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Joined 1 year ago
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Cake day: June 12th, 2023

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  • I’m using IDA for disassembly and DOSBox-X for debugging, still kinda learning the ropes in 16-bit DOS disassembly but am finding the right tools actually work pretty well, at least in a lot of cases.

    I looked at the 386 version (32 bit) of the Blue Wave mail reader and IDA did a great job of decompiling the key check function - I was very impressed - I was even able to copy and paste parts of the code from the decompilation into a keygen. Too bad IDA doesn’t decompile 16-bit code - I may have to look into Ghidra sometime for that.

    The MS-DOS debugger (DEBUG) is also surprisingly useful and powerful, considering its humble stature as ‘some old thing in the DOS directory’. ;) Using the DOSBox-X debugger has advantages, but the simple DOS DEBUG utility was enough to figure out a couple keygens too.






  • I am not very familiar with the A800 but there are a lot of wifi networking adapters and the such these days for all kinds of systems, many of them emulate modems so they are well-suited to interfacing with a BBS. “RS-232 wifi modem” as search terms gives a bunch of options.

    Also useful for old computers: http://theoldnet.com/ provides ways to use computers from the 1990s online today to access some websites etc.