set MAX_DRIVE (number of CP/M disks) from 2 to 4

diff --git a/avr/z180-serv.c b/avr/z180-serv.c
index 22dafe10484e6c7f49d4c74e8528a4c94a762599..dfdb022d3fff18eafa1844209fbe2ba16d55b3c9 100644 (file)
--- a/avr/z180-serv.c
+++ b/avr/z180-serv.c
@@ -104,7 +104,7 @@ void do_msg_echo(uint8_t subf, int len, uint8_t * msg)
 
 /* ---------------------------------------------------------------------------*/
 
-#define MAX_DRIVE      2
+#define MAX_DRIVE      4
 #define BLOCK_SIZE     512