pokered/home/init.asm

SoftReset::
	call StopAllSounds
	call GBPalWhiteOut
	ld c, 32
	call DelayFrames
	; fallthrough

Init::
;  Program init.

; * LCD enabled
; * Window tile map at $9C00
; * Window display enabled
; * BG and window tile data at $8800
; * BG tile map at $9800
; * 8x8 OBJ size
; * OBJ display enabled
; * BG display enabled
DEF rLCDC_DEFAULT EQU (1 << rLCDC_ENABLE) | (1 << rLCDC_WINDOW_TILEMAP) | (1 << rLCDC_WINDOW_ENABLE) | (1 << rLCDC_SPRITES_ENABLE) | (1 << rLCDC_BG_PRIORITY)

	di

	xor a
	ldh [rIF], a
	ldh [rIE], a
	ldh [rSCX], a
	ldh [rSCY], a
	ldh [rSB], a
	ldh [rSC], a
	ldh [rWX], a
	ldh [rWY], a
	ldh [rTMA], a
	ldh [rTAC], a
	ldh [rBGP], a
	ldh [rOBP0], a
	ldh [rOBP1], a

	ld a, 1 << rLCDC_ENABLE
	ldh [rLCDC], a
	call DisableLCD

	ld sp, wStack

	ld hl, STARTOF(WRAM0)
	ld bc, SIZEOF(WRAM0)
.loop
	ld [hl], 0
	inc hl
	dec bc
	ld a, b
	or c
	jr nz, .loop

	call ClearVram

	ld hl, STARTOF(HRAM)
	ld bc, SIZEOF(HRAM)
	call FillMemory

	call ClearSprites

	ld a, BANK(WriteDMACodeToHRAM)
	ldh [hLoadedROMBank], a
	ld [MBC1RomBank], a
	call WriteDMACodeToHRAM

	xor a
	ldh [hTileAnimations], a
	ldh [rSTAT], a
	ldh [hSCX], a
	ldh [hSCY], a
	ldh [rIF], a
	ld a, 1 << VBLANK + 1 << TIMER + 1 << SERIAL
	ldh [rIE], a

	ld a, 144 ; move the window off-screen
	ldh [hWY], a
	ldh [rWY], a
	ld a, 7
	ldh [rWX], a

	ld a, CONNECTION_NOT_ESTABLISHED
	ldh [hSerialConnectionStatus], a

	ld h, HIGH(vBGMap0)
	call ClearBgMap
	ld h, HIGH(vBGMap1)
	call ClearBgMap

	ld a, rLCDC_DEFAULT
	ldh [rLCDC], a
	ld a, 16
	ldh [hSoftReset], a
	call StopAllSounds

	ei

	predef LoadSGB

	ld a, BANK(SFX_Shooting_Star)
	ld [wAudioROMBank], a
	ld [wAudioSavedROMBank], a
	ld a, $9c
	ldh [hAutoBGTransferDest + 1], a
	xor a
	ldh [hAutoBGTransferDest], a
	dec a
	ld [wUpdateSpritesEnabled], a

	predef PlayIntro

	call DisableLCD
	call ClearVram
	call GBPalNormal
	call ClearSprites
	ld a, rLCDC_DEFAULT
	ldh [rLCDC], a

	jp PrepareTitleScreen

ClearVram::
	ld hl, STARTOF(VRAM)
	ld bc, SIZEOF(VRAM)
	xor a
	jp FillMemory


StopAllSounds::
	ld a, BANK("Audio Engine 1")
	ld [wAudioROMBank], a
	ld [wAudioSavedROMBank], a
	xor a
	ld [wAudioFadeOutControl], a
	ld [wNewSoundID], a
	ld [wLastMusicSoundID], a
	dec a
	jp PlaySound
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`SoftReset::`
			`call StopAllSounds`
			`call GBPalWhiteOut`
$U-Daniel-PC\Daniel$ Rename/organize part 1 of 4 rename functions, clean up address/wram comments, other misc only broken up so that all changes are viewable on github 2015-07-03 19:37:53 +00:00			`ld c, 32`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`call DelayFrames`
			`; fallthrough`

			`Init::`
			`; Program init.`

			`; * LCD enabled`
			`; * Window tile map at $9C00`
			`; * Window display enabled`
			`; * BG and window tile data at $8800`
			`; * BG tile map at $9800`
			`; * 8x8 OBJ size`
			`; * OBJ display enabled`
			`; * BG display enabled`
Identify hardware register bits (#469) 2024-09-24 14:48:10 +00:00			`DEF rLCDC_DEFAULT EQU (1 << rLCDC_ENABLE) \| (1 << rLCDC_WINDOW_TILEMAP) \| (1 << rLCDC_WINDOW_ENABLE) \| (1 << rLCDC_SPRITES_ENABLE) \| (1 << rLCDC_BG_PRIORITY)`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
			`di`

			`xor a`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [rIF], a`
			`ldh [rIE], a`
			`ldh [rSCX], a`
			`ldh [rSCY], a`
			`ldh [rSB], a`
			`ldh [rSC], a`
			`ldh [rWX], a`
			`ldh [rWY], a`
			`ldh [rTMA], a`
			`ldh [rTAC], a`
			`ldh [rBGP], a`
			`ldh [rOBP0], a`
			`ldh [rOBP1], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
Identify hardware register bits (#469) 2024-09-24 14:48:10 +00:00			`ld a, 1 << rLCDC_ENABLE`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [rLCDC], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`call DisableLCD`

			`ld sp, wStack`

Update to RGBDS 0.7.0 (#447) 2024-01-03 15:59:04 +00:00			`ld hl, STARTOF(WRAM0)`
			`ld bc, SIZEOF(WRAM0)`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`.loop`
			`ld [hl], 0`
			`inc hl`
			`dec bc`
			`ld a, b`
			`or c`
			`jr nz, .loop`

			`call ClearVram`

Update to RGBDS 0.7.0 (#447) 2024-01-03 15:59:04 +00:00			`ld hl, STARTOF(HRAM)`
			`ld bc, SIZEOF(HRAM)`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`call FillMemory`

			`call ClearSprites`

Replace raw hex values with HRAM constants To do: turn constants into labels and use ldh 2020-07-04 02:11:35 +00:00			`ld a, BANK(WriteDMACodeToHRAM)`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [hLoadedROMBank], a`
Commented/labelled misc functions 2014-09-14 18:29:18 +00:00			`ld [MBC1RomBank], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`call WriteDMACodeToHRAM`

			`xor a`
Label and document hFFD7 more accurately 2020-11-29 20:17:29 +00:00			`ldh [hTileAnimations], a`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [rSTAT], a`
			`ldh [hSCX], a`
			`ldh [hSCY], a`
			`ldh [rIF], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`ld a, 1 << VBLANK + 1 << TIMER + 1 << SERIAL`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [rIE], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
			`ld a, 144 ; move the window off-screen`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [hWY], a`
			`ldh [rWY], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`ld a, 7`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [rWX], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
serial/trade/misc 2015-02-07 10:43:08 +00:00			`ld a, CONNECTION_NOT_ESTABLISHED`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [hSerialConnectionStatus], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
Use HIGH() and LOW() 2020-07-07 15:10:29 +00:00			`ld h, HIGH(vBGMap0)`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`call ClearBgMap`
Use HIGH() and LOW() 2020-07-07 15:10:29 +00:00			`ld h, HIGH(vBGMap1)`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`call ClearBgMap`

			`ld a, rLCDC_DEFAULT`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [rLCDC], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`ld a, 16`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [hSoftReset], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`call StopAllSounds`

			`ei`

Use macros to define predefs. 2014-06-16 20:25:46 +00:00			`predef LoadSGB`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
Rename sound effect files 2015-07-22 14:57:31 +00:00			`ld a, BANK(SFX_Shooting_Star)`
commented audio code 2015-08-09 05:32:44 +00:00			`ld [wAudioROMBank], a`
			`ld [wAudioSavedROMBank], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`ld a, $9c`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [hAutoBGTransferDest + 1], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`xor a`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [hAutoBGTransferDest], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`dec a`
Commented more sprite and map code 2014-09-13 07:50:56 +00:00			`ld [wUpdateSpritesEnabled], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
Use macros to define predefs. 2014-06-16 20:25:46 +00:00			`predef PlayIntro`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
			`call DisableLCD`
			`call ClearVram`
			`call GBPalNormal`
			`call ClearSprites`
			`ld a, rLCDC_DEFAULT`
Specify the ldh instruction, don't turn ld into ldh 2020-07-06 23:03:05 +00:00			`ldh [rLCDC], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
Complete and improve debug name labels (#408) 2023-02-26 16:14:21 +00:00			`jp PrepareTitleScreen`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00
Separate maps.asm, pics.asm, sprites.asm, and tilesets.asm from main.asm (#251) Each new file builds its own .o, along with separate main.o and home.o, which necessitates many more "exported::" labels. 2020-06-27 19:32:24 +00:00			`ClearVram::`
Update to RGBDS 0.7.0 (#447) 2024-01-03 15:59:04 +00:00			`ld hl, STARTOF(VRAM)`
			`ld bc, SIZEOF(VRAM)`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`xor a`
			`jp FillMemory`


			`StopAllSounds::`
Sync home and macro code with pokeyellow 2020-11-05 15:50:30 +00:00			`ld a, BANK("Audio Engine 1")`
commented audio code 2015-08-09 05:32:44 +00:00			`ld [wAudioROMBank], a`
			`ld [wAudioSavedROMBank], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`xor a`
commented audio code 2015-08-09 05:32:44 +00:00			`ld [wAudioFadeOutControl], a`
			`ld [wNewSoundID], a`
			`ld [wLastMusicSoundID], a`
Split more code out of home.asm. 2014-05-31 08:22:15 +00:00			`dec a`
			`jp PlaySound`