DOS 3.30 source code leak
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; SCCSID = @(#)BPB.ASM 1.1 85/04/29;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;; C A V E A T P R O G R A M M E R ;; ;
; BIOS PARAMETER BLOCK DEFINITION; THIS STRUCTURE IS USED TO BUILD A FULL DPB
BPBLOCK STRUCBPSECSZ DW ? ; SIZE IN BYTES OF PHYSICAL SECTORBPCLUS DB ? ; SECTORS/ALLOC UNITBPRES DW ? ; NUMBER OF RESERVED SECTORSBPFTCNT DB ? ; NUMBER OF FATSBPDRCNT DW ? ; NUMBER OF DIRECTORY ENTRIESBPSCCNT DW ? ; TOTAL NUMBER OF SECTORSBPMEDIA DB ? ; MEDIA DESCRIPTOR BYTEBPFTSEC DW ? ; NUMBER OF SECTORS TAKEN UP BY ONE FATBPBLOCK ENDS
A_BPB STRUCBPB_BYTESPERSECTOR DW ?BPB_SECTORSPERCLUSTER DB ?BPB_RESERVEDSECTORS DW ?BPB_NUMBEROFFATS DB ?BPB_ROOTENTRIES DW ?BPB_TOTALSECTORS DW ?BPB_MEDIADESCRIPTOR DB ?BPB_SECTORSPERFAT DW ?BPB_SECTORSPERTRACK DW ?BPB_HEADS DW ?BPB_HIDDENSECTORS DW ? DW ?BPB_BIGTOTALSECTORS DW ? DW ? DB 6 DUP(?)A_BPB ENDS; ;; C A V E A T P R O G R A M M E R ;;----+----+----+----+----+----+----+----+----+----+----+----+----+----+----;
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