From efcdc09b1c58be04a53fa84ea34981d4231c1a78 Mon Sep 17 00:00:00 2001
From: Michael Pavone <pavone@retrodev.com>
Date: Tue, 28 Jan 2014 08:36:06 -0800
Subject: Add 3 wait states to Z80 access to bank area since that seems to be
 roughly the average in normal usage

---
 zruntime.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/zruntime.S b/zruntime.S
index a4a53ef..122f058 100644
--- a/zruntime.S
+++ b/zruntime.S
@@ -107,6 +107,8 @@ z80_read_ram:
 	mov (%r11, %r13), %r13b
 	ret
 z80_read_bank:
+	/* approximation of wait states for 68K bus access */
+	add $3, %ebp
 	and $0x7FFF, %r13
 	cmp $0, %r12
 	je slow_bank_read
@@ -158,6 +160,8 @@ not_code:
 	ret
 z80_write_bank:
 slow_bank_write:
+	/* approximation of wait states for 68K bus access */
+	add $3, %ebp
 	/* TODO: Call into C to implement this */
 	ret
 z80_write_ym2612:
-- 
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