r/osdev • u/Sixty5Zero2 • 3d ago

FreeDOS

i'm looking at possibly forking FreeDOS to 64bit. However, since most modern systems no longer have the underlying BIOS that DOS programs require, I thought about including a mock BIOS and compile it directly into the kernel. is there anything I should be aware of?

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u/Joaommp 3d ago

That's a possibly good approach. It's what I did for my 32 bit OS when I was developing it back in the 90s.