Re: DHGR Video Riddle Solved!!!

[Phoenyx <quazar@dcnet2000.com>]

I think you will find this because the DHR memory is supposed to be
accessed in a 28 bit fashion IE 4 bytes. These bits are then used by
the hardware to display color sequences. There was more info on this
related to the Apex system which included support for DHR and even used
some GS fonts for text. Sadly, the text width was limited to about 20
columns or so. Many of the Apex functions use this 28 bit method, even
the SCRN routine which required a little manipulation to get the exact
bit required. As mentioned, the DHR on my //c is better than the GS'
output. This surprised me since the author used a GS for developing it.
Perhaps he used a composite monitor. Apex also offered a method to put
the system into a 'mono' mode. This also didn't work on my //c but does
work on my GS. This allows that it is possible to toggle the mono bit
but I don't know how this was done.

As for the 'other' DHR mode. It may be pointless since it will only be
available on the IIe. The GS, as mentioned won't support it and the //c
won't either because it has no user accessible annunciators.

-- 

Thank you for your time and interest. I hope it was helpful
or at least interesting.

Phoenyx,

Apple2 user since March 1984

Links to Phoenyx's pages:
preferred..... http://zip.to/Phoenyx_A2
alternate..... http://www.tinyangeldesigns.com/Apple2