MIPS 組合語言 - 陣列
題意:
練習陣列存取資料。
程式碼:
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| .data | |
| a: .space 10 | |
| b: .space 400 | |
| ii: .word 0 | |
| jj: .word 0 | |
| kk: .word 0 | |
| temp: .word 4 | |
| .text | |
| lw $s2, ii #s2 = i | |
| lw $s3, jj #s3 = j | |
| lw $s4, kk #s4 = k | |
| lw $s5, temp #s5 = temp | |
| mul $s4, $s4, 10 #kk *= 10 | |
| add $t0, $s3, $s4 #t0 = jj + kk | |
| lb $s1, b($t0) #s1 = b[t0] | |
| add $t1, $s5, $s1 #t1 = tmp + s1 | |
| mul $t1, $t1, 10 #t1 *= 10 | |
| lb $s0, a($s0) #s0 = a[s2] | |
| sub $t1, $s0, $t1 #t1 = s0 - t1 | |
| sb $t1, b($t0) #b[t0] = t1 | |
| lb $t6, b($t0) | |
| li $v0, 1 | |
| addi $a0, $t6, 0 | |
| syscall |