Date : Tue, 01 Aug 2017 13:27:58 +0100
From : beeb@... (Dr. David Alan Gilbert)
Subject: Small question about keyboard schematic
* nicola giacobbe (nicolagiacobbe@...) wrote:
> Hello everybody.
>
> While checking a schematic of the bbc micro keyboard I just noticed that
the keys 'underscore' and 'pound' seems inverted respect to a real keyboard.
I mean: in a real beeb keyboard you just press the key for underscore and
shift-it for the pound sign while in the schematic seems the opposite.
>
> Anyone could confirm that?
>
> I am reading a schematic extracted from the UG with a small title on the
bottom right: "Corrected by JGH, 14-Feb-2009".
I think this is a difference between prototype Beeb and the release
machines; my 'Assembly Language programming for the BBC Microcomputer'
book by Ian Birnbaum has the _ on the top; there are some other
minor quirks like no labelling on the f keys, and Break being marked
Reset.
<Googles for image>
http://www.oxfam.org.uk/shop/books/computing-and-internet/assembly-language-programming-for-the-bbc-microcomputer-hd_100838270
(Hell, why did I remember that? Last time I noticed that must have
been 20-30 years ago....)
Dave
--
-----Open up your eyes, open up your mind, open up your code -------
/ Dr. David Alan Gilbert | Running GNU/Linux | Happy \
\ dave @ treblig.org | | In Hex /
\ _________________________|_____ http://www.treblig.org |_______/