dynarmic/src/frontend/A64/translate/impl/data_processing_addsub.cpp
2020-04-22 20:42:44 +01:00

32 lines
838 B
C++

/* This file is part of the dynarmic project.
* Copyright (c) 2018 MerryMage
* This software may be used and distributed according to the terms of the GNU
* General Public License version 2 or any later version.
*/
#include "frontend/A64/translate/impl/impl.h"
namespace Dynarmic {
namespace A64 {
bool TranslatorVisitor::ADD_shift(bool sf, Imm<2> shift, Reg Rm, Imm<6> imm6, Reg Rn, Reg Rd) {
size_t datasize = sf ? 64 : 32;
if (shift == 0b11) return ReservedValue();
if (!sf && imm6.Bit<5>()) return ReservedValue();
u8 shift_amount = imm6.ZeroExtend<u8>();
auto operand1 = X(datasize, Rn);
auto operand2 = ShiftReg(datasize, Rm, shift, ir.Imm8(shift_amount));
auto result = ir.Add(operand1, operand2);
X(datasize, Rd, result);
return true;
}
} // namespace A64
} // namespace Dynarmic