Re: P500 Conversion from PAL to NTSC

Re: P500 Conversion from PAL to NTSC

From: B Degnan <billdeg_at_degnanco.com>
Date: Sun, 12 Jul 2009 09:00:45 -0400
Message-ID: <4A59DE7D.4000207@degnanco.com>
Steve,
Thanks for the link, I did actually read and use this info while 
working.  If I have significant updates or learn something new that 
others may benefit from, I will post here.
Bill

STEVE GRAY wrote:
> Simple C64 basic programs can be converted quite easily to run on the P500 with a simple change to the SID's start address. No tempo changes are required as the C64 and P500 have the same clock speed. I also managed to convert the C64's "Master Composer" player to run on the B-series... almost. I'm sure it wouldn't take too much to get it to work on the P500.
>
> What is also interesting about the P500 is that an entire bank of 64K memory can be dedicated to the VIC-II chip.
>
> If you're looking for more P500 info check my CBM-II page... http://ca.geocities.com/sjgray@rogers.com/CBM/index.html
>
> I have some new info on the B-series HP internal drives, and I just managed to aquire a board I mentioned - an adapter board that plugs onto the SFD-1001 motherboard and adds the second drive, basically making it into an 8250LP. Unfortunately the board is not working, but the guy I got it from has a working unit so hopefully it can be fixed.
>
> Steve Gray
>
> PS: My first post to cbm-hackers... although I've been reading for quite a while.
>
>
>
> ----- Original Message ----
>   
>> From: B Degnan <billdeg@degnanco.com>
>> To: cbm-hackers@ling.gu.se
>> Sent: Saturday, July 11, 2009 10:01:16 PM
>> Subject: P500 Conversion from PAL to NTSC
>>
>> I was able to convert my PAL P500 to NTSC using the directions found here:
>> http://landover.no-ip.com/pet/forum/index.php?topic=196.0 and parts from a
>> broken C64.
>>
>> Here is the boot screen:
>> http://vintagecomputer.net/commodore/p500/thm_P500_NTSC_bootscreen.JPG
>>
>> I have also been able to write simple music programs using the SID chip, which
>> appears to use the same memory location as the B Series, not the C64.  One has
>> to program a tempo 2X as fast as one would for the B.
>>
>> This system is quite odd...128K RAM, SID chip, 1mhz, 40 column color display.
>>
>> Bill
>>
>>
>>       Message was sent through the cbm-hackers mailing list
>>     
>
>
>
>        Message was sent through the cbm-hackers mailing list
>
>
>   


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Received on 2009-07-12 15:12:47

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