Harvard vs. vonNeuman

From: Ethan Dicks <dickset_at_amanda.spole.gov>
Date: Mon Sep 27 23:50:50 2004

On Mon, Sep 27, 2004 at 07:32:06PM -0600, ben franchuk wrote:
> I have yet to see a good use for self-modifying code. Other than
> subroutines and interupts placing data into a code segement the only
> self modifying code I have seen was for the 8088.

Self-modifying code was somewhat common in the 6502 world. I have seen
(and written) several examples for the PET, VIC-20, C-64, and Apple II.

It's of limited use in cached architectures like the 68030, but it would
work fine with, say, the 68000, 68008, or 68010; but by that time, self-
modifying code was "out of fashion" (plus the 680x0 instruction set is
so much richer than the 6502 that there's much less need to try it).


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Received on Mon Sep 27 2004 - 23:50:50 BST

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