Ra user

 BBS: Inland Empire Archive
Date: 02-06-93 (13:37)             Number: 308
From: CORIDON HENSHAW              Refer#: NONE
  To: RICH GELDREICH                Recvd: NO  
Subj: Ra user                        Conf: (2) Quik_Bas
Hello Rich!

Tuesday February 02 1993, Rich Geldreich writes to Coridon Henshaw:

 >> I've got some interestion projects on my mind now, like a nodelist
 >> converter. A good estimate is that my converter would shrink the
 >> nodelist from 1.7 megs to 1.1 megs.

 RG>     How hard is that exactly? (I've never got my hands on the nodelist.)

Not that hard, the nodelist is in a real messy format.  It's all comma-
delimited fields, with very many limitations, like a BPS
rate field that can't go over 9600, so the flags have to be
used for anyone who has a modem that does 2400 or faster
(So you know what "standard" the modem uses).

To make things worse, there are non-standard flags in use,
and valid flags after a comment escape code.  It's a real
headache to handle all those things.

If you'd like to see one of the worse formatted listings
around, ask your sysop for a copy of the Fido nodelist, and
be ready to recieve 1.7 megs uncompressed, or 800K ARJed.

All I needed to do is replace each valid flag with one bit
in a four-byte flag block.  2 bytes of the flag block are
modem flags, and the other 2 are system flags.

 RG>     My latest project (which I've been doing on and off since '87) is
 RG> the generation of PI.

 RG> My first program, all-assembly on the 6809E
 RG> microprocessor, could generate
 RG> RG> about 2,000 digits in about 6 days or so...

I guess the 6809E ran at 1Mhz <grin>

 RG> My latest program in 80286 assembly can do it in under 7 seconds!
 RG> Now that's optimization!

Pritty good.

 RG> (Of course the 80286's DIV instruction didn't hurt - the 6809 didn't have
 RG> RG> one...)

I read that DIV is slower than downloading 100K at 300bps
;)  Couldn't you make it faster by using a replacement for

Coridon Henshaw

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