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Re: CP/M .com & .arc files to apple II?



In article <453b9ace$0$34506$742ec2ed@news.sonic.net>,
Andy McFadden  <fadden@fadden.com> wrote:

> Paul Schlyter <pausch@saaf.se> wrote:
>>> I don't suppose anyone would be kind enough to explain the process of
>>> making actual CP/M floppies, or copy to CP/M floppies from online
>>> .com and .arc (etc.) files for use on my Apple II+ with Z80 softcard?
>>> Not knowing much about CP/M, I'm a little confused. 
>>  
>> Andy!  When will Ciderpress be able to add new files to Apple II CP/M
>> disk images?
> 
> I don't have a formal timeline for adding features.  It's usually some
> combination of "what do registered users want?", "what do *I* need?", and
> "what do I have time to do?"
> 
> Writing filesystem code that works correctly takes a while, and it doesn't
> help matters that I've only used CP/M a couple of times.

Would you like some help?


> On the plus side, I think it's second only to UCSD Pascal in simplicity.

You already have code which reads CP/M files, right?  Writing isn't that
much more complex really.  And CP/M allocated new blocks in a quite
simpleminded way: whenever a new block was needed, the first free block
from the beginning of the disk was allocated.  I think it's OK to only
write non-sparse new files to a CP/M disk --- even CP/M's own PIP utility
isn't able to transfer a sparse file from one unit to another....

> -- 
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