diff options
| author | Alexey 'Cluster' Avdyukhin <clusterrr@clusterrr.com> | 2020-09-25 09:38:22 +0300 |
|---|---|---|
| committer | Alexey 'Cluster' Avdyukhin <clusterrr@clusterrr.com> | 2020-09-25 09:38:22 +0300 |
| commit | ba93527ee6fed07ca966a4508c520c87454425ee (patch) | |
| tree | 3720c9867c1a0b1aff9fd802ea8f3c27415337de /preloader.asm | |
| parent | 176a422a61e5b0f2b648f656ea87de0db55734bf (diff) | |
Incompatible console message fixes
Diffstat (limited to 'preloader.asm')
| -rw-r--r-- | preloader.asm | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/preloader.asm b/preloader.asm index 06c9ff5..e758bd9 100644 --- a/preloader.asm +++ b/preloader.asm @@ -31,10 +31,14 @@ start_game: beq compatible_console ; not compatible console! + ; error sound + jsr error_sound ; save state, without game save lda #0 sta <LAST_STARTED_SAVE jsr save_state + ; print error message + jsr clear_screen jsr load_text_palette lda #$21 sta $2006 @@ -53,11 +57,18 @@ start_game: sta $2000 lda #%00001010 sta $2001 - jsr waitblank_simple + ; wait until all buttons released .incompatible_print_wait_no_button: jsr read_controller lda <BUTTONS bne .incompatible_print_wait_no_button + ; tiny delay + ldx #15 +.incompatible_wait: + jsr waitblank_simple + dex + bne .incompatible_wait + ; wait until any button pressed .incompatible_print_wait_button: jsr read_controller lda <BUTTONS |