RE: 6502 core / 128 mode (re: J-Board) (fwd)

From: Professor Dredd (profdredd_at_yahoo.com)
Date: 2001-03-12 10:33:43

Honestly, I don't know exactly why she chose to limit
it to 16 Mb video RAM. That's only a 24-bit register.
I think I'd have gone for 32-bits, assuming the board
could electrically support that much RAM.

--- jbevren@starbase.globalpc.net wrote:
> 
> 
> On Mon, 12 Mar 2001 ncoplin@orbeng.com wrote:
> 
> > Hi Jeri,
> > 
> > I'd stick with the base 65x02.... Especially
> because the lower outlay cost
> > will make a cheaper product all-round.
> > 
> > One question though, how were you intending to
> cope with the additional
> > memory mapping for the "up to 16Mb SDRAM" option? 
> If this is via register
> > set, it would be great if the tech info was
> available to we can standardise
> > the access method.
> > 
> 
> What's the resolution?  Even at 640x480, 16 bit,
> that's a SERIOUS chunk of
> video memory.  How's our lowly 8bitta gonna hack
> this?
> 
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