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| author | Ali Saidi <Ali.Saidi@ARM.com> | 2011-08-19 15:08:07 -0500 |
|---|---|---|
| committer | Ali Saidi <Ali.Saidi@ARM.com> | 2011-08-19 15:08:07 -0500 |
| commit | b94f84196924d60d4d4677929ddb6f677e3d96d9 (patch) | |
| tree | b084d2cf4bf59bd34ce2eb4eadcae7c2fd25d118 | |
| parent | b6203360ef684a8dc32981221336f5d216ce2668 (diff) | |
| download | gem5-b94f84196924d60d4d4677929ddb6f677e3d96d9.tar.xz | |
ARM: Add support for DIV/SDIV instructions.
| -rw-r--r-- | src/arch/arm/isa.cc | 2 | ||||
| -rw-r--r-- | src/arch/arm/isa/formats/mult.isa | 10 |
2 files changed, 11 insertions, 1 deletions
diff --git a/src/arch/arm/isa.cc b/src/arch/arm/isa.cc index b8a047f65..25bc3161b 100644 --- a/src/arch/arm/isa.cc +++ b/src/arch/arm/isa.cc @@ -140,7 +140,7 @@ ISA::clear() // See section B4.1.84 of ARM ARM // All values are latest for ARMv7-A profile - miscRegs[MISCREG_ID_ISAR0] = 0x01101111; + miscRegs[MISCREG_ID_ISAR0] = 0x02101111; miscRegs[MISCREG_ID_ISAR1] = 0x02112111; miscRegs[MISCREG_ID_ISAR2] = 0x21232141; miscRegs[MISCREG_ID_ISAR3] = 0x01112131; diff --git a/src/arch/arm/isa/formats/mult.isa b/src/arch/arm/isa/formats/mult.isa index cfd00b1a5..73157dd57 100644 --- a/src/arch/arm/isa/formats/mult.isa +++ b/src/arch/arm/isa/formats/mult.isa @@ -394,6 +394,16 @@ def format ArmSignedMultiplies() {{ } } break; + case 0x1: + if (op2 == 0 && m == 0 && ra == 0xf) { + return new Sdiv(machInst, rd, rn, rm); + } + break; + case 0x3: + if (op2 == 0 && m == 0 && ra == 0xf) { + return new Udiv(machInst, rd, rn, rm); + } + break; case 0x4: if (op2 == 0) { if (m) { |