diff options
Diffstat (limited to 'home/init.asm')
| -rw-r--r-- | home/init.asm | 59 |
1 files changed, 34 insertions, 25 deletions
diff --git a/home/init.asm b/home/init.asm index b06820f0..82b3cf7e 100644 --- a/home/init.asm +++ b/home/init.asm @@ -1,25 +1,33 @@ -Reset:: ; 5b0 (0:05b0) - call MapSetup_Sound_Off +Reset:: + call InitSound xor a ldh [hMapAnims], a call ClearPalettes ei + ld hl, wd8ba set 7, [hl] + ld c, 32 call DelayFrames + jr Init -_Start:: ; 5c6 (0:05c6) + +_Start:: cp $11 jr z, .cgb xor a jr .load + .cgb ld a, $1 + .load ldh [hCGB], a -Init:: ; 5d1 (0:05d1) + +Init:: di + xor a ldh [rIF], a ldh [rIE], a @@ -36,21 +44,23 @@ Init:: ; 5d1 (0:05d1) ldh [rTMA], a ldh [rTAC], a ld [wceeb], a - ld a, $4 + + ld a, %100 ; Start timer at 4096Hz ldh [rTAC], a + .wait ldh a, [rLY] - cp 145 + cp LY_VBLANK + 1 jr nz, .wait xor a ldh [rLCDC], a -; Clear WRAM - ld hl, wMusicPlaying +; Clear WRAM bank 0 + ld hl, WRAM0_Begin ld bc, $2000 -.ByteFill - ld [hl], $0 +.ByteFill: + ld [hl], 0 inc hl dec bc ld a, b @@ -71,10 +81,10 @@ Init:: ; 5d1 (0:05d1) call ClearSprites - ld a, BANK(LoadPushOAM) + ld a, BANK(WriteOAMDMACodeToHRAM) rst Bankswitch - call LoadPushOAM + call WriteOAMDMACodeToHRAM xor a ldh [hMapAnims], a @@ -89,11 +99,11 @@ Init:: ; 5d1 (0:05d1) ldh [hWY], a ldh [rWY], a - ld a, $7 + ld a, 7 ldh [hWX], a ldh [rWX], a - ld a, -1 + ld a, CONNECTION_NOT_ESTABLISHED ldh [hLinkPlayerNumber], a ld h, $98 @@ -103,9 +113,9 @@ Init:: ; 5d1 (0:05d1) callfar InitCGBPals - ld a, $9c + ld a, HIGH(vBGMap1) ldh [hBGMapAddress + 1], a - xor a + xor a ; LOW(vBGMap1) ldh [hBGMapAddress], a farcall StartClock @@ -116,7 +126,7 @@ Init:: ; 5d1 (0:05d1) ld [MBC3LatchClock], a ld [MBC3SRamEnable], a - ld a, %11100011 + ld a, LCDC_DEFAULT ; %11100011 ; LCD on ; Win tilemap 1 ; Win on @@ -133,26 +143,25 @@ Init:: ; 5d1 (0:05d1) call DelayFrame - ld a, $30 - call Predef + predef InitSGBBorder ; SGB init - call MapSetup_Sound_Off + call InitSound xor a ld [wMapMusic], a jp GameInit -ClearVRAM:: ; 68e (0:068e) - ld hl, $8000 - ld bc, $2000 +ClearVRAM:: + ld hl, VRAM_Begin + ld bc, VRAM_End - VRAM_Begin xor a call ByteFill ret -BlankBGMap:: ; 699 (0:0699) +BlankBGMap:: ld a, $7f jr asm_69e -FillBGMap:: ; 69d +FillBGMap:: ld a, l asm_69e ld de, $400 |