From c3e8bc7106847563baf3b792239a5cb2453fbd47 Mon Sep 17 00:00:00 2001
From: Peter Ferrie <peter.ferrie@gmail.com>
Date: Thu, 26 Jan 2017 22:30:39 -0800
Subject: [PATCH] support Dragon's Keep (sierra) variant

---
 src/patchers/sierra.a | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/patchers/sierra.a b/src/patchers/sierra.a
index 97fb188..ca465c4 100755
--- a/src/patchers/sierra.a
+++ b/src/patchers/sierra.a
@@ -107,6 +107,18 @@ _sierra
          ldy   #$01
          jsr   modify
          !byte $60
++        ldy   #17
+         jsr   SearchTrack
+         !byte $48,$8A,$48,$98,$48,$20,$3D,$9B,$68,$A8,$68,$AA,$68,$28,$6C,$36,$00
+         bcs   +
+         inx
+         inx
+         inx
+         inx
+         inx
+         ldy   #$01
+         jsr   modify
+         !byte $2C
 +        jmp   .exit
 .foundsierra
          !byte $00