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Old 05-28-2012, 12:32 AM   #1
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Join Date: May 2012
Location: England
Posts: 9
Default Assembly code question

When I had my Windows laptop, I downloaded FASM and out of curiosity, opened one of the DLLs that came along with it. I noticed it had a long list of what looked like system variables or constants and noticed that if I put the value of one of these in once of the sample programs, I could get the machine to do different things. Eg, one of them popped open the disc drive, another played a Windows sound, another one would change the value of the keys on the keyboard etc.

Now I'm on Linux, I use NASM, but I would like to know how I can do the same things as mentioned above and what this activity is called. I thought it would be called system calls, but that seems to be something else.
Django Fawkes is offline   Reply With Quote

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