Lines Matching refs:a0
48 li a0, EFAULT
66 1: lb a4, 0(a0) /* Load from kaddr */
67 addi a0, a0, 1
75 2: li a0, 0 /* return 0 */
86 add a3, a0, a2
93 1: lb a4, 0(a0) /* Load from uaddr */
94 addi a0, a0, 1
102 2: li a0, 0 /* return 0 */
119 1: bgt a7, a0, copyio_fault
120 lb a4, 0(a0) /* Load from uaddr */
121 addi a0, a0, 1
135 4: mv a0, x0 /* return 0 */