Jim Leonard trixter at
Mon Jun 12 23:52:19 CDT 2006

Tony Duell wrote:
> IIRC, you could turn off the colour subcarrier, etc using a bit of one of 
> the output ports (I think this was done in Mode 2), this was worth doing 
> if you used a mono mnonitor. And I seem to rememebr you could get an 
> extra 4 colour palette on the RGB (DE9) output if you did this.

Correct on both counts; see the wikipedia entry for CGA for exact details.
Jim Leonard (trixter at  
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