From c7feb58815d44a3a97d357ee3260ade4ece5701e Mon Sep 17 00:00:00 2001
From: Adrian Conlon <Adrian.conlon@gmail.com>
Date: Thu, 21 Feb 2019 00:02:31 +0000
Subject: [PATCH] Correct a Z80 compare mistake: the result of the implied
 subtraction shouldn't be applied to the flags register!

Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>
---
 Z80/Z80.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Z80/Z80.cs b/Z80/Z80.cs
index ff43196..2678e92 100644
--- a/Z80/Z80.cs
+++ b/Z80/Z80.cs
@@ -1673,7 +1673,7 @@ namespace EightBit
 
         private void Compare(byte value)
         {
-            this.F() = this.Subtract(this.A(), value);
+            this.Subtract(this.A(), value);
             this.F() = AdjustXY(this.F(), value);
         }