Hi Eric, > That is not a compile time thing. Most of those variables are in > kernel.asm and the List of Lists, where they either have hardcoded > initial values (f_nodes_cnt is 0) or are initialized by zeroing > out memory areas or by calculating values during kernel init. >
yes, I read carefully the kernel.asm file and noticed that the DATASTART area declares many variables pointed by LoL, and initialized. > You cannot use filenames / pathnames longer than 67 (but the > LFN mapped to them with drivers like DOSLFN can be longer). > > You cannot use UNICODE filenames either (the filename charset > depends on your codepage / dos font, and it is recommended to > use plain ASCII). Again, DOSLFN can help, it supports some > subsets of UNICODE for the long file names. > In principle, I would like FFS to be able to handle pathnames longer than 67 and possibly read Unicode filenames. I might add a thin layer that translates Unicode UCS2 filenames into UTF8 ones. In this way, I can still use the ordinary strlen(), strcpy() functions. The port, though, is not yet mature for me to understand where, in the code, those limitations are located. > To mount partitions, they are added to some array or > linked list of drive properties. Also used for ramdisks > and networked/nonfat drives. Read the initdisk.c code > starting at dsk_init() / ReadAllPartitionTables() and > the things which call it, such as init_kernel() and > FreeDOSmain(). Then you will also know what FreeDOS > does between "boot sector" and "read config sys". > I'm working on initdisk.c :-) > The latter is done in config.c and is probably > interesting for you to read IF you plan to use BUFFERS. > Maybe you do, as it makes porting easier. I'm gonna use buffers :-) Do you think I'll be to produce a port that doesn't depend on "struct dhdr"? In other words, how deep are the dependancies between "struct dhdr" and the code used by the filesystem? > Make sure > you do not implement too much of init_kernel(), or you > may end up adding the whole FreeDOS kernel to FFS ;-). :-) > > Eric > Enrico ------------------------------------------------------ Leggi GRATIS le tue mail con il telefonino i-modeĀ di Wind http://i-mode.wind.it/ ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Freedos-devel mailing list Freedos-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freedos-devel
