This pessage is based on the book namedThe x86 PC Assembly Language,Design,and Interfacing Fifth edition and make a summary to make better understand.
CPU addressing modes:
the way CPU access operands(data) called addressing mode
There are seven kind of distinct addressing mode.
- register
- immediate
- direct
- register indirect
- based relative
- indexed relative
- based indexed relative
Register addressing mode:
use register to hold the data
Examples are below:
MOV BX,DX
MOV ES,AX
Pay attention to the size of the registers,the different size of two register will cause a error!(like this)
ADD CL,AX;
Immediate addressing mode:
Sour

本文详细介绍了x86汇编语言的七种寻址模式,包括寄存器、立即数、直接、基址相对、索引相对、基址索引等,并通过例子解释了每种模式的工作原理。寻址模式解决了数据存储位置和数据大小的问题,帮助CPU有效地访问内存中的数据。
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