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Re: IIe RGB cards



If you would be so kind, I'd like you to try something. On my first Apple
//e, it had the Extended 80-Column AppleColor card and the motorized RGB
monitor. What I'm curious to see is if some of the tricks I was able to pull
were exclusive to that RGB combination.

I can't remember the specifics of how I did these so it may take some
experimentation. In order, each of these is something I'm increasingly less
certain about being able to reproduce.

1. I remember being able to throw the system into a "double lores" mode that
gave 16 colors at 80x40 or 80x48 depending on the Mixed Mode setting.

2. I remember there being 3 distinct DHGR modes: B&W(560x192),
Color(140x192), and Mixed(both B&W and Color available at the same time, bit
7 of each video byte controlling the color signal)

3. I remember being able to pull this rabbit: a COLOR 40column text display
where text page 1x supplied the source values for each color, foreground
being the low nibble(i think) and background being the high nibble. I had
written several programs that made use of this colorized text, but when I
tried to run the same thing on my mothers //c+, it didn't work. So I began
to figure this was probably specific to the card and monitor combination.

Lately I've been working on an emulator that will allow for hardware plugins
to be used in each slot. That way, the program will really act in every way
like an Apple IIe system. So I need to know if these were actual features,
or just a mishandling of the video signal by that particular RGB setup I
had.

Thanks in advance.
R. King


"Wayne Stewart" <waynes@telus.dotnet> wrote in message
news:QCgNc.96702$Rf.8416@edtnps84...
> Ranando King wrote:
> > Do these mythical pieces of hardware still exist? I'm having the most
rotten
> > luck tracking one down. Preferably, I'd like to find the Extended 80
Column
> > AppleColor Card and a suitable monitor. There were certain little
"tricks" I
> > could pull on my Apple when I had one, but it's just not possible with
the
> > composite display. I'm hoping that even if I get one of the newer GS RGB
> > type cards and a monitor to go with it, I'll still be able to use the
same
> > undocumented features.
>
> Occasionally different ones show up on csas.marketplace. probably on
> ebay as well. I'm using an AE RGB option on my RamWorks.
>
> Wayne