From: ian <ian>
Date: Wed, 12 Jan 2005 00:20:15 +0000 (+0000)
Subject: speed28 was broken
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=commitdiff_plain;h=06bea4727f09cd826cef3177d9df9daa89fb2731;p=trains.git

speed28 was broken
---

diff --git a/hostside/nmra-packets.h b/hostside/nmra-packets.h
index 6686819..c0dfb07 100644
--- a/hostside/nmra-packets.h
+++ b/hostside/nmra-packets.h
@@ -5,15 +5,16 @@
 NMRA(speed28, Aint(addr,0) Aint(speed,1) Aint(reverse,2), {
   /* 0<=speed<=28 or <=126; reverse: 0 forwards, non-0 backwards */
   int adj;
+  Byte cmd;
   ADDR;
   nmra_errchk(cn, speed, speed>=0 && speed<=28);
-  *c++= 0x40 | (reverse ? 0 : 0x20);
+  cmd= 0x40 | (reverse ? 0 : 0x20);
   if (speed) {
     adj= speed + 3;
-    *c |= adj & 1 ? 0x10 : 0;
-    *c |= adj >> 1;
+    cmd |= adj & 1 ? 0x10 : 0;
+    cmd |= adj >> 1;
   }
-  c++;
+  *c++= cmd;
 })
 NMRA(estop1, Aint(addr,0), {
   /* Baseline Speed and direction Forwards E-Stop(I) S9.2 B table l.56 */