Files
DR-DOS-OpenDOS/IBMDOS/PSP.DEF
2020-11-04 23:59:28 +01:00

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; File : $PSP.DEF$
;
; Description :
;
; Original Author : DIGITAL RESEARCH
;
; Last Edited By : $CALDERA$
;
;-----------------------------------------------------------------------;
; Copyright Work of Caldera, Inc. All Rights Reserved.
;
; THIS WORK IS A COPYRIGHT WORK AND CONTAINS CONFIDENTIAL,
; PROPRIETARY AND TRADE SECRET INFORMATION OF CALDERA, INC.
; ACCESS TO THIS WORK IS RESTRICTED TO (I) CALDERA, INC. EMPLOYEES
; WHO HAVE A NEED TO KNOW TO PERFORM TASKS WITHIN THE SCOPE OF
; THEIR ASSIGNMENTS AND (II) ENTITIES OTHER THAN CALDERA, INC. WHO
; HAVE ACCEPTED THE CALDERA OPENDOS SOURCE LICENSE OR OTHER CALDERA LICENSE
; AGREEMENTS. EXCEPT UNDER THE EXPRESS TERMS OF THE CALDERA LICENSE
; AGREEMENT NO PART OF THIS WORK MAY BE USED, PRACTICED, PERFORMED,
; COPIED, DISTRIBUTED, REVISED, MODIFIED, TRANSLATED, ABRIDGED,
; CONDENSED, EXPANDED, COLLECTED, COMPILED, LINKED, RECAST,
; TRANSFORMED OR ADAPTED WITHOUT THE PRIOR WRITTEN CONSENT OF
; CALDERA, INC. ANY USE OR EXPLOITATION OF THIS WORK WITHOUT
; AUTHORIZATION COULD SUBJECT THE PERPETRATOR TO CRIMINAL AND
; CIVIL LIABILITY.
;-----------------------------------------------------------------------;
;
; *** Current Edit History ***
; *** End of Current Edit History ***
;
; $Log$
;
; ENDLOG
;
; Program Segment Prefix
; ----------------------
; This structure holds vital information for DOS programs
;
;*******************************************************************************
;*
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 00 | int 20 | memory | *** | jmpf|longjmp off|
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 08 |longjmp seg| int22 Off | int22 Seg | int22 Off |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 10 | int22 Seg | int24 Off | int24 Seg | Parent |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 18 | Default Handle Table |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 20 | XFT (20 entries) |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 28 | XFT contd. | Environ | User SP |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 30 | User SS | xfnmax | xftoff | xftseg |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 38 | res1 | res2 | ric | *** | ********* |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 40 | version | ********* | ********* | ********* |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 48 | ********* | ********* | ********* | ********* |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 50 | int 21 | retf| *** | ********* | ********* |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
;* 58 | ********* | ********* | PSP fcb 1 |
;* +-----+-----+-----+-----+-----+-----+-----+-----+
PSP_INT20 equ es:word ptr .0000h
PSP_MEMORY equ es:word ptr .0002h
;PSP_??? equ es:byte ptr .0004h
PSP_LONGCALL equ es:byte ptr .0005h
PSP_LONGOFF equ es:word ptr .0006h
PSP_LONGSEG equ es:word ptr .0008h
PSP_TERM_IP equ es:word ptr .000Ah
PSP_TERM_CS equ es:word ptr .000Ch
PSP_BREAK_IP equ es:word ptr .000Eh
PSP_BREAK_CS equ es:word ptr .0010h
PSP_ERROR_IP equ es:word ptr .0012h
PSP_ERROR_CS equ es:word ptr .0014h
PSP_PARENT equ es:word ptr .0016h
PSP_XFT equ es:byte ptr .0018h
;
; The Default Handle Table is HERE !!
;
PSP_ENVIRON equ es:word ptr .002ch
PSP_USERSP equ es:word ptr .002eh
PSP_USERSS equ es:word ptr .0030h
PSP_XFNMAX equ es:word ptr .0032h
PSP_XFTPTR equ es:dword ptr .0034h
PSP_XFTOFF equ es:word ptr .0034h
PSP_XFTSEG equ es:word ptr .0036h
PSP_RES1 equ es:word ptr .0038h ; DOS Reserved 0FFFFh
PSP_RES2 equ es:word ptr .003Ah ; DOS Reserved 0FFFFh
PSP_RIC equ es:byte ptr .003Ch ; Return Interim Character flag
PSP_VERSION equ es:word ptr .0040h ; DOS version number
PSP_DOSCALL equ es:word ptr .0050h
PSP_DOSRETF equ es:byte ptr .0052h
PSP_FCB1 equ es:byte ptr .005Ch
PSP_FCB2 equ es:byte ptr .006Ch
PSP_COMLEN equ es:byte ptr .0080h
PSP_COMLINE equ es:byte ptr .0081h
XFNMAX equ 20
PSPLEN equ 100h
PSPILEN equ 60h