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jmclnxlast Wednesday at 11:20 AM1 replyview on HN

That is one thing that was nice about DOS, you where close to the machine. I never fully got machine language, but it was fun trying.

IIRC, debug.com could be used to create programs using machine lang.


Replies

pjmlplast Wednesday at 11:48 AM

Yes, it was a quite bare bones experience when compared to TASM and MASM, and only worked for COM executable, but it did work.

The reasoning being that COM files were a plain memory dump starting at offset 100H, thus you would type the code in memory and then dump it.