actually save and restore boot slot

2025-01-26 23:30:47 +00:00 · 2019-04-17 15:24:32 -04:00 · 2019-04-17 15:24:32 -04:00 · fce2a8b1ae
commit fce2a8b1ae
parent 063f4e16be
1 changed files with 4 additions and 3 deletions
--- a/src/patchers/choplifter.a
+++ b/src/patchers/choplifter.a
@ -356,10 +356,10 @@ ReadChoplifter
         lda   $c054
         lda   $c052
         lda   $c050
+         txa
         ldx   #$43
         txs
-         lda   $2B
-         pha
+         pha              ; save boot slot
         lda   #>(.resume-1)
         pha
         lda   #<(.resume-1)
@ -368,7 +368,7 @@ ReadChoplifter

 .resume
         pla
-         sta   $2b
+         sta   $2b        ; restore boot slot
         ldx   #0
 -        lda   .stager,x
         sta   $500,x
@ -384,6 +384,7 @@ ReadChoplifter
         sty   $807
         ldy   #$60     ; rts
         sty   $84c
+         ldx   $2b      ; SD requires X=boot slot x16
         jsr   .callSD  ; including original $8xx to $7xx
         asl   $807     ; 4xx, second table
         jmp   $500