diff options
Diffstat (limited to 'compiler/utils/arm/assembler_arm32.cc')
| -rw-r--r-- | compiler/utils/arm/assembler_arm32.cc | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/compiler/utils/arm/assembler_arm32.cc b/compiler/utils/arm/assembler_arm32.cc index ebca25bbf9..0a227b21cd 100644 --- a/compiler/utils/arm/assembler_arm32.cc +++ b/compiler/utils/arm/assembler_arm32.cc @@ -750,6 +750,35 @@ void Arm32Assembler::movt(Register rd, uint16_t imm16, Condition cond) { } +void Arm32Assembler::EmitMiscellaneous(Condition cond, uint8_t op1, + uint8_t op2, uint32_t a_part, + uint32_t rest) { + int32_t encoding = (static_cast<int32_t>(cond) << kConditionShift) | + B26 | B25 | B23 | + (op1 << 20) | + (a_part << 16) | + (op2 << 5) | + B4 | + rest; + Emit(encoding); +} + + +void Arm32Assembler::EmitReverseBytes(Register rd, Register rm, Condition cond, + uint8_t op1, uint8_t op2) { + CHECK_NE(rd, kNoRegister); + CHECK_NE(rm, kNoRegister); + CHECK_NE(cond, kNoCondition); + CHECK_NE(rd, PC); + CHECK_NE(rm, PC); + + int32_t encoding = (static_cast<int32_t>(rd) << kRdShift) | + (0b1111 << 8) | + static_cast<int32_t>(rm); + EmitMiscellaneous(cond, op1, op2, 0b1111, encoding); +} + + void Arm32Assembler::rbit(Register rd, Register rm, Condition cond) { CHECK_NE(rd, kNoRegister); CHECK_NE(rm, kNoRegister); @@ -764,6 +793,21 @@ void Arm32Assembler::rbit(Register rd, Register rm, Condition cond) { } +void Arm32Assembler::rev(Register rd, Register rm, Condition cond) { + EmitReverseBytes(rd, rm, cond, 0b011, 0b001); +} + + +void Arm32Assembler::rev16(Register rd, Register rm, Condition cond) { + EmitReverseBytes(rd, rm, cond, 0b011, 0b101); +} + + +void Arm32Assembler::revsh(Register rd, Register rm, Condition cond) { + EmitReverseBytes(rd, rm, cond, 0b111, 0b101); +} + + void Arm32Assembler::EmitMulOp(Condition cond, int32_t opcode, Register rd, Register rn, Register rm, Register rs) { |