Re: Software for MS-DOS 1.25

I have designed  a small colour circuit for the CBM-II very similar to my ColourPET board but I haven't prototyped it yet. It would use the $C000 area for colour attributes (or with a few more changes, font attributes). If anyone is interested the info is available on my page here: The Colour CBM-II (aka Colour-Bee) Project
  
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The Colour CBM-II (aka Colour-Bee) Project
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I put the project on hold while I complete (someday) the ColourPET project, but if there is enough interest I could work on it again.
Steve

      From: Mia Magnusson <mia@plea.se>
 To: cbm-hackers@musoftware.de 
 Sent: Sunday, November 5, 2017 6:25 AM
 Subject: Re: Software for MS-DOS 1.25
   
Den Sun, 5 Nov 2017 06:43:42 +0000 skrev smf <smf@null.net>:
> On 04/11/2017 21:24, Michał Pleban wrote:
> 
> > I am attaching my preliminary version of the font. It should have
> > all the graphic characters needed to replicate what is used on the
> > PC.
> 
> How does it compare displaying graphics but losing reverse video?
> Have you considered supporting blinking? I guess there is no option
> for underline and bright attributes though.

That would require hardware changes in the video circuit of the CBM-II.

Adding a second set of U29 and some glue logic could add an attribute
memory. To be compatible with existing CBM-II software it would
probably be best to have two sets of fonts, the standard PETSCII and a
standard PC8 font. That could also add for example color (or grayscale
for the CBM-II HP if it's not too hard to add analog signal levels to
the monitor).

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