200 lines
2.9 KiB
ArmAsm
200 lines
2.9 KiB
ArmAsm
; startup for disk2
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;
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; by deater (Vince Weaver) <vince@deater.net>
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;.include "zp.inc"
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;.include "hardware.inc"
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;.include "qload2.inc"
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;.include "music.inc"
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second_start:
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;=====================
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; initializations
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;=====================
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jsr hardware_detect
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jsr hgr_make_tables
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;===================
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; restart?
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;===================
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restart:
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lda #0
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sta DRAW_PAGE
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;==================================
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; load sound into the language card
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; into $D000 set 1
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;==================================
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; read/write RAM, use $d000 bank1
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bit $C083
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bit $C083
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lda #0 ; load music
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sta WHICH_LOAD
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jsr load_file
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lda #0
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sta DONE_PLAYING
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lda #1
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sta LOOP
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; patch mockingboard
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jsr mockingboard_patch ; patch to work in slots other than 4?
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;=======================
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; Set up 50Hz interrupt
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;========================
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jsr mockingboard_init
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jsr mockingboard_setup_interrupt
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;============================
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; Init the Mockingboard
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;============================
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jsr reset_ay_both
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jsr clear_ay_both
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;==================
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; init song
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;==================
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jsr pt3_init_song
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dont_enable_mc:
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skip_all_checks:
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;===================
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; Load graphics
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;===================
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load_loop:
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bit SET_GR
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bit FULLGR
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bit PAGE1
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lda #0
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sta clear_all_color+1
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sta DRAW_PAGE
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jsr clear_all
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lda #4
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sta DRAW_PAGE
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jsr clear_all
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lda #0
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sta DRAW_PAGE
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;=======================
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; load, copy to AUXMEM
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;=======================
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sta $C008 ; use MAIN zero-page/stack/language card
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;====================
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; load nuts to $6000
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lda #3 ; NUTS
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sta WHICH_LOAD
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jsr load_file
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;======================
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; copy NUTS to AUX $2000
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lda #$20 ; AUX dest $4000
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ldy #$60 ; MAIN src $6000
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ldx #32 ; 64 pages
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jsr copy_main_aux
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;=====================
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; load CREDITS to $6000
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lda #2 ; CREDITS
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sta WHICH_LOAD
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jsr load_file
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;===========================
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; copy CREDITS to AUX $6000
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lda #$60 ; AUX dest $60
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ldy #$60 ; MAIN src
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ldx #64 ; 64 pages
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jsr copy_main_aux
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;=====================
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; clear both pages
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; lda #0
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; jsr hgr_page1_clearscreen
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;=====================
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; load THREED to $2000
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lda #1 ; THREED
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sta WHICH_LOAD
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jsr load_file
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;=======================
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; run THREED
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;=======================
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cli ; start music
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jsr $2000
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;=======================
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; run NUTS
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;============================================
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; copy NUTS from AUX $2000 to MAIN $8000
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lda #$20 ; AUX src $2000
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ldy #$80 ; MAIN dest $8000
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ldx #32 ; 32 pages
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jsr copy_aux_main
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; run nuts
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jsr $8000
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;=======================
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; run CREDITS
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;============================================
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; copy CREDITS from AUX $6000 to MAIN $8000
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lda #$60 ; AUX src $6000
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ldy #$80 ; MAIN dest $8000
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ldx #64 ; 64 pages
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jsr copy_aux_main
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; run credits
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jsr $8000
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; TODO: RR?
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forever:
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jmp forever
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.include "pt3_lib_mockingboard_patch.s"
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.include "hardware_detect.s"
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.include "hgr_clear_screen.s"
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