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MPM OPERATING SYSTEMS/MPM-86/MPM-86 2.0 SOURCES/02/PD.DEF

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+;*****************************************************
+;*
+;*	Process Descriptor - with the UDA associated
+;*		with the PD, describes the current
+;*		state of a Process under MP/M-86
+;*
+;*   +-----+-----+-----+-----+-----+-----+-----+-----+
+;* 00|   link    |  thread   |stat |prior|   flag    |
+;*   +-----+-----+-----+-----+-----+-----+-----+-----+
+;* 08|                     Name                      |
+;*   +-----+-----+-----+-----+-----+-----+-----+-----+
+;* 10|    uda    | dsk | user| ldsk|luser|    mem    |
+;*   +-----+-----+-----+-----+-----+-----+-----+-----+
+;* 18|  dvract   |   wait    | org | net |  parent   |
+;*   +-----+-----+-----+-----+-----+-----+-----+-----+
+;* 20| cns |abort| cin |cout | lst | sf3 | sf4 | sf5 |
+;*   +-----+-----+-----+-----+-----+-----+-----+-----+
+;* 28|        reserved       |   pret    |  scratch  |
+;*   +-----+-----+-----+-----+-----+-----+-----+-----+
+;*
+;*	link	- Used for placement into System Lists
+;*	thread	- link field for Thread List
+;*	stat	- Current Process activity
+;*	prior	- priority
+;*	flag	- process state flags
+;*	name	- name of process
+;*	uda	- Segment Adress of User Data Area
+;*	dsk	- Current default disk
+;*	user	- Current default user number
+;*	ldsk	- Disk program loaded from
+;*	luser	- User number loaded from
+;*	mem	- pointer to MD list of memory owned
+;*		  by this process
+;*	dvract	- bit map of currently active drives
+;*	wait	- parameter field while on System Lists
+;*	org 	- Network node that originated this process
+;*	net	- Network node running this process
+;*	parent  - process that created this process
+;*	cns	- controlling console
+;*	abort	- abort code
+;*	cin	- standard file #0 (console input)
+;*	cout	- standard file #1 (console output)
+;*	lst	- standard file #2 (list output)
+;*	sf3	- standard file #3
+;*	sf4	- standard file #4
+;*	sf5	- standard file #5
+;*	reserved- not currently used
+;*	pret	- return code at termination
+;*	scratch - scratch word
+;*
+;*****************************************************
+
+p_link		equ	word ptr 0
+p_thread	equ	word ptr p_link + word
+p_stat		equ	byte ptr p_thread + word
+p_prior		equ	byte ptr p_stat + byte
+p_flag		equ	word ptr p_prior + byte
+p_name		equ	byte ptr p_flag + word    
+p_uda		equ	word ptr p_name + pnamsiz
+p_dsk		equ	byte ptr p_uda + word
+p_user		equ	byte ptr p_dsk + byte
+p_ldsk		equ	byte ptr p_user + byte
+p_luser		equ	byte ptr p_ldsk + byte
+p_mem		equ	word ptr p_luser + byte
+p_dvract	equ	word ptr p_mem + word
+p_wait		equ	word ptr p_dvract + word
+p_org		equ	byte ptr p_wait + word
+p_net		equ	byte ptr p_org + byte
+p_parent	equ	word ptr p_net + byte
+p_cns		equ	byte ptr p_parent + word
+p_abort		equ	byte ptr p_cns + byte
+p_cin		equ	byte ptr p_abort + byte
+p_cout		equ	byte ptr p_cin + byte
+p_lst		equ	byte ptr p_cout + byte
+p_sf3		equ	byte ptr p_lst + byte
+p_sf4		equ	byte ptr p_sf3 + byte
+p_sf5		equ	byte ptr p_sf4 + byte
+p_reserved	equ	word ptr p_sf5 + byte
+p_pret		equ	word ptr p_reserved + (2*word)
+p_scratch	equ	byte ptr p_pret + word
+p_wscrtch	equ	word ptr p_scratch
+
+;
+;	Process descriptor pd_status values
+;
+
+ps_run		equ	00	; in ready list root
+ps_poll		equ	01	; in poll list
+ps_delay	equ	02	; in delay list
+ps_swap		equ	03	; in swap list
+ps_term		equ	04	; terminating
+ps_sleep	equ	05	; sleep processing
+ps_dq		equ	06	; in dq list
+ps_nq		equ	07	; in nq list
+ps_flagwait	equ	08	; in flag table
+ps_ciowait	equ	09	; in c_queue list
+;
+;	Process descriptor pd_flag bit values
+;
+pf_sys		equ	00001h	; system process
+pf_keep		equ	00002h	; do not terminate
+pf_kernal	equ	00004h	; resident in kernal
+pf_pure		equ	00008h	; pure memory descibed
+pf_table	equ	00010h	; from pd table
+pf_resource	equ	00020h	; waiting for resource
+pf_raw		equ	00040h	; raw console i/o
+pf_ctlc		equ	00080h	; abort pending
+pf_active	equ	00100h	; active tty
+pf_tempkeep	equ	00200h	; don't terminate yet...
+pf_ctld		equ	00400h	; explicit detach occured
+pf_childabort	equ	00800h	; child terminated abnormally
+