dynarmic/src/frontend/A32/translate/translate_arm/misc.cpp

/* This file is part of the dynarmic project.
 * Copyright (c) 2016 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 "translate_arm.h"

namespace Dynarmic {
namespace A32 {

bool ArmTranslatorVisitor::arm_CLZ(Cond cond, Reg d, Reg m) {
    if (d == Reg::PC || m == Reg::PC)
        return UnpredictableInstruction();
    if (ConditionPassed(cond)) {
        ir.SetRegister(d, ir.CountLeadingZeros(ir.GetRegister(m)));
    }
    return true;
}

bool ArmTranslatorVisitor::arm_SEL(Cond cond, Reg n, Reg d, Reg m) {
    if (n == Reg::PC || d == Reg::PC || m == Reg::PC)
        return UnpredictableInstruction();

    if (ConditionPassed(cond)) {
        auto to = ir.GetRegister(m);
        auto from = ir.GetRegister(n);
        auto result = ir.PackedSelect(ir.GetGEFlags(), to, from);
        ir.SetRegister(d, result);
    }

    return true;
}

} // namespace A32
} // namespace Dynarmic