1 files changed, 2 insertions, 0 deletions
diff --git a/spec48.asm b/spec48.asm
index c1cf0f7..ee0a191 100644
--- a/spec48.asm
+++ b/spec48.asm
@@ -33,7 +33,9 @@ ULA	equ	0xfe
 DFILE		equ	16384
 ATTR		equ	22528
 DFILE_END	equ	(ATTR-1)
+ATTR_END	equ	(PRTBUFF-1)
 DFILE_LEN	equ	(ATTR-DFILE)
+ATTR_LEN	equ	(PRTBUFF-DFILE)
 
 ; System variables
 ;