Compose your message:
Email Address :
Password:
OR
Your Name :
REAL Email Address :
(PRIVATE)
Subject :
Please type in your message (no HTML codes) :
[quote]On 06/28/2012 @ 08:31, Pete Rittwage wrote : It will have an expected track size based on the density detected. : : /* To calculate the bytes per rotation: : : 4,000,000 * 60 : b/minute = ------------------------------------------------ = x bytes/minute : speed_zone_divisor * 8bits : : 4,000,000 is the base clock frequency divided by 4. : 8 is the number of bits per byte. : 60 gets us to a minute of data, which we can then divide by RPM to get our numbers. : : speed zone divisors are 13, 14, 15, 16 for densities 3, 2, 1, 0 respectively : */ : : #define DENSITY3 2307692.308 // bytes per minute : #define DENSITY2 2142857.143 : #define DENSITY1 2000000.000 : #define DENSITY0 1875000.000 : : Further divide this by the RPM (300) to get the number of bytes on a track that "should" be there. : : Now, if the disks were not written with a 1541, this will be inaccurate. It's already known that a trace duplicator will be a slightly different bitcell size that a 1541, but it's close. : : Also, we cannot always tell where a custom tracks starts and ends when written on a 1541, though. Well, at least I can't- maybe there are other methods to do so I haven't explored. : -- [/quote]
File to attach:
(limit 250000 bytes)
SECURITY QUESTION
I had 9 pecans and then I stole 2 more.
How many do I have now?
: