On 4 March 2013 17:55, Matt Shaver <[email protected]> wrote:

> 1. The HAL component would accept so-many row bits and so-many column
> bits as address inputs to a character ROM.

As it happens, I was wrong here. The 7i73 matrix keyboard output is a
byte-stream of scan codes.

> 3. The data output of the character ROM would be sent to wherever it
> should go. This is probably the problem area as far as implementation
> goes, or it would be for me.

Indeed. The rest I can readily see how to do.

Tunnelling up from the HAL layer to a gui-visible keypress sounds challenging.

-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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