Date   : Wed, 27 Feb 2008 13:58:32 +1100
From   : msmcdoug@... (Mark McDougall)
Subject: BBC FPGA and B flags

Mark McDougall wrote:

> * MODE 7 - I can force it into a hybrid non-interlaced mode atm, but the 
> 6845 core doesn't support interlace mode, so proper support is pending

Actually, on this note, my "hybrid" MODE 7 simply hard-wires the Nr register 
to 9 rather than 18 for interlace mode (Intr=&93) and Nvsp=&1B instead of &1C...

...so I'm thinking I can simply patch the MODE 7 6845 register table in ROM 
and have a somewhat functional MODE 7 display co-existing with MODES 0-6... yes?

Regards,

-- 
|              Mark McDougall                | "Electrical Engineers do it
|  <http://members.iinet.net.au/~msmcdoug>   |   with less resistance!"