From 15faf75456d86dff2cf2e51961871e9c808216ea Mon Sep 17 00:00:00 2001
From: Kevin Bracey <kbracey@gitlab.riscosopen.org>
Date: Mon, 23 Oct 2000 10:22:11 +0000
Subject: [PATCH] More touchscreen tuning. Screen memory increase crash fixed.
---
s/ARM600 | 3 +++
1 file changed, 3 insertions(+)
diff --git a/s/ARM600 b/s/ARM600
index 1f18f8d0..851dffe0 100644
--- a/s/ARM600
+++ b/s/ARM600
@@ -297,7 +297,10 @@ BangCam ROUT
ADD r6, r6, r4, LSR #12 ; put back the ones which were too many
ADD r0, r0, r6, LSL #12 ; move on address by the number of pages left
BangCamAltEntry
+ LDR r4, =DuffEntry ; check for requests to map a page to nowhere
ADR r1, PPLTrans
+ TEQ r4, r3 ; don't actually map anything to nowhere
+ MOVEQ pc, lr
AND r4, r11, #3 ; first use PPL bits
LDR r1, [r1, r4, LSL #2] ; get PPL bits and SmallPage indicator
--
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