ASM Init
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; GB Initialization example ; RGBDS asm source ; David Pello 2012 INCLUDE "gbhw.inc" ; include GB hardware definitions ; vBlank interrupt SECTION "Vblank",HOME[$0040] reti ; nothing, return ; Program starts here: SECTION "start",HOME[$0100] nop jp start ; ROM Header (gbhw.inc macro) ; MBC1 mapper, 64K rom, 8K RAM ROM_HEADER ROM_MBC1_RAM_BAT, ROM_SIZE_64KBYTE, RAM_SIZE_8KBYTE ; program begins start: nop di ; disables interrupts ld sp, $fffe ; stack points to top of the high ram init: ; palletes ld a, %11100100 ; pallete colors from darker to ; lighter, 11 10 01 00 ld [rBGP], a ; write this at the background pallete register ld [rOBP0], a ; and at the first sprites pallete ; scroll ld a, 0 ; write 0 to scroll registers X and Y ld [rSCX], a ; so visible screen is ld [rSCY], a ; at the top left of the background. ; now, you can turn off the LCD and load tiles, sprites, maps, etc