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Old 11th May 2021, 11:50 pm   #11
SiriusHardware
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Join Date: Aug 2011
Location: Newcastle, Tyne and Wear, UK.
Posts: 11,556
Default Re: MK14 computer with a OK-80a paper tape reader - what data required for the paper

I have the impression that JohnJones already has the following sorted:

-Replica MK14 from JMP

-Replica punched tape reader also from JMP and connected to the 8154 ports as per that supplier's instructions.

-A bit of software (supplied by JMP? which has to be typed in or loaded from tape possibly into the RAM I/O area, which does the actual reading / loading from tape.

The two areas for conjecture are:

What format is the reader software supplied by JMP expecting to find on the punched tape? Code as plain binary? Code as ASCII hex? Code as Intel Hex?

What file format will the punched tape supplier require the code supplied to them to be in?

JJ has provided the first - sequential raw binary, with the user manually supplying the first address to which to load the code - in other words exactly as per the tape interface.

For the second, the question needs to be asked of the punched tape supplier - if they are offering a punched tape 'programming' service then it is incumbent on them to explain what file formats they can accept.

There are other ways of getting code into an MK14 at fairly high speed without having to punch tape (search other MK14 threads here) but if JJ just likes the idea of getting the MK14 / Tape reader combination working as originally intended, that is a good and noble enough reason to do it.

Last edited by SiriusHardware; 11th May 2021 at 11:56 pm.
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