My first Game Boy homebrew game
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825 B

DMACODELOC EQU $ff80
OAMDATALOC EQU _RAM ; must be multiple of $100
OAMDATALOCBANK EQU OAMDATALOC/$100
OAMDATALENGTH EQU $A0
LoRamBase SET OAMDATALOC + OAMDATALENGTH ; low area of RAM for storing variables
LoByteVar: MACRO
\1 EQU LoRamBase
LoRamBase SET LoRamBase+1
ENDM
RSSET OAMDATALOC
SpriteAttr: MACRO
\1YAddr RB 1
\1XAddr RB 1
\1TileNum RB 1
\1Flags RB 1
ENDM
;set XAddr of sprite.
;format:
; PutSpriteXAddr SpriteName,r8
; PutSpriteXAddr SpriteName,n8
PutSpriteXAddr: MACRO
push af
ld a,\2
ld [\1XAddr],a
pop af
ENDM
;set YAddr of sprite.
;format:
; PutSpriteYAddr SpriteName,r8
; PutSpriteYAddr SpriteName,n8
PutSpriteYAddr: MACRO
push af
ld a,\2
ld [\1YAddr],a
pop af
ENDM
GetSpriteXAddr: MACRO
ld a,[\1XAddr]
ENDM
GetSpriteYAddr: MACRO
ld a,[\1YAddr]
ENDM