ref: 1853e3d127556103fe5828b8589305192106d27e
dir: /engine/menus/savemenu_copytilemapatonce.asm/
SaveMenu_CopyTilemapAtOnce: ldh a, [hCGB] and a jp z, WaitBGMap ; The following is a modified version of CopyTilemapAtOnce. ldh a, [hBGMapMode] push af xor a ldh [hBGMapMode], a ldh a, [hMapAnims] push af xor a ldh [hMapAnims], a .WaitLY: ldh a, [rLY] cp $60 jr c, .WaitLY di ld a, BANK(vBGMap2) ldh [rVBK], a hlcoord 0, 0, wAttrMap call .CopyTilemapAtOnce ld a, BANK(vBGMap0) ldh [rVBK], a hlcoord 0, 0 call .CopyTilemapAtOnce .WaitLY2: ldh a, [rLY] cp $60 jr c, .WaitLY2 ei pop af ldh [hMapAnims], a pop af ldh [hBGMapMode], a ret .CopyTilemapAtOnce: ld [hSPBuffer], sp ld sp, hl ldh a, [hBGMapAddress + 1] ld h, a ld l, 0 ld a, SCREEN_HEIGHT ldh [hTilesPerCycle], a ld b, 1 << 1 ld c, LOW(rSTAT) .loop rept SCREEN_WIDTH / 2 pop de .loop\@ ld a, [$ff00+c] and b jr nz, .loop\@ ld [hl], e inc l ld [hl], d inc l endr ld de, BG_MAP_WIDTH - SCREEN_WIDTH add hl, de ldh a, [hTilesPerCycle] dec a ldh [hTilesPerCycle], a jr nz, .loop ldh a, [hSPBuffer] ld l, a ldh a, [hSPBuffer + 1] ld h, a ld sp, hl ret