silverdr_at_inet.com.pl
Date: 2005-11-22 18:40:13
On 2005-11-22, at 12:56, Marko Mäkelä wrote:
> On Tue, Nov 22, 2005 at 10:46:43AM +0100, Antitrack@networld.at wrote:
>>
>> Zitat von silverdr@inet.com.pl:
>>
>>> - Optimised the new GCR conversion routines (about 3s gain). With
>>> this
>>> version I managed to make a 35 tracks d64image in 22.6s, which I
>>> believe to be a new record on the 64! Correct me if I am wrong.
>>
>> Never heard of "15 seconds copy"? It needs 8 secs to read a disk
>> and 8 secs
>> to write it, without verify. What's so great about 22 secs?
>
> I guess "without verify" also means that the GCR data will not be
> decoded
> (or checked for validity).
15 seconds copy's "verify option" does not affect GCR processing at
all. It merely turns on and off re-reading of the tracks written in
first pass and trivial checksum comparison. In any case GCR is not
processed.
> You cannot make a sector dump ("d64image")
> without decoding the GCR data and interpreting the sector headers.
OK. Marko already mostly answered the question about what's so great ;-)
The fastest d64 creation tool I've heard of supposedly does it in
about 20 seconds with the pc assistance and its thousands of times
more powerful CPU. The fastest pc-less tool I've seen claims to do it
in 25 to 30 seconds but I never managed to get a single reliable copy
out of it.
Oh, and BTW. I did hear of "15 seconds copy"... a lot of my tool's
code is based on its concepts! ;-)
--
If you are using a new Macintosh running OS X then you probably have
[...] "daemons" (programs that hide in the background, doing things
without the user's notice) on your computer [...]! This clearly
illustrates that not only is Macintosh based on Darwinism, but
Darwinism is based on Satanism. - Dr. Richard Paley
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