Re: "easy" 6510 question

From: Rob Clarke <crock_at_clarke-family.org.uk>
Date: Sat, 8 Feb 2020 00:00:01 +0100
Message-ID: <4f1e3bfb-a7ee-5230-79c7-638de3eb0627_at_clarke-family.org.uk>
I'm sure it was on one of the datasheets that ports are always set to 
input on /RESET to avoid conflicts.

On 07/02/2020 23:43, Francesco Messineo wrote:
> On Fri, Feb 7, 2020 at 11:38 PM <groepaz_at_gmx.net> wrote:
>
>> "DDR and DATA are both initialized to 0 on powerup/reset. on the C64 pullup
>> resistors are installed on bits 0,1,2,4 which gives the inital standard memory
>> configuration."
>>
>> see https://sourceforge.net/p/vice-emu/code/HEAD/tree/testprogs/CPU/cpuport/
> so I remember incorrectly, that a memory configuration would survive a
> reset but wouldn't survive a power cycle on the C64?
>
> I may as well try myself one of these days :)
>
> Frank
>
Received on 2020-05-30 00:52:03

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