没有任何字符串,这个程序运行良好。但是,当我添加代码块时,上面写着“如果我把这个块拿出来运行”,我会收到一个错误,上面写着“在这里导致错误”。我得到的错误是“0x00400028 处的运行时异常:地址超出范围 0x00000002”
我不知道为什么会收到此错误。我看不出打印字符串会给我一个错误,试图从堆栈中打印一个 int。
我已经尝试解决这个问题几个小时了,但我没有找到 MIPS 的太多帮助或资源,因此任何帮助将不胜感激并标记为有用。
.data
.align 2
list: .space 40 #an array of 10 ints
blank: .asciiz " "
mess: .asciiz "The values in the array are "
.globl main
.text
main:
jal read
li $v0, 4
la $a0, mess
syscall
jal print
jal total
jal average
lw $a0, 0($sp) #load avererage from stack
li $t0, 1 #print it
syscall #causes ERROR here ############
b done #end program
#reads in 10 digits into array
read:
li $v0, 5 #prompts for int
syscall
sw $v0, list($t0) #stores int in array
addi $t0, $t0, 4 #holds the number 4
blt $t0, 40, read #repeats until array is full
jr $ra #return to caller
#prints array
print:
lw $a0, list($t1) #loads int from array
li $v0, 1 #print int
syscall
li $v0, 4 #if I take this block out it runs ########
la $a0, blank #
syscall #
addi, $t1, $t1, 4 #counter
blt $t1, 40, print #repeats until array it full
jr $ra #return to caller
#adds the total of all array elements
total:
lw $t3, list($t2) #gets ints from array
add $s0, $s0, $t3 #adds number to running total
addi $t2, $t2, 4 #counter
blt $t2, 40, total #repeat until all ints are added
addi $sp, $sp, -4 #allocate space on array
sw $s0, 0($sp) #store total on stack
jr $ra #return to caller
#divides the total by 10, for the average
average:
lw $a0, 0($sp) #gets the total from the stack
addi $t4, $t4, 10 #10 to divide by
div $a0, $t4
mflo $t5
sw $t5, 0($sp) #store aveg in stack
jr $ra
done: