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fix Star Maze on the IIc+

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This commit is contained in:
Peter Ferrie 2025-02-26 21:24:27 -08:00
parent 9f790fb86d
commit c273cc641f
2 changed files with 38 additions and 1 deletions
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20
src/demo/star.maze.a
View File

@ -13,6 +13,10 @@
+LOAD_FILE_KEEP_DIR star_maze, star_maze_dir_e-star_maze_dir_b
+READ_ROM_NO_WRITE
lda #$E2
sta $5F07
sta $5F0D
lda #$60
sta $21FD
jsr $2000 ; decompress
@ -34,10 +38,18 @@
stx $7BD5
stx $984B
lda #$D3
sta $7E52
dec $7E53
ldx #(patch_e-patch_b)-1
- lda patch_b, x
sta $7ED9, x
dex
bpl -
jsr $7F8B ; swap screen holes
+DISABLE_ACCEL
jsr $7F8B ; swap screen holes
lda $c082 ; maybe STA doesn't work reliably?
jmp $79D3
callback
@ -48,6 +60,12 @@ callback
counter !byte 5
patch_b +READ_ROM_NO_WRITE
lda #$2C
sta $7ED6
rts
patch_e
star_maze
!byte star_maze_e-star_maze_b
star_maze_b

19
src/prelaunch/star.maze.a
View File

@ -9,12 +9,25 @@
+ENABLE_ACCEL
lda #$E2
sta $5F07
sta $5F0D
lda #$60
sta $21FD
jsr $2000 ; decompress
sta $7A07
sty $7A08 ; reset vector
lda #$D3
sta $7E52
dec $7E53
ldx #(patch_e-patch_b)-1
- lda patch_b, x
sta $7ED9, x
dex
bpl -
+GET_MACHINE_STATUS
and #CHEATS_ENABLED
beq +
@ -26,6 +39,12 @@
jsr $7F8B ; swap screen holes
jmp $79D3
patch_b +READ_ROM_NO_WRITE
lda #$2C
sta $7ED6
rts
patch_e
!if * > PrelaunchMax {
!error "code is too large, ends at ", *
}