
int miscRegIndex = IprToMiscRegIndex[ipr_index];
- if(miscRegIndex < 0 ||
- (miscRegIndex >= MinReadOnlyIpr &&
- miscRegIndex <= MaxWriteOnlyIpr))
+ if(miscRegIndex < 0 || !IprIsWritable(miscRegIndex))
fault = new UnimplementedOpcodeFault;
else
xc->setMiscRegWithEffect(miscRegIndex, Ra);