Merge pull request #13 from peterferrie/master

disable DMM ROM check
2025-01-14 07:29:50 +00:00 · 2019-03-14 12:08:19 -04:00 · 2019-03-14 12:08:19 -04:00 · a882cbc97a
commit a882cbc97a
parent 96bf9e9b0b 578ba3c915
1 changed files with 13 additions and 1 deletions
--- a/src/idbroderbund.a
+++ b/src/idbroderbund.a
@ -221,10 +221,22 @@ IDBroderbund
         sta   @restore2+1
         lda   #$60
         sta   $0461
-         sta   $8B5D
         lda   #$00
         sta   $0462
         sta   $0463
+; distinguish further between variants
+; and disable a secondary protection if present
+         lda   $8BE3
+         cmp   #$30
+         bne   @DMMnewer
+         lda   #$2C
+         sta   $8BE2
+         bne   @restore2
+
+@DMMnewer
+         lda   #$60
+         sta   $8B5D
+
@restore2
         lda   #$FD                  ; SMC
         rts