diff options
Diffstat (limited to 'src/arch/arm')
| -rw-r--r-- | src/arch/arm/isa/formats/data.isa | 50 |
1 files changed, 42 insertions, 8 deletions
diff --git a/src/arch/arm/isa/formats/data.isa b/src/arch/arm/isa/formats/data.isa index cd902242e..627c17ca0 100644 --- a/src/arch/arm/isa/formats/data.isa +++ b/src/arch/arm/isa/formats/data.isa @@ -131,12 +131,20 @@ def format ArmPackUnpackSatReverse() {{ const uint32_t a = bits(machInst, 19, 16); const uint32_t op2 = bits(machInst, 7, 5); if (bits(op2, 0) == 0) { + const IntRegIndex rn = + (IntRegIndex)(uint32_t)bits(machInst, 3, 0); + const IntRegIndex rd = + (IntRegIndex)(uint32_t)bits(machInst, 15, 12); + const uint32_t satImm = bits(machInst, 20, 16); + const uint32_t imm = bits(machInst, 11, 7); + const ArmShiftType type = + (ArmShiftType)(uint32_t)bits(machInst, 6, 5); if (op1 == 0) { return new WarnUnimplemented("pkh", machInst); } else if (bits(op1, 2, 1) == 1) { - return new WarnUnimplemented("ssat", machInst); + return new Ssat(machInst, rd, satImm + 1, rn, imm, type); } else if (bits(op1, 2, 1) == 3) { - return new WarnUnimplemented("usat", machInst); + return new Usat(machInst, rd, satImm, rn, imm, type); } return new Unknown(machInst); } @@ -154,7 +162,12 @@ def format ArmPackUnpackSatReverse() {{ break; case 0x2: if (op2 == 0x1) { - return new WarnUnimplemented("ssat16", machInst); + const IntRegIndex rn = + (IntRegIndex)(uint32_t)bits(machInst, 3, 0); + const IntRegIndex rd = + (IntRegIndex)(uint32_t)bits(machInst, 15, 12); + const uint32_t satImm = bits(machInst, 20, 16); + return new Ssat16(machInst, rd, satImm + 1, rn); } else if (op2 == 0x3) { if (a == 0xf) { return new WarnUnimplemented("sxtb", machInst); @@ -191,7 +204,12 @@ def format ArmPackUnpackSatReverse() {{ break; case 0x6: if (op2 == 0x1) { - return new WarnUnimplemented("usat16", machInst); + const IntRegIndex rn = + (IntRegIndex)(uint32_t)bits(machInst, 3, 0); + const IntRegIndex rd = + (IntRegIndex)(uint32_t)bits(machInst, 15, 12); + const uint32_t satImm = bits(machInst, 20, 16); + return new Usat16(machInst, rd, satImm, rn); } else if (op2 == 0x3) { if (a == 0xf) { return new WarnUnimplemented("uxtb", machInst); @@ -1108,11 +1126,19 @@ def format Thumb32DataProcPlainBin() {{ } case 0x12: if (!(bits(machInst, 14, 12) || bits(machInst, 7, 6))) { - return new WarnUnimplemented("ssat16", machInst); + const uint32_t satImm = bits(machInst, 4, 0); + return new Ssat16(machInst, rd, satImm + 1, rn); } // Fall through on purpose... case 0x10: - return new WarnUnimplemented("ssat", machInst); + { + const uint32_t satImm = bits(machInst, 4, 0); + const uint32_t imm = bits(machInst, 7, 6) | + (bits(machInst, 14, 12) << 2); + const ArmShiftType type = + (ArmShiftType)(uint32_t)bits(machInst, 21, 20); + return new Ssat(machInst, rd, satImm + 1, rn, imm, type); + } case 0x14: return new WarnUnimplemented("sbfx", machInst); case 0x16: @@ -1123,11 +1149,19 @@ def format Thumb32DataProcPlainBin() {{ } case 0x1a: if (!(bits(machInst, 14, 12) || bits(machInst, 7, 6))) { - return new WarnUnimplemented("usat16", machInst); + const uint32_t satImm = bits(machInst, 4, 0); + return new Usat16(machInst, rd, satImm, rn); } // Fall through on purpose... case 0x18: - return new WarnUnimplemented("usat", machInst); + { + const uint32_t satImm = bits(machInst, 4, 0); + const uint32_t imm = bits(machInst, 7, 6) | + (bits(machInst, 14, 12) << 2); + const ArmShiftType type = + (ArmShiftType)(uint32_t)bits(machInst, 21, 20); + return new Usat(machInst, rd, satImm, rn, imm, type); + } case 0x1c: return new WarnUnimplemented("ubfx", machInst); default: |