From ec59b422b94befbafa05aee14b0d46ea3c7fd040 Mon Sep 17 00:00:00 2001
From: Adrian Conlon <adrian.conlon@gmail.com>
Date: Thu, 21 May 2026 16:35:20 +0100
Subject: [PATCH] Simplify PC increment/decrement a little

---
 EightBit/Processor.cs | 2 --
 MC6809/MC6809.cs      | 2 +-
 Z80/Z80.cs            | 4 ++--
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/EightBit/Processor.cs b/EightBit/Processor.cs
index 2f725bc..c7d1a0d 100644
--- a/EightBit/Processor.cs
+++ b/EightBit/Processor.cs
@@ -206,8 +206,6 @@ namespace EightBit
 
         protected virtual void IncrementPC() => this.PC.Increment();
 
-        protected virtual void DecrementPC() => this.PC.Decrement();
-
         protected virtual void ImmediateAddress()
         {
             this.Bus.Address.Assign(this.PC);
diff --git a/MC6809/MC6809.cs b/MC6809/MC6809.cs
index b5af411..5a58782 100644
--- a/MC6809/MC6809.cs
+++ b/MC6809/MC6809.cs
@@ -635,7 +635,7 @@ namespace MC6809
         protected override void ImmediateAddress()
         {
             this.EA.Assign(this.PC);
-            this.IncrementPC();
+            this.PC.Increment();
         }
 
         protected void RelativeByteAddress()
diff --git a/Z80/Z80.cs b/Z80/Z80.cs
index d5a46ba..63626b4 100644
--- a/Z80/Z80.cs
+++ b/Z80/Z80.cs
@@ -1984,9 +1984,9 @@ namespace Z80
 
         private void RepeatBlockInstruction()
         {
-            this.DecrementPC();
+            this.PC.Decrement();
             this.MEMPTR.Assign(this.PC);
-            this.DecrementPC();
+            this.PC.Decrement();
             this.AdjustXY(this.PC.High);
             this.Tick(5);
         }