x           x0	zero
x           x1	ra
x           x2	sp
x           x3	gp
x           x4	tp
x           x5	t0
x           x6	t1
x           x7	t2
x           x8	s0
x           x9	s1
x           x10	a0
x           x11	a1
x           x12	a2
x           x13	a3
x           x14	a4
x           x15	a5
x           x16	a6
x           x17	a7
x           x18	s2
x           x19	s3
x           x20	s4
x           x21	s5
x           x22	s6
x           x23	s7
x           x24	s8
x           x25	s9
x           x26	s10
x           x27	s11
x           x28	t3
x           x29	t4
x           x30	t5
x           x31	t6