#define GPIO_BASE 0x80000000
#define DELAY 100

.globl _start
_start:
	lui a0, %hi(GPIO_BASE)
	addi a0, a0, %lo(GPIO_BASE)
	addi t0, zero, 0
	li t1, DELAY
.lp1:
	sb t0, 0(a0)
	addi t0, t0, 1
	and t2, zero, zero
time1:
	addi t2, t2, 1
	bne t1, t2, time1
	j .lp1