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Hello!

I'm desparetly wondering how can I disallow programs to access memory that are outside of their space. Actually, how to implement a virual memory system... My target CPU is a motorola 68020 or 68000.

Thanks in advance.

I suggest your first step would be to get into Protected Mode. There, you can set limitations for where programs can go, and where they can't. To step up everything is a bit hard though. It would be best to look up some tutorials about getting into Protected Mode.

Protected mode is an intel-ism, 68k processors are motorola.

ComputerPSI, a division of my job works with Motorola proc's... I'll see what I can find out about memory protection.

Cheers,
Jeff