From fc5c8a17f5fa865c78cf74601a6a6ca7f6754e36 Mon Sep 17 00:00:00 2001
From: jl7719 <jl7719@imperial.ac.uk>
Date: Tue, 15 Dec 2020 15:19:51 +0000
Subject: [PATCH] Fix signed error in alu block

---
 rtl/mips_cpu_alu.v | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/rtl/mips_cpu_alu.v b/rtl/mips_cpu_alu.v
index 9f2d48e..f7baa22 100644
--- a/rtl/mips_cpu_alu.v
+++ b/rtl/mips_cpu_alu.v
@@ -77,19 +77,19 @@ Ops ALUOps; //Note confusing naming to avoid potential duplicate variable naming
     assign ALUOps = ALUOp;
     case(ALUOps)
       ADD: begin
-          $signed(ALURes) = $signed(A) + $signed(B);
+          ALURes = $signed(A) + $signed(B);
       end
       
       SUB: begin
-          $signed(ALURes) = $signed(A) - $signed(B) ; 
+          ALURes = $signed(A) - $signed(B); 
       end        
 
       MUL: begin
-          $signed(ALURes) = $signed(A) * $signed(B); 
+          ALURes = $signed(A) * $signed(B); 
       end
 
       DIV: begin
-          $signed(ALURes) = $signed(A) / $signed(B);
+          ALURes = $signed(A) / $signed(B);
       end
 
       AND: begin
@@ -121,11 +121,11 @@ Ops ALUOps; //Note confusing naming to avoid potential duplicate variable naming
       end
 
       SRA: begin
-          $signed(ALURes) = $signed(B) >>> shamt;
+          ALURes = $signed(B) >>> shamt;
       end
 
       SRAV: begin
-          $signed(ALURes) = $signed(B) >>> A;
+          ALURes = $signed(B) >>> A;
       end
    
       EQ: begin
@@ -205,11 +205,11 @@ Ops ALUOps; //Note confusing naming to avoid potential duplicate variable naming
       end
 
       MULU: begin
-          $signed(ALURes) = $signed(A) * $signed(B); 
+          ALURes = $signed(A) * $signed(B); 
       end
 
       DIVU: begin
-          $signed(ALURes) = $signed(A) / $signed(B);
+          ALURes = $signed(A) / $signed(B);
       end
 
     endcase