diff options
| author | Alexey 'Cluster' Avdyukhin <clusterrr@clusterrr.com> | 2021-01-05 10:08:19 +0300 |
|---|---|---|
| committer | Alexey 'Cluster' Avdyukhin <clusterrr@clusterrr.com> | 2021-01-05 10:31:56 +0300 |
| commit | 6629bbd2125d5488ae83b6aa21c231a2a51353e2 (patch) | |
| tree | 649b88208d1b5c94d2e6502d4bfeebdc8aea3f54 /saves.asm | |
| parent | edbd71ea97a50f43a4c49d69a5c034894bc84d86 (diff) | |
Using reserved register names, refactoring
Diffstat (limited to 'saves.asm')
| -rw-r--r-- | saves.asm | 60 |
1 files changed, 29 insertions, 31 deletions
@@ -25,10 +25,10 @@ save_state: sta SRAM_LAST_STARTED_LINE+1 ; storing save ID of last started game lda <LAST_STARTED_SAVE - sta SRAM_LAST_STARTED_SAVE + sta SRAM_LAST_STARTED_SAVE jsr disable_prg_ram rts - + load_state: ; loading saved state jsr enable_prg_ram @@ -53,7 +53,7 @@ load_state: sec sbc #GAMES_COUNT & $FF lda <SELECTED_GAME+1 - sbc #GAMES_COUNT>>8 + sbc #GAMES_COUNT>>8 bcs .ovf ; loading scrolling state lda SRAM_LAST_STARTED_LINE @@ -74,7 +74,7 @@ load_state: .end: jsr disable_prg_ram rts - + load_save: ; loading battery backed save for game if any pha @@ -82,14 +82,13 @@ load_save: pha txa pha - + lda <LOADER_GAME_SAVE beq .done ; game has not battery backed saves ; superbank number sta <LOADER_GAME_SAVE_SUPERBANK dec <LOADER_GAME_SAVE_SUPERBANK lda <LOADER_GAME_SAVE_BANK - ; в регистр jsr select_prg_ram_bank lda #0 sta <COPY_SOURCE_ADDR @@ -108,8 +107,8 @@ load_save: tay pla rts - - ; всё то же самое, только в обратную сторону + + ; saving battery backed save for game if any save_save: pha tya @@ -117,12 +116,11 @@ save_save: txa pha lda <LOADER_GAME_SAVE - beq .done ; если игра не использует сейвы, то всё - ; номер супербанка + beq .done ; game has not battery backed saves + ; superbank number sta <LOADER_GAME_SAVE_SUPERBANK dec <LOADER_GAME_SAVE_SUPERBANK lda <LOADER_GAME_SAVE_BANK - ; в регистр jsr select_prg_ram_bank lda #0 sta <COPY_SOURCE_ADDR @@ -146,54 +144,54 @@ save_all_saves: ldx <LAST_STARTED_SAVE bne .there_is_save jmp .done -.there_is_save: +.there_is_save: jsr saving_warning_show ldx <LAST_STARTED_SAVE dex txa - and #%11111100 ; номер первого сохранения в группе - ora #1 ; плюс один + and #%11111100 ; ID of first save in group + ora #1 ; plus one sta <LOADER_GAME_SAVE lda #0 - sta <LOADER_GAME_SAVE_BANK - ; копируем три банка + sta <LOADER_GAME_SAVE_BANK + ; copy three banks ldx #3 .load_all_saves: - ; если это и есть последняя сохранёнка, то пропускаем + ; skip if it's last save lda <LOADER_GAME_SAVE cmp <LAST_STARTED_SAVE bne .load_all_saves_skip1 - inc <LOADER_GAME_SAVE + inc <LOADER_GAME_SAVE .load_all_saves_skip1: - ; если это второй банк, то тоже не трогаем + ; skip if it's second bank lda <LOADER_GAME_SAVE_BANK cmp #2 bne .load_all_saves_skip2 inc <LOADER_GAME_SAVE_BANK .load_all_saves_skip2: - ; запоминаем в массив - где какая сохранёнка + ; store save locations to array lda <LOADER_GAME_SAVE ldy <LOADER_GAME_SAVE_BANK sta SAVES, y jsr load_save - inc <LOADER_GAME_SAVE - inc <LOADER_GAME_SAVE_BANK + inc <LOADER_GAME_SAVE + inc <LOADER_GAME_SAVE_BANK dex - bne .load_all_saves - ; а во втором банке у нас всегда последняя сохранёнка + bne .load_all_saves + ; second bank always contains last save ldx <LAST_STARTED_SAVE txa ldy #2 sta SAVES, y - dex ; выслисляем начало сектора + dex ; calculating sector start txa ora #%00000011 - sta <LOADER_GAME_SAVE_SUPERBANK ; номер супербанка + sta <LOADER_GAME_SAVE_SUPERBANK ; superbank number lda #0 - jsr select_prg_ram_bank ; нулевой банк - ; стираем сектор + jsr select_prg_ram_bank ; zero bank + ; erasing sector jsr sector_erase - ; а теперь записываем четыре сейва назад + ; writing four saves back to flash ldy #0 .write: lda SAVES, y @@ -205,10 +203,10 @@ save_all_saves: bne .write .done: lda #0 - sta <LAST_STARTED_SAVE ; никаких сохранёнок, всё, но это надо будет занести в SRAM + sta <LAST_STARTED_SAVE ; no more last started save ID jsr save_state jsr saving_warning_hide rts saves_signature: - .db 'C','O','O','L','S','A','V','E' + .db 'C','O','O','L','S','A','V','E' |