Mips 加载自己的文件时QtSpim没有响应，加载其他文件时抛出错误
我正在尝试加载此文件，但QtSpim在加载时停止响应Mips 加载自己的文件时QtSpim没有响应，加载其他文件时抛出错误,mips,qtspim,Mips,Qtspim,我正在尝试加载此文件，但QtSpim在加载时停止响应 # Description : This program reads two user inserted integers and asks the # user which is their greatest common divisor. # If the user answers correctly the program congratulates the user, if # not, the user is asked to
# Description : This program reads two user inserted integers and asks the
# user which is their greatest common divisor.
# If the user answers correctly the program congratulates the user, if
# not, the user is asked to try again.
.text
.globl _start
_start:
la $a0, str1 # loads str1 address to $a0
li $v0, 4 # loads $v0 with the contents of $a0 to print it
syscall # prints str1
li $v0, 5 # reads the first user inserted integer from the console and
# stores it to $v0
add $a1, $v0, $zero # stores the first integer from $v0 to $a1
syscall # executes the previous commands
la $a0, str2 # loads str2 address to $a0
li $v1, 4 # loads $v1 with the contents of $a0 to print it
syscall # prints str2
li $v1, 5 # reads the second user inserted integer from the console
# and stores it to $v1
add $a2, $v1, $zero # stores the second integer from $v1 to $a2
syscall # executes the previous commands
la $a0, str3 # loads str3 address to $a0
li $v0, 4 # loads $v0 with the contents of $a0 to print it
syscall # prints str3
jal gcd # calls the method named gcd
syscall
gcd:
# y = a % b;
rem $a3, $a1, $a2 # stores the remainder of the division of the
# first integer with the second to $a3
# while (y != 0) {
# a = b;
# b = y;
# y = a % b;
# }
again:
# y = 0; break;
beq $a3, $zero goto exit # if the contents of $a3 equal zero,
# go to exit
syscall
# a = b;
add $a1, $a2, $zero # stores the contents of the 2nd integer to
# the register of the 1st
syscall
# b = y;
add $a2, $a3, $zero # stores the contentnts of y to the register
# of the 2nd integer
syscall
# y = a % b;
rem $a3, $a1, $a2 # stores the remainder of the division of
# the first integer with the second to $a3
j again # jumps to again to do the next iteration of the
# loop
syscall
exit:
jal printQuestion # calls the method named printQuestion
syscall
printQuestion:
loop:
li $v0, 5 # reads the user's answer from the console and
# stores it to $v0
add $s0, $v0, $zero # stores the user's answer from $v0 to $s0
syscall #executes the previous commands
# s = b;
beq $s0, $a2 goto end # if the contents of $s0 are equal with
# the contents of $a2
la $a0, str5 # loads str5 address to $a0
li $v1, 4 # loads $v1 with the contents of $a0 to print it
syscall # prints str5
la $a0, str6 # loads str6 address to $a0
li $v1, 4 # loads $v1 with the contents of $a0 to print it
syscall # prints str6
j loop # jumps to loop
end:
la $a0, str4 # loads str4 address to $a0
li $v1, 4 # loads $v0 with the contents of $a0 to print it
syscall # prints str4
.data
str1: .asciiz "Please insert the first integer : \n"
str2: .asciiz "Please insert the second integer : \n"
str3: .asciiz "Which is the GCD of the first and second integer? \n"
str4: .asciiz "Congratulations! \n"
str5: .asciiz "Wrong answer. Please try again. \n"
str6: .asciiz "Which is the GCD? \n"
编辑：我正在使用简单的机器设置。Spim希望用户代码从label main开始，因此如果没有它，运行代码时会出错 因此，您需要在标签和.global中将_start更改为main 在两个位置使用的beq$a3、$zero goto exit无效，因为beq命令要求$zero后面有一个逗号，并且要转到的标签-而不是“goto label” 您也有许多syscall语句，但是不要设置值v0 value-您假设它仍然是相同的，或者忘记了这样做？此外，在某些地方，当您可能打算为系统调用设置v0时，您似乎看到了v1 例如：
la $a0, str1 # loads str1 address to $a0
li $v0, 4 # loads $v0 with the contents of $a0 to print it
syscall # prints str1
li $v0, 5 # reads the first user inserted integer from the console and
# stores it to $v0
add $a1, $v0, $zero # stores the first integer from $v0 to $a1
syscall # executes the previous commands
la $a0, str2 # loads str2 address to $a0
li $v1, 4 # loads $v1 with the contents of $a0 to print it
syscall # prints str2
li $v0, 5 # reads the first user inserted integer from the console and
# stores it to $v0
add $a1, $v0, $zero # stores the first integer from $v0 to $a1
syscall # executes the previous commands
la $a0, str2 # loads str2 address to $a0
li $v1, 4 # loads $v1 with the contents of $a0 to print it
syscall # prints str2
代码中有重复的实例，以及在没有设置v0的情况下执行系统调用的地方。Spim希望用户代码从label main开始，因此如果没有它，运行代码时会出错 因此，您需要在标签和.global中将_start更改为main 在两个位置使用的beq$a3、$zero goto exit无效，因为beq命令要求$zero后面有一个逗号，并且要转到的标签-而不是“goto label” 您也有许多syscall语句，但是不要设置值v0 value-您假设它仍然是相同的，或者忘记了这样做？此外，在某些地方，当您可能打算为系统调用设置v0时，您似乎看到了v1 例如：
la $a0, str1 # loads str1 address to $a0
li $v0, 4 # loads $v0 with the contents of $a0 to print it
syscall # prints str1
li $v0, 5 # reads the first user inserted integer from the console and
# stores it to $v0
add $a1, $v0, $zero # stores the first integer from $v0 to $a1
syscall # executes the previous commands
la $a0, str2 # loads str2 address to $a0
li $v1, 4 # loads $v1 with the contents of $a0 to print it
syscall # prints str2
li $v0, 5 # reads the first user inserted integer from the console and
# stores it to $v0
add $a1, $v0, $zero # stores the first integer from $v0 to $a1
syscall # executes the previous commands
la $a0, str2 # loads str2 address to $a0
li $v1, 4 # loads $v1 with the contents of $a0 to print it
syscall # prints str2
代码中有重复的实例，以及在没有设置v0的情况下进行系统调用的地方。您发布的代码中包含带换行符的注释，因此它不会进行汇编。@Michael如果您在描述中谈论注释，它们在一行中。由于它们很长，所以在这里是这样显示的，但都在一行中。如果是这样的话，我不是会得到一个错误，而不是程序没有响应吗？编辑：每一条评论都在一行中，它们在这里就是这样显示的。如果它们都是单行评论，那么你应该编辑你的问题并解决它。否则，您的代码在其他人看来都已损坏。您仍有一条注释中有换行符。出于某种原因，您还在几个分支指令中使用了单词
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