我应该为这个问题做些什么,我需要存储这些值,并打印出一个矩阵,用户要求输入行数,列数和元素值,现在我甚至都没有知道我是否正确打印/存储部分,我试图打印输入的单个字符串,但它不起作用
.text
.globl main
main:
addi $v0, $0, 4
la $a0, str1
syscall #printing str1
addi $v0, $0, 5
syscall
la $t1, M1_1
sw $v0, 0($t1) #reading and storing the number of rows
addi $v0, $0, 4
la $a0, str2
syscall #printing str2
addi $v0, $0, 5
syscall
la $t2, M1_2
sw $v0, 0($t2) #reading and storing the number of columns
addi $v0, $0, 4
la $a0, str3
syscall #printing str3
addi $v0, $0, 5
syscall
la $t3, M1_3
sw $v0, 0($t3) #reading and storing the value of element
.data
str1:.asciiz "\“Please enter the number of rows in the matrix\n"
str2:.asciiz "\“Please enter the number of columns\n"
str3:.asciiz "\“Please enter the elements of the matrix\n"
.align 2
M1:.space 256
M1_1:.space 4
M1_2:.space 4
M1_3:.space 4
M2:.space 256
M2_2:.space 4
答案 0 :(得分:2)
在SPIM中单步执行代码后,行sw $v0, 0($t1)
似乎成了问题。我建议使用sw
命令,而不是使用$t0
将输入移动到寄存器move
中。在下面的代码示例中,我修改了您的代码,以演示如何将您作为输入接收的值保存到寄存器$t0
中:
.text
.globl main
main:
sub $sp , $sp , 4 # push stack
sw $ra , 0 ( $sp ) # save return address
addi $v0 , $0 , 4
la $a0 , str1
syscall #printing str1
addi $v0 , $0 , 5
syscall #get input
move $t0 , $v0 # save input in $t0
move $a0 , $v0
addi $v0 , $0 , 1
syscall #print first input
...
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