AoCE Display Optimizations

display.z80

;out off, size
;320* 0-0*2,  2
;320* 1-1*2,  6
;320* 2-2*2, 10
;320* 3-3*2, 14
;320* 4-4*2, 18
;320* 5-5*2, 22
;320* 6-6*2, 26
;320* 7-7*2, 30
;320* 8- 15, 32
;320* 9-7*2, 30
;320*10-6*2, 26
;320*11-5*2, 22
;320*12-4*2, 18
;320*13-3*2, 14
;320*14-2*2, 10
;320*15-1*2,  6
;320*16-0*2,  2

; Input:
;  de = output position
;  hl = tile
; Output:
;  de = next output position
;  sp = lcdWidth+2
DisplayRow:
	ld a,9
DisplayTile:
	ld sp, lcdWidth-2
	ld bc,2
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 6
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 10
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 14
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 18
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 22
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 26
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 30
	ldir
	inc sp; lcdWidth-1
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 32
	ldir
	inc sp; lcdWidth
	inc sp; lcdWidth+1
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 30
	ldir
	inc sp; lcdWidth+2
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 26
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 22
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 18
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 14
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 10
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 6
	ldir
	ex de, hl
	add hl, sp
	ex de, hl
	ld c, 2
	ldir
	ld hl,32-lcdWidth*15-2
	add hl,de
	ex de,hl
	dec a
	jr nz,DisplayTile