278 lines
4.4 KiB
ArmAsm
278 lines
4.4 KiB
ArmAsm
; Duke Title
|
|
|
|
; loads a HGR version of the title
|
|
|
|
; by deater (Vince Weaver) <vince@deater.net>
|
|
|
|
; Zero Page
|
|
.include "zp.inc"
|
|
.include "hardware.inc"
|
|
.include "common_defines.inc"
|
|
|
|
duke_title_start:
|
|
;===================
|
|
; init screen
|
|
;===================
|
|
|
|
jsr TEXT
|
|
jsr HOME
|
|
bit KEYRESET
|
|
|
|
bit SET_GR
|
|
bit PAGE0
|
|
bit HIRES
|
|
bit FULLGR
|
|
|
|
;===================
|
|
; machine workarounds
|
|
;===================
|
|
; mostly IIgs
|
|
;===================
|
|
; thanks to 4am who provided 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:
|
|
|
|
;===================
|
|
; Load hires graphics
|
|
;===================
|
|
reload_everything:
|
|
|
|
lda #<new_title
|
|
sta getsrc_smc+1 ; LZSA_SRC_LO
|
|
lda #>new_title
|
|
sta getsrc_smc+2 ; LZSA_SRC_HI
|
|
|
|
lda #$20
|
|
|
|
jsr decompress_lzsa2_fast
|
|
|
|
;===================================
|
|
; detect if we have a language card
|
|
; and load sound into it if possible
|
|
;===================================
|
|
|
|
; lda #0
|
|
; sta SOUND_STATUS ; clear out, sound enabled
|
|
|
|
; jsr detect_language_card
|
|
; bcs no_language_card
|
|
|
|
; update sound status
|
|
; lda SOUND_STATUS
|
|
; ora #SOUND_IN_LC
|
|
; sta SOUND_STATUS
|
|
|
|
; load sounds into LC
|
|
|
|
; read ram, write ram, use $d000 bank1
|
|
; bit $C08B
|
|
; bit $C08B
|
|
|
|
; lda #<linking_noise_compressed
|
|
; sta getsrc_smc+1
|
|
; lda #>linking_noise_compressed
|
|
; sta getsrc_smc+2
|
|
|
|
; lda #$D0 ; decompress to $D000
|
|
|
|
; jsr decompress_lzsa2_fast
|
|
|
|
;blah:
|
|
|
|
; read rom, nowrite, use $d000 bank1
|
|
; bit $C08A
|
|
|
|
no_language_card:
|
|
|
|
;===================================
|
|
; Setup Mockingboard
|
|
;===================================
|
|
; lda #0
|
|
; sta DONE_PLAYING
|
|
; sta LOOP
|
|
|
|
; detect mockingboard
|
|
; jsr mockingboard_detect
|
|
|
|
; bcc mockingboard_notfound
|
|
|
|
mockingboard_found:
|
|
;; jsr mockingboard_patch ; patch to work in slots other than 4?
|
|
|
|
; lda SOUND_STATUS
|
|
; ora #SOUND_MOCKINGBOARD
|
|
; sta SOUND_STATUS
|
|
|
|
;=======================
|
|
; 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
|
|
|
|
; jmp done_setup_sound
|
|
|
|
|
|
mockingboard_notfound:
|
|
|
|
|
|
done_setup_sound:
|
|
|
|
|
|
|
|
;===================================
|
|
; Do Intro Sequence
|
|
;===================================
|
|
|
|
; wait a bit at LOAD screen
|
|
|
|
lda #100
|
|
jsr wait_a_bit
|
|
|
|
|
|
done_intro:
|
|
|
|
; restore to full screen (no text)
|
|
|
|
bit FULLGR
|
|
bit LORES
|
|
|
|
;============================
|
|
; init vars
|
|
|
|
jsr init_vars
|
|
|
|
|
|
|
|
;============================
|
|
; set up initial location
|
|
|
|
lda #LOAD_DUKE1
|
|
sta WHICH_LOAD ; start at first level
|
|
|
|
rts
|
|
|
|
|
|
;==========================
|
|
; includes
|
|
;==========================
|
|
|
|
.include "gr_pageflip.s"
|
|
.include "gr_copy.s"
|
|
; .include "wait_a_bit.s"
|
|
.include "gr_offsets.s"
|
|
.include "decompress_fast_v2.s"
|
|
|
|
.include "print_help.s"
|
|
.include "gr_fast_clear.s"
|
|
.include "text_print.s"
|
|
|
|
.include "init_vars.s"
|
|
; .include "graphics_title/title_graphics.inc"
|
|
; .include "lc_detect.s"
|
|
|
|
|
|
; pt3 player
|
|
; .include "pt3_lib_core.s"
|
|
; .include "pt3_lib_init.s"
|
|
; .include "interrupt_handler.s"
|
|
; .include "pt3_lib_mockingboard_detect.s"
|
|
; .include "pt3_lib_mockingboard_setup.s"
|
|
|
|
new_title:
|
|
.incbin "title/new_title.lzsa"
|
|
|
|
|
|
|
|
;====================================
|
|
; wait for keypress or a few seconds
|
|
;====================================
|
|
|
|
wait_a_bit:
|
|
|
|
bit KEYRESET
|
|
tax
|
|
|
|
keyloop:
|
|
lda #200 ; delay a bit
|
|
jsr WAIT
|
|
|
|
lda KEYPRESS
|
|
bmi done_keyloop
|
|
|
|
; bmi keypress_exit
|
|
|
|
dex
|
|
bne keyloop
|
|
|
|
done_keyloop:
|
|
bit KEYRESET
|
|
|
|
cmp #'H'|$80
|
|
bne really_done_keyloop
|
|
|
|
bit SET_TEXT
|
|
jsr print_help
|
|
bit SET_GR
|
|
bit PAGE0
|
|
|
|
ldx #100
|
|
|
|
jmp keyloop
|
|
|
|
really_done_keyloop:
|
|
|
|
|
|
rts
|
|
|
|
|
|
|
|
|
|
|
|
|
|
;PT3_LOC = theme_music
|
|
|
|
;.align $100
|
|
;theme_music:
|
|
;.incbin "audio/theme.pt3"
|
|
|