🚀 go-pugleaf

Lawrence D'Oliveiro, Waikato University (ldo@waikato.ac.nz) wrote:
> That 2000 frame-per-second rate would apply if you were just changing a
> copper-list register to point to a different image which is already in chip
> RAM (and as someone else has pointed out, 500 microseconds is really pretty
> slow for such a simple operation). Thus any claim that an Amiga can animate at
> this speed for any length of time (even with unlimited fast RAM) can't be the
> whole truth, and I claimed no more than this.

As I understand it that figure is for copying from a memory buffer
into the display buffer as I explained in a previous reply to your
posting. If it was just changing the copper list it could be done
probably close to a million times per second (since that is how long
the operation takes) or only 50 times per second (since changing
copper lists is normally tied to vertical blanking) and either case
you are wrong. As to claims that an Amiga can't animate may I point
out that if a 486 can do the animation then it will be no problem for
a fast Amiga.

> Lawrence D'Oliveiro                       fone: +64-7-856-2889

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Michael Cree                              Gold there is
cree@elec.canterbury.ac.nz                 and rubies in abundance;
                                          But lips that speak knowledge
                                           are a rare jewel. (Prov 20:15)
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