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ARM: Add support for DIV/SDIV instructions.

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This commit is contained in:
Ali Saidi 2011-08-19 15:08:07 -05:00
parent b6203360ef
commit b94f841969
2 changed files with 11 additions and 1 deletions
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2
src/arch/arm/isa.cc
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@ -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;

10
src/arch/arm/isa/formats/mult.isa
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@ -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) {