1 files changed, 8 insertions, 0 deletions
diff --git a/bank3.s b/bank3.s
index 950b6a0..c39dd28 100644
--- a/bank3.s
+++ b/bank3.s
@@ -1,9 +1,17 @@
 
  .include "atari.inc"
 
+ ; where the font lives. Must agree with bank7.s.
 font = $9c00
 
  .org $8000
  .incbin "splitrom.raw.3"
+
+ .if * > font
+  .fatal "bank7 code too large"
+ .else
+  .out .sprintf("=> %d bytes free in bank 3", font - *)
+ .endif
+
  .res font - *, $ff
  .incbin "taifont"