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Copy pathcvbasic_epilogue.asm
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cvbasic_epilogue.asm
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;
; CVBasic epilogue (BASIC compiler for Colecovision)
;
; by Oscar Toledo G.
; https://nanochess.org/
;
; Creation date: Feb/27/2024.
; Revision date: Feb/29/2024. Added joystick, keypad, frame, random, and
; read_pointer variables.
; Revision date: Mar/04/2024. Added music player.
; Revision date: Mar/05/2024. Added support for Sega SG1000.
; Revision date: Mar/12/2024. Added support for MSX.
; Revision date: Mar/13/2024. Added Pletter decompressor.
; Revision date: Mar/19/2024. Added support for sprite flicker.
; Revision date: Apr/11/2024. Added support for Super Game Module.
; Revision date: Apr/13/2024. Updates LFSR in interruption handler.
; Revision date: Apr/26/2024. All code moved to cvbasic_prologue.asm so it
; can remain accessible in bank 0 (bank switching).
; Revision date: Aug/02/2024. Added rom_end label for Memotech.
; Revision date: Aug/15/2024. Added support for Tatung Einstein.
; Revision date: Nov/12/2024. Added vdp_status.
; Revision date: Feb/03/2025. Round final ROM size to 8K multiples.
;
rom_end:
; ROM final size rounding
if MSX+COLECO+SG1000+SVI+SORD
TIMES (($+$1FFF)&$1e000)-$ DB $ff
endif
if MEMOTECH+EINSTEIN+NABU
; Align following data to a 256-byte page.
TIMES $100-($&$ff) DB $4f
endif
if PV2000
TIMES $10000-$ DB $ff
endif
if SG1000
forg $7FF0
org $7FF0
db "TMR SEGA"
db 0,0
db 0,0 ; Checksum
db $11,$78 ; Product code
db $00 ; Version
db $4c ; SMS Export + 32KB for checksum
endif
if COLECO+SG1000+MSX+SVI+SORD+PV2000
org BASE_RAM
endif
ram_start:
sprites:
rb 128
sprite_data:
rb 4
frame:
rb 2
read_pointer:
rb 2
cursor:
rb 2
lfsr:
rb 2
mode:
rb 1
flicker:
rb 1
joy1_data:
rb 1
joy2_data:
rb 1
key1_data:
rb 1
key2_data:
rb 1
ntsc:
rb 1
vdp_status:
rb 1
if NABU
nabu_data0: rb 1
nabu_data1: rb 1
nabu_data2: rb 1
endif
if CVBASIC_MUSIC_PLAYER
music_tick: rb 1
music_mode: rb 1
if CVBASIC_BANK_SWITCHING
music_bank: rb 1
endif
music_start: rb 2
music_pointer: rb 2
music_playing: rb 1
music_timing: rb 1
music_note_counter: rb 1
music_instrument_1: rb 1
music_counter_1: rb 1
music_note_1: rb 1
music_instrument_2: rb 1
music_counter_2: rb 1
music_note_2: rb 1
music_instrument_3: rb 1
music_counter_3: rb 1
music_note_3: rb 1
music_counter_4: rb 1
music_drum: rb 1
audio_freq1: rb 2
audio_freq2: rb 2
audio_freq3: rb 2
audio_noise: rb 1
audio_mix: rb 1
audio_vol1: rb 1
audio_vol2: rb 1
audio_vol3: rb 1
audio_control: rb 1
audio_vol4hw: rb 1
endif
if SGM
org $2000 ; Start for variables.
endif