Text tapes for my Nicolet always set bit 8. The binary is mixed. Some text the extra bit
is used for parity checking. It varies It is good to read everything. you can always post
process whatever you get. You can't process what you don't read.
Dwight
________________________________
From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Bill Degnan via cctalk
<cctalk at classiccmp.org>
Sent: Tuesday, July 21, 2020 7:36 AM
To: Mike Douglas <deramp5113 at yahoo.com>; General Discussion: On-Topic and
Off-Topic Posts <cctalk at classiccmp.org>
Subject: Re: windows program to read papertape from reader through serial port
As I think about it, I guess capturing an unknown ASCII 1" tape using 8-bit
(not 7 bit) makes the most sense as this will ensure I get everything.
WHen I compare and contrast I see the 8bit grabs the same data as the 7bit
capture, plus the extra 1 bit tacked on.
I am learning as I go, that's the fun of this hobby. Learn something new
all of the time.
I am working to extract Honeywell DDP-516 lunder landing data tape
(supposedly).....any Honeywell experts out there want a copy? SO far I
have done what appears to be the absolute loader (labeled "ABCT") and a
utility called 8X-MEDIC.
My hope it to be able to feed this tape into simH, and learn more about the
Honeywells of the time. I have a DDP516 front panel and some core memory,
which peaks my interest.
BIll
On Tue, Jul 21, 2020 at 7:51 AM Bill Degnan <billdegnan at gmail.com> wrote:
What I want to do is take an unknown nm own tape and
read it correctly.
Bill
On Tue, Jul 21, 2020, 3:14 AM Mike Douglas via cctalk <
cctalk at classiccmp.org> wrote:
> I?ve used Teraterm to receive and save binary paper tapes and ASCII paper
> tapes to files using the log function without any problem. When you say
> receive ?into an ASCII file,? what is the ASCII requirement you?re trying
> to satisfy? What is on the tape - text or binary data?
>
> Mike
>
>
>