�� THE DOS2 COURSE GOES ON AND ON AND... ASCII'S WAY TO TORMENT MANKIND
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In other words, it time for DOS2 again. Not too much this time as time is indeed something I do not have... Just a few func- tions a little more specified, we'll reach $70 eventually, some day... Right?!? Ah well, we'll see... By the way, I'm not going to go into all that DOS1 BDOS crap, just the speci- fic DOS2 calls... DOS1 info can be found practically every- where, but if someone really wants that info, a call -as in phonecall, letter - will suffice to solve that problem.
GET DISK PARAMETERS [_DPARM]
IN: C = $31 DE = Pointer to 32byte buffer L = Drive number RES: A = Error code DE = Preserved
Created block: +$00 Physical drive number +$01 Sector size ($01FF) +$03 Sector per cluster +$04 Number of reserved sectors +$06 Number of FATs +$07 Entries in root directory +$09 Number of logical sectors +$0B Media descriptor byte +$0C Sectors per FAT +$0D First root directory sector +$0F First data sector +$11 Maximum cluster number +$13 Dirty disk flag +$14 Volume ID +$18 1F Unused
FIND FIRST ENTRY [_FFIRST]
IN: C = $40 DE = File info block / ASCIIZ string pointer HL = ASCIIZ filename pointer (If DE = FIB) B = Attributes IX = New file info block RES: A = Error code IX = Matching entry
FIND NEXT ENTRY [_FNEXT]
IN: C = $41 IX = Pointer to file info block from _FFIRST RES: A = Error code IX = Matching next entry
FIND NEW ENTRY [_FNEW]
IN: C = $42 DE = File info block / ASCIIZ string pointer HL = ASCIIZ filename pointer (If DE = FIB) B = Attributes IX = New file info block RES: A = Error code IX = New entry
OPEN FILE HANDLE [_OPEN]
IN: C = $43 DE = Drive/path/file ASCIIZ of FIB A = Mode: b0, no write b1, no read b2 inheritable RES: A = Error code B = New file handle
And that's all folks. Sorry, I know, it aint much, but to be hounest even I have got better things to like. Like sleeping, for instance, because it's really terribly late... Till FD#29 I guess, with -hopefully- a little more than this time...
Tobias Keizer