Question

I have a problem. I need to load a .com file into memory do something and then unload it. I’m going to use int 21 ah=4bh and al=1, which will do everything I need, and give me enough information for future manual execution of this file. After execution I need to unload file from memory, but I don’t know how to do this.
I don’t use any assemblers, I’m writing in HEX, but I will be glad, if you’ll advice me something, I could use to compile native MS-DOS x16 .com

Answer 1

You should be able to use LZASM for this:

http://protools.winasm.net/lzasm.html

It would probably be easier to use Turbo Pascal 3.0 to create .COM files which is freely available from:

http://edn.embarcadero.com/article/20792