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https://github.com/pret/pokegold.git
synced 2026-05-18 09:44:00 -05:00
97 lines
1.5 KiB
NASM
97 lines
1.5 KiB
NASM
ReanchorBGMap_NoOAMUpdate::
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call DelayFrame
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ldh a, [hOAMUpdate]
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push af
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ld a, $1
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ldh [hOAMUpdate], a
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ldh a, [hBGMapMode]
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push af
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xor a
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ldh [hBGMapMode], a
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call .ReanchorBGMap
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pop af
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ldh [hBGMapMode], a
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pop af
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ldh [hOAMUpdate], a
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ret
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.ReanchorBGMap:
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xor a
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ldh [hLCDCPointer], a
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ldh [hBGMapMode], a
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ld hl, wUnusedReanchorBGMapFlags
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set UNUSED_REANCHOR_BG_MAP_7, [hl]
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res UNUSED_REANCHOR_BG_MAP_2, [hl]
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ld a, $90
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ldh [hWY], a
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call LoadOverworldTilemapAndAttrmapPals
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ld a, HIGH(vBGMap1)
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call .LoadBGMapAddrIntoHRAM
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call HDMATransferTilemapAndAttrmap_Menu
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xor a
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ldh [hBGMapMode], a
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ldh [hWY], a
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ld a, HIGH(vBGMap0)
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call .LoadBGMapAddrIntoHRAM
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call .WaitTransfer
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xor a ; LOW(vBGMap0)
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ld [wBGMapAnchor], a
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ld a, HIGH(vBGMap0)
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ld [wBGMapAnchor + 1], a
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xor a
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ldh [hSCX], a
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ldh [hSCY], a
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call ApplyBGMapAnchorToObjects
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ret
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.LoadBGMapAddrIntoHRAM:
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ldh [hBGMapAddress + 1], a
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xor a
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ldh [hBGMapAddress], a
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ret
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.WaitTransfer:
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ldh a, [hBGMapMode]
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push af
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xor a
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ldh [hBGMapMode], a
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ldh a, [hOAMUpdate]
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push af
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ld a, 1
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ldh [hOAMUpdate], a
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ld a, 3
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ldh [hBlackOutBGMapThird], a
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.wait_loop
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call DelayFrame
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ldh a, [hBlackOutBGMapThird]
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and a
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jr nz, .wait_loop
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pop af
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ldh [hOAMUpdate], a
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pop af
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ldh [hBGMapMode], a
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ret
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LoadFonts_NoOAMUpdate::
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ldh a, [hOAMUpdate]
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push af
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ld a, $1
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ldh [hOAMUpdate], a
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call .LoadGFX
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pop af
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ldh [hOAMUpdate], a
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ret
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.LoadGFX:
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call LoadFontsExtra
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ld a, $90
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ldh [hWY], a
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call SafeUpdateSprites
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call LoadStandardFont
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ret
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