package backend.mips.instr;

import backend.mips.Register;
import backend.mips.instr.type.MipsAluType;
import backend.mips.instr.type.MipsType;

public class MipsAlu extends MipsInstr {
    private MipsAluType aluType;
    private Register rd;
    private Register rs;
    private Register rt;
    private int immediate;
    private boolean isImInstr;

    public MipsAlu(MipsAluType aluType, Register rd, Register rs, Register rt) {
        super(MipsType.ALU);
        this.aluType = aluType;
        this.rd = rd;
        this.rs = rs;
        this.rt = rt;
        this.immediate = 0;
        this.isImInstr = false;
    }

    public MipsAlu(MipsAluType aluType, Register rd, Register rs, int immediate) {
        super(MipsType.ALU);
        this.aluType = aluType;
        this.rd = rd;
        this.rs = rs;
        this.rt = null;
        this.immediate = immediate;
        this.isImInstr = true;
    }

    public String toString() {
        return isImInstr ? aluType.toString() + " " + rd + ", " + rs + ", " + immediate + "\n"
                : aluType.toString() + " " + rd + ", " + rs + ", " + rt + "\n";
    }
}