ACNews #35 06 ноября 2004

Программирование

roof in a way - What if, prior to writing full-fledged commander under FAT32 to support the screw as the TR-DOS disk with giperperehodami?

------------------------[ Roof in a way ]--------------------- -

                  Comes to mind is the same ...

What if, prior to writing full-fledged commander under FAT32 to 
support the screw as the TR-DOS disk with giperperehodami? 

Catalog = file screen, must dos while reading this file to 
change the contents of the logical directory and put under zero 
(or a certain image). The balance of the directory of over 128 
files (if he does need one) = subdirectory with virtually 
create subdirectories ".." (In the usual way and it is) - to 
leave out. Subdirectory. " is not needed. 

The names of deleted files deleted on the project as a ZX or 
miss. When you update the catalog on hand ZX - update directory 
on the FAT32. When you delete - delete, if you create a file - 
to create. More precisely, after an operation to track all 
changes in a logical directory and translate them into changes 
fizicheskogo.Pri copy a file with the same name on the same 
disc - create files with similar name, is not the same. For 
example, using the LFN (which though not documented). And can 
spoil a second name insolently (On disk, not in memory). But 
then when you remove tainted name DOS file can not find out 
what the file is deleted. 

Long files of 65,280 bytes to 8M = subdirectory (if max.len. =
= 127 * 255 / 4 = 8096k). Residue can be in a subdirectory of 
the directory and etc.


trd, scl = too subdirectories with the addition of the screen 
".." to exit ago. In some trd can not add, so what:) 
Hobechennye files = normal trdosnye files. 

Address of the file on a logical trdosnom image can be formed,
For example, because: 1-file = track 255, sector 0, 2 nd = 
track 254, sector 0, etc.) Disclaimer: The file is read only in 
its entirety or pieces, but a row. You can not tag when copying 
files back to in advance - you can catch the wrong file. Move 
do not. 

You can file up to 1M regarded as trdos file with the 
satellites, then under some conditions on the program (assume 
the satellites files and read them all) can be maintained, for 
example, files on FAT32. Or agree that the 100-th sector of the 
N-th track - it is 100-st Sector file corresponding to this 
dorozhke.Pri interrupt read This file is in the variables 
should remain just such a curve number of sectors, and 
restrictions on the interrupt copy and order tagging (see 
preceding paragraph) will not. 

Information about the actual directory, its image will redirect 
files, and other buffers - must be at the top (upper) page (s) 
of memory immediately after ramdiska.