[Coco] values other than 0 or 1 for byte 14 of decb dir entry

Luis Fernández luis46coco at hotmail.com
Sun Mar 25 09:45:21 EDT 2012


Hi
COCO Use first MSB, that's for sure. 
should be, 1 in 14 ,0 in 15
about what others will review 

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Making 
CoCoDskUtilPack V 1.0.10.zip  
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> Date: Sun, 25 Mar 2012 02:29:38 -0400
> From: aawolfe at gmail.com
> To: coco at maltedmedia.com
> Subject: [Coco] values other than 0 or 1 for byte 14 of decb dir entry
> 
> Hi,
> 
> According to my docs, bytes 14 and 15 are the number of bytes used in
> the last sector of the file.
> Since we have sectors of only 256 bytes, I think that means you'd
> either see 0 in 14 and any value in 15, or 1 in 14 with 0 in 15.
> 
> That rule holds true for a vast majority of the disk images I have
> here, however there are some disks with files that seem to be claiming
> to use more than 256 bytes in their last sector.  I'm not sure what
> this means.  Am I misinterpreting the docs?
> 
> I've values of 2, 7 and 8 in byte 14, and a couple instances of a 1 in
> 14 and a non zero value in 15.
> 
> -Aaron
> 
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