From 7cf7c336a7fb8eb65f0360b18a81d7093ddc8c54 Mon Sep 17 00:00:00 2001
From: Clemens-Dautermann <clemens.dautermann@t-online.de>
Date: Wed, 23 Dec 2020 11:51:58 +0100
Subject: [PATCH] Fixed the division error. Kinda

---
 Compiler/DevFunctions.cs        |   2 +-
 Compiler/Generator/Generator.cs |   5 ++---
 stage_3/valid/div_2 => div_neg  | Bin 16336 -> 16336 bytes
 test.s                          |  12 ------------
 4 files changed, 3 insertions(+), 16 deletions(-)
 rename stage_3/valid/div_2 => div_neg (92%)
 delete mode 100644 test.s

diff --git a/Compiler/DevFunctions.cs b/Compiler/DevFunctions.cs
index d9f21cc..f1fb57e 100644
--- a/Compiler/DevFunctions.cs
+++ b/Compiler/DevFunctions.cs
@@ -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);
diff --git a/Compiler/Generator/Generator.cs b/Compiler/Generator/Generator.cs
index 1e8fefa..94eef80 100644
--- a/Compiler/Generator/Generator.cs
+++ b/Compiler/Generator/Generator.cs
@@ -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 $0, %eax\n" + 
                                 "sete %al\n";
                             break;
                         default:
@@ -95,8 +95,7 @@ namespace Compiler.Generator
                                 "movl %eax, %ecx\n" + //move calculated divisor to %ecx
                                 "pop %rax\n" + //pop divident do %eax
                                 "cdq\n" +
-                                "divl %ecx\n" +
-                                "movl %ecx, %eax\n";
+                                "divl %ecx\n"; //eax contains the result, edx the rest
                             break;
                         default:
                             throw new ArgumentOutOfRangeException();
diff --git a/stage_3/valid/div_2 b/div_neg
similarity index 92%
rename from stage_3/valid/div_2
rename to div_neg
index 221cd842490e17735ba1c2a0a0a0e2803ac74c95..ce16a2473d24fc90b6c3628c5a2bedfedc63b491 100755
GIT binary patch
delta 232
zcmcamf1!Q@2P5ZJMg}n0x>=C%Fr!G!Z{}r_j~fay1QogNNphJ{x5e6W^9v?FUd}W|
z1_qB_-uDcX?FDYT@GvkicznMRu!EI>fuZwY#LVv>52sD|%rE!LG2Exu_O%WJgJYOy
z=QYPr&(5!oA&#AYLOptQ@8~cv1p8?I^=N*>@nZhwI>9Es$qLL0lN2O4bw2+8AHu-E
zFlVx&f<5Df$%zW?tUo^d|IfPlp<p%dWDPwF#ub|r_1KviS8UES{LjR=U~;BOJmZSV
iCr$bp4K_!bPG@6mo&3>SpL2yE*h35}Hf!1}X9fVMGE~X{

delta 260
zcmcamf1!Q@2P5ZIMg}mrx>=C%Fr&!aQ_iNAJhxM_Uz>_AIAHK}smS)C%`cezcsbh`
z85lfzdHES9+Y8)I;bLH52-pGA+j%fz=J$`CCjxdbF)%P7c&tdg!~F6MAX`53%l&c;
z_vy7gt;4|J80Oh|%`w!o^Q&WsW9Oexk6zt9It&cKKAL|$n%{7|sNWnX*u*zUL4wog
z<NyC53=9l=CMzn~Gk%zysNl{j@$vtE*3Ab6t9d7D=vgqH*qo@x&dhjXbEe^cCdLDk
pGfm<dPfR{(($5&MIns1G8{^W+AFcH{PY8mX!N720v!=~*W&j-@V0Zuk

diff --git a/test.s b/test.s
deleted file mode 100644
index 5116b4f..0000000
--- a/test.s
+++ /dev/null
@@ -1,12 +0,0 @@
-.globl main
-main:
-movl $3, %eax
-push %rax
-movl $2, %eax
-pop %rcx
-sub %ecx, %eax
-push %rax
-movl $1, %eax
-pop %rcx
-sub %ecx, %eax
-ret