Compatibility issue with Z3PLUS resolved

RobotChase/README.md

@@ -38,6 +38,6 @@ Robot Chase is written in C for the ZXCC compiler which can be found in [z88dk](
 
 Use this command line (tested in Linux) to compile:
 
-    zcc +cpm -lm -lndos -o CHASE.COM chase.c ansi.c
+    zcc +cpm -lm -lndos -O3 -o CHASE.COM chase.c ansi.c
 
 

RobotChase/chase.c

@@ -1,3 +1,5 @@
+#pragma output REGISTER_SP = 0xa000
+
 #include <stdio.h>
 #include <ctype.h>
 #include <stdlib.h>