clara/lcc
1
0
Fork 0
Code Issues 1 Pull requests Projects Releases Packages Wiki Activity Actions

implemented assembly for addition, substraction and multiplication. Division is not working yet

Browse source
This commit is contained in:
Clemens-Dautermann 2020-08-24 12:33:45 +02:00
parent 66417bb16e
commit 120a575b15
5 changed files with 134 additions and 69 deletions
Download patch file Download diff file Expand all files Collapse all files

38
Compiler/Generator/Generator.cs
View file

@ -63,6 +63,44 @@ namespace Compiler.Generator
((UnaryOperatorNode) rootNode).OperatorType);
}
break;
case NodeType.BinaryOperatorNode:
switch (((BinaryOperatorNode) rootNode).OperatorType)
{
case OperatorType.Addition:
s = $"{Generate(rootNode.Children[0])}" +
"push %rax\n" +
$"{Generate(rootNode.Children[1])}" +
"pop %rcx\n" +
"add %ecx, %eax\n";
break;
case OperatorType.Subtraction:
s = $"{Generate(rootNode.Children[1])}" +
"push %rax\n" +
$"{Generate(rootNode.Children[0])}" +
"pop %rcx\n" +
"sub %ecx, %eax\n";
break;
case OperatorType.Multiplication:
s = $"{Generate(rootNode.Children[0])}" +
"push %rax\n" +
$"{Generate(rootNode.Children[1])}" +
"pop %rcx\n" +
"imul %rcx, %rax\n";
break;
case OperatorType.Division:
s = $"{Generate(rootNode.Children[0])}" +
"push %rax\n" +
$"{Generate(rootNode.Children[1])}" +
"movl %eax, %ecx" + //move calculated divisor to %ecx
"pop %rbx\n" + //pop divident do %ebx
"cdq\n" +
"idivl %ecx\n";
break;
default:
throw new ArgumentOutOfRangeException();
}
break;
default:
throw new NotSpecifiedException(rootNode.NodeType);