MIPS编程地址存储和加载 [英] MIPS Programming Address Storing and Loading

问题描述

我无法理解如何在MIPS中加载和存储特定地址.我需要获取一个项目的地址，并将其存储在另一个项目的单词中.如何将项目的地址作为单词加载，以便可以将其存储为单词?我将如何加载该单词并将其转换为地址?这可能吗?我需要能够像双向链接列表一样链接项目，其中每个项目都指向下一个.

I'm having trouble understanding how to load and store specific addresses within MIPS. I need to take the address of an item and store it within a word in another item. How do I load the address of the item as a word so it can be stored as a word? And how would I go about loading the word and turning it into an address? Is this possible? I need to be able to link items like a doubly linked list where each item points to the next.

推荐答案

当然，使用la获取标签的地址，并使用lw/sw从该地址加载/存储该地址或将其存储到某个地方.

Sure, use la to get the address of a label, and lw/sw to load/store that address from/to somewhere.

一个例子:

.data
list: .space 8*4

item1: .word 123

.text
.globl main
main:

la $a1,list     # a1 = address of list

la $t0,item1    # t0 = address of item1
sw $t0,($a1)    # store item1's address in the first word of list

# ...

lw $t0,($a1)    # t0 = address of item1
lw $a0,($t0)    # a0 = item1
li $v0,1        # syscall 1 (print_int)
syscall

li $v0, 10      # syscall 10 (exit)
syscall

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