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65 lines
2.4 KiB
Plaintext
65 lines
2.4 KiB
Plaintext
; File : $UDSC.EQU$
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;
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; Description :
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;
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; Original Author : DIGITAL RESEARCH
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;
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; Last Edited By : $CALDERA$
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;
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;-----------------------------------------------------------------------;
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; Copyright Work of Caldera, Inc. All Rights Reserved.
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;
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; THIS WORK IS A COPYRIGHT WORK AND CONTAINS CONFIDENTIAL,
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; PROPRIETARY AND TRADE SECRET INFORMATION OF CALDERA, INC.
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; ACCESS TO THIS WORK IS RESTRICTED TO (I) CALDERA, INC. EMPLOYEES
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; WHO HAVE A NEED TO KNOW TO PERFORM TASKS WITHIN THE SCOPE OF
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; THEIR ASSIGNMENTS AND (II) ENTITIES OTHER THAN CALDERA, INC. WHO
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; HAVE ACCEPTED THE CALDERA OPENDOS SOURCE LICENSE OR OTHER CALDERA LICENSE
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; AGREEMENTS. EXCEPT UNDER THE EXPRESS TERMS OF THE CALDERA LICENSE
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; AGREEMENT NO PART OF THIS WORK MAY BE USED, PRACTICED, PERFORMED,
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; COPIED, DISTRIBUTED, REVISED, MODIFIED, TRANSLATED, ABRIDGED,
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; CONDENSED, EXPANDED, COLLECTED, COMPILED, LINKED, RECAST,
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; TRANSFORMED OR ADAPTED WITHOUT THE PRIOR WRITTEN CONSENT OF
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; CALDERA, INC. ANY USE OR EXPLOITATION OF THIS WORK WITHOUT
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; AUTHORIZATION COULD SUBJECT THE PERPETRATOR TO CRIMINAL AND
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; CIVIL LIABILITY.
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;-----------------------------------------------------------------------;
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;
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; *** Current Edit History ***
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; *** End of Current Edit History ***
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;
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; $Log$
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; ENDLOG
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UDSC_BPB_LENGTH equ 25
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UDSC struc
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UDSC_NEXT dd ? ; link to next UDSC_
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UDSC_RUNIT db ? ; ROS drive number (0/1/80/81)
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UDSC_DRIVE db ? ; logical drive
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UDSC_BPB db UDSC_BPB_LENGTH dup (?) ; current BPB
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UDSC_FATFLAG db ?
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UDSC_OPNCNT dw ? ; # of files open on drive
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UDSC_TYPE db ? ; floppy drive type (0/1/2/7)
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UDSC_FLAGS dw ? ; various flags for drive
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UDSC_NCYL dw ? ; # of cylinders per drive
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UDSC_DEVBPB db UDSC_BPB_LENGTH dup (?) ; device BPB
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db 7 dup (?)
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UDSC_TIMER dw 2 dup (?) ; tick count for MEDCHK
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UDSC_LABEL db 12 dup (?) ; ASCIIZ volume label
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UDSC_SERIAL dd ? ; serial number
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UDSC_FSTYPE db 9 dup (?) ; ASCIIZ "FAT12"/"FAT16" type
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UDSC ends
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UDSC_LENGTH equ size UDSC
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UDF_HARD equ 0001h ; drive is a hard disk
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UDF_CHGLINE equ 0002h ; drive support disk change line
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UDF_UNSURE equ 0004h ; drive has just been formatted
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UDF_VFLOPPY equ 0010h ; drive shares physical drive
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UDF_OWNER equ 0020h ; logical drive "owns" physical drive
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UDF_MEDIA equ 0100h ; media id is from bootsec, not default
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MAXPART equ 26 ; support up 26 drives
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