x86汇编结构体和宏

Описание: x86汇编结构体和宏
1）汇编结构体介绍
x86汇编咱们终于要完成了哦，再坚持一下下周咱们进入x64的学习。在汇编语言中结构体是一种将多个不同类型的数据项组合在一起的数据类型。结构体允许咱们以一种有组织的方式来表示复杂的数据结构，举个例子如描述一个人的信息如姓名,年龄,地址等。
由于汇编语言本身没有内置的结构体支持，因此需要手动模拟结构体的行为。这通常通过定义一系列连续的内存位置来表示结构体的成员，并使用符号名称来引用这些成员的偏移量。
在汇编中定义结构体，定义结构体实际上是定义一组符号常量，这些常量表示结构体成员相对于结构体起始地址的偏移量。
Person STRUCT
name db 32 dup (?) ; name ,32size
age dw ? ; age ,2size
address db 64 dup (?) ; address,64size
Person ENDS

2）汇编宏介绍
宏Macros是一种在汇编时被展开的文本替换工具。它们允许你定义一段代码模板，然后在代码中多次使用这个模板，每次使用时可以根据需要进行参数替换。宏的主要优点是减少代码重复,提高代码可读性和可维护性。
定义宏
在汇编中，使用MACRO和ENDM指令来定义宏。
MyMacro MACRO param1, param2
mov eax, param1
add eax, param2
ENDM

3) 案例

x86 Assembly Structures and Macros
1) Introduction to Assembly Structures
We are finally nearing the completion of our x86 assembly journey! Just hang in there a little longer; next week, we will dive into the study of x64 assembly. In assembly language, a structure is a data type that groups together multiple data items of different types. Structures allow us to represent complex data structures in an organized manner—for instance, describing a person's information, such as their name, age, address, and so on.
Since assembly language itself lacks built-in support for structures, we must manually simulate their behavior. This is typically achieved by defining a series of contiguous memory locations to represent the structure's members, and by using symbolic names to reference the offsets of these members relative to the structure's starting address.
When defining a structure in assembly, what you are actually doing is defining a set of symbolic constants; these constants represent the offsets of the structure's members relative to the structure's base address.
Person STRUCT
name db 32 dup (?) ; name, size: 32 bytes
age dw ? ; age, size: 2 bytes
address db 64 dup (?) ; address, size: 64 bytes
Person ENDS

2) Introduction to Assembly Macros
Macros are text-substitution tools that are expanded during the assembly process. They allow you to define a code template and then reuse that template multiple times throughout your code, substituting parameters as needed with each usage. The primary advantages of macros are that they reduce code redundancy and enhance code readability and maintainability.
Defining Macros
In assembly, the `MACRO` and `ENDM` directives are used to define a macro.
MyMacro MACRO param1, param2
mov eax, param1
add eax, param2
ENDM

3) Case Study / Example
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