split into several files

Code/utils.asm

@@ -0,0 +1,47 @@
+INCLUDE "hardware.inc"
+
+EXPORT MemoryCopy
+SECTION "Memory Copy", ROM0
+; hl = destination
+; de = source
+; bc = count
+MemoryCopy:
+	ld a, [de]
+	ld [hl+], a
+	inc de
+	dec bc
+	ld a, b
+	or c
+	jr nz, MemoryCopy
+	ret
+	
+EXPORT MemorySet
+SECTION "Memory Set", ROM0
+; hl = destination
+; d = data
+; bc = count
+MemorySet:
+	ld a, d
+	ld [hl+], a
+	dec bc
+	ld a, b
+	or c
+	jr nz, MemorySet
+	ret
+
+	; \1: sprite ID
+	; \2: X position
+	; \3: Y position
+	; \4: tile number
+	; \5: flags
+SetSprite: MACRO
+	ld hl, _OAMRAM + \1 * 4
+	ld a, \3
+	ld [hl+], a
+	ld a, \2
+	ld [hl+], a
+	ld a, \4
+	ld [hl+], a
+	ld a, \5
+	ld [hl+], a
+ENDM