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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

5294.0. "A fix for 32bit DMA problem." by VIVIAN::D_VISTUER () Fri Dec 20 1991 20:17

    I have been making some inquires into DMA loading problems with the
    A5000 from SSL and Mega Midget Racer and it seem to me that with these
    accelarators installed you can have severe DMA I/O problems with speeds
    being sometimes slower than a floppy.
    But there is a cure which (provided you have the memory) can restore
    your DMA I/O rate to within 10% of what it is with the 68000/010
    installed.
    It comes in the form of a patch and according to the writer is placed
    in the startup-sequence as the first line. It performs it's magic and
    voila you can DMA quite nicely into 32 bit ram.
    I will upload it to eot:: but need to know the results/problems you get
    so I can pass them on.
    
    So, do I have any takers ???.
    
    Regards.
    
    
    Dave.
    
    P.S. The memory required is not vast.
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