the instructions added after AEND require ALAST to be used
instead of AEND for the oprange table (and the bad op check in list.c)

Reference: /n/sources/patch/applied/ql-range
Date: Mon Feb 27 10:58:08 CET 2006

--- /sys/src/cmd/ql/l.h	Mon Feb 27 10:57:08 2006
+++ /sys/src/cmd/ql/l.h	Mon Feb 27 10:57:06 2006
@@ -88,7 +88,7 @@
 {
 	Optab*	start;
 	Optab*	stop;
-} oprange[AEND];
+} oprange[ALAST];
 
 enum
 {
--- /sys/src/cmd/ql/list.c	Mon Feb 27 10:57:20 2006
+++ /sys/src/cmd/ql/list.c	Mon Feb 27 10:57:16 2006
@@ -64,7 +64,7 @@
 
 	a = va_arg(fp->args, int);
 	s = "???";
-	if(a >= AXXX && a <= AEND)
+	if(a >= AXXX && a < ALAST)
 		s = anames[a];
 	return fmtstrcpy(fp, s);
 }