818 lines
18 KiB
NASM
818 lines
18 KiB
NASM
;============================================================================
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; Includes
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;============================================================================
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;== Include MemoryMap, Vector Table, and HeaderInfo ==
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.INCLUDE "header.inc"
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.SECTION "MAIN"
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.define dp $0000
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.define sineswap $0002
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.define sine_offset $0003
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.define scrollval $0005
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.define colbar_offset_1 $0006
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.define colbar_offset_2 $0007
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.define colbar_offset_3 $0008
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.define colbar_offset_table $0010
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.define colbar_color_table $0020
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.define colbar_count $0030
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.define colbar_color $0032
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.define colbar_color_ptr $0034
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.define hdma_table0 $0050
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.define hdma_table1 $0200
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.define plane_0 $0800
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.define plane_1 $0c00
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.define char_data $2000
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.define logo_data $2200
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init:
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sei ;stop interrupts
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phk ;get the current bank and store on stack
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plb ;get value off stack and make it the current
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;programming bank
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clc ;clear carry bit
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xce ;native 16 bit mode (no 6502 emulation!)
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jsr setup
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rep #$30 ; x,y,a fixed -> 16 bit mode
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sep #$20 ; accumulator -> 8 bit mode
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lda #(dp+0) ;load direct page
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tcd ;store & and assign
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lda #(plane_0>>8) ; screen map data @ vram location $1000
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sta $2107 ; plane 0 map location register
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lda #(plane_1>>8) ; screen map data @ vram location $1000
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sta $2108 ; plane 1 map location register
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lda #$22 ; plane 0 and plane 1 tile graphics @ $2000
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sta $210b ; plane 0 tile graphics register
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lda #$00 ; mode 0 value / tile mode
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sta $2105 ; graphics mode register
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lda #%00000011 ;
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sta $212c ; plane enable register
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lda #$01
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sta $4200 ; enable joypad read (bit one)
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lda #$00
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sta $2121
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ldx #$0000
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col_loop:
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lda #$ff
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sta $2122
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lda #$7f
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sta $2122
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inx
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cpx #$00ff
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bne col_loop
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ldx.w #char_data ; assign vram location
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stx $2116 ; writing to $2118/9 will store data here!
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ldx #$0000
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copychar:
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lda.w charset,x ; get character set data<74>(font data)
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sta $2118 ; store bitplane 1
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stz $2119 ; clear bitplane 2 and increase vram address
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inx
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cpx #$0200 ; transfer $0200 bytes
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bne copychar
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ldx #$0000
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copy_logo: ; copy tile data to vram
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lda.w optixx_logo,x ; using continuos tile vram pointer
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sta $2118 ; charset @ $2000
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stz $2119 ; logo @ $2200
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inx
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cpx #$0500
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bne copy_logo
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init_plane_0:
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ldx.w #plane_0 ; assign vram location $1000 to $2116/7
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stx $2116
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ldx #$0000
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init_plane_0_loop:
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lda.w text_0,x ; get ascii text data
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and #$3f ; we only want the first 64 characters
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; convert ascii to c64 screen code
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sta $2118
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stz $2119 ; clear unwanted bits, no h/v flipping
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inx
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cpx #$0400 ; transfer entire screen
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; $20*$20=$0400 (1024 bytes)
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bne init_plane_0_loop
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init_plane_1: ; write optixx logo tiles
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ldx.w #plane_1
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stx $2116
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ldx #$0000
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lda #$0040
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init_plane_1_clear_1: ; 0x0140 tiles clear
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sta $2118
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stz $2119
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inx
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cpx #$0140
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bne init_plane_1_clear_1
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ldx #$0000
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init_plane_1_loop_1:
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ina
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sta $2118
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stz $2119
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inx
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cpx #$00a0 ; 0x00a0 logo tiles
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bne init_plane_1_loop_1
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ldx #$0000
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lda #$0040
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init_plane_1_clear_2:
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sta $2118
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stz $2119
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inx
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cpx #$01a0 ; 0x01a0 tiles clear
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bne init_plane_1_clear_2
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ldx #$0000
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init_screen:
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lda #$0f ; screen enabled, full brightness
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sta $2100 ;
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cli ; clear interrupt bit
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init_scroll:
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lda #$00
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sta.w scrollval
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init_sineoffset:
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lda #$00
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sta.w sine_offset
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lda #$00
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sta sineswap
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ldx.w #colbar_1_color_values
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stx colbar_color_table
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ldx.w #colbar_2_color_values
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stx colbar_color_table + $02
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ldx.w #colbar_3_color_values
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stx colbar_color_table + $04
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ldx.w #colbar_1_color_values
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stx colbar_color_table + $06
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ldx.w #colbar_2_color_values
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stx colbar_color_table + $08
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ldx.w #colbar_3_color_values
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stx colbar_color_table + $0a
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lda #$00
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sta colbar_offset_table
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lda #$15
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sta colbar_offset_table + $01
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lda #$25
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sta colbar_offset_table + $02
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lda #$35
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sta colbar_offset_table + $03
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lda #$45
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sta colbar_offset_table + $04
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lda #$55
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sta colbar_offset_table + $05
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call_hmda_setup:
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jsr init_hdma_table0
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jsr init_hdma_table1
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jmp intro
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main:
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jsr wait_vbl
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jsr sine_plane
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jsr sine_colbar
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jsr scroll_plane
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jsr joypad
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jmp main
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; test vertical interrupt
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wait_vbl:
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lda $4210 ; check for vertical blank
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and #$80
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beq wait_vbl
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rts
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; joypad poll
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joypad:
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lda $4212 ; is joypad ready to be read?
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and #$0001
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bne joypad ; no? go back until it is!
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lda $4219 ; read joypad high byte
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and #$10 ; leave only "start" bit
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bne reset ; "start" pressed? go to reset
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rts ; if not then jump back to loop
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reset:
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sep #$30
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lda #$00
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pha ; push #$00 to stack
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plb ; pull #$00 from stack and make it the
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; the programming bank
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jmp init ; jump long to $008000
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; gfx routine
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; intro stuff
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intro:
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rep #$30
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sep #$20
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ldx #$f2
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mosaic_l:
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jsr wait_vbl
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jsr wait_vbl
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txa
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sta $2106
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sbc #$10
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tax
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cmp #$02
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bne mosaic_l
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stz $2106
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fade:
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ldy #$0f
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fade_dark:
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jsr wait_vbl
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tya
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sta $2100
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dey
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cpy #$0000
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bne fade_dark
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ldy #$0000
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fade_light:
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jsr wait_vbl
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tya
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sta $2100
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iny
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cpy #$000f
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bne fade_light
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jmp main
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; scroll loop
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scroll_plane:
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lda.w scrollval
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sta $210e
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stz $210e
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adc #$01
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sta.w scrollval
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cmp #$ff
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beq restore_scroll
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rts
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restore_scroll:
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lda #$00
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sta.w scrollval
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rts
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sine_plane:
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rep #$10
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sep #$20
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lda sine_offset
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ina
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sta sine_offset
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cmp #$ff
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bne sine_plane_c
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lda #$00
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sta sine_offset
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lda sineswap ; check wich sine table ot take
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ina
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sta sineswap
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cmp #$04 ; after 4 loop reset counter
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bne sine_plane_c
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lda #$00
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sta sineswap
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sine_plane_c:
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tay
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ldx #$0000
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sine_plane_l:
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iny
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cpy #$ff
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bne sine_plane_l_c
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lda #$00
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tay
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sine_plane_l_c:
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inx
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lda.w sineswap
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cmp #$02 ; lower 2 use vsine 1
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bmi sine_load_vsine1
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sine_load_vsine2: ; else use vsine 2
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lda.w vsine_2,y
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bra sine_load_done
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sine_load_vsine1:
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lda.w vsine_1,y
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sine_load_done:
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adc #$c8 ; shift logo left
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sta hdma_table0+3,x
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inx
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inx
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cpx #$00c0 ; 64 hdma lines a 3 byte
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bne sine_plane_l
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rep #$30
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sep #$20
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rts
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sine_colbar:
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rep #$10
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sep #$20
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ldx #$00
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sine_colbar_clear:
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stz hdma_table1+1,x
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stz hdma_table1+2,x
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inx
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inx
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inx
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cpx #$012c
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bne sine_colbar_clear
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lda #$00
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sta colbar_count
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ldy #$0000
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sty colbar_color
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sine_colbar_init:
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ldy colbar_color
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ldx colbar_color_table,y
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stx colbar_color_ptr
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lda.w colbar_count
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tay
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lda colbar_offset_table,y
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ina
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sta colbar_offset_table,y
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cmp #$ff ; if end of sine table
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bne sine_colbar_continue
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lda #$00 ; reset table pointer
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sta colbar_offset_table,y
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sine_colbar_continue:
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tay
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lda.w colbarsine_1,y
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tax
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ldy #$0000
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sine_colbar_loop:
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lda (colbar_color_ptr),y
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ora hdma_table1+1,x
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and #$ff
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sta hdma_table1+1,x
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iny
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lda (colbar_color_ptr),y
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ora hdma_table1+2,x
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and #$ff
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sta hdma_table1+2,x
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inx
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inx
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inx
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iny
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;iny
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cpy #$0040 ; 32 colot lines a 2 byte
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bne sine_colbar_loop
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ldy colbar_color
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iny
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iny
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sty colbar_color
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lda.w colbar_count
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ina
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sta.w colbar_count
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cmp #$06
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bne sine_colbar_init
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sine_colbar_end:
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rep #$30
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sep #$20
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rts
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; init hdma list
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init_hdma_table0:
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rep #$10
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sep #$20
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ldy #$0000
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ldx #$0000
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;lda #$00
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;sta sine_offset
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lda #$4c
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sta hdma_table0,x
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inx
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lda #$00
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sta hdma_table0,x
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inx
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sta hdma_table0,x
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inx
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init_hdma_table0_loop:
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lda #$01
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sta hdma_table0,x
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inx
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;lda vsine_1,y
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lda #$00
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sta hdma_table0,x
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inx
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lda #$00
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sta hdma_table0,x
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inx
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iny
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;cpx #$0183 ; (128 + 1) * 3 = 387 = 0x0183
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cpx #$00c3 ; (64 + 1) * 3 = 195 = 0x00c0
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bne init_hdma_table0_loop
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lda #$4c
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sta hdma_table0,x
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inx
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lda #$00
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sta hdma_table0,x
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inx
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sta hdma_table0,x
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inx
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sta hdma_table0,x
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inx
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sta hdma_table0,x
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lda #$02
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sta $4300
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lda #$0f
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sta $4301
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ldx.w #hdma_table0
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;ldx.w #test_hmda_table
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stx $4302
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lda #$00
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sta $4304
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;lda #%00000001
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;sta $420c
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rep #$30
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sep #$20
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rts
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init_hdma_table1:
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;rep #$10
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;sep #$30
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ldx #$0000
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init_hdma_tabel1_copy:
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ldy.w backcolors_color_values,x
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tya
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sta hdma_table1,x
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inx
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cpx #$0295
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bne init_hdma_tabel1_copy
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lda #$00
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sta $4310
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lda #$21
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sta $4311
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ldx.w #backcolors_color_list
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stx $4312
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lda #$00
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sta $4314
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lda #$02
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sta $4320
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lda #$22
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sta $4321
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;ldx.w #backcolors_color_values
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ldx.w #hdma_table1
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stx $4322
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lda #$00
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sta $4324
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lda #%00000111
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sta $420c
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rep #$30
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sep #$20
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rts
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setup:
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sep #$30 ; x,y,a are 8 bit numbers
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lda #$8f ; screen off, full brightness
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sta $2100 ; brightness + screen enable register
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lda #$00 ;
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sta $2101 ; sprite register (size + address in vram)
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lda #$00
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sta $2102 ; sprite registers (address of sprite memory [oam])
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sta $2103 ; "" ""
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lda #$00 ; mode 0
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sta $2105 ; graphic mode register
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lda #$00 ; no planes, no mosaic
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sta $2106 ; mosaic register
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lda #$00 ;
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sta $2107 ; plane 0 map vram location
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lda #$00
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sta $2108 ; plane 1 map vram location
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lda #$00
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sta $2109 ; plane 2 map vram location
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lda #$00
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sta $210a ; plane 3 map vram location
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lda #$00
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sta $210b ; plane 0+1 tile data location
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lda #$00
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sta $210c ; plane 2+3 tile data location
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lda #$00
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sta $210d ; plane 0 scroll x (first 8 bits)
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sta $210d ; plane 0 scroll x (last 3 bits) #$0 - #$07ff
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sta $210e ; plane 0 scroll y (first 8 bits)
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sta $210e ; plane 0 scroll y (last 3 bits) #$0 - #$07ff
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sta $210f ; plane 1 scroll x (first 8 bits)
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sta $210f ; plane 1 scroll x (last 3 bits) #$0 - #$07ff
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sta $2110 ; plane 1 scroll y (first 8 bits)
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sta $2110 ; plane 1 scroll y (last 3 bits) #$0 - #$07ff
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sta $2111 ; plane 2 scroll x (first 8 bits)
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sta $2111 ; plane 2 scroll x (last 3 bits) #$0 - #$07ff
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sta $2112 ; plane 2 scroll y (first 8 bits)
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sta $2112 ; plane 2 scroll y (last 3 bits) #$0 - #$07ff
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sta $2113 ; plane 3 scroll x (first 8 bits)
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sta $2113 ; plane 3 scroll x (last 3 bits) #$0 - #$07ff
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sta $2114 ; plane 3 scroll y (first 8 bits)
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sta $2114 ; plane 3 scroll y (last 3 bits) #$0 - #$07ff
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lda #$80 ; increase vram address after writing to $2119
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sta $2115 ; vram address increment register
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lda #$00
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sta $2116 ; vram address low
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sta $2117 ; vram address high
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sta $211a ; initial mode 7 setting register
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sta $211b ; mode 7 matrix parameter a register (low)
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lda #$01
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sta $211b ; mode 7 matrix parameter a register (high)
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lda #$00
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sta $211c ; mode 7 matrix parameter b register (low)
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sta $211c ; mode 7 matrix parameter b register (high)
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sta $211d ; mode 7 matrix parameter c register (low)
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sta $211d ; mode 7 matrix parameter c register (high)
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sta $211e ; mode 7 matrix parameter d register (low)
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lda #$01
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sta $211e ; mode 7 matrix parameter d register (high)
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lda #$00
|
||
sta $211f ; mode 7 center position x register (low)
|
||
sta $211f ; mode 7 center position x register (high)
|
||
sta $2120 ; mode 7 center position y register (low)
|
||
sta $2120 ; mode 7 center position y register (high)
|
||
sta $2121 ; color number register ($0-ff)
|
||
sta $2123 ; bg1 & bg2 window mask setting register
|
||
sta $2124 ; bg3 & bg4 window mask setting register
|
||
sta $2125 ; obj & color window mask setting register
|
||
sta $2126 ; window 1 left position register
|
||
sta $2127 ; window 2 left position register
|
||
sta $2128 ; window 3 left position register
|
||
sta $2129 ; window 4 left position register
|
||
sta $212a ; bg1, bg2, bg3, bg4 window logic register
|
||
sta $212b ; obj, color window logic register (or,and,xor,xnor)
|
||
lda #$01
|
||
sta $212c ; main screen designation (planes, sprites enable)
|
||
lda #$00
|
||
sta $212d ; sub screen designation
|
||
lda #$00
|
||
sta $212e ; window mask for main screen
|
||
sta $212f ; window mask for sub screen
|
||
lda #$30
|
||
sta $2130 ; color addition & screen addition init setting
|
||
lda #$00
|
||
sta $2131 ; add/sub sub designation for screen, sprite, color
|
||
lda #$e0
|
||
sta $2132 ; color data for addition/subtraction
|
||
lda #$00
|
||
sta $2133 ; screen setting (interlace x,y/enable sfx<66>data)
|
||
lda #$00
|
||
sta $4200 ; enable v-blank, interrupt, joypad register
|
||
lda #$ff
|
||
sta $4201 ; programmable i/o port
|
||
lda #$00
|
||
sta $4202 ; multiplicand a
|
||
sta $4203 ; multiplier b
|
||
sta $4204 ; multiplier c
|
||
sta $4205 ; multiplicand c
|
||
sta $4206 ; divisor b
|
||
sta $4207 ; horizontal count timer
|
||
sta $4208 ; horizontal count timer msb (most significant bit)
|
||
sta $4209 ; vertical count timer
|
||
sta $420a ; vertical count timer msb
|
||
sta $420b ; general dma enable (bits 0-7)
|
||
sta $420c ; horizontal dma (hdma) enable (bits 0-7)
|
||
sta $420d ; access cycle designation (slow/fast rom)
|
||
rts
|
||
|
||
|
||
|
||
charset:
|
||
|
||
.db $55,$aa,$55,$aa,$55,$aa,$55,$aa ;'@'
|
||
.db $00,$3c,$66,$7e,$66,$66,$66,$00 ;'a'
|
||
.db $00,$7c,$66,$7c,$66,$66,$7c,$00 ;'b'
|
||
.db $00,$3c,$66,$60,$60,$66,$3c,$00 ;'c'
|
||
.db $00,$78,$6c,$66,$66,$6c,$78,$00 ;'d'
|
||
.db $00,$7e,$60,$78,$60,$60,$7e,$00 ;'e'
|
||
.db $00,$7e,$60,$78,$60,$60,$60,$00 ;'f'
|
||
.db $00,$3c,$66,$60,$6e,$66,$3c,$00 ;'g'
|
||
.db $00,$66,$66,$7e,$66,$66,$66,$00 ;'h'
|
||
.db $00,$3c,$18,$18,$18,$18,$3c,$00 ;'i'
|
||
.db $00,$1e,$0c,$0c,$0c,$6c,$38,$00 ;'j'
|
||
.db $00,$6c,$78,$70,$78,$6c,$66,$00 ;'k'
|
||
.db $00,$60,$60,$60,$60,$60,$7e,$00 ;'l'
|
||
.db $00,$63,$77,$7f,$6b,$63,$63,$00 ;'m'
|
||
.db $00,$66,$76,$7e,$7e,$6e,$66,$00 ;'n'
|
||
.db $00,$3c,$66,$66,$66,$66,$3c,$00 ;'o'
|
||
.db $00,$7c,$66,$66,$7c,$60,$60,$00 ;'p'
|
||
.db $00,$3c,$66,$66,$66,$3c,$0e,$00 ;'q'
|
||
.db $00,$7c,$66,$66,$7c,$6c,$66,$00 ;'r'
|
||
.db $00,$3e,$60,$3c,$06,$66,$3c,$00 ;'s'
|
||
.db $00,$7e,$18,$18,$18,$18,$18,$00 ;'t'
|
||
.db $00,$66,$66,$66,$66,$66,$3c,$00 ;'u'
|
||
.db $00,$66,$66,$66,$66,$3c,$18,$00 ;'v'
|
||
.db $00,$63,$63,$6b,$7f,$77,$63,$00 ;'w'
|
||
.db $00,$66,$3c,$18,$3c,$66,$66,$00 ;'x'
|
||
.db $00,$66,$66,$3c,$18,$18,$18,$00 ;'y'
|
||
.db $00,$7e,$0c,$18,$30,$60,$7e,$00 ;'z'
|
||
.db $00,$3c,$30,$30,$30,$30,$3c,$00 ;'['
|
||
.db $c0,$60,$30,$18,$0c,$06,$03,$00 ;'|'
|
||
.db $00,$3c,$0c,$0c,$0c,$0c,$3c,$00 ;']'
|
||
.db $10,$38,$6c,$c6,$00,$00,$00,$00 ;'^'
|
||
.db $00,$00,$00,$00,$00,$00,$00,$fe ;'_'
|
||
.db $00,$00,$00,$00,$00,$00,$00,$00 ;' '
|
||
.db $00,$18,$18,$18,$00,$00,$18,$00 ;'!'
|
||
.db $00,$66,$66,$00,$00,$00,$00,$00 ;'"'
|
||
.db $00,$66,$ff,$66,$ff,$66,$00,$00 ;'#'
|
||
.db $00,$08,$1c,$28,$28,$1c,$08,$00 ;'$'
|
||
.db $00,$64,$6c,$18,$30,$6c,$4c,$00 ;'%'
|
||
.db $00,$00,$18,$18,$7e,$18,$18,$00 ;'&'
|
||
.db $00,$0c,$18,$00,$00,$00,$00,$00 ;'''
|
||
.db $00,$18,$30,$30,$30,$18,$0c,$00 ;'('
|
||
.db $00,$18,$0c,$0c,$0c,$18,$30,$00 ;')'
|
||
.db $00,$66,$3c,$ff,$3c,$66,$00,$00 ;'*'
|
||
.db $00,$18,$18,$7e,$18,$18,$00,$00 ;'+'
|
||
.db $00,$00,$00,$00,$00,$18,$18,$30 ;','
|
||
.db $00,$00,$00,$fe,$00,$00,$00,$00 ;'-'
|
||
.db $00,$00,$00,$00,$00,$18,$18,$00 ;'.'
|
||
.db $03,$06,$0c,$18,$30,$60,$c0,$00 ;'/'
|
||
.db $00,$3c,$66,$6e,$76,$66,$3c,$00 ;'0'
|
||
.db $00,$18,$38,$18,$18,$18,$7e,$00 ;'1'
|
||
.db $00,$7c,$06,$0c,$30,$60,$7e,$00 ;'2'
|
||
.db $00,$7e,$06,$1c,$06,$66,$3c,$00 ;'3'
|
||
.db $00,$0e,$1e,$36,$7f,$06,$06,$00 ;'4'
|
||
.db $00,$7e,$60,$7c,$06,$66,$3c,$00 ;'5'
|
||
.db $00,$3e,$60,$7c,$66,$66,$3c,$00 ;'6'
|
||
.db $00,$7e,$06,$0c,$0c,$0c,$0c,$00 ;'7'
|
||
.db $00,$3c,$66,$3c,$66,$66,$3c,$00 ;'8'
|
||
.db $00,$3c,$66,$3e,$06,$66,$3c,$00 ;'9'
|
||
.db $00,$00,$18,$00,$00,$18,$00,$00 ;':'
|
||
.db $00,$00,$18,$00,$00,$18,$18,$30 ;';'
|
||
.db $18,$18,$18,$18,$18,$18,$18,$00 ;'<'
|
||
.db $00,$00,$7e,$00,$7e,$00,$00,$00 ;'='
|
||
.db $18,$18,$0c,$0c,$0c,$0c,$18,$18 ;'>'
|
||
.db $00,$7c,$06,$0c,$18,$00,$18,$00 ;'?'
|
||
|
||
; 12345678901234567890123456789012
|
||
text_0:
|
||
.db " _ _ "
|
||
.db " ___ _ __ | |_(_)_ ____ __ "
|
||
.db " / _ \| '_ \| __| \ \/ /\ \/ / "
|
||
.db " | (_) | |_) | |_| |> < > < "
|
||
.db " \___/| .__/ \__|_/_/\_\/_/\_\ "
|
||
.db " |_| "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " OPTIXX ONCE A AGAIN "
|
||
.db " WITH A CONSOLE RELEASE "
|
||
.db " WWW.OPTIXX.ORG "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
.db " "
|
||
|
||
|
||
.INCLUDE "vsine_1.s"
|
||
|
||
.INCLUDE "vsine_2.s"
|
||
|
||
.INCLUDE "backcolors.s"
|
||
|
||
.INCLUDE "colbar_1.s"
|
||
|
||
.INCLUDE "colbar_2.s"
|
||
|
||
.INCLUDE "colbar_3.s"
|
||
|
||
|
||
|
||
.INCLUDE "optixx_logo.s"
|
||
|
||
|
||
.INCLUDE "colbarsine_1.s"
|
||
.ends
|
||
|
||
|
||
|
||
.bank 1
|
||
|
||
.SECTION "GFX"
|
||
|
||
|
||
|
||
|
||
|
||
|
||
.ends
|
||
|
||
|
||
;.BANK $04 SLOT 6
|
||
;.ORGA $8000
|
||
;long_label:
|
||
nop
|
||
nop
|
||
rts
|
||
|
||
|
||
;.BANK $01 SLOT 6
|
||
;.ORGA $8000
|
||
;.BASE $01
|
||
;.INCLUDE "music.s"
|
||
|
||
;.BANK $02 SLOT 6
|
||
;.ORG $0000
|
||
;music_data_1:
|
||
;.INCBIN "music1.bin"
|
||
|
||
;.BANk $03 SLOT 6
|
||
;.ORG $0000
|
||
;music_data_2:
|
||
;.INCBIN "music2.bin"
|
||
|
||
|
||
|