Untitled

.nolist
#include "ion.inc"
#include "keys.inc"

;Variables
VarX = saferam3
VarY = saferam3+1
.list
#ifdef TI83P
	.org	progstart-2
	.db	$BB,$6D
#else
	.org	progstart
#endif
	ret
	jr	nc,ProgramStart
	.db	"Test",0

ProgramStart:
	bcall(_ClrLCDFull)
	bcall(_IndicatorOff)
	
	ld	a,0
	ld	(VarX),a
	ld	(VarY),a
	jr	Display
	
MainLoop:
	bcall(_GetCSC)
	cp	skUp
	jr	z,North
	cp	skDown
	jr	z,South
	cp	skLeft
	jr	z,East
	cp	skRight
	jr	z,West
	cp	skClear
	ret	z
	jr	MainLoop
	
Display:
	ld 	b,8
	ld	a,(VarY)
	ld	l,a
	ld 	a,(VarX)
	ld 	ix,sprite
	call 	ionPutSprite
	call 	ionFastCopy
	jr	MainLoop

North:
	ld	a,(VarY)
	cp	0
	jr	z,MainLoop
	dec	a
	ld	(VarY),a
	jr	Display
	
South:
	ld	a,(VarY)
	cp	56
	jr	z,MainLoop
	inc	a
	ld	(VarY),a
	jr	Display

West:
	ld	a,(VarX)
	cp	88
	jr	z,MainLoop
	inc	a
	ld	(VarX),a
	jr	Display
	
East:
	ld	a,(VarX)
	cp	0
	jr	z,MainLoop
	dec	a
	ld	(VarX),a
	jr	Display
	
sprite:
	.db %00111100
	.db %01000010
	.db %10001001
	.db %10000101
	.db %10000001
	.db %10000001
	.db %01000010
	.db %00111100

.end
END