C3a2nasm.java

package nasm;
import java.util.*;
import ts.*;
import c3a.*;

public class C3a2nasm implements C3aVisitor <NasmOperand> {
    private C3a c3a;
    private Nasm nasm;
    private Ts tableGlobale;
    private TsItemFct currentFct;
    private NasmRegister esp;
    private NasmRegister ebp;
    private NasmLabel label;

    
    public C3a2nasm(C3a c3a, Ts tableGlobale){
		this.c3a = c3a;
		nasm = new Nasm(tableGlobale);
		nasm.setTempCounter(c3a.getTempCounter());

		this.tableGlobale = tableGlobale;
		this.currentFct = null;
		esp = new NasmRegister(-1);
		esp.colorRegister(Nasm.REG_ESP);

		ebp = new NasmRegister(-1);
		ebp.colorRegister(Nasm.REG_EBP);
    }

    public Nasm getNasm(){return nasm;}


    public NasmOperand visit(C3a c3a){
        return null;
    }
    public NasmOperand visit(C3aInstAdd inst){
        NasmOperand label = (inst.label != null) ?
                inst.label.accept(this)
                : null;
        nasm.ajouteInst(new NasmMov(label,
                inst.result.accept(this),
                inst.op1.accept(this), ""));
        nasm.ajouteInst(new NasmAdd(null,
                inst.result.accept(this),
                inst.op2.accept(this), ""));
        return null;
    }
    public NasmOperand visit(C3aInstCall inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this):null;
        NasmOperand addr = inst.result.accept(this);
        nasm.ajouteInst(new NasmCall(label,addr,""));
        return null;
    }
    private NasmOperand getLabelFromC3aInst(C3aInst inst) {
        return new NasmLabel(inst.label.toString());
    }
    public NasmOperand visit(C3aInstFBegin inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this) : null;
        nasm.ajouteInst(new NasmInst() {
            @Override
            void addLabel(String formatInst, NasmOperand label) {
                super.addLabel(formatInst, label);
            }
        });
        return null;
    }
    public NasmOperand visit(C3aInst inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this) : null;
        NasmOperand addr = inst.label.accept(this);
        NasmOperand destination = inst.label.accept(this);
        NasmOperand source = inst.label.accept(this);
        nasm.ajouteInst(new NasmInst() {
            void addLabel(String formatInst, NasmOperand label) {
                super.addLabel(formatInst, label);
            }
        });
        return null;
    }
    public NasmOperand visit(C3aInstJumpIfLess inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this): null;
        NasmOperand oper1 = inst.op1.accept(this);
        NasmOperand oper2 = inst.op2.accept(this);
        NasmOperand result = inst.result.accept(this);
        nasm.ajouteInst(new NasmCmp(label,oper1,oper2,""));
        nasm.ajouteInst(new NasmJle(null, result, ""));
        return null;
    }
    public NasmOperand visit(C3aInstMult inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this) : null;
        nasm.ajouteInst(new NasmMov(label, inst.result.accept(this), inst.op1.accept(this),""));
        nasm.ajouteInst(new NasmMul(null, inst.result.accept(this), inst.op2.accept(this),""));
        return null;
    }

    public NasmOperand visit(C3aInstRead inst){
        nasm.ajouteInst(new NasmMov (getLabelFromC3aInst(inst),
                nasm.newRegister(),
                new NasmLabel("sinput"), ""));
        nasm.ajouteInst(new NasmCall(null,
                new NasmLabel("readline"), ""));
        nasm.ajouteInst(new NasmCall(null,
                new NasmLabel("atoi"), ""));
        nasm.ajouteInst(new NasmMov (null,
                inst.result.accept(this),
                nasm.newRegister() , ""));
        return null;
    }


    public NasmOperand visit(C3aInstSub inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this) : null;
        nasm.ajouteInst(new NasmMov(label, inst.result.accept(this), inst.op1.accept(this),""));
        nasm.ajouteInst(new NasmSub(null, inst.result.accept(this), inst.op2.accept(this),""));
        return null;
    }
    public NasmOperand visit(C3aInstAffect inst) {
        NasmOperand label = (inst.label != null) ? inst.label.accept(this): null;
        NasmOperand oper1 = inst.op1.accept(this);
        NasmOperand result = inst.result.accept(this);
        nasm.ajouteInst(new NasmMov(label, inst.result.accept(this), inst.op1.accept(this),""));
        nasm.ajouteInst(new NasmInst() {
            void addLabel(String formatInst, NasmOperand label) {
                super.addLabel(formatInst, label);
            }
        });
        return null;
    }

    // à revoir
    public NasmOperand visit(C3aInstDiv inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this) : null;
        nasm.ajouteInst(new NasmMov(label, inst.result.accept(this), inst.op1.accept(this),""));
        nasm.ajouteInst(new NasmDiv(null, inst.result.accept(this), inst.op2.accept(this),""));
        return null;
    }
     //à revoir
    public NasmOperand visit(C3aInstFEnd inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this) : null;
        nasm.ajouteInst(new NasmInst() {
            void addLabel(String formatInst, NasmOperand label) {
                super.addLabel(formatInst, label);
            }
        });
        return null;
    }
    public NasmOperand visit(C3aInstJumpIfEqual inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this): null;
        NasmOperand oper1 = inst.op1.accept(this);
        NasmOperand oper2 = inst.op2.accept(this);
        NasmOperand result = inst.result.accept(this);
        nasm.ajouteInst(new NasmCmp(label,oper1,oper2,""));
        nasm.ajouteInst(new NasmJe(null, result, ""));
        return null;
    }
    public NasmOperand visit(C3aInstJumpIfNotEqual inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this): null;
        NasmOperand oper1 = inst.op1.accept(this);
        NasmOperand oper2 = inst.op2.accept(this);
        NasmOperand result = inst.result.accept(this);
        nasm.ajouteInst(new NasmCmp(label,oper1,oper2,""));
        nasm.ajouteInst(new NasmJne(null, result, ""));
        return null;
    }
    public NasmOperand visit(C3aInstJump inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this):null;
        NasmOperand addr = inst.result.accept(this);
        nasm.ajouteInst(new NasmJmp(label,addr,""));
        return null;
    }
    public NasmOperand visit(C3aInstParam inst){
        NasmOperand label = (inst.label != null) ? inst.label.accept(this): null;
        //nasm.ajouteInst(new NasmMov(label, ));
        return null;
    }
    public NasmOperand visit(C3aInstReturn inst){
        return null;
    }
    public NasmOperand visit(C3aInstWrite inst){
        nasm.ajouteInst(new NasmMov (getLabelFromC3aInst(inst)));
        nasm.ajouteInst(new NasmCall(null, new NasmLabel("iprintLF"), ""));
        return null;
    }
    public NasmOperand visit(C3aInstStop inst){
        return null;
    }

    public NasmOperand visit(C3aConstant oper){
        return null;
    }
    public NasmOperand visit(C3aBooleanConstant oper){
        return null;
    }
    public NasmOperand visit(C3aLabel oper){
        return new NasmLabel("l" + label.number);
    }
    public NasmOperand visit(C3aTemp oper){
        return null;
    }

    public NasmOperand visit(C3aVar oper){
        return null;
    }
    public NasmOperand visit(C3aFunction oper){
        return null;
    }


}