Alan, I just checked the Scelbi 6800 and Z-80 cookbooks and
couldn't find the code to which you refer.  In fact, the
main conversion routine for both books, is ASCII to BAUDOT (!).

Cheers,
Andrew


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---- On    , Alan B. Pearce (A.B.Pearce@RL.AC.UK) wrote:

> I have been looking at the code on the piclist website for
doing bin to
> hex
> ASCII conversion, and I'm sure there is a simpler way. I have
seen some
> cunning code originally done for use on an 8080 or z80, and I
was sure
> it
> was in the Scelbi 8080 cookbook that I have, but I cannot
find it in
> there.
>
> It used the DC flag in a an extremely cunning way to detect
the point at
> which you go from 9 to A in the sequence by using the DAA
instruction,
> and
> used only about 5 or 6 8080 instructions without a single
branch. I
> would
> like to try and convert it to a pic although the lack of a DAA
> instruction
> may not make this practical.
>
> Can anyone else remember the code segment I am talking about?
It may
> have
> been in a z80 cookbook, or it could have been in a piece of
Intel source
> code for the development system bios. It always looked such a
nice piece
> of
> code that makes the common comparing to ASCII characters and
doing jumps
> look extremely clumsy.
>
> I would appreciate getting hold of a copy of it if anyone has
it.
>
> Thanks.
>
> --
> http://www.piclist.com hint: PICList Posts must start with
ONE topic:
> [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,
[AD]: ->Ads
>
>
>
>

--
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