Yes it is in octal. If you noticed the keypad has numbers from 0 to 7 so the
whole system works in base 8.
The R key is a hardwired reset.
and the A, B, and C keys are not used by the KEX program.
By the way this kit was also called the Mini Micro Designer (MMD-1) and was
distributed by Circuit Design, inc. for $125 in kit form.
Francois
-------------------------------------------------------------
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-----Original Message-----
From: Tony Duell <ard_at_p850ug1.demon.co.uk>
To: Discussion re-collecting of classic computers
<classiccmp_at_u.washington.edu>
Date: Thursday, April 16, 1998 6:17 PM
Subject: Re: 8080 Trainer - more info
>>
>> This Trainer was called the Dyna-Micro
>> Here is the Memory allocation:
>
>Thanks for this info (and thanks to Glenn for posting the ROM listing).
>It looks like I'll be able to get it working...
>
>> Hi Lo
>> 000 000 \
>> > Key Prom
>> 000 377 /
>> 001 000 \
>> > Optional ROM
>> 002 377 /
>
>I now have to work out which socket is which. Shouldn't take long - I
>recognise all the chips, have data one them, and it's quite simple. Don't
>spoil it for me by posting the answer just yet ;-)
>
>> 002 000 \
>> > Optional R/W Memory
>> 003 377 /
>
>002 377 ? I think. I assume you're using an octal representation of each
>byte of the address here - something 8080 people often did. I think I
>have the option RAM on my machine. At least, there are no spare sockets
>in that area (4 RAM chips fitted).
>
>> 003 000 \
>> > R/W Memory
>> 003 377 /
>> 004 000 \
>> > Available for user expansion
>> 377 377 /
>>
>> Will post more later
>> Does anyone knows where I can find a 1702 programmed with KEX?
>
>Well, if I get my machine working, I'll probably have to program a 1702
>on the old Intellec. In which case I'd be able to make a few for other
>people if they send me blanks.
>
>But it might just be easier to put it into a 2716 or 2764 and make up a
>kludge board (or if you're building a machine from scratch, just design
>the board to take one).
>
>> Francois
>
>-tony
>
Received on Thu Apr 16 1998 - 20:50:17 BST