joshbensadon via groups.io wrote:
Bob,
Thanks!? That really means a lot to me!? I just kind of thought nobody ever looks at the source code.
The part of the source code I love the most is the full duplex bit banged serial I/O.? There's been MANY bit banged I/O routines, but I've never seen a full duplex.
Josh's source code is a wonderful example of how to write and document assembler. It's worth spending some time to read it with careful concentration on the details.
There are many aspects that I like, but here are a few. One is his full-duplex interrupt-driven serial I/O routine. Another is his single-step routine. It can trace a program even through ROM. Yet another is that it can bit-bang an SD-card, and even figure out the byzantine PC FAT-16 director structure.
It's a masterpiece! :-)
Lee
--
A designer knows he has achieved perfection not when there is
nothing left to add, but when there is nothing left to take away.
-- Antoine de Saint Exupery
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Lee Hart, 814 8th Ave N, Sartell MN 56377, www.sunrise-ev.com
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Lee Hart