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Conference hydra::amiga_v1

Title:AMIGA NOTES
Notice:Join us in the *NEW* conference - HYDRA::AMIGA_V2
Moderator:HYDRA::MOORE
Created:Sat Apr 26 1986
Last Modified:Wed Feb 05 1992
Last Successful Update:Fri Jun 06 1997
Number of topics:5378
Total number of notes:38326

156.0. "68020" by AUTHOR::MACDONALD (CUP/ML) Tue Nov 04 1986 19:27

    I have seen ads for a 68020 upgrade with a math coprocessor
    that supposedly can increase math intensive operations on the Amiga
    by up to 500%. Two questions ...
    
    1.  The board runs less than $500. Anyone know if such
        an upgrade is compatible with existing Amiga software?
    
    2.  Anyone out there have a 68020 upgrade?
    
    Paul
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156.168020's supportedANYWAY::BROWNDoug BrownThu Nov 06 1986 13:4812
    In version 1.2 CA has included support for the 6010 and the 68020
    processors.  So, supposedly, you can jusat plug in the new processor
    and go.  The only mojor problem that I have heard about is that
    a few software products used a instruction that is privileged on
    the 68020.  They are suppoesed tobe rewritting thier products to
    fix this.
      It appears that CA has commited to maintaining upward compatability
    for the 68000 line.
      Could you post the address of the manufacturer of the board?
    
      db
    
156.2AUTHOR::MACDONALDCUP/MLThu Nov 06 1986 23:457
    Netch Computer Products sells a 68881 floating point coprocessor
    board. They say it has a 68010 emulating a 68020. They claim a
    300%-500%speed increase for mathg intensive operations.
    
    $459 assembled. Board replaces the 68000 internally.
    
    (818) 334-1002
156.3Commodore Has It Now!TLE::RMEYERSRandy MeyersFri Nov 07 1986 03:5112
Actually, version 1.1 already supports the 68010 and 68020.  Of the
software in the 1.1 release, only the calculator has any problems
(I have no idea why they didn't fix it).

Fish disk 18 has a tutorial on sticking a 68010 in your Amiga.  (The
biggest problem is that the 68000 socket is partially covered by the disk
drive.)  Also included, is a program that sets up an illegal instruction
trap to fix the problem of programs that use the privileged 68010
instructions in their user mode 68000 programs.

No, I haven't tried any of this.  My warranty is still in effect and
the thought of prying open my Amiga gives me the willies.