From b48c9172fda1a47c637b602b6babb3a6cf72ec9e Mon Sep 17 00:00:00 2001
From: Peter Ferrie <peter.ferrie@gmail.com>
Date: Wed, 8 Jul 2020 18:39:29 -0700
Subject: [PATCH] try to fix IIc colouring

---
 src/hw.accel.a | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/hw.accel.a b/src/hw.accel.a
index d66fcde1f..d9ccb1d8d 100755
--- a/src/hw.accel.a
+++ b/src/hw.accel.a
@@ -192,6 +192,8 @@ maccheck
          bne   build_setspeed ; always branches
 
 iic
+         lda   #$8D
+         sta   fixiic
          ldx   romid_c
          cpx   #ROMID_CPLUS
          bne   build_addon ; not a //c+, eventually hit Zip
@@ -381,6 +383,8 @@ FASTChip
          lda   #FC_LOCK
          sta   fc_lock
 
+fixiic
+         bit   $C05D     ; fix colouring on IIc (SMC to STA on IIc)
          plp             ; restore interrupt state
          rts
 end_addon