计组第3周互评作业2

xiaoxiao2021-02-28  14

.data m_success:.asciiz "\r\nSuccess!Location:" m_fail: .asciiz "\r\nFail!\r\n" print_line:.asciiz "\r\n" buffer: .space 100 .text .globl main main: la $a0,buffer la $a1,100 li $v0,8 #read string syscall cin: li $v0, 12 #read character syscall li $t0,63 #'?' sub $t1, $t0, $v0 beqz $t1,exit la $s1, buffer li $t0,0 loop: lb $s0,($s1) sub $t1,$v0,$s0 beqz $t1,success addi $t0,$t0,1 beq $t0,$a1,fail addi $s1,$s1,1 j loop success:la $a0, m_success li $v0, 4 # print string syscall addi $a0, $t0, 1 li $v0, 1 # print integer syscall la $a0, print_line li $v0, 4 syscall j cin fail: la $a0, m_fail li $v0, 4 syscall j cin exit: li $v0, 10 syscall
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