This is sort of an unusual question. For you to understand, you'll need to look at the picture below. The gray background is irrelevant.
You can notice there are $4$ discs, splitted to numbered logical sectors. What I wish to find is the physical address of a sector (the position within the disc itself).
For example,
- The sector numbered $13$ is actually located at the physical address number $05$.
- The sector numbered $06$ is actually located at the physical address number $02$.
Terminology:
- A Block is a row of sectors ($4$ in our case)
- A strip is a row of blocks (also $4$ in our case)
Basically, we can reduce our problem only for the first $4$ rows since the same can be applied for the others.
I'd be glad to get help with figuring out a formula (or a pseudo-code) which converts logical to physical addresses.
UPDATE
Barry kindly helped me with converting a logical to physical address (it actually very inventive when I think about it).
I also need to to return the device number ($0-3$).
How do I do that?