[GreenKeys] OT: Punching Human Readable Characters on 8 level tape?

[Charles]

Thanks... looks like you did just about the same thing I did, but a little fancier with auto leader/trailer 
It helps to have more instructions than the PDP-8 (which just about any microprocessor does, of course), and to have your char I/O already in ROM...
-Charles



From: David Tumey via GreenKeys 
Sent: Saturday, October 17, 2015 11:03 AM
To: Chris Elmquist ; Dave Horsfall 
Cc: Greenkeys 
Subject: Re: [GreenKeys] OT: Punching Human Readable Characters on 8 level tape?

This is a copy of an assembly language program I wrote called "TickerTape" or "TT".  It was written for the 6800 series CPU and should run OK on any 6800-based computer.  I use a StarKits SBC-02-B 6802 machine running HUMBUG.  The program makes input/output calls to MIKBUG routines and should run OK on the SWTPC platforms.  When executed, the program will store as many characters as you wish to type and when the <CR> is issued, each character will be turned into a 5x8 dot matrix that is punched on the tape (example in photo).  A leader and trailer of blank spaces &H00 are punched at the beginning and ending.  You can adjust how long the leader/trailer are as well as character spacing in the routine provided.  The lookup table can be modified to include punctuation if desired, currently the table has the alphabet and the numbers 0-9.  Email me if you have questions.


thanks.
--dave


--------------------------------------------------------------------------------
From: Chris Elmquist <chrise at pobox.com>
To: Dave Horsfall <dave at horsfall.org> 
Cc: Greenkeys <greenkeys at mailman.qth.net> 
Sent: Thursday, October 15, 2015 4:41 PM
Subject: Re: [GreenKeys] OT: Punching Human Readable Characters on 8 level tape?


Here's one in C that I found ages ago...

Chris NØJCF

On Friday (10/16/2015 at 04:24AM +1100), Dave Horsfall wrote:
> On Thu, 15 Oct 2015, Mike Douglas via GreenKeys wrote:
> 
> > If you're wanting to run it on a vintage computer, I have one that runs 
> > under CP/M on an Altair or similar computer and punches banners on a 
> > Teletype punch.
> 
> Wouldn't mind seeing that code; I have a CP/M emulator somewhere, and will 
> be acquiring a real box.  Dunno what I'll do about the paper tape, 
> though...
> 
> -- 
> Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."
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-- 
Chris Elmquist

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