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60 lines
2.5 KiB
Plaintext
60 lines
2.5 KiB
Plaintext
; File : $DRIVER.EQU$
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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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; Device driver header offsets.
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DH_NEXT equ es:dword ptr 0 ; Dword Pointer to Next DEV
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DH_NEXTOFF equ es:word ptr 0 ; Offset of next device
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DH_NEXTSEG equ es:word ptr 2 ; Segment of next device
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DH_ATTRIB equ es:word ptr 4 ; device attribute bits
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DH_STRATEGY equ es:word ptr 6 ; offset of strategy entry
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DH_INTERRUPT equ es:word ptr 8 ; offset of interupt entry
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DH_NAME equ es:byte ptr 10 ; 8-BYTE device name
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DA_CHARDEV equ 8000h ; 1=character device, 0=block device
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DA_IOCTL equ 4000h ; device supports IOCTL string I/O
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DA_NONIBM equ 2000h ; dosen't require FAT for login
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DA_OTILBSY equ 2000h ; supports "output until busy"
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DA_REMOVE equ 0800h ; supports "removable media" check
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DA_QUERY equ 0080h ; supports query ioctl
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DA_GETSET equ 0040h ; supports 3.2 level functionality
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DA_SPECIAL equ 0010h ; fast console ouput via INT 29h
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DA_ISCLK equ 0008h ; device is current clock device
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DA_ISNUL equ 0004h ; device is NUL device (reserved)
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DA_BIGDRV equ 0002h ; supports > 65535 sector per drive
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DA_ISCOT equ 0002h ; device is standard output device
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DA_ISCIN equ 0001h ; device is standard input device
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FASTCON_INT equ 29h ; fast console output interrupt
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