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author | Gabe Black <gblack@eecs.umich.edu> | 2006-10-31 16:02:28 -0500 |
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committer | Gabe Black <gblack@eecs.umich.edu> | 2006-10-31 16:02:28 -0500 |
commit | ece796ab8af23705f3f4d7bd12ee623f3961c99e (patch) | |
tree | 29f7e1786617c0eb5f57a59359c8cdb1d69743ba /src/arch/alpha/isa/decoder.isa | |
parent | 3c19c5f0f239b8d31a3a8acd03eff9923f19b6ee (diff) | |
download | gem5-ece796ab8af23705f3f4d7bd12ee623f3961c99e.tar.xz |
Make the IPRs use regular miscreg indexes, and make a table or two to find the miscreg index of a specific IPR.
--HG--
extra : convert_revision : dd235261e7086d6667b1b2bdc4a81b2573e21d53
Diffstat (limited to 'src/arch/alpha/isa/decoder.isa')
-rw-r--r-- | src/arch/alpha/isa/decoder.isa | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/src/arch/alpha/isa/decoder.isa b/src/arch/alpha/isa/decoder.isa index 93b941d72..852f483e0 100644 --- a/src/arch/alpha/isa/decoder.isa +++ b/src/arch/alpha/isa/decoder.isa @@ -745,7 +745,13 @@ decode OPCODE default Unknown::unknown() { 0: OpcdecFault::hw_mfpr(); format HwMoveIPR { 1: hw_mfpr({{ - Ra = xc->readMiscRegWithEffect(ipr_index, fault); + int miscRegIndex = IprToMiscRegIndex[ipr_index]; + if(miscRegIndex < 0 || + (miscRegIndex >= MinWriteOnlyIpr && + miscRegIndex <= MaxWriteOnlyIpr)) + fault = new UnimplementedOpcodeFault; + else + Ra = xc->readMiscRegWithEffect(ipr_index, fault); }}, IsIprAccess); } } @@ -754,7 +760,13 @@ decode OPCODE default Unknown::unknown() { 0: OpcdecFault::hw_mtpr(); format HwMoveIPR { 1: hw_mtpr({{ - xc->setMiscRegWithEffect(ipr_index, Ra); + int miscRegIndex = IprToMiscRegIndex[ipr_index]; + if(miscRegIndex < 0 || + (miscRegIndex >= MinReadOnlyIpr && + miscRegIndex <= MaxWriteOnlyIpr)) + fault = new UnimplementedOpcodeFault; + else + xc->setMiscRegWithEffect(ipr_index, Ra); if (traceData) { traceData->setData(Ra); } }}, IsIprAccess); } |