mirror of
https://gitlab.com/xCrystal/pokecrystal-board.git
synced 2024-09-09 09:51:34 -07:00
disassemble title screen init
This commit is contained in:
yenatch
parent
ad46a9359b
commit
61a3d14593
432
main.asm
432
main.asm
@ -140,6 +140,9 @@ IncGradGBPalTable_01: ; 52f
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INCBIN "baserom.gbc",$547,$568 - $547
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DisableLCD: ; 568
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; Turn the LCD off
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; Most of this is just going through the motions
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; don't need to do anything if lcd is already off
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ld a, [$ff40] ; LCDC
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bit 7, a ; lcd enable
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@ -782,7 +785,23 @@ FarCopyBytesDouble: ; e9b
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; 0xeba
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INCBIN "baserom.gbc",$eba,$ff1 - $eba
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INCBIN "baserom.gbc",$eba,$fc8 - $eba
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ClearTileMap: ; fc8
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; Fill the tile map with blank tiles
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ld hl, TileMap
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ld a, $7f ; blank tile
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ld bc, 360 ; length of TileMap
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call ByteFill
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; We aren't done if the LCD is on
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ld a, [$ff40] ; LCDC
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bit 7, a
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ret z
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jp WaitBGMap
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; fdb
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INCBIN "baserom.gbc",$fdb,$ff1 - $fdb
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TextBoxBorder: ; ff1
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; draw a text box
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@ -1475,9 +1494,34 @@ CloseSRAM: ; 2fe1
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ld [$0000], a
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pop af
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ret
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; 2fef
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; 2fec
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INCBIN "baserom.gbc",$2fec,$3026-$2fec
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INCBIN "baserom.gbc",$2fec,$300b-$2fec
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ClearSprites: ; 300b
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ld hl, Sprites
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ld b, TileMap - Sprites
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xor a
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.loop
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ld [hli], a
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dec b
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jr nz, .loop
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ret
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; 3016
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HideSprites: ; 3016
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; Set all OBJ y-positions to 160 to hide them offscreen
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ld hl, Sprites
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ld de, $0004 ; length of an OBJ struct
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ld b, $28 ; number of OBJ structs
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ld a, 160 ; y-position
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.loop
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ld [hl], a
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add hl, de
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dec b
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jr nz, .loop
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ret
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; 3026
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CopyBytes: ; 0x3026
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; copy bc bytes from hl to de
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@ -1779,10 +1823,62 @@ StringCmp: ; 31db
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ret
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; 0x31e4
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INCBIN "baserom.gbc",$31e4,$3340 - $31e4
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INCBIN "baserom.gbc",$31e4,$31f3 - $31e4
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WhiteBGMap: ; 31f3
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call ClearPalettes
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WaitBGMap: ; 31f6
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; Tell VBlank to update BG Map
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ld a, 1 ; BG Map 0 tiles
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ld [$ffd4], a
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; Wait for it to do its magic
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ld c, 4
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call DelayFrames
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ret
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; 3200
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INCBIN "baserom.gbc",$3200,$3317 - $3200
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ClearPalettes: ; 3317
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; Make all palettes white
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; For CGB we make all the palette colors white
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ld a, [$ffe6]
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and a
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jr nz, .cgb
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; In DMG mode, we can just change palettes to 0 (white)
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xor a
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ld [$ff47], a ; BGP
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ld [$ff48], a ; OBP0
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ld [$ff49], a ; OBP1
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ret
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.cgb
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; Save WRAM bank
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ld a, [$ff70]
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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 [$ff70], a
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; Fill BGPals and OBPals with $ffff (white)
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ld hl, BGPals
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ld bc, $0080
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ld a, $ff
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call ByteFill
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; Restore WRAM bank
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pop af
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ld [$ff70], a
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; Request palette update
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ld a, 1
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ld [$ffe5], a
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ret
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; 333e
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ClearSGB: ; 333e
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ld b, $ff
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GetSGBLayout: ; 3340
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; load sgb packets unless gb
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; load sgb packets unless dmg
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; check cgb
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ld a, [$ffe6]
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@ -1875,7 +1971,7 @@ GetName: ; 33c3
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call GetNthString
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ld de, $d073
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ld bc, $000d
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call $3026
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call CopyBytes
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.asm_3403
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ld a, e
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ld [$d102], a
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@ -2279,7 +2375,31 @@ CheckSFX: ; 3dde
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ret
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; 3dfe
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INCBIN "baserom.gbc",$3dfe,$4000 - $3dfe
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INCBIN "baserom.gbc",$3dfe,$3e10 - $3dfe
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ChannelsOff: ; 3e10
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; Quickly turn off music channels
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xor a
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ld [$c104], a
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ld [$c136], a
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ld [$c168], a
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ld [$c19a], a
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ld [$c29c], a
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ret
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; 3e21
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SFXChannelsOff: ; 3e21
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; Quickly turn off sound effect channels
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xor a
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ld [$c1cc], a
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ld [$c1fe], a
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ld [$c230], a
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ld [$c262], a
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ld [$c29c], a
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ret
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; 3e32
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INCBIN "baserom.gbc",$3e32,$4000 - $3e32
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SECTION "bank1",DATA,BANK[$1]
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@ -2374,7 +2494,35 @@ CheckNickErrors: ; 669f
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db $ff ; end
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; 66de
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INCBIN "baserom.gbc",$66de,$8000 - $66de
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INCBIN "baserom.gbc",$66de,$6eef - $66de
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DrawGraphic: ; 6eef
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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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call $7009
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pop bc
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pop hl
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ret c
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bit 5, [hl]
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jr nz, .asm_6f05
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push hl
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call $70a4
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pop hl
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ret c
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push hl
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call $70ed
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pop hl
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ret c
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.asm_6f05
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and a
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ret
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; 6f07
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INCBIN "baserom.gbc",$6f07,$8000 - $6f07
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SECTION "bank2",DATA,BANK[$2]
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@ -88482,7 +88630,7 @@ SFX: ; e927c
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dbw $3c, $4a22 ; tap
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dbw $3c, $4a25 ; tap
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dbw $3c, $4a28 ; burn ; that is not a burn
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dbw $3c, $4a2b ;
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dbw $3c, $4a2b ; title screen sound
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dbw $3c, $4a2e ; similar to $60
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dbw $3c, $4a31 ; get coin from slots
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dbw $3c, $4a34 ; pay day
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@ -89238,7 +89386,245 @@ INCBIN "baserom.gbc", $10983f, $10c000 - $10983f
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SECTION "bank43",DATA,BANK[$43]
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INCBIN "baserom.gbc", $10c000, $10ef46 - $10c000
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INCBIN "baserom.gbc", $10c000, $10ed67 - $10c000
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TitleScreen: ; 10ed67
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call WhiteBGMap
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call ClearSprites
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call ClearTileMap
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; Turn BG Map update off
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xor a
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ld [$ffd4], a
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; Reset timing variables
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ld hl, $cf63
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ld [hli], a ; cf63 ; Scene?
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ld [hli], a ; cf64
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ld [hli], a ; cf65 ; Timer lo
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ld [hl], a ; cf66 ; Timer hi
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; Turn LCD off
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call DisableLCD
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; VRAM bank 1
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ld a, 1
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ld [$ff4f], a
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; Decompress running Suicune gfx
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ld hl, TitleSuicuneGFX
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ld de, $8800
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call $0b50
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; Clear screen palettes
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ld hl, $9800
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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, $9c00
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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, $0
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ld [$ff4f], a
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; Decompress logo
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ld hl, TitleLogoGFX
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ld de, $8800
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call $0b50
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; Decompress background crystal
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ld hl, TitleCrystalGFX
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ld de, $8000
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call $0b50
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; Clear screen tiles
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ld hl, $9800
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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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ld hl, $c4dc ; TileMap(0,3)
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ld bc, $0714 ; 20x7
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ld d, $80
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ld e, $14
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call DrawGraphic
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; Draw copyright text
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ld hl, $9c03 ; BG Map 1 (3,0)
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ld bc, $010d ; 13x1
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ld d, $c
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ld e, $10
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call DrawGraphic
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; Initialize running Suicune?
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ld d, $0
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call $6ed2
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; Initialize background crystal
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call $6f06
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; Save WRAM bank
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ld a, [$ff70]
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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 [$ff70], 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, $0080
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call CopyBytes
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; Restore WRAM bank
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pop af
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ld [$ff70], a
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; LY/SCX trickery starts here
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; Save WRAM bank
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ld a, [$ff70]
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push af
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; WRAM bank 5
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ld a, 5
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ld [$ff70], 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, 40 ; alternate for 80 lines
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ld hl, $d100 ; LY buffer
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.loop
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; $00 is the middle position
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ld [hl], $70 ; coming from the left
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inc hl
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ld [hl], $90 ; 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, $d150
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xor a
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ld bc, $0040
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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, $43 ; ff43 ; SCX
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ld [$ffc6], a
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; Restore WRAM bank
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pop af
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ld [$ff70], a
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; Reset audio
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call ChannelsOff
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call $058a
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; Set sprite size to 8x16
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ld a, [$ff40] ; LCDC
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set 2, a
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ld [$ff40], a ; LCDC
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;
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ld a, $70
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ld [$ffcf], a
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ld a, $8
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ld [$ffd0], a
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ld a, $7
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ld [$ffd1], a
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ld a, $90
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ld [$ffd2], a
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ld a, $1
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ld [$ffe5], a
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; Update BG Map 0 (bank 0)
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ld [$ffd4], a
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xor a
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ld [$d002], a
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; Play starting sound effect
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call SFXChannelsOff
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ld de, $0065
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call StartSFX
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ret
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; 10eea7
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INCBIN "baserom.gbc", $10eea7, $10ef46 - $10eea7
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TitleSuicuneGFX: ; 10ef46
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INCBIN "gfx/title/lz/suicune.lz"
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@ -89256,7 +89642,29 @@ TitleCrystalGFX: ; 10fcee
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INCBIN "gfx/title/lz/crystal.lz"
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; 10fed7
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INCBIN "baserom.gbc", $10fed7, $110000 - $10fed7
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INCBIN "baserom.gbc", $10fed7, $10fede - $10fed7
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TitleScreenPalettes:
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; BG
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dw $0000, $0013, $7D0F, $7D0F
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dw $0000, $7FFF, $7E0F, $343F
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dw $0000, $1CE7, $7FFF, $7862
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dw $0000, $35AD, $4BFF, $7862
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dw $0000, $4E73, $339D, $7862
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dw $0000, $6739, $1B3C, $7862
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dw $0000, $7FFF, $02BA, $7862
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dw $0000, $4D6B, $7FFF, $0000
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; OBJ
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dw $0000, $3C0A, $58B1, $7D33
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dw $7FFF, $0000, $0000, $0000
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dw $7FFF, $0000, $0000, $0000
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dw $7FFF, $0000, $0000, $0000
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dw $7FFF, $0000, $0000, $0000
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dw $7FFF, $0000, $0000, $0000
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dw $7FFF, $0000, $0000, $0000
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dw $7FFF, $0000, $0000, $0000
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INCBIN "baserom.gbc", $10ff5e, $110000 - $10ff5e
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SECTION "bank44",DATA,BANK[$44]
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@ -89521,7 +89929,7 @@ Function117bb6:
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ld hl, $d002
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ld de, $b000
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ld bc, $1000
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call $3026
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call CopyBytes
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call CloseSRAM
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pop af
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ld [$ff70], a
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