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dos33fsprogs/music/zero_wing/zw.s
Vince Weaver 900a77463b zero_wing: music sorta going
2023-01-17 00:44:24 -05:00

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; Zero Wing Into
;
; by deater (Vince Weaver) <vince@deater.net>
.include "zp.inc"
.include "hardware.inc"
.include "qload.inc"
.include "music.inc"
zw_start:
;=====================
; initializations
;=====================
;=====================
; detect model
;=====================
jsr detect_appleii_model
;=====================
; Machine workarounds
;=====================
; mostly IIgs
; thanks to 4am for this code from total replay
lda ROM_MACHINEID
cmp #$06
bne not_a_iigs
sec
jsr $FE1F ; check for IIgs
bcs not_a_iigs
; gr/text page2 handling broken on early IIgs models
; this enables the workaround
jsr ROM_TEXT2COPY ; set alternate display mode on IIgs
cli ; enable VBL interrupts
; also set background color to black instead of blue
lda NEWVIDEO
and #%00011111 ; bit 7 = 0 -> IIgs Apple II-compat video modes
; bit 6 = 0 -> IIgs 128K memory map same as IIe
; bit 5 = 0 -> IIgs DHGR is color, not mono
; bits 0-4 unchanged
sta NEWVIDEO
lda #$F0
sta TBCOLOR ; white text on black background
lda #$00
sta CLOCKCTL ; black border
sta CLOCKCTL ; set twice for VidHD
not_a_iigs:
;===================
; restart?
;===================
restart:
lda #0
sta DRAW_PAGE
;===================
; show title screen
;===================
jsr show_title
;===================
; print config
;===================
jsr set_normal
lda #<config_string
sta OUTL
lda #>config_string
sta OUTH
jsr move_and_print
; print detected model
lda APPLEII_MODEL
ora #$80
sta $7d0+8 ; 23,8
; if GS print the extra S
cmp #'G'|$80
bne not_gs
lda #'S'|$80
sta $7d0+9
not_gs:
;=========================================
; detect if we have a language card (64k)
;===================================
; we might want to later load sound high,
; for now always enable sound
lda #0
sta SOUND_STATUS ; clear out, sound enabled
jsr detect_language_card
bcs no_language_card
yes_language_card:
; update status on title screen
lda #'6'|$80
sta $7d0+11 ; 23,11
lda #'4'|$80
sta $7d0+12 ; 23,12
; update sound status
lda SOUND_STATUS
ora #SOUND_IN_LC
sta SOUND_STATUS
; jmp done_language_card
no_language_card:
done_language_card:
;===================================
; Detect Mockingboard
;===================================
; detect mockingboard
jsr mockingboard_detect
bcc mockingboard_notfound
mockingboard_found:
; print detected location
lda #'S'+$80 ; change NO to slot
sta $7d0+30
lda MB_ADDR_H ; $C4 = 4, want $B4 1100 -> 1011
and #$87
ora #$30
sta $7d0+31 ; 23,31
; for now, don't require language card
lda SOUND_STATUS
and #SOUND_IN_LC
beq dont_enable_mc
lda SOUND_STATUS
ora #SOUND_MOCKINGBOARD
sta SOUND_STATUS
;==================================
; load sound into the language card
; into $D000 set 1
;==================================
; read/write RAM, use $d000 bank1
bit $C083
bit $C083
lda #1
sta WHICH_LOAD
jsr load_file
lda #0
sta DONE_PLAYING
lda #1
sta LOOP
; patch mockingboard
jsr mockingboard_patch ; patch to work in slots other than 4?
;=======================
; Set up 50Hz interrupt
;========================
jsr mockingboard_init
jsr mockingboard_setup_interrupt
;============================
; Init the Mockingboard
;============================
jsr reset_ay_both
jsr clear_ay_both
;==================
; init song
;==================
jsr pt3_init_song
;=======================
; start music
;=======================
cli
dont_enable_mc:
mockingboard_notfound:
skip_all_checks:
;=======================
; wait for keypress
;=======================
; jsr wait_until_keypress
lda #25
jsr wait_a_bit
;===================
; Load graphics
;===================
load_loop:
; jsr HGR
bit SET_GR
bit HIRES
bit TEXTGR
bit PAGE0
;=============================
; In AD...
;=============================
jsr clear_bottom
lda #<inad_text
sta OUTL
lda #>inad_text
sta OUTH
jsr move_and_print
jsr wait_until_keypress
;=============================
; War was beginning
;=============================
jsr clear_bottom
lda #<ship_data
sta zx_src_l+1
lda #>ship_data
sta zx_src_h+1
lda #$20
jsr zx02_full_decomp
jsr move_and_print
jsr wait_until_keypress
;=============================
; OPERATOR
;=============================
jsr clear_bottom
lda #<operator_data
sta zx_src_l+1
lda #>operator_data
sta zx_src_h+1
lda #$20
jsr zx02_full_decomp
lda #<operator_text
sta OUTL
lda #>operator_text
sta OUTH
jsr move_and_print
jsr move_and_print
jsr wait_until_keypress
;=============================
; CATS
;=============================
jsr clear_bottom
lda #<cats_data
sta zx_src_l+1
lda #>cats_data
sta zx_src_h+1
lda #$20
jsr zx02_full_decomp
lda #<cats_text
sta OUTL
lda #>cats_text
sta OUTH
jsr move_and_print
jsr wait_until_keypress
;=============================
; CAPTAIN
;=============================
jsr clear_bottom
lda #<captain_data
sta zx_src_l+1
lda #>captain_data
sta zx_src_h+1
lda #$20
jsr zx02_full_decomp
lda #<captain_text
sta OUTL
lda #>captain_text
sta OUTH
jsr move_and_print
jsr wait_until_keypress
jmp load_loop
.align $100
.include "wait_keypress.s"
.include "zx02_optim.s"
; .include "text_print.s"
; .include "gr_offsets.s"
inad_text:
.byte 14,21,"IN A.D. 2101",0
war_text:
.byte 11,21,"WAR WAS BEGINNING.",0
what_text:
.byte 0,21,"CAPTAIN: WHAT HAPPEN ?",0 ; scroll
bomb_text:
.byte 0,21,"MECHANIC: SOMEBODY SET UP US",0
.byte 10,21, "THE BOMB.",0
operator_text:
.byte 0,20,"OPERATOR: WE GET SIGNAL.",0
.byte 1,22, "CAPTAIN: WHAT !",0
main_text:
.byte 0,20,"OPERATOR: MAIN SCREEN TURN ON.",0
you_text:
.byte 0,20,"CAPTAIN: IT'S YOU !!",0
cats_text:
.byte 0,21,"CATS: HOW ARE YOU GENTLEMEN !!",0
base_text:
.byte 0,21,"CATS: ALL YOUR BASE ARE BELONG",0
.byte 6,22, "TO US.",0
destruction_text:
.byte 0,21,"CATS: YOU ARE ON THE WAY TO",0
.byte 6,22, "DESTRUCTION.",0
captain_text:
.byte 0,21,"CAPTAIN: WHAT YOU SAY !!",0
survive_text:
.byte 0,21,"CATS: YOU HAVE NO CHANCE TO",0
.byte 6,22, "SURVIVE MAKE YOUR TIME.",0
ha_text:
.byte 0,21,"CATS: HA HA HA HA ....",0
op_cap_text:
.byte 0,21,"OPERATOR: CAPTAIN !!",0
zig_text:
.byte 0,21,"CAPTAIN: TAKE OFF EVERY 'ZIG'!!",0
doing_text:
.byte 0,21,"CAPTAIN: YOU KNOW WHAT YOU DOING.",0
move_zig_text:
.byte 0,21,"CAPTAIN: MOVE 'ZIG'.",0
justice_text:
.byte 0,21,"CAPTAIN: FOR GREAT JUSTICE.",0
cats_data:
.incbin "graphics/cats.hgr.zx02"
captain_data:
.incbin "graphics/captain.hgr.zx02"
operator_data:
.incbin "graphics/operator.hgr.zx02"
ship_data:
.incbin "graphics/ship.hgr.zx02"
hands_data:
.incbin "graphics/hands.hgr.zx02"
.include "title.s"
config_string:
; 0123456789012345678901234567890123456789
.byte 0,23,"APPLE II?, 48K, MOCKINGBOARD: NO, SSI: N",0
.include "pt3_lib_mockingboard_patch.s"
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