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From: d88-jwa@hemul.nada.kth.se (Jon Wtte)
Subject: Re: What is "ROM accelerated video"?
Message-ID: <1993Apr16.090835.630@kth.se>
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Date: Fri, 16 Apr 1993 09:08:35 GMT
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In <1qknuq$9ut@agate.berkeley.edu> c60b-3jl@web-4f.berkeley.edu (James Wang) writes:

>addressing modes.  commands that do fills should be slightly faster
>since the new instructions fetch 2 bytes at a time versus one.

Even the 68000 can fetch two bytes at a time.

The new instruction in the 68040 is MOVE16 which fetches 16 bytes
at a time instead of 4 which the 68030 has; that means 4 24bit
pixels instead of one.

Cheers,

					/ h+
-- 
 -- Jon W{tte, h+@nada.kth.se, Mac Hacker Deluxe --

   This article printed on 100% recycled electrons.
