.file	"key_onoff.c"
	.text
	.align	2
	.global	_start
	.type	_start,function

_start:
	mov	r0, #0x4000000
	ldr	r0, [r0, #0x130]	@ r0 = read_io(0x4000130) 
	ldrh	r1, [pc, #0x24]		@ r1 = 0x384 key:L+R+D+SEL 
	ldrh	r2, [pc, #0x22]		@ r2 = 0x3ff
	and	r0, r0, r2		@ r0 = r0 & 0x3ff
	ldr	r2, [pc, #0x1c]		@ r2 = static_addr(isOn)
	ldrb	r3, [r2]		@ r3 = *isOn
	cmp	r0, r1
	eoreq   r3, r3, #1		@ if r0 == key then *isOn = !r3
	streqb	r3, [r2]
	cmp	r3, #0
	bne	_next   		@ if r3 != 0 then next else return
	bx	lr

_const:
	.long	0x03ff0384
	.long	0

_next:
	.long	0xFFFFFFFF