From: Marko Mäkelä (marko.makela_at_hut.fi)
Date: 2003-06-09 15:49:02
On Mon, Jun 09, 2003 at 05:32:28AM -0500, David Wood wrote:
> to do data transfers, a synchronous protocol is used on clk and data to
> ensure that neither system misses a bit transfer. Its incredibly slow (I
> think it may actually be slower than IEC) but it gets the job done and never
> loses a bit.
So, it's similar to the loader I wrote for the Veni vidi Vic demo in 1996.
With that loader, the computer can be interrupted at any time during the
transfer. The loader is also used in the VIMM demo, where it also
supports the 1581 disk drive.
I'm not planning to support fastloaders in the first version. The Atmel
AVR family is quite inflexible in that area, because self-modifying code
is not possible, unless some sort of a virtual machine or interpreter is
implemented.
Marko
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