Added ALUZero Output + corrected other syntax errors

rtl/mips_cpu_alu.v

@@ -13,7 +13,7 @@ module mips_cpu_alu(
 
   reg [31:0] SignExtend, ZeroExtend;
 
-  input logic[10:6] shamt = instr_readdata[10:6];
+  input logic[10:6] shamt = instr_readdata[10:6]
 
 );
 
@@ -78,7 +78,7 @@ module mips_cpu_alu(
 
   } ALUFlags;
 
-    always @(alu_in1, alu_in2, ALUFlags)
+  always @(A,B, ALUFlags)
   begin
 
   SignExtend = {{16{immediate[15]}}, immediate};
@@ -235,6 +235,18 @@ module mips_cpu_alu(
       end
 
 
+    endcase
   end
 	
+  always @(ALUOut) begin
+		if (ALUOut == 0) begin
+			ALUZero <= 1;
+		end else begin
+			ALUZero <= 0;
+		end
+	
+	end
+	end
+
+
 endmodule