pokecrystal-board/engine/gfx/placegraphic.asm
mid-kid 97c511cd2f Organize the engine/ directory, take 2
Renamed `game` to `games` and `menu` to `menus`.
Moved some functions from `engine/routines/` to their fitting subdirectories.

Made two new subdirectories:
* engine/rtc: Contains all RTC-related things. Menus, hardware, misc
functions.
* engine/items: Contains all item-related things. Pack, item effects,
other item handlers.
2018-03-14 13:28:36 +01:00

56 lines
579 B
NASM

PlaceGraphic: ; 2ef6e
; Fill wBoxAlignment-aligned box width b height c
; with iterating tile starting from hGraphicStartTile at hl.
ld de, SCREEN_WIDTH
ld a, [wBoxAlignment]
and a
jr nz, .right
ld a, [hGraphicStartTile]
.x1
push bc
push hl
.y1
ld [hl], a
add hl, de
inc a
dec c
jr nz, .y1
pop hl
inc hl
pop bc
dec b
jr nz, .x1
ret
.right
; Right-aligned.
push bc
ld b, 0
dec c
add hl, bc
pop bc
ld a, [hGraphicStartTile]
.x2
push bc
push hl
.y2
ld [hl], a
add hl, de
inc a
dec c
jr nz, .y2
pop hl
dec hl
pop bc
dec b
jr nz, .x2
ret