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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

1802.0. "setpatch: disk vs. ROM KS code" by VTHRAX::KIP (G.M. Landingham 293-5297) Fri Oct 21 1988 13:10

    I don't recall any distinction being made between ROM and disk based
    Kickstart code for setpatch.
    
    Under the assumption that the Kickstart code is read from the disk
    into memory on cold start, if the ROM code is copied to memory also,
    I should think you could still patch it.  Unless the disk-based
    Kickstart code already contains the patches??
    
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1802.1BAGELS::BRANNONDave BrannonFri Oct 21 1988 13:3614
    The Kickstart disk on the A1000 is the equivalent of the ROM.
    It doesn't load into normal memory, it loads into 256K of
    private memory that is then write protected and appears to the
    system as ROM.
    
    The patch feature is the "ROM tags in RAM" that was introduced with
    KS 1.2.  The system uses that feature to determine if you want to
    use a ROM routine or your own.  I believe Andy Finkel used that
    for the SETALERT fix because the ROM SetAlert routine had problems on
    systems that had RAM located at C0000000, like the A2000 and 1Meg
    A500s.
    
    -dave
1802.2KS -> ROM?WJG::GUINEAUSomewhere else in timeFri Oct 21 1988 14:034
I had a (for CBM) rather un-nerving thought. Could I (and some clever hacking)
take the KS 1.3 disk in my upgrade "kit" and blast a ROM?

John
1802.3MTWAIN::MACDONALDWA1OMM 7.093/145.05/223.58 AX.25Fri Oct 21 1988 19:351
    Well, how 'bout a NoKlickStart for the 2000 to eliminate drive klicking?
1802.4BAGELS::BRANNONDave BrannonFri Oct 21 1988 20:0914
    re:.2
    
    It was just mentioned on usenet that there is a program that will
    read the KS and output the contents in the right format for an
    EPROM burner.  I believe it said you would need four EPROMs
    (costing about $10 each).  Given that CBM is selling the real thing
    for $45....
    
    -Dave
    p.s. Is anybody doing a daughter board for the ROM socket, so that
    a toggle switch will let you switch between ROMs?  Given the number
    of changes to the ROM planned for 1.4, it might be nice to be able
    to run the KS 1.2 for badly programmed applications.