From e8c201a05d2ce6a8ca693b1b1d1cefe5737c7688 Mon Sep 17 00:00:00 2001
From: Michael Pavone <pavone@retrodev.com>
Date: Mon, 4 Feb 2019 22:02:59 -0800
Subject: Fixed flag calculation in dec (hl) in new Z80 core

---
 z80.cpu | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/z80.cpu b/z80.cpu
index ba3b214..eed8cdc 100644
--- a/z80.cpu
+++ b/z80.cpu
@@ -1367,10 +1367,14 @@ fd 00101101 dec_iyl
 	or tmp iy iy
 	
 00110101 dec_hl
+	local tmp 8
 	z80_fetch_hl
-	#TODO: fix size
-	sub 1 scratch1 scratch1
+	#TODO: Either make DSL compiler smart enough to optimize these unnecessary moves out
+	#or add some syntax to force a certain size on an operation so they are unnecessary
+	mov scratch1 tmp
+	sub 1 tmp tmp
 	update_flags SZYHVXN1
+	mov tmp scratch1
 	z80_store_hl
 	
 dd 00110101 dec_ixd
-- 
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