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Fixed the division error. Kinda

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This commit is contained in:
Clemens-Dautermann 2020-12-23 11:51:58 +01:00
parent 72023962f5
commit 7cf7c336a7
4 changed files with 3 additions and 16 deletions
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2
Compiler/DevFunctions.cs
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@ -112,7 +112,7 @@ namespace Compiler
{
*/
string file = "/home/clemens/repositorys/lcc/stage_3/valid/div_2.c";
string file = "/home/clemens/repositorys/lcc/stage_3/valid/div_neg.c";
Console.WriteLine("-------------");
List<Token> tokens = TestLexer(file, 0);

5
Compiler/Generator/Generator.cs
View file

@ -55,7 +55,7 @@ namespace Compiler.Generator
case OperatorType.LogicalNegation:
s = $"{Generate(rootNode.Children[0])}" +
"cmpl $0, %eax\n" +
"movl $0, %eax\n" + //xorl %eax, %eax should also work, but doesn't
"movl $0, %eax\n" +
"sete %al\n";
break;
default:
@ -95,8 +95,7 @@ namespace Compiler.Generator
"movl %eax, %ecx\n" + //move calculated divisor to %ecx
"pop %rax\n" + //pop divident do %eax
"cdq\n" +
"divl %ecx\n" +
"movl %ecx, %eax\n";
"divl %ecx\n"; //eax contains the result, edx the rest
break;
default:
throw new ArgumentOutOfRangeException();