You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
47 lines
910 B
47 lines
910 B
INCLUDE "hardware.inc"
|
|
|
|
; The address of an internal OAM entry
|
|
; @param \1 16-bit register
|
|
; @param \2 OAM index
|
|
; @param \3 offset
|
|
MACRO ld_OAM
|
|
ld \1, _OAM + \2 * sizeof_OAM_ATTRS + \3
|
|
ENDM
|
|
|
|
; The address of an internal OAM entry's Y coordinate
|
|
MACRO ld_OAM_y
|
|
ld_OAM \1, \2, 0
|
|
ENDM
|
|
|
|
; The address of an internal OAM entry's X coordinate
|
|
MACRO ld_OAM_x
|
|
ld_OAM \1, \2, 1
|
|
ENDM
|
|
|
|
; The address of an internal OAM entry's tile index
|
|
MACRO ld_OAM_tile
|
|
ld_OAM \1, \2, 2
|
|
ENDM
|
|
|
|
; The address of an internal OAM entry's attributes
|
|
MACRO ld_OAM_attr
|
|
ld_OAM \1, \2, 3
|
|
ENDM
|
|
|
|
; Set an entry in the internal OAM (copied on next DMA)
|
|
; @param \1 OAM index
|
|
; @param \2 X coordinate
|
|
; @param \3 Y coordinate
|
|
; @param \4 Tile index
|
|
; @param \5 Attributes
|
|
MACRO OAM_set
|
|
ld_OAM_y hl, \1
|
|
ld a, \3
|
|
ld [hli], a
|
|
ld a, \2
|
|
ld [hli], a
|
|
ld a, \4
|
|
ld [hli], a
|
|
ld a, \5
|
|
ld [hl], a
|
|
ENDM
|