From 88d4ab5126e4981cf129f3bba0a14fef43baddae Mon Sep 17 00:00:00 2001
From: Adrian Conlon <adrian.conlon@gmail.com>
Date: Sun, 3 May 2026 11:27:14 +0100
Subject: [PATCH] Fix final 4 opcodes for 100% harte singlestep test
 compatibility.  hurrah!

---
 Z80/Z80.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Z80/Z80.cs b/Z80/Z80.cs
index a315a29..f9e410b 100644
--- a/Z80/Z80.cs
+++ b/Z80/Z80.cs
@@ -2152,7 +2152,8 @@ namespace Z80
             }
             else
             {
-                this.AdjustParity((byte)(this.B & (byte)Mask.Three));
+                var parity = (this.Parity() >> 2) ^ (EvenParity((byte)(this.B & (byte)Mask.Three)) ? 1 : 0) ^ 1;
+                this.SetBit(StatusBits.PF, parity != 0);
             }
         }