Subject: RE: Anyone got a plain ASCII Windows font?
From: "Richard A. Cini" <rcini at optonline.net>
Date: Sat, 27 Aug 2005 11:55:15 -0400
To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk
at classiccmp.org>
My Altair is configured for 8N1 as is the terminal (a Windows PC). For some
reason when I LIST a BASIC program I see >127 on some characters (mostly
punctuation). Typing in produces the right screen characters.
Maybe there's something else wrong?
I always used 7bit IO for terminals in that era. The base ASCII charset was
0-127 and bit 7 was often used by many programs to signal a format effector
or binary data. Some software actually translated the chars with bit 7 set
a set of control characters and reverse screen characters. The driver I used
for my VDM-1 did that (reverse or cursor required bit 7 to be set).
As a consequence all of my terminal drivers then and now for the 8bit world
(Altair basic and CP/M etal) mask bit 7 to Zero on recieve. If I needed a
8bit terminal IO I'd then use IObyte to select a different driver that
didn't mask.
Allison