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中国DOS联盟论坛 » DOS开发编程 & 发展交流（开发室） » How to do disassembly View 1,436　Replies 5

Original Poster Posted 2003-05-06 00:00　·　中国台湾教育网(TANet)

ibuki

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Experts, I'd like to ask how to disassemble DOS executable files (such as .COM and .EXE).
After modifying them, how do you assemble them back again? (Please let me know, thanks)

Floor 2 Posted 2003-05-06 00:00　·　中国湖北武汉电信

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For general simple modifications, you can use tools like PCTools.

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Floor 3 Posted 2003-05-07 00:00　·　中国台湾教育网(TANet)

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I already went and downloaded PCTools 90, but I don't know how to use it. Could you explain it?
This is my first time dealing with this kind of tool (though I do have experience writing C language on Unix)

Floor 4 Posted 2003-05-07 00:00　·　美国肯塔基州费耶特县列克星敦 Charter_Communications

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Using the U command in DEBUG to disassemble works too. Just use the A or E command to modify it and then save it.

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Floor 5 Posted 2003-05-08 00:00　·　中国台湾教育网(TANet)

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Is there a simple example explanation?

Floor 6 Posted 2003-05-08 00:00　·　加拿大 Telus

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For example:
DEBUG A.COM
-U
...
...

That will do!

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