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Trailing-Edge - PDP-10 Archives - msv11ck - 10,7/mail/mx/mxnt10.mac
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;DSKT:NMUT10.MAC[10,6026,NMLUPD] 31-Jan-85 15:44:21, Edit by DAVENPORT
;
; Run NML702.EXE if started under load 70260 or earlier.
;
; DSKC:NMUT10.MAC[10,5665,SOURCE,TOPS10] 20-Oct-83 23:09:20, Edit by GROSSMAN
;
; Put literals in the hiseg.
; Edit=43
;
;NET:<GROSSMAN.NML-SOURCES>NMUT10.MAC.2  9-Feb-82 16:32:45, Edit by GROSSMAN
;
; Turn off interrupts during message processing in order to prevent typeout
; races.
;
; NMUT10 - TOPS10 specific utility functions
;	   LSG DECnet Network Management

;
;			  COPYRIGHT (c) 1980
;                    DIGITAL EQUIPMENT CORPORATION
;
;     This software is furnished under a license and may  be  used
;     and copied only in accordance with the terms of such license
;     and with the inclusion of the above copyright notice.   This
;     software  or any other copies thereof may not be provided or
;     otherwise made available to any other person.  No  title  to
;     and ownership of the software is hereby transferred.
;
;     The information  in  this  software  is  subject  to  change
;     without  notice  and should not be construed as a commitment
;     by DIGITAL EQUIPMENT CORPORATION.
;
;     DIGITAL assumes no responsibility for the use or reliability
;     of  its  software  on  equipment  which  is  not supplied by
;     DIGITAL.
;
	TITLE	NMUT10 - TOPS10 specific utility functions
	SUBTTL	Introduction

Comment	&

	This set of routines implements the TOPS10 versions
	of utility functions required.  There are two cases
	for these functions:

	   (A)	TOPS10 only functions.  These are  functions
		that are required  for TOPS10  only, and  no
		other operating system uses them.

	   (B)	Generic system  specific  functions.   These
		functions  are  required  of  all  operating
		system interfaces, have  a standard  calling
		convention, but have different code sets  to
		implement them.

	&
	SUBTTL	Definitions

;External references

	EXTERN MXLOGF			; File-id of the log file
	EXTERN MXLOGM			; A dummy address
	EXTERN UF%CLO			; MX$FILE_CLOSE routine

	SALL				; Suppress macro expansions
					; for a clean listing

	SEARCH	JOBDAT			; Job data area
	SEARCH	UUOSYM			; Monitor symbol definitions
	SEARCH	MACTEN			; Useful macros

; Register definitions

	T0==0				; Temporaries (scratchable)
	T1==1
	T2==2
	T3==3
	T4==4
	P1==5				; Something a little more permanent
	P==17				; Stack pointer


	TWOSEG	400000			; Put this into the high seg

define OFF%INTERRUPT
<	MOVX	T1,PS.FOF
	PISYS.	T1,
	 HALT	 .
	AOS	INTNST##>

define ON%INTERRUPT(%LAB)
<	SOSLE	INTNST##
	 JRST	 %LAB
	MOVX	T1,PS.FON
	PISYS.	T1,
	 HALT	 .
%LAB:			>

	SUBTTL	NMLCHK

; Routine - NMLCHK
;
; Function - This routine checks the monitor load number, and
;	     runs SYS:NMLXXX.EXE if running 702
;	     or earlier.
;
; Arguments - none.
;
; Value - none.

	ENTRY	NMLCHK

NMLCHK:	MOVE	T1,[%CNDAE]	;Use same GETTAB that DAEMON does
	GETTAB	T1,		;To determine version
	  HALT	.		;and quit if earlier than 702
	HLRZ	T2,T1		;Save SIXBIT version number
	HRRZS	T1		;isolate version
	CAIL	T1,703		;If monitor is new
	  POPJ	P,		;We're just fine
	HRLI	T2,'NML'	;Else, create the program name to run
	MOVSI	T1,'SYS'	;from SYS
	SETZB	T3,T4		;Don't need extension or PPN
	DMOVEM	T3,T4+1		;Or any other trash
	MOVEI	0,T1
	RUN	0,
	  HALT	.
	HALT	.
	SUBTTL	DETACH

; Routine - DETACH
;
; Function - This routine will detach the job if it is started on the Force
;	      line.
;
; Arguments - none.
;
; Value - none.
;

	ENTRY	DETACH

DETACH:	SETZM	.JBSA		; NML is not (may NEVER be!) restartable
	PUSH	P,T1		; Save an AC
	PUSH	P,T2		; Save another AC
	MOVEI	T1,RENTER	; Get the REENTER address for crashes
	MOVEM	T1,.JBREN	; Install it
	MOVE	T1,[%CNFLN]	; Get the number of the FRCLIN
	GETTAB	T1,		; Get it
	 JRST	 GOVIRT		; Return, restoring T1
	SETO	T2,		; Prepare to
	TRMNO.	T2,		; get the number of this tty
	 JRST	 GOVIRT		;  Probably detached already
	SUBI	T2,.UXTRM	; Turn the udx into a tty number
	CAME	T1,T2		; Are we on the FRCLIN???
	 JRST	 GOVIRT		;  No, don't detach us
	HRLZI	T1,-1		; Get a -1 as the tty number
	ATTACH	T1,		; Detach us
	 JFCL			;  Sigh...

; Here when we want to go virtual

GOVIRT:	MOVE	T2,[.STTVM,,^D500] ; Set virtual timer trap interval
	SETUUO	T2,		; Set it
	 JFCL			;  ???
	SUBTTL	See if monitor has DECnet.  Complain and log out if not

;	MOVE	T1,[%CNST2]	; Get the DECnet feature test bit
;	GETTAB	T1,		; Load the AC
;	 SETZ	 T1,		;  ?!?
;	TLNE	T1,(ST%D36)	; Does the monitor have DECnet???
;	 JRST	 T2POPJ		;  Yes, all's fine
;	PUSH	P,[[ASCIZ |?
;?NML - Monitor does not have DECnet.|]]
;	PUSHJ	P,OTSTR		; Print out the string
;	PUSHJ	P,CHKDET	; Are we detached?
;	 JRST	 ATTXIT		;  No, just exit
;	PUSH	P,[[ASCIZ |  NML is logging out.
;|]]
;	PUSHJ	P,OTSTR		; Print out the string
;	PUSHJ	P,OUTFIN	; Flush the buffer
;	MOVE	T1,LGOARG	; And log us out
;	RUN	T1,UU.PHY	; By running LOGOUT
;	 EXIT	 1,		;  !?!
;	JRST	.-1		; Not really continuable

;ATTXIT:	PUSH	P,[[ASCIZ |
;|]]
;	PUSHJ	P,OTSTR		; Print a <CRLF> on OPR
;	PUSHJ	P,OUTFIN	; Flush the buffer
;	EXIT	1,		; And exit peacefully
;	JRST	.-1		; Not really continuable

T2POPJ:	POP	P,T2		; Restore T2
TPOPJ:	POP	P,T1		;    "    T1
.POPJ:	POPJ	P,

CHKDET:	SETO	T1,		; Set up for TRMNO. of my tty
	TRMNO.	T1,		; Are we detached?
	 AOS	 (P)		;  Yes, give a skip
	POPJ	P,		; No, just return

CHKATT:	SETO	T1,		; Set up for TRMNO. of my TTY
	TRMNO.	T1,		; Are we detached?
	 POPJ	 P,		;  Yes, no skip
	AOS	(P)		; We are attached, give a skip
	POPJ	P,

LGOARG:	EXP	.+1		; AC for RUN uuo
	SIXBIT	|SYS|
	SIXBIT	|LOGOUT|
	SIXBIT	|EXE|
	EXP	0
	EXP	0
	EXP	0
	SUBTTL	NMLDIE	Stopcode processing for NML

; NMLDIE is where all stopcode processing ends up in NML.  It will save
; all AC's, .JBOPC, and then save itself for crash analysis.  The file names
; are all unique, and have the form NMLnnn, where nnn is the first number
; that makes NMLnnn a unique filename.  A call to NMLDIE never returns.
;
; NML will only save itself if the logical name DUMP: is defined.  The name
; should just contain the device and path of where to dump.  Ie: a command
; of the form  ".PATH DUMP:=DSKB:[12,3456,SFD1,SFDn]"  will make NML save
; itself in the specified area under the names described above.  In addition
; to this, if the logical name RUN: is defined, NML will run the program
; specified by RUN: if it can be found.  A command of the form
; ".PATH RUN:/OVERRIDE=SYS:NML.EXE"  will define RUN: correctly.  Note that
; the filename must be specified, and that PT.OVR (/OVERRIDE) must also be
; on.
;
;
; Call:	PUSHJ	P,NMLDIE	; No arguments
;	<Never returns>
;

; Here on a REENTER command
RENTER:	PUSHJ	P,NMLDIE	; So we can tell where we came from

; Here on any trap type errors
NMLTRP::

NMLDIE::		; Here from main program, when fatal error detected
	SKIPN	.JBREN		; Have we been here before?
	 HALT	 .		;  Recursion in error handler
	SETZM	.JBREN		; Can only do this once
	EXCH	0,CRSACS	; Save 0, get BLT AC
	BLT	0,CRSACS+17	; Save all the AC's
	MOVE	T1,.JBOPC	; Get the old PC
	MOVEM	T1,CRSPC	; Save that too

	PUSH P,MXLOGF		;File-id of the log file
	PUSH P,[0]		;Keep the file
	MOVEI T1,MXLOGM		;Address for an error code
	PUSH P,T1
	PUSHJ P,UF%CLO		;Close the logfile...
	ADJSP -3
	SETZ T1

	HRRZ	T1,.JBDDT	; Get start addr of DDT
	JUMPN	T1,(T1)		; Jump if it exists

	SETZ	P1,		; Indicate we should run new copy
SAVLOP:	MOVE	T1,SAVFLP	; Get ac for FILOP.
	FILOP.	T1,		; Does the file exist?
	 JRST	 CHKERR		;  No, go check for errors

	MOVE	T1,LKEBLK+.RBNAM; Get name
	AOJ	T1,		; Increment the name
	TRZE	T1, 000010	; Did field overflow?
	 ADDI	 T1,000100	;  Yes, increment next digit
	TRZE	T1, 001000	; Did that field overflow??
	 ADDI	 T1,010000	;  Yes, increment that field
	TRNE	T1, 100000	; Did the third digit overflow???
	 JRST	 EXTERR		;  Yes, there sure are a lot of dumps out there
	MOVEM	T1,LKEBLK+.RBNAM; Put new name back
	JRST	SAVLOP		; And try again

CHKERR:	CAIE	T1,ERFNF%	; File Not Found?
	 JRST	 FLPERR		;  Dunno, we got a strange error
	MOVE	T1,LKEBLK+.RBNAM ; Get name
	MOVEM	T1,SAVARG+1	; Put it in SAVE. uuo arg block
	MOVEI	T1,SAVARG	; Get AC for SAVE. uuo
	SAVE.	T1,		; Save ourselves
	 HALT	 .		;  Stop now, don't make it worse
	  MOVEI	  T2,SAVMSG	;   Tell user we saved gracefully
SAVTYP:	MOVE	P,TMPSTK	; Get the stack back
	PUSH	P,T2		; Put addr of text on stack
	PUSHJ	P,OTSTR		; Type it out
	PUSHJ	P,OUTFIN	; Flush the buffer

	SKIPN	P1		; Should we run a new copy??
	 JRST	 RUNNEW		;  Yes, go to it
	EXIT	1,		; No, die gracefully
	JRST	.-1		; Hardly restartable at this point

RUNNEW:	SETO	P1,		; Indicate we should give up in case of error
	SETZB	T1,T3		; Clear I/O status and buffer pointers
	MOVE	T2,RUNARG+0	; Get device name into OPEN block
	OPEN	T1		; Open the device
	 JRST	 RUNERR
	SETZ	T2,		; Clear name
	LOOKUP	T1		; Lookup the program
	 JRST	 RUNERR

	MOVEI	T1,RUNARG	; Set up AC for RUN uuo
	RUN	T1,		; Try runnung the program
	 HALT	 .		;  We'll probably never get here, but...
	HALT	.		; We should NEVER get here!

RUNARG:	SIXBIT	/RUNMX/
	SIXBIT	/FOO/
	EXP	0
	EXP	0
	EXP	0
	EXP	0
	EXP	0

SAVERR:	ASCIZ	|?
?MX - SAVE. uuo failed.
|
SAVMSG:	ASCIZ	|
MX saved on DUMP:MXDnnn.EXE

.R MX
|
BADERR:	ASCIZ	|?
?MX - Bad FILOP. error while trying to dump program
|

EXTDIE:	ASCIZ	|?
?MX -  Can't save MX, too many crashes saved!
|
DIEMSG:	ASCIZ	|?
?MX - MX stopping program
|

FLPERR:	SETO	P1,			; Prevent running of new copy
	CAIN	T1,ERNSD%		; No such device???
RUNERR:	 SKIPA	 T2,[DIEMSG]		;  Get death message
	  MOVEI	  T2,BADERR		;   Get addr of message
	JRST	SAVTYP

EXTERR:	SETO	P1,			; Prevent running of new copy
	MOVEI	T2,EXTDIE		; Get addr of message
	JRST	SAVTYP
	SUBTTL	SS%SWITCH

; Routine - SS%SWITCH
;
; Function - This routine is called with the address of two task
;	     blocks.  One is the "current" task, the other is for
;	     the "future" task.  When this routine completes a
;	     context switch between the two tasks will have been
;	     done.
;
; Parameters -
;
;	-1(P)	  Future task block address
;	CURTSK/	  Address of current task's task block

	ENTRY	SS%SWITCH
	INTERN	CURTSK, PRVTSK

	RELOC				; Put this in low seg
CURTSK:	BLOCK	1			; Current task block address
PRVTSK:	BLOCK	1			; Previous task block address

	RELOC				; Back in the high seg
SS%SWITCH:
	EXCH	T1,CURTSK		; Save register and get task blk addr
	MOVEM	T1,PRVTSK		; Save as the previous task
	JUMPE	T1,SSS.1		; If no task ... just run new one
	MOVEM	T0,TB.CTX##+T0(T1)	; Save register 0 in context block
	MOVE	T0,CURTSK		; Get contents of register 1
	MOVEM	T0,TB.CTX##+T1(T1)	; Save register 1 in context block
	MOVEI	T0,TB.CTX##+P(T1)	; Calculate end of context block
	ADD	T1,[T2,,TB.CTX##+T2]	; Start of registers to BLT
	BLT	T1,@T0			; Copy into context block

SSS.1:	HRLZ	T0,-1(P)		; Get new task block address
	HLRZM	T0,CURTSK		; Save current task block address
	ADD	T0,[TB.CTX##+T1,,T1]	; Offset to saved registers
	BLT	T0,P			; Copy back registers
	MOVE	T0,CURTSK		; Get current task block address
	ADDI	T0,TB.CTX##+T0		; Offset to register 0
	MOVE	T0,@T0			; Get register 0
	POPJ	P,			; Return to new task

	SUBTTL	SS%TINIT

; Routine - SS%TINIT
;
; Function - This routine sets up a task block for running it
;	the first time.  It does not start the task, only
;	initializes the task block stack.
;
; Parameters -
;
;	-1(P)	Size of task's stack
;	-2(P)	Task block to initialize

	ENTRY	SS%TINIT

SS%TINIT:
	MOVE	T1,-2(P)		; Get address of task block
	MOVEI	T2,TB.STK##(T1)		; Copy it for a stack pointer
	MOVN	T3,-1(P)		; Get length of stack
	HRL	T2,T3			; Make initial stack pointer
	PUSH	T2,[US%FINI##]		; Put task exit routine onto stack
	HRRZ	T3,TB.STR##(T1)		; Get starting address
	PUSH	T2,T3			; Put starting address onto stack
	MOVEM	T2,TB.CTX##+P(T1)	; Set initial stack pointer for task
	POPJ	P,			; Return
	SUBTTL	SS%MESSAGE

; Routine - SS%MESSAGE
;
; Function - This routine outputs a message to the operator
;	or console.
;
; Parameters -
;
;	-1(P)	Byte pointer to error message string

	ENTRY	SS%MESSAGE
        ENTRY   SS%CMESSAGE
	ENTRY	SS%CLMESSAGE

; Here to simulate an outstr
OTSTR:	MOVEI	T1,440700		; Get magic num
	HRLM	T1,-1(P)		; Install it in the pointer

SS%CLMESSAGE:
	PUSHJ	P,NOINT			; Turn off interrupts for entire string
SS%CL2:	ILDB	T1,-1(P)		; Get byte
	JUMPE	T1,YESINT		; Return if no more
	PUSHJ	P,OUTC			; Output the character
	JRST	SS%CL2			; And keep going



SS%CMESSAGE:
	PUSHJ	P,NOINT			; Turn off interrupts for a sec
	PUSH	P,[[BYTE (7)15,12]]	; Start message on a new line
	PUSHJ	P,OTSTR			; Simulate an outstr
	ADJSP	P,-1			; Fix the stack
	SETZ	T4,			; Output all the alignment spaces
	PJRST	SS%MS2			; Go print message


SS%MESSAGE:

	PUSHJ	P,NOINT			; Turn off interrupts
	JRST	SS%MS4			;$
	PUSH	P,[[ASCIZ |%% MX - |]]	; Get prefix
	PUSHJ	P,OTSTR			; Output it
	ADJSP	P,-1			; Fix the stack

	SKIPE	ATINTL##		; Are we at interrupt level???
	 JRST	 [PUSH	P,[[ASCIZ |[(Interrupt)]:|]] ; Yes, use this one
		  PUSHJ	P,OTSTR		; Simulate an outstr
		  ADJSP	P,-1		; Fix the stack
		  MOVEI	T4,^d15		; Get spacing factor
		  JRST	SS%MS2]		; And continue on happily

	SKIPN	T2,CURTSK		; Get address of current task block
	 JRST	[PUSH	P,[[ASCIZ |[(none)]:|]]
		 PUSHJ	P,OTSTR		; Simulate an outstr
		 ADJSP	P,-1		; Fix the stack
		 MOVEI T4,^d10
		 JRST SS%MS2]

	PUSH	P,[[ASCIZ |[|]]		; Start task name output
	PUSHJ	P,OTSTR			; Simulate an outstr
	ADJSP	P,-1			; Fix the stack

	MOVEI	T4,^d16			; Get the maximum number of chars
	MOVEI	T2,TB.NAM##(T2)		; Point to name of task
        HRLI	T2,440700
SS%MS1:	ILDB	T1,T2			; Get next character in name
	SKIPN	T1			; Check for null character
	 JRST	 SS%MS3			;  Null, quit now
	PUSHJ	P,OUTC			; Output the character
	SOJG	T4,SS%MS1		; .. increment count and loop
SS%MS3:
	MOVEI	T3,^D16			; Get the starting number of chars
	SUBM	T3,T4			; T4 now equals the length of the name

	PUSH	P,[[ASCIZ |]:|]] 	; Terminate the task name
	PUSHJ	P,OTSTR			; Simulate an outstr
	ADJSP	P,-1			; Fix the stack
	ADDI	T4,4			; Add " [", "]:" to count

SS%MS2:	MOVE	T1,[POINT 7,[ASCIZ \                     \]]
	EXCH	T1,T4
	ADJBP	T1,T4
	PUSH	P,T1			; Save byte pointer
	PUSHJ	P,SS%CLMESSAGE		; Output alignment spaces
	ADJSP	P,-1			; .. restore stack

SS%MS4:	PUSH	P,-1(P)			; Do a silly thing
	PUSHJ	P,SS%CLMESSAGE		; Go output supplied message
	ADJSP	P,-1			; Fix the stack
	PUSH	P,[[BYTE (7)15,12]]	; Finish off message with a <CRLF>
	PUSHJ	P,OTSTR			; Simulate an outstr
	ADJSP	P,-1			; Fix the stack
	PUSHJ	P,OUTFIN		; and flush out the buffer
	PJRST	YESINT			; and re-enable interrupts


	NMU$FATAL==:SS%TFATAL
SS%TFATAL::
	PUSH	P,[[ASCIZ |? Fatal error - |]]
	PUSHJ	P,OTSTR			; Simulate an outstr
	ADJSP	P,-1			; Fix the stack
	PUSH	P,-1(P)
	PUSHJ	P,SS%MESSAGE
	PUSHJ	P,OUTFIN		; And flush the buffer
	EXIT	1,			; Stop execution
	JRST	.-1

	SUBTTL	OUTC	Output character buffering and lowest level tty I/O

; OUTC		- Output the character in T1
; OUTFIN	- Flush out the remaining buffer

OUTS:	PUSHJ	P,OUTFIN		; Call the string putter outter

OUTC:	SOSGE	OUTCNT			; Any room left?
	 JRST	 OUTS			;  Nope, dump out the buffer
	IDPB	T1,OUTPTR		; Yes, install the character
	POPJ	P,			; And return happily

OUTFIN:	PUSH	P,T1			; Save T1
	SETZ	T1,			; Get a null
	IDPB	T1,OUTPTR		; Tie off the end of the buffer
	SETO	T1,			; We want to know about this jobs'
	TRMNO.	T1,			;  controlling terminal
	 JRST	 TELOPR			;  Detached -- tell OPR
OUTOUT:	OUTSTR	OUTBFR			; Output the buffer to the tty
FINOUT:	MOVEI	T1,^D80			; Line buffer is 80 characters
	MOVEM	T1,OUTCNT		; Buffer is now officially empty
	MOVE	T1,[POINT 7,OUTBFR]	; Get the buffer pointer
	MOVEM	T1,OUTPTR		; Install it
	POP	P,T1			; Restore the work AC
	POPJ	P,			; And return

TELOPR:	MOVX	T1,QF.PIP!QF.NBR!.QUWTO	; Get WTO function
	MOVEM	T1,QUEBLK+.QUFNC	; Save in QUEUE. arg block
	SETZM	QUEBLK+.QUNOD		; Set for central node
	SETZM	QUEBLK+.QURSP		; No response desired
	MOVE	T1,[^D80/5+1,,.QBMSG]	; Argument block is WTO message
	MOVEM	T1,QUEBLK+.QUARG	; ...
	MOVEI	T1,OUTBFR		; Argument is WTO buffer address
	MOVEM	T1,QUEBLK+.QUARV	; ...
	MOVE	T1,[^D80/5+1,,.QBTYP]	; Argument block is WTO message type
	MOVEM	T1,QUEBLK+.QUARG+2	; ...
	MOVEI	T1,[ASCIZ |Message from MX|]
	MOVEM	T1,QUEBLK+.QUARV+2	; ...
	MOVE	T1,[7,,QUEBLK]		; Get QUEUE. argument pointer
	QUEUE.	T1,			; Send message to OPR
	  SKIPA				; Failed, use TRMOP.
	JRST	FINOUT			; Success, go reset the buffer
	MOVSI	T1,'OPR'		; Get the device name
	IONDX.	T1,			; Get it's UDX
	 JRST	 OUTOUT			;  Well, what can I do!
	MOVEM	T1,TRMBLK+1		; Install the udx
	MOVEI	T1,[ASCIZ |--  Message from MX --
|]
	MOVEM	T1,TRMBLK+2		; Output header string first
	MOVE	T1,[XWD 3,TRMBLK]	; Set up for the TRMOP.
	TRMOP.	T1,			; Output to OPR
	  JFCL				; Ignore error
	MOVEI	T1,OUTBFR		; Get address of message
	MOVEM	T1,TRMBLK+2		; Store in TRMOP. block
	MOVE	T1,[XWD 3,TRMBLK]	; Set up for the TRMOP.
	TRMOP.	T1,			; Output to OPR
	 JRST	 OUTOUT			;  Might as well hang in TO
	JRST	FINOUT			; SUCCESS! Go clean up the buffer
	SUBTTL	NOINT Turn off interrupts in a recursive manner

NOINT:	AOSE	INTOFF			; Been here already???
	 POPJ	 P,			;  Yes, don't bother
	PUSH	P,T1			; Preserve this AC
	MOVX	T1,PS.FOF		; Function is PIOFF
	PISYS.	T1,			; Disable interrupts
	 JFCL				;  Maybe no PSIs yet???
	POP	P,T1			; Restore work ac
	POPJ	P,

YESINT:	SOSL	INTOFF			; Should we enable interrupts
	 POPJ	P,			;  No, not now
	MOVX	T1,PS.FON		; Function is PION
	PISYS.	T1,			; Enable interrupts
	 JFCL				;  Who cares
	POPJ	P,			; Return
	RELOC				; Low seg stuff
OUTCNT:	^D80				; Lotsa room to begin with
OUTPTR:	POINT	7,OUTBFR		; Output buffer pointer
OUTBFR:	BLOCK	^D80/5+1		; The buffer itself

QUEBLK:	BLOCK	7			; QUEUE. arg block for WTO functions

TRMBLK:	.TOOUS				; Output asciz string
	0				; No udx yet
	OUTBFR				; Point to the buffer

INTOFF:	-1				; NOINT interlock
CRSACS:	XWD	1,.+1			; AC for BLT to save context
	BLOCK	17			; Place to save AC's on a reenter
CRSPC:	BLOCK	1			; Death PC
TMPSTK:	IOWD	TMPLEN,.+1		; Temporary PDL for death processing
	BLOCK	10			; Doesn't need to be very long
	TMPLEN==.-TMPSTK

SAVFLP:	XWD	FLPLEN,.+1		; AC for FILOP. for save of dead NML
	XWD	0,.FORED		; Channel 0, Lookup a file
	Z				; Don't care about I/O mode
	SIXBIT	|DUMP|			; Device
	XWD	0,0			; No I/O, no buffer headers
	XWD	0,0			; Don't allocate any buffers
	XWD	0,LKEBLK		; Point to LOOKUP/ENTER block
	FLPLEN==.-SAVFLP-1

LKEBLK:	EXP	3			; Length of this block
	EXP	0			; Default PPN from device
	SIXBIT	|MXD000|		; Filename
	XWD	'EXE',0			; Extension,,path block

SAVARG:	SIXBIT	|DUMP|
	SIXBIT	|MXD000|
	SIXBIT	|EXE|
	EXP	0
	EXP	0
	EXP	0
	EXP	0
	SUBTTL	Literals

	XLIST				; Suppress uninteresting stuff
	RELOC				; Back into the high seg
	LIT				; Put the literals here
	LIST				; Enable listing again
	END