Re: PET/CBM Tape Archiving

From: Marko Mäkelä <>
Date: Sat, 6 Oct 2012 10:13:57 +0300
Message-ID: <20121006071357.GA4131@x220>
On Sat, Oct 06, 2012 at 01:31:52AM +0200, Rhialto wrote:
>On Fri 05 Oct 2012 at 23:00:09 +0300, Marko Mäkelä wrote:
>> Note that the *.prg format can lose some data. On the cassette, you
>> have a 192-byte tape header followed by the actual program payload.
>> Usually the 192-byte header contains a 16-byte file name and
>> start/end addresses only.
>but there is at least one game (space intruders) that stores more than 
>16 characters in there, and it checks if the extra stuff is there.  (I 
>do have a version of it now, although looking at the working directory, 
>I had to reconstruct it somehow)

Also, my c2nload for the C2N232 loads the actual code in the 192-byte 
block, and the 2-byte "program" just overwrites the PRINT vector to 
auto-start the c2nload fastloader. :-)

The PET tape timings are similar but not identical to those of the 
Vic-20 and C64. The format is the same. The 264 series changes the tape 
format a bit (and, iirc, prints 17 instead of 16 bytes of file name).


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Received on 2012-10-06 08:00:05

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