.section .text
	.global  usleep
	.type    usleep, @function
usleep:
.L1:   
	cmpi     r0,0x00
	bnz      .L2
	cmpi     r1,0x00
	bz       .L3
.L2:
	nop
	nop
	nop
	subi     r0,1
	subic    r1,0
	b        .L1
.L3:
	ret