问题描述
如何在编译时从ASM源文件中检测目标体系结构是I386还是AMD64?
How can I detect at compile time from an ASM source file if the target architecture is I386 or AMD64?
我正在使用masm(ml.exe)/masm64(ml64.exe)组装file32.asm和file64.asm.创建单个文件file.asm会很好，根据架构的不同，该文件应包含file32.asm或file64.asm.理想情况下，我希望能够编写如下内容:
I am using masm(ml.exe)/masm64(ml64.exe) to assemble file32.asm and file64.asm. It would be nice to create a single file, file.asm, which should include either file32.asm, or file64.asm, depending on the architecture. Ideally, I would like to be able to write something like:
IFDEF amd64
include file64.asm
ELSE
include file32.asm
ENDIF
此外，如果需要，我可以使用不同的命令行选项运行ml.exe和ml64.exe.
Also, if needed, I can run ml.exe and ml64.exe with different command line options.
谢谢！
推荐答案
如果我对您的理解正确，那么您正在寻找某种内置定义，该定义在32位和64位MASM版本中具有不同的值.我曾经寻找过类似的东西，但没有找到合适的东西.
If I understand you correctly, you're looking for some sort of built-in define that has a different value among 32 and 64 bit MASM versions. I once looked for something like that, but didn't find anything suitable.
但是，只需定义自己的定义就很容易了，例如在源文件的开头选择AMD64 equ 1来选择所需的代码路径，或者在ML/ML64命令行上选择AMD64 equ 1.然后按照您的建议使用IFDEF/IFNDEF.
However, it's easy enough to just define your own, e.g. AMD64 equ 1 at the start of your source file to select your desired code path, or at the ML/ML64 command-line, like /DAMD64. And then use IFDEF/IFNDEF, as you suggest.
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