我正在尝试写一个mips函数,它返回最大值的位置但是我得到了这个例子(/ home / ams / Bureau / part2a第21行中的错误:0x00400028处的运行时异常:地址超出范围0x00000000)
# MIPS assembly code
# $s0 = array base address, $s1 = i
# initialization code
main: lui $s0, 0x23B8 # $s0 = 0x23B80000
ori $s0, $s0, 0xF000 # $s0 = 0x23B8F000
addi $s1, $0, 0 # i = 0
addi $t2, $0, 1000 # $t2 = 1000
addi $t3, $0, 0 # $t3 = max
addi $s4, $0 , 0 # $s4 = max indice
max:
loop: slt $t0, $s1, $t2 # i < 1000?
beq $t0, $0, done # if not then done
sll $t0, $s1, 2 # $t0 = i * 4
add $t0, $t0, $s0 # address of array[i]
lw $t1, 0($t0) # $t1 = array[i] ERROR HERE
slt $t5, $t3, $t1 # max < array[i]
beq $t5, $0,else # if not then ense
addi $t3,$t1, 0 # $t3 =: array[i]
addi $s4, $s1,0 # $s4 =: i
#end
else:
addi $s1, $s1, 1 # i = i + 1
j loop # repeat
done:
addi $v0, $s4, 0 # retval = max
jr $ra # Return
有什么建议吗?
答案 0 :(得分:1)
您将$ s1设置为0,然后尝试取消引用它。也许你的意思是$ t0?
lw $t1, 0($t0)