[stella] video memory

Subject: [stella] video memory
From: Glenn Saunders <krishna@xxxxxxxxxxxx>
Date: Thu, 11 Sep 1997 22:15:13 -0700 (PDT)

On Thu, 11 Sep 1997, Dan Boris wrote:
I think the fact that the 2600 does not have video memory is what makes it
so flexible. Look at the O2, it had 256 bytes of video memory, but it's
graphics where very inflexible. The 2600 would require far more the 256
bytes to be able to control the entire display with is as much detail as
it can without it. 

A 2600 game kernel in ROM kinda IS the video memory.  It is the algorithms
and supporting data which generate the display on a scanline by scanline
basis. PMG data for animations, color data for register changes, all that
takes memory, sometimes much more than the video memory in rival 1st gen

Solaris, for instance, banks in and out all the time during the mainline
kernel code.

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