在组装中，"PTR"代表什么? [英] In assembly, what does `PTR` stand for?

问题描述

and     dword ptr [ebp-4], 0

在上面的汇编代码中，这个术语 PTR代表什么? 我知道它们的用法-大小指令；但是这个术语 PTR是从何而来的呢?它代表PoinTeR吗?

In assembly code like above, what does the term PTR stand for? I know their usage -- size directives; but where had the term PTR been coined from? Does it stand for PoinTeR?

我读过:

• dword ptr是什么意思?
• x86组装指南
• []和PTR运营商的含义?? ?

• What does dword ptr mean?
• x86 Assembly Guide
• Meaning of the [] and PTR operators???

推荐答案

此提示的目的是告诉操作数的大小.

The point of this hint is to tell the size of the operand.

您正在写入内存中的某个点.由于您只给出了0，所以它不知道是否应该写入字节，字或双字. dword ptr的意思是写一个双字".是的，它代表指针，因为您将内存地址作为目的地.

You're writing to a point in memory. As you're only giving a 0, it doesn't know if it should write a byte, or word, or doubleword. The dword ptr means "write a doubleword". Yes, it stands for pointer, because you put a memory address as destination.

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