OSDev.org

I write assembler including calling gate,and my compiler is masm5.0,
I run it in pure dos,but PC always restart,I want to debug codes,
who could tell me how to debug codes in detail?what tool do I use?

Have you bothered checking the wiki out? It has articles on what tools you can use to do just what you've asked.

salil_bhagurkar wrote:Have you bothered checking the wiki out? It has articles on what tools you can use to do just what you've asked.

Could you tell which article,or could you tell me the link address?

I read some articles,and I find they are almost articles about debug OS,
but my code isn't OS,I compile my codes to exe file using masm5.1,
who could tell me how to do?

this forum is called

OSDev forum

It's for people making operating systems. OS-unrelated questions don't go here...

I would suggest you try general assembly coding forums first.

If you're working in Windows or DOS try to make a simple DOS program with assembly first. Find out how to make a COM program and make it do nothing, succesfully. Once that works, expand on it a small step at a time, finding out how to debug in the meantime.

As an alternative, if you know Visual Studio try writing your assembly code in "C" like so:
That way, the program-wrapping is done for you and you can start it from Visual Studio with a debugger. This should also work in Visual C++ Express Edition.