mirror of
https://gitlab.com/xCrystal/pokecrystal-board.git
synced 2024-09-09 09:51:34 -07:00
478 lines
6.4 KiB
NASM
478 lines
6.4 KiB
NASM
_TitleScreen: ; 10ed67
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call WhiteBGMap
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call ClearSprites
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call ClearTileMap
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; Turn BG Map update off
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xor a
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ld [hBGMapMode], a
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; Reset timing variables
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ld hl, $cf63
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ld [hli], a ; cf63 ; Scene?
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ld [hli], a ; cf64
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ld [hli], a ; cf65 ; Timer lo
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ld [hl], a ; cf66 ; Timer hi
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; Turn LCD off
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call DisableLCD
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; VRAM bank 1
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ld a, 1
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ld [rVBK], a
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; Decompress running Suicune gfx
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ld hl, TitleSuicuneGFX
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ld de, VTiles1
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call Decompress
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; Clear screen palettes
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ld hl, VBGMap0
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ld bc, $0280
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xor a
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call ByteFill
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; Fill tile palettes:
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; BG Map 1:
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; line 0 (copyright)
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ld hl, VBGMap1
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ld bc, $0020 ; one row
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ld a, 7 ; palette
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call ByteFill
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; BG Map 0:
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; Apply logo gradient:
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; lines 3-4
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ld hl, $9860 ; (0,3)
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ld bc, $0040 ; 2 rows
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ld a, 2
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call ByteFill
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; line 5
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ld hl, $98a0 ; (0,5)
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ld bc, $0020 ; 1 row
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ld a, 3
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call ByteFill
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; line 6
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ld hl, $98c0 ; (0,6)
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ld bc, $0020 ; 1 row
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ld a, 4
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call ByteFill
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; line 7
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ld hl, $98e0 ; (0,7)
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ld bc, $0020 ; 1 row
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ld a, 5
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call ByteFill
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; lines 8-9
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ld hl, $9900 ; (0,8)
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ld bc, $0040 ; 2 rows
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ld a, 6
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call ByteFill
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; 'CRYSTAL VERSION'
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ld hl, $9925 ; (5,9)
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ld bc, $000b ; length of version text
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ld a, 1
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call ByteFill
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; Suicune gfx
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ld hl, $9980 ; (0,12)
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ld bc, $00c0 ; the rest of the screen
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ld a, 8
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call ByteFill
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; Back to VRAM bank 0
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ld a, $0
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ld [rVBK], a
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; Decompress logo
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ld hl, TitleLogoGFX
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ld de, VTiles1
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call Decompress
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; Decompress background crystal
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ld hl, TitleCrystalGFX
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ld de, VTiles0
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call Decompress
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; Clear screen tiles
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ld hl, VBGMap0
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ld bc, $0800
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ld a, $7f
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call ByteFill
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; Draw Pokemon logo
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hlcoord 0, 3
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lb bc, 7, 20
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ld d, $80
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ld e, $14
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call DrawTitleGraphic
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; Draw copyright text
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ld hl, $9c03 ; BGMap1(3,0)
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lb bc, 1, 13
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ld d, $c
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ld e, $10
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call DrawTitleGraphic
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; Initialize running Suicune?
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ld d, $0
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call Function10eed2
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; Initialize background crystal
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call Function10ef06
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; Save WRAM bank
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ld a, [rSVBK]
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push af
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; WRAM bank 5
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ld a, 5
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ld [rSVBK], a
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; Update palette colors
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ld hl, TitleScreenPalettes
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ld de, $d000
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ld bc, $0080
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call CopyBytes
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ld hl, TitleScreenPalettes
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ld de, $d080
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ld bc, $0080
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call CopyBytes
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; Restore WRAM bank
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pop af
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ld [rSVBK], a
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; LY/SCX trickery starts here
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ld a, [rSVBK]
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push af
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ld a, 5 ; BANK(LYOverrides)
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ld [rSVBK], a
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; Make alternating lines come in from opposite sides
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; ( This part is actually totally pointless, you can't
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; see anything until these values are overwritten! )
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ld b, 80 / 2 ; alternate for 80 lines
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ld hl, LYOverrides
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.loop
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; $00 is the middle position
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ld [hl], +112 ; coming from the left
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inc hl
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ld [hl], -112 ; coming from the right
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inc hl
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dec b
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jr nz, .loop
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; Make sure the rest of the buffer is empty
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ld hl, LYOverrides + 80
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xor a
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ld bc, LYOverridesEnd - (LYOverrides + 80)
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call ByteFill
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; Let LCD Stat know we're messing around with SCX
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ld a, rSCX - rJOYP
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ld [hLCDStatCustom], a
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pop af
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ld [rSVBK], a
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; Reset audio
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call ChannelsOff
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call EnableLCD
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; Set sprite size to 8x16
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ld a, [rLCDC]
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set 2, a
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ld [rLCDC], a
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ld a, +112
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ld [hSCX], a
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ld a, 8
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ld [hSCY], a
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ld a, 7
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ld [hWX], a
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ld a, -112
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ld [hWY], a
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ld a, $1
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ld [hCGBPalUpdate], a
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; Update BG Map 0 (bank 0)
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ld [hBGMapMode], a
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xor a
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ld [DefaultFlypoint], a
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; Play starting sound effect
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call SFXChannelsOff
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ld de, SFX_TITLE_SCREEN_ENTRANCE
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call PlaySFX
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ret
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; 10eea7
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Function10eea7: ; 10eea7
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ld hl, DefaultFlypoint
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ld a, [hl]
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ld c, a
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inc [hl]
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and $7
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ret nz
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ld a, c
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and $18
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sla a
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swap a
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ld e, a
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ld d, $0
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ld hl, Unknown_10eece
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add hl, de
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ld d, [hl]
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xor a
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ld [hBGMapMode], a
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call Function10eed2
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ld a, $1
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ld [hBGMapMode], a
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ld a, $3
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ld [hBGMapThird], a
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ret
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; 10eece
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Unknown_10eece: ; 10eece
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db $80, $88, $00, $08
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; 10eed2
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Function10eed2: ; 10eed2
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hlcoord 6, 12
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ld b, $6
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.asm_10eed7
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ld c, $8
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.asm_10eed9
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ld a, d
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ld [hli], a
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inc d
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dec c
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jr nz, .asm_10eed9
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ld a, $c
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add l
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ld l, a
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ld a, $0
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adc h
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ld h, a
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ld a, $8
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add d
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ld d, a
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dec b
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jr nz, .asm_10eed7
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ret
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; 10eeef
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DrawTitleGraphic: ; 10eeef
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; input:
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; hl: draw location
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; b: height
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; c: width
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; d: tile to start drawing from
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; e: number of tiles to advance for each row
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.asm_10eeef
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push de
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push bc
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push hl
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.asm_10eef2
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ld a, d
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ld [hli], a
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inc d
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dec c
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jr nz, .asm_10eef2
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pop hl
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ld bc, $0014
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add hl, bc
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pop bc
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pop de
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ld a, e
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add d
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ld d, a
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dec b
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jr nz, .asm_10eeef
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ret
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; 10ef06
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Function10ef06: ; 10ef06
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ld hl, Sprites
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ld d, $de
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ld e, $0
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ld c, $5
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.asm_10ef0f
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push bc
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call Function10ef1c
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pop bc
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ld a, $10
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add d
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ld d, a
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dec c
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jr nz, .asm_10ef0f
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ret
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; 10ef1c
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Function10ef1c: ; 10ef1c
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ld c, $6
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ld b, $40
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.asm_10ef20
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ld a, d
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ld [hli], a
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ld a, b
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ld [hli], a
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add $8
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ld b, a
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ld a, e
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ld [hli], a
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inc e
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inc e
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ld a, $80
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ld [hli], a
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dec c
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jr nz, .asm_10ef20
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ret
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; 10ef32
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AnimateTitleCrystal: ; 10ef32
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; Move the title screen crystal downward until it's fully visible
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; Stop at y=6
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; y is really from the bottom of the sprite, which is two tiles high
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ld hl, Sprites
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ld a, [hl]
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cp 6 + 16
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ret z
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; Move all 30 parts of the crystal down by 2
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ld c, 30
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.loop
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ld a, [hl]
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add 2
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ld [hli], a
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inc hl
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inc hl
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inc hl
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dec c
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jr nz, .loop
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ret
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; 10ef46
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TitleSuicuneGFX: ; 10ef46
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INCBIN "gfx/title/suicune.w128.2bpp.lz"
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; 10f326
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TitleLogoGFX: ; 10f326
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INCBIN "gfx/title/logo.w160.t4.2bpp.lz"
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; 10fcee
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TitleCrystalGFX: ; 10fcee
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INCBIN "gfx/title/crystal.w48.interleave.2bpp.lz"
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; 10fede
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TitleScreenPalettes:
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; BG
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RGB 00, 00, 00
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RGB 19, 00, 00
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RGB 15, 08, 31
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RGB 15, 08, 31
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 15, 16, 31
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RGB 31, 01, 13
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RGB 00, 00, 00
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RGB 07, 07, 07
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RGB 31, 31, 31
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RGB 02, 03, 30
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RGB 00, 00, 00
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RGB 13, 13, 13
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RGB 31, 31, 18
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RGB 02, 03, 30
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RGB 00, 00, 00
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RGB 19, 19, 19
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RGB 29, 28, 12
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RGB 02, 03, 30
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RGB 00, 00, 00
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RGB 25, 25, 25
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RGB 28, 25, 06
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RGB 02, 03, 30
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 26, 21, 00
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RGB 02, 03, 30
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RGB 00, 00, 00
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RGB 11, 11, 19
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RGB 31, 31, 31
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RGB 00, 00, 00
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; OBJ
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RGB 00, 00, 00
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RGB 10, 00, 15
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RGB 17, 05, 22
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RGB 19, 09, 31
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RGB 31, 31, 31
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 31, 31, 31
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RGB 00, 00, 00
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RGB 00, 00, 00
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RGB 00, 00, 00
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