From: KC5TJA <kc5tja@topaz.axisinternet.com>
  To  : ggi-develop@eskimo.com
  Date: Mon, 6 Jul 1998 08:45:46 -0700 (PDT)

Re: kgicon difficulties |-< (and new tarballs |->)

On Mon, 6 Jul 1998, WolfWings ShadowFlight wrote:

> No, that's not true, actually. Yes, it's less effecient for 8, 16, 24, or
> any multiple of 8 bitplanes than a chunky mode, but for a 6-bit mode? Or a

We're talking about 8 bit-per-pixel modes only here.  :)  I think it was
already stated that bitplanes have the upper hand when discarding unneeded
information (such as unused color planes).

> Guess what, the blitter won't have to do any masking, only 4*bitplanes
> reads, 2*bitplanes shifts, 2*bitplanes oring and 2*bitplanes writes,
> assuming an 8-bit bus. Assume a 16-bit bus, it lowers it to 2*bitplanes

I'm well aware of this, as I just completed a software blitter for the PC
architecture, for use in Dolphin.  It does everything the Amiga's blitter
can do, only more flexibly (thanks to it being software), but more slowly
(also because it's software! :) ).

==========================================================================
      KC5TJA/6     |                  -| TEAM DOLPHIN |-
        DM13       |                  Samuel A. Falvo II
    QRP-L #1447    |          http://www.dolphin.openprojects.net