内存间接寻址MOVL - 组装 [英] Memory indirect addressing movl - assembly

问题描述

我想了解究竟如何存储器间接使用汇编语言与AT＆安培的作品; T语法

I'm trying to understand how exactly memory indirect addressing works in assembly language with AT&T syntax.

movl (%eax), %ebx

movl %eax, (%ebx)

下面是一个类似的问题，解释有关存储器间接

Here is a similar question that explains about memory indirect addressing

这是我所理解的：

在第一种情况下，你负荷中的数据由寄存器％EAX 指出，并将其存储在％EBX 。

In the first case, you load the data pointed to by the register %eax and store it in %ebx.

在第二种情况下，你商店在寄存器％EAX 数据地址空间指向寄存器％EBX 。我是不是正确的？

In the second case, you store the data in the register %eax to the address space pointed to by the register %ebx. Am I correct?

推荐答案

基本上语法为

movl source, destination

所以 MOVL（％EAX），EBX％确实是拷贝值地址指向％到EAX EBX％。和 MOVL％EAX（％EBX）是寄存器％EAX里面的值复制到地址由EBX％指向。

So movl (%eax), %ebx is indeed copy the value at address pointed to by %eax into %ebx. And movl %eax, (%ebx) is copy the value inside register %eax into the address pointed to by %ebx.

因此​​，我们确实你的理解是正确的。

So indeed your understanding is correct.

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