Re: 85xx <------> 65xx Mutually replaceable?

From: Raymond C. Bryan (
Date: 2003-07-07 07:34:45

>t in this case, even the 6510 would not be able to see
>anything useful.
>What I see as possible candidates (the list is not complete, there might be
>other things, too):
>- the VIC-II itself
>- the PLA
>- the CIA#2 (which generates the address bus lines A14 and A15 for the VIC).

My experience concurs with Spiro - I have never seen a broken 225 Rom 
do the symptoms described - but the PLA or CIA can do that.
|Raymond C. Bryan  651-642-9890 vox      | The battle is sometimes |
|Raymond Computer  651-642-9891 fax      | to the small for 
|795 Raymond Ave   -email:  raycomp      | the bigger they are     |
|St Paul MN  55114          | the harder they fall.   |
|USA              Amiga - Commodore      |     -- James Thurber -- |

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