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Implemented boolean expressions

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Marvin Kaiser
2019-12-20 09:01:03 +01:00
parent f341401ccc
commit a79b7c9362
8 changed files with 230 additions and 2 deletions
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106
src/main/java/de/hsrm/compiler/Klang/visitors/GenASM.java
View File

@@ -74,6 +74,111 @@ public class GenASM implements Visitor<Void> {
return null;
}
@Override
public Void visit(EqualityExpression e) {
int lblTrue = ++lCount;
int lblEnd = ++lCount;
e.lhs.welcome(this);
this.ex.write(" pushq %rax\n");
e.rhs.welcome(this);
this.ex.write(" popq %rbx\n");
this.ex.write(" cmp %rax, %rbx\n");
this.ex.write(" je .L" + lblTrue + "\n");
// false
this.ex.write(" movq $0, %rax\n");
this.ex.write(" jmp .L" + lblEnd + "\n");
this.ex.write(".L" + lblTrue + ":\n");
// true
this.ex.write(" movq $1, %rax\n");
this.ex.write(".L" + lblEnd + ":\n");
return null;
}
@Override
public Void visit(GTExpression e) {
int lblTrue = ++lCount;
int lblEnd = ++lCount;
e.lhs.welcome(this);
this.ex.write(" pushq %rax\n");
e.rhs.welcome(this);
this.ex.write(" popq %rbx\n");
this.ex.write(" cmp %rax, %rbx\n");
this.ex.write(" jg .L" + lblTrue + "\n");
// false
this.ex.write(" movq $0, %rax\n");
this.ex.write(" jmp .L" + lblEnd + "\n");
this.ex.write(".L" + lblTrue + ":\n");
// true
this.ex.write(" movq $1, %rax\n");
this.ex.write(".L" + lblEnd + ":\n");
return null;
}
@Override
public Void visit(GTEExpression e) {
int lblTrue = ++lCount;
int lblEnd = ++lCount;
e.lhs.welcome(this);
this.ex.write(" pushq %rax\n");
e.rhs.welcome(this);
this.ex.write(" popq %rbx\n");
this.ex.write(" cmp %rax, %rbx\n");
this.ex.write(" jge .L" + lblTrue + "\n");
// false
this.ex.write(" movq $0, %rax\n");
this.ex.write(" jmp .L" + lblEnd + "\n");
this.ex.write(".L" + lblTrue + ":\n");
// true
this.ex.write(" movq $1, %rax\n");
this.ex.write(".L" + lblEnd + ":\n");
return null;
}
@Override
public Void visit(LTExpression e) {
int lblTrue = ++lCount;
int lblEnd = ++lCount;
e.lhs.welcome(this);
this.ex.write(" pushq %rax\n");
e.rhs.welcome(this);
this.ex.write(" popq %rbx\n");
this.ex.write(" cmp %rax, %rbx\n");
this.ex.write(" jl .L" + lblTrue + "\n");
// false
this.ex.write(" movq $0, %rax\n");
this.ex.write(" jmp .L" + lblEnd + "\n");
this.ex.write(".L" + lblTrue + ":\n");
// true
this.ex.write(" movq $1, %rax\n");
this.ex.write(".L" + lblEnd + ":\n");
return null;
}
@Override
public Void visit(LTEExpression e) {
int lblTrue = ++lCount;
int lblEnd = ++lCount;
e.lhs.welcome(this);
this.ex.write(" pushq %rax\n");
e.rhs.welcome(this);
this.ex.write(" popq %rbx\n");
this.ex.write(" cmp %rax, %rbx\n");
this.ex.write(" jle .L" + lblTrue + "\n");
// false
this.ex.write(" movq $0, %rax\n");
this.ex.write(" jmp .L" + lblEnd + "\n");
this.ex.write(".L" + lblTrue + ":\n");
// true
this.ex.write(" movq $1, %rax\n");
this.ex.write(".L" + lblEnd + ":\n");
return null;
}
@Override
public Void visit(AdditionExpression e) {
e.lhs.welcome(this);
@@ -286,4 +391,5 @@ public class GenASM implements Visitor<Void> {
this.ex.write(" ret\n");
return null;
}
}

35
src/main/java/de/hsrm/compiler/Klang/visitors/GetVars.java
View File

@@ -24,6 +24,41 @@ class GetVars implements Visitor<Void> {
return null;
}
@Override
public Void visit(EqualityExpression e) {
e.lhs.welcome(this);
e.rhs.welcome(this);
return null;
}
@Override
public Void visit(GTExpression e) {
e.lhs.welcome(this);
e.rhs.welcome(this);
return null;
}
@Override
public Void visit(GTEExpression e) {
e.lhs.welcome(this);
e.rhs.welcome(this);
return null;
}
@Override
public Void visit(LTExpression e) {
e.lhs.welcome(this);
e.rhs.welcome(this);
return null;
}
@Override
public Void visit(LTEExpression e) {
e.lhs.welcome(this);
e.rhs.welcome(this);
return null;
}
@Override
public Void visit(AdditionExpression e) {
e.lhs.welcome(this);