ref: 6d612c8828861998644635352a6b7c479e1efa04
dir: /engine/init.asm/
Reset: ; 150 di call CleanSoundRestart xor a ld [$ffde], a call ClearPalettes xor a ld [rIF], a ld a, 1 ; VBlank int ld [rIE], a ei ld hl, $cfbe set 7, [hl] ld c, 32 call DelayFrames jr Init ; 16e _Start: ; 16e cp $11 jr z, .asm_175 xor a jr .asm_177 .asm_175 ld a, $1 .asm_177 ld [hCGB], a ld a, $1 ld [$ffea], a ; 17d Init: ; 17d di xor a ld [rIF], a ld [rIE], a ld [rRP], a ld [rSCX], a ld [rSCY], a ld [rSB], a ld [rSC], a ld [rWX], a ld [rWY], a ld [rBGP], a ld [rOBP0], a ld [rOBP1], a ld [rTMA], a ld [rTAC], a ld [$d000], a ld a, %100 ; Start timer at 4096Hz ld [rTAC], a .wait ld a, [rLY] cp 145 jr nz, .wait xor a ld [rLCDC], a ; Clear WRAM bank 0 ld hl, $c000 ld bc, $d000 - $c000 .asm_1b1 ld [hl], 0 inc hl dec bc ld a, b or c jr nz, .asm_1b1 ld sp, Stack - 1 ; Clear HRAM ld a, [hCGB] push af ld a, [$ffea] push af xor a ld hl, $ff80 ld bc, $ffff - $ff80 call ByteFill pop af ld [$ffea], a pop af ld [hCGB], a call ClearWRAM ld a, 1 ld [rSVBK], a call ClearVRAM call ClearSprites call Function270 ld a, BANK(LoadPushOAM) rst Bankswitch call LoadPushOAM xor a ld [$ffde], a ld [hSCX], a ld [hSCY], a ld [rJOYP], a ld a, $8 ; HBlank int enable ld [rSTAT], a ld a, $90 ld [hWY], a ld [rWY], a ld a, 7 ld [hWX], a ld [rWX], a ld a, %11100011 ; LCD on ; Win tilemap 1 ; Win on ; BG/Win tiledata 0 ; BG Tilemap 0 ; OBJ 8x8 ; OBJ on ; BG on ld [rLCDC], a ld a, $ff ld [$ffcb], a callba Function9890 ld a, $9c ld [$ffd7], a xor a ld [hBGMapAddress], a callba StartClock xor a ld [MBC3LatchClock], a ld [MBC3SRamEnable], a ld a, [hCGB] and a jr z, .asm_22b call Function2ff7 .asm_22b xor a ld [rIF], a ld a, %1111 ; VBlank, LCDStat, Timer, Serial interrupts ld [rIE], a ei call DelayFrame ld a, $30 call Predef call CleanSoundRestart xor a ld [CurMusic], a jp GameInit ; 245 ClearVRAM: ; 245 ; Wipe VRAM banks 0 and 1 ld a, 1 ld [rVBK], a call .clear xor a ld [rVBK], a .clear ld hl, VTiles0 ld bc, $2000 xor a call ByteFill ret ; 25a ClearWRAM: ; 25a ; Wipe swappable WRAM banks (1-7) ld a, 1 .asm_25c push af ld [rSVBK], a xor a ld hl, $d000 ld bc, $1000 call ByteFill pop af inc a cp 8 jr nc, .asm_25c ret ; 270 Function270: ; 270 ld a, $0 call GetSRAMBank ld hl, $a000 ld bc, $0020 xor a call ByteFill call CloseSRAM ret ; 283