PDP-10 Archive: decus/20-0069/vted.mac from decus_20tap2

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	TITLE VTED   -   TEXT RECEIVING AND EDITING PROGRAM
	ENTRY VTED      ;GUARANTEED NOT TO LOSE MUCH DATA ON A CRASH

loc 137
vvted::	1
reloc

IFNDEF NOECHO,<NOECHO=-1>

	DEFINE ERRMES(A)
<	JRST [TTCALL 3,[ASCIZ/
A/]
		SETZM .JBINT##
		EXIT 1,
		JRST VTED]>

	P=17
	C=16
	M=15
	P2=14
	P1=13

	AC=0
	T1=10
	T2=11
	T3=12
	T4=4
	T5=5
	TEMP=6
	SAC=7

	DSK=1
	TTY=2
	PRF=3

	HORMAX=^D71
	VERMAX=^D20

	BELL=7
	LF=12
	CR=15
	TAB=11
	ALT=33
	FORM=^D12
	BAKSPC=10
	RUBOUT=177
	CRSRUP=32
	EOL=36
	HOME=^D29
	EOS=^D31
	UPARO=^D26
	DWNARO=^D11
	FORARO=^D24
	BAKARO=^D8
	BAKAR1=^D25

	FRUST=4			;Number of ^C's before exiting
	FLINES=5			;Number of Line-Feeds in a Form-feed
	NLINES=5			;Lines typed on an append
	TLINES=1			;Lines typed on a search

IFE NOECHO,<
	WIDTH=HORMAX
	FREECR=2012
	TTYMOD=500>

IFN NOECHO,<
	WIDTH=1
	FREECR=2010
	TTYMOD=700>

VTED:	RESET
	MOVE P,[IOWD PDLEN,PDLST]
	SETZM PRFFLG#
	SETZM OLDCHR#
	SETZM FASTF#
	SETZM NXTCHR#
	SETZM LSTCHR#
	SETOM MOVFLG#
	MOVEI FILL4
	MOVEM FILFLG#
	SETZM CAPSIM#
	SETZM STOCNT
	SETO AC,
	GETLCH AC
	MOVEM AC,SAVTTY#
	TLZ AC,(1B13)
	TRO AC,200000
	HRRZM AC,IOINDX
	HRRZM AC,FRMBLK+1
	SETLCH AC
	MOVEI 0,FREECR
	MOVE 1,IOINDX
	MOVEI 2,WIDTH
	MOVSI 3,3
	TRMOP. 3,
	JFCL
	MOVE AC,[XWD 3,FRMBLK]
	TRMOP. AC
	JFCL
	PUSHJ P,GETNAM
	PUSHJ P,OPNFIL
	INIT TTY,TTYMOD
	SIXBIT/TTY/
	EXP TIBUF
	ERRMES(<TTY not available>)
	SETZM BUFF
	MOVE P1,[XWD BUFF,BUFF+1]
	BLT P1,BUFF+177
	SETO AC,
	GETLCH AC
	TLO AC,(1B13)
	SETLCH
	MOVE .JBFF##
	MOVEM STOBUF
	PUSHJ P,GTBAUD
	MOVEI C,EOS
	PUSHJ P,TYPCHR
	SETZM DONFLG#
	SETZM INTBLK+2
	MOVEI INTBLK
	MOVEM .JBINT##
	MOVE SAVTTY
	TLNN (1B13)
	SETOM CAPSIM
LOOP:	PUSHJ P,GETCHR
IFE NOECHO,<
	PUSHJ P,UPDATE>
	CAIE C,BAKAR1
	CAIN C,BAKARO
	JRST BAK1WD
	CAIN C,FORARO
	JRST FOR1WD
	CAIN C,UPARO
	JRST BAK1LN
	CAIN C,DWNARO
	JRST FOR1LN
	CAIN C,RUBOUT
	JRST RUB1CH
	CAIN C,ALT
	JRST COMAND
	CAIN C,EOL
	JRST DELEOL
	CAIN C,EOS
	JRST DELEOS
IFN NOECHO,<
	PUSHJ P,UPTYP>
	PUSHJ P,PUTCHR
	JRST LOOP

GETCHR:	SKIPE NXTCHR
	JRST GETNXT
GETCH:	INCHRW C
GETCH2:	PUSHJ P,CHKFIL
	SKIPE DONFLG
	JRST DONE
	CAIN C,FORM
	PUSHJ P,CHKFRM
	CAIE C,LF
	JRST GETCH1
	MOVEI CR
	CAMN LSTCHR
	JRST GETCH1
	AOS T1,NXTCHR
	MOVEM C,SAVCHR-1(T1)
	MOVEI C,BELL
	PUSHJ P,TYPEC
	MOVEI C,CR
IFE NOECHO,<
	PUSHJ P,UPTYP>
GETCH1:	MOVE LSTCHR
	MOVEM OLDCHR
	CAIE BAKARO
	CAIN BAKAR1
	PUSHJ P,CHKEOL
	CAIN UPARO
	PUSHJ P,CHKEOL
	MOVEM C,LSTCHR
IFE NOECHO,<
	CAIN C,FORM
	JRST TYPFRM>
	POPJ P,

CHKEOL:	CAIE C,BAKARO
	CAIN C,BAKAR1
	POPJ P,
	CAIE C,UPARO
	CAIN C,EOS
	POPJ P,
	TTCALL 15,[EOL]
	POPJ P,

GETNXT:	SOS C,NXTCHR
	MOVE C,SAVCHR(C)
	JRST GETCH2

CHKFRM:	PUSHJ P,SCAN
	CAIE C,FORM
	CAIN C,LF
	JRST [	MOVEI C,FORM
		POPJ P,]
	MOVEI C,FORM
	AOS T1,NXTCHR
	MOVEM C,SAVCHR-1(T1)
	MOVEI C,LF
	POPJ P,

SAVCHR:	BLOCK 3

PUTCHR:	JUMPE C,CPOPJ
	SOSG OUTCNT
	JRST PUTBF
	IDPB C,OUTPNT
	SKIPN FASTF
	CAIE C,12
CPOPJ:	POPJ P,
	MOVE P1,BLKPNT
	USETO DSK,(P1)
	OUT DSK,CL
	POPJ P,
PUTERR:	ERRMES(<Output error - FATAL!>)

PUTBF:	MOVE P1,[POINT 7,BUFF]
	MOVEM P1,OUTPNT
	MOVEI P1,200*5
	MOVEM P1,OUTCNT
	MOVE P1,BLKPNT
	JUMPE P1,PUTBF1
	USETO DSK,(P1)
	OUT DSK,CL
PUTBF1:	AOSA P1,BLKPNT
	JRST PUTERR
	SETZM BUFF
	MOVE P1,[XWD BUFF,BUFF+1]
	BLT P1,BUFF+177
	SKIPE FASTF
	JRST PUTCHR
	MOVE P1,BLKPNT
	USETO DSK,(P1)
	OUTPUT DSK,CL
	CLOSE DSK,
	LOOKUP DSK,NAME
	ERRMES(<Lookup Error on File>)
	HLLZS NAME+1
	SETZM NAME+2
	SETZM NAME+3
	ENTER DSK,NAME
	ERRMES(<ENTER Failure on File>)
	JRST PUTCHR

BAK1WD:
IFE NOECHO,<
	SETOM BAKFLG#
	SKIPN MOVFLG
	AOS BAKFLG>
	PUSHJ P,SCAN
IFE NOECHO,<
	CAIN C,TAB
	AOS BAKFLG>
	CAIE C,FORM
	CAIN C,LF
	JRST BAKLN1
	JRST BAKWD4
BAKWD3:	PUSHJ P,SCAN
BAKWD4:	PUSHJ P,TEXT
	JRST BAKWD5
	PUSHJ P,DELETE
IFE NOECHO,<
	AOSE BAKFLG>
	PUSHJ P,BAKCSR
	JUMPE C,LOOP
	PUSHJ P,STOBYT
	JRST BAKWD3
BAKWD1:	PUSHJ P,SCAN
	PUSHJ P,TEXT
	SKIPA
	JRST LOOP
BAKWD5:	CAIE C,FORM
	CAIN C,LF
	JRST LOOP
BAKWD2:	PUSHJ P,DELETE
IFE NOECHO,<
	AOSE BAKFLG>
	PUSHJ P,BAKCSR
	JUMPE C,LOOP
	PUSHJ P,STOBYT
	JRST BAKWD1

FOR1WD:
IFE NOECHO,<
	MOVEI C,BAKARO
	SKIPE MOVFLG
	PUSHJ P,UPTYP>
	MOVEI C,EOL
	PUSHJ P,TYPEC
	PUSHJ P,GETBYT
	JRST FORWD4
	JRST FORWD6
FORWD2:	PUSHJ P,GETBYT
	JRST FORWD4
	CAIE C,FORM
	CAIN C,CR
	JRST FORWD3
FORWD6:	PUSHJ P,PUTCHR
	PUSHJ P,UPTYP
	CAIN C,LF
	JRST FORWD4
	PUSHJ P,TEXT
	JRST FORWD2
FORWD1:	PUSHJ P,GETBYT
	JRST FORWD4
	CAIE C,FORM
	CAIN C,CR
	JRST FORWD3
	PUSHJ P,TEXT
	JRST FORWD3
	PUSHJ P,PUTCHR
	PUSHJ P,UPTYP
	JRST FORWD1
FORWD3:	PUSHJ P,STOBYT
FORWD4:	JRST LOOP

CHKEND:	CAIN C,TAB
	JRST CHKETB
	MOVE HORCNT
	CAIGE HORMAX-1
	POPJ P,
	CAIN C,ALT
	JRST CHKND1
	CAIL C,40
	CAIL C,175
	POPJ P,
	CAIL C,"A"
	CAILE C,"Z"
	JRST CHKND1
	SKIPE CAPSIM
	JRST CHKND2
CHKND1:	CAIGE HORMAX
	POPJ P,
CHKND2:	MOVEI M,[BYTE (7)CR,LF,0]
	JRST MESOUT

CHKETB:	PUSH P,HORCNT
	PUSH P,VERCNT
	PUSHJ P,UPDATE
	MOVE HORCNT
	POP P,VERCNT
	POP P,HORCNT
	CAML HORCNT
	POPJ P,
	JRST CHKND2

BAK1LN:
IFE NOECHO,<
	MOVEI C,DWNARO
	SKIPE MOVFLG
	PUSHJ P,UPTYP>
	MOVEI C,CR
	PUSHJ P,TYPCHR
BAKLN1:	PUSHJ P,DELETE
	PUSHJ P,SBKCSR
	JUMPE C,LOOP
	PUSHJ P,STOBYT
	CAIE C,FORM
	CAIN C,CR
	JRST LOOP
	JRST BAKLN1

FOR1LN:
IFE NOECHO,<
	MOVEI C,UPARO
	SKIPE MOVFLG
	PUSHJ P,UPTYP>
	MOVEI C,EOL
	PUSHJ P,TYPEC
	SETZM FORFLG#
FORLN1:	PUSHJ P,GETBYT
	JRST FORLN2
	CAIE C,FORM
	CAIN C,CR
	JRST [	SKIPN FORFLG
		JRST .+1
		PUSHJ P,STOBYT
		JRST FORLN2]
	AOS FORFLG
	PUSHJ P,PUTCHR
	PUSHJ P,UPTYP
	JRST FORLN1
FORLN2:	MOVEI C,EOL
	PUSHJ P,TYPEC
	JRST LOOP

RUB1CH:	PUSHJ P,DELETE
	PUSHJ P,BAKCSR
	CAIN C,LF
	jrst [	pushj P,SCAN
		CAIn C,CR
		jrst rub1ch
		jrst .+1]
	MOVEI C,EOL
	PUSHJ P,TYPEC
	JRST LOOP

DELEOL:	PUSHJ P,TYPEC
DEOL1:	PUSHJ P,GETBYT
	JRST LOOP
	CAIN C,LF
	JRST LOOP
	JRST DEOL1

DELEOS:	CAME C,OLDCHR
	JRST LOOP
	PUSHJ P,TYPEC
	SETZM STOCNT
	SETZM PRFFLG
	JRST LOOP

COMAND:	CAME C,OLDCHR
	JRST [	PUSHJ P,PUTCHR
		PUSHJ P,UPTYP
		JRST LOOP]
	PUSHJ P,DELETE
	MOVEI C,EOS
	PUSHJ P,TYPEC
COMND1:	MOVEI M,[ASCIZ/
Enter command!   /]
	PUSHJ P,MESOUT
	PUSHJ P,GETCHR
	CAIE C,"S"
	CAIN C,163
	SKIPA
	JRST COMERR
	SETSTS TTY,0
	MOVEI M,[ASCIZ/Search for:
/]
	PUSHJ P,MESOUT
	MOVSI T4,1-SBUFL*5
	MOVE T5,[POINT 7,SBUF]
COMLOP:	INCHWL C
	CAIE C,ALT
	IDPB C,T5
	CAIE C,ALT
	AOBJN T4,COMLOP
	TRNE T4,-1
	HRRZM T4,SCNT#
	SETZM LSTCHR
	SETZM OLDCHR
	JUMPGE T4,SBUFUL
SLOOP0:	MOVE T4,[POINT 7,SBUF]
	MOVE SAC,[POINT 7,SBUF1]
	MOVE T5,SCNT
	SETOM FASTF
SLOOP1:	PUSHJ P,GETBYT
	JRST SDONE
	ILDB T3,T4
	IDPB C,SAC
	CAMN T3,C
	JRST SLOOP3
	CAIL T3,101
	CAILE T3,132
	JRST [	CAIL T3,141
		CAILE T3,172
		JRST NOMACH
		JRST .+1]
	TRC T3,40
	CAME T3,C
	JRST NOMACH
SLOOP3:	SOJG T5,SLOOP1
	MOVE T4,[POINT 7,SBUF1]
	MOVE T5,SCNT
SLOOP2:	ILDB C,T4
	PUSHJ P,PUTCHR
	SOJG T5,SLOOP2
SDONE:	SETZM FASTF
	MOVEI M,[BYTE (7)HOME,EOS,0]
	PUSHJ P,MESOUT
	SETZB SAC,TEMP
SDONE1:	PUSHJ P,DELETE
	JUMPE C,SDONE2
	PUSHJ P,STOBYT
	AOS SAC
	CAIE C,CR
	JRST SDONE1
	CAIGE TEMP,TLINES
	AOJA TEMP,SDONE1
SDONE2:	SETSTS TTY,TTYMOD
SDONE3:	PUSHJ P,GETBYT
	JRST LOOP
	PUSHJ P,PUTCHR
	PUSHJ P,UPTYP
	SOJG SAC,SDONE3
	JRST LOOP

NOMACH:	MOVE T4,[POINT 7,SBUF1]
	SUB T5,SCNT
	MOVN SAC,T5
NOMAC1:	JUMPE T5,NOMAC2
	PUSH P,C
	ILDB C,T4
	PUSHJ P,PUTCHR
	POP P,C
	AOJA T5,NOMAC1
NOMAC2:	PUSHJ P,PUTCHR
NOMAC3:	JUMPE SAC,SLOOP0
	PUSHJ P,DELETE
	PUSHJ P,STOBYT
	SOJA SAC,NOMAC3

COMERR:	MOVEI C,"?"
	PUSHJ P,TYPEC
	JRST COMND1

SBUFUL:	MOVEI M,[ASCIZ/
Maximum search string length reached... starting search!
/]
	PUSHJ P,MESOUT
	JRST SLOOP0

STOBYT:	MOVE 1,STOCNT#
	IDIVI 1,5
	ADD 1,STOBUF
	CAML 1,.JBREL
	JRST GETCOR
	DPB C,STOPNT(2)
	AOS STOCNT
	POPJ P,

GETBYT:	SOSGE 1,STOCNT
	JRST GETBP
	IDIVI 1,5
	ADD 1,STOBUF
	LDB C,STOPNT(2)
CPOPJ1:	AOS (P)
	POPJ P,

GETBP:	SETZM STOCNT
	SKIPN PRFFLG
	POPJ P,
	JRST GETPRF

STOPNT:	POINT 7,(1),6
	POINT 7,(1),13
	POINT 7,(1),20
	POINT 7,(1),27
	POINT 7,(1),34

GETCOR:	MOVE .JBREL##
	ADDI 2000
	CORE
	ERRMES(<NO MORE CORE AVAILABLE FOR TEMPORARY STORAGE>)
	JRST STOBYT

SCAN:	PUSHJ P,DELETE
	JRST PUTCHR

DELETE:	SETZM LSTRUB
	MOVE AC,OUTCNT
	CAIL AC,200*5
	JRST BAKDSK
	LDB T2,[POINT 6,OUTPNT,5]
	IDIVI T2,7
	SUBI T2,4
	MOVNS T2
	HRRZ T1,OUTPNT
	SUBI T1,BUFF
BAKLOP:	LDB AC,PNTTAB(T2)
	MOVEM AC,LSTRUB#
	AOS OUTCNT
	JUMPN AC,BAKDON
	SOJGE T2,BAKLOP
	SOJGE T1,[	MOVEI T2,4
			JRST BAKLOP]
BAKDSK:	MOVE P1,BLKPNT
	CAIN P1,1
	JRST BAKDN1
	USETO DSK,(P1)
	OUTPUT DSK,CL
	SOS P1,BLKPNT
	SETZM OUTCNT
	MOVEI T2,4
	MOVEI T1,177
	USETI DSK,(P1)
	INPUT DSK,CL
	JRST BAKLOP
BAKDON:	MOVEI AC,0
	DPB AC,PNTTAB(T2)
	SOJGE T2,BAKDN2
	MOVEI T2,4
	SOJGE T1,BAKDN2
BAKDN1:	MOVE AC,[POINT 7,BUFF]
	JRST BAKDN3
BAKDN2:	MOVE AC,PNTTAB(T2)
	ADDI AC,(T1)
	TLZ AC,37
BAKDN3:	MOVEM AC,OUTPNT
	MOVE C,LSTRUB
	POPJ P,

SBKCSR:	SETOM SILENT#
	SKIPA
BAKCSR:	SETZM SILENT
	CAIN C,LF
	JRST BAKLF
	CAIN C,CR
	JRST BAKCR
	CAIN C,TAB
	JRST BAKTAB
	CAIN C,FORM
	JRST BAKFRM
	CAIN C,ALT
	JRST BAKCS1
	CAIL C,40
	CAIL C,175
	POPJ P,
BAKCS1:	PUSH P,C
	SKIPG HORCNT
	PUSHJ P,BAKCS2
	MOVEI C,BAKARO
	SKIPN SILENT
	PUSHJ P,TYPEC
	PUSHJ P,UPDATE
	SKIPE CAPSIM
	PUSHJ P,BAKCAP
	POP P,C
	POPJ P,
BAKCS2:	MOVEI C,UPARO
	PUSHJ P,UPTYP
	MOVEI C,CR
	PUSHJ P,BAKCR
	MOVE C,-1(P)
	JRST UPTYP

BAKCAP:	MOVE C,-1(P)
	CAIL C,"A"
	CAILE C,"Z"
	POPJ P,
	MOVEI C,"^"
	JRST BAKCS1

BAKLF:	MOVEI C,UPARO
	PUSHJ P,UPTYP
	MOVE C,LSTRUB
	POPJ P,

BAKFRM:	MOVEI C,UPARO
	MOVEI P1,FLINES
	PUSHJ P,UPTYP
	SOJG P1,.-1
	MOVEI C,CR
	PUSHJ P,UPTYP
	MOVEI C,FORM
	POPJ P,

BAKCR:	SETZM CRCNT#
	PUSHJ P,UPTYP
	MOVEI C,EOL
	PUSHJ P,TYPEC
BAKCR0:	PUSHJ P,DELETE
	JUMPE C,BAKCR2
	CAIE C,FORM
	CAIN C,LF
	JRST BAKCR1
	PUSHJ P,STOBYT
	AOS CRCNT
	JRST BAKCR0
BAKCR1:	PUSHJ P,PUTCHR
BAKCR2:	PUSH P,VERCNT
	PUSH P,HORCNT
BAKCR9:	PUSH P,STOCNT
	SETOM CRFLG#
	SETZM CRCNT1#
BAKCR3:	SOSGE CRCNT
	JRST BAKCR4
	PUSHJ P,GETBYT
	JFCL
	MOVE P1,HORCNT
	AOSN CRFLG
	SETZ P1,
	PUSHJ P,UPDATE
	CAMLE P1,HORCNT
	JRST BAKCR5
	AOS CRCNT1
	JRST BAKCR3
BAKCR4:	POP P,STOCNT
	POP P,HORCNT
	POP P,VERCNT
BAKCR7:	SOSGE CRCNT1
	JRST BAKCR6
	PUSHJ P,GETBYT
	JFCL
	PUSHJ P,PUTCHR
	PUSHJ P,UPTYP
	JRST BAKCR7

BAKCR6:	MOVEI C,CR
	POPJ P,

BAKCR5:	MOVEM P1,HORCNT
	AOS CRCNT
	POP P,STOCNT
BAKCR8:	SOSGE CRCNT1
	JRST BAKCR9
	PUSHJ P,GETBYT
	JFCL
	PUSHJ P,PUTCHR
	JRST BAKCR8

BAKTAB:	SETZM TABCNT#
BAKTB0:	PUSHJ P,DELETE
	JUMPE C,BAKTB2
	CAIN C,LF
	JRST BAKTB1
	PUSHJ P,STOBYT
	AOS TABCNT
	JRST BAKTB0
BAKTB1:	PUSHJ P,PUTCHR
BAKTB2:	PUSH P,VERCNT
	PUSH P,HORCNT
	SETZM HORCNT
BAKTB3:	SOSGE TABCNT
	JRST BAKTB4
	PUSHJ P,GETBYT
	JFCL
	PUSHJ P,PUTCHR
	PUSHJ P,UPDATE
	JRST BAKTB3
BAKTB4:	MOVN P2,HORCNT
	POP P,HORCNT
	POP P,VERCNT
	ADD P2,HORCNT
	JUMPL P2,BAKTB6
BAKTB5:	SOJL P2,BAKTB7
	MOVEI C,BAKARO
	PUSHJ P,UPTYP
	JRST BAKTB5
BAKTB6:	MOVEI C,UPARO
	PUSHJ P,UPTYP
	MOVEI C,CR
	PUSHJ P,BAKCR
BAKTB7:	MOVEI C,TAB
	POPJ P,

TEXT:	CAIE C,ALT
	CAILE C," "
	JRST CPOPJ1
	POPJ P,

TYPFRM:	MOVEI C,CR
	PUSHJ P,UPTYP
	MOVEI C,LF
	MOVEI P1,FLINES
	PUSHJ P,UPTYP
	SOJG P1,.-1
	MOVEI C,FORM
	POPJ P,

MESOUT:	PUSH P,C
	HRLI M,(POINT 7,0)
MESOT1:	ILDB C,M
	JUMPE C,[POP P,C
		POPJ P,]
	PUSHJ P,UPTYP
	JRST MESOT1

TYPEC:	CAIE C,LF
	JRST TYPE
	PUSHJ P,TYPE
	TTCALL 1,[EOL]
	POPJ P,

TYPE:	CAIN C,CR
	TTCALL 1,[EOL]
TYPCHR:	CAIN C,FORM
	JRST TYPFRM
	PUSHJ P,CHKEND
	SKIPE CAPSIM
	PUSHJ P,CHKCAP
	CAIN C,ALT
	JRST [	TTCALL 1,["$"]
		POPJ P,]
	TTCALL 1,C
CHKFIL:	SKIPN TEMP,FILFLG
	POPJ P,
	CAIE C,LF
	CAIN C,DWNARO
	JRST (TEMP)
	CAIE C,UPARO
	CAIN C,EOS
	JRST (TEMP)
	CAIE C,HOME
	POPJ P,
	SETZM HORCNT
	SETZM VERCNT
	JRST (TEMP)

CHKCAP:	CAIL C,"A"
	CAILE C,"Z"
	POPJ P,
	PUSH P,C
	MOVEI C,"^"
	PUSHJ P,TYPEC
	POP P,C
	POPJ P,

UPTYP:	PUSHJ P,TYPEC
UPDATE:	SETOM MOVFLG
	CAIL C,40
	CAIL C,175
	JRST SPCCHR
UPDT1:	SKIPGE HORCNT
	SETZM HORCNT
	SKIPE CAPSIM
	PUSHJ P,CAPUP
	AOS 1,HORCNT
	CAIG 1,HORMAX
	POPJ P,
	IDIVI 1,HORMAX
	MOVEM 2,HORCNT
SPLF:	SKIPGE VERCNT
	SETZM VERCNT
	AOS 1,VERCNT
	CAIGE 1,VERMAX
	POPJ P,
	MOVEI 1,VERMAX-1
	MOVEM 1,VERCNT
	POPJ P,

CAPUP:	CAIL C,"A"
	CAILE C,"Z"
	POPJ P,
	AOS HORCNT
	POPJ P,

SPCCHR:	CAIN C,11
	JRST SPTAB
	CAIN C,12
	JRST SPLF
	CAIN C,15
	JRST SPCR
	CAIN C,UPARO
	JRST SPUPAR
	CAIE C,BAKAR1
	CAIN C,BAKARO
	JRST SPBKAR
	CAIN C,DWNARO
	JRST SPDNAR
	CAIN C,FORARO
	JRST SPFRAR
	CAIN C,ALT
	JRST UPDT1
	SETZM MOVFLG
	POPJ P,

SPTAB:	MOVE HORCNT
	TRZ 7
	ADDI 8
	CAILE HORMAX
	MOVEI 8
	MOVEM HORCNT
	POPJ P,

SPCR:	SETZM HORCNT
	POPJ P,

SPUPAR:	SKIPG VERCNT
	SETZM MOVFLG
	MOVEI VERMAX-1
	CAMGE VERCNT
	MOVEM VERCNT
	SOS VERCNT
	POPJ P,

SPDNAR:	MOVE VERCNT
	CAIL VERMAX-1
	SETZM MOVFLG
	SKIPGE VERCNT
	SETZM VERCNT
	AOS VERCNT
	POPJ P,

SPBKAR:	SKIPG HORCNT
	SETZM MOVFLG
	MOVEI HORMAX
	CAMGE HORCNT
	MOVEM HORCNT
	SOS HORCNT
	POPJ P,

SPFRAR:	MOVE HORCNT
	CAIL HORMAX
	SETZM MOVFLG
	SKIPGE HORCNT
	SETZM HORCNT
	AOS HORCNT
	POPJ P,

GETERR:	TTCALL 11,
	MOVEI M,[ASCIZ/
Use the format:  NAME.EXT<CR>
/]
	PUSHJ P,MESOUT
GETNAM:	MOVEI M,[ASCIZ/File name?   /]
	PUSHJ P,MESOUT
	MOVEI AC,6
	MOVE T1,[POINT 6,NAME]
	SETZM NAME
	SETZM NAME+1
	INCHWL C
	JRST GETLP2
GETLOP:	INCHSL C
	JRST GETERR
GETLP2:	CAIN C,15
	JRST GETDON
	CAIN C,"."
	JRST GETEXT
	SUBI C,40
	IDPB C,T1
	SOJG AC,GETLOP
GETLP1:	INCHSL C
	JRST GETERR
	CAIN C,15
	JRST GETDON
	CAIE C,"."
	JRST GETLP1
GETEXT:	MOVEI AC,3
	MOVE T1,[POINT 6,NAME+1]
GETELP:	INCHSL C
	JRST GETERR
	CAIN C,15
	JRST GETDON
	SUBI C,40
	IDPB C,T1
	SOJG AC,GETELP
GETDON:	TTCALL 11,
	POPJ P,

PROOF:	PUSHJ P,OVERWRITE
	INIT PRF,0
	SIXBIT /DSK/
	EXP PIBUF
	ERRMES (<DSK NOT AVAILABLE>)
	INBUF PRF,2
	HLLZS NAME1+1
	SETZM NAME1+2
	SETZM NAME1+3
	LOOKUP PRF,NAME1
	ERRMES(<Cannot find proof file.>)
	SETOM PRFFLG
	POPJ P,

GETPRF:	SOSGE PIBUF+2
	JRST GETPBF
	ILDB C,PIBUF+1
	JUMPE C,GETPRF
	JRST CPOPJ1
GETPBF:	IN PRF,
	JRST GETPRF
	SETZM PRFFLG
	POPJ P,

PIBUF:	BLOCK 3

OPNFIL:	INIT 1,17
	SIXBIT/DSK/
	0
	ERRMES(<DSK NOT AVAILABLE>)
	SETZ P1,
	LOOKUP DSK,NAME
	JRST OPNFL1
	MOVEI M,[ASCIZ/File already exists
Do you want to: Proof, Append, or Overwrite?  /]
	PUSHJ P,MESOUT
OPNFL2:	INCHWL C
	TTCALL 11,
	CAIN C,"P"
	JRST PROOF
	CAIN C,"A"
	JRST APPEND
	CAIN C,"O"
	JRST OVERWRITE
	MOVEI M,[ASCIZ/ Answer A or O   /]
	PUSHJ P,MESOUT
	JRST OPNFL2
APPEND:	HLLZS NAME+1
	SETZM NAME+2
	HLRE P1,NAME+3
	JUMPGE P1,OPNFL1
	MOVMS P1
	IDIVI P1,200
OPNFL1:	AOS P1
	MOVEM P1,BLKPNT
	SETZM NAME+3
	ENTER DSK,NAME
	ERRMES(<ENTER FAILURE ON FILE>)
	SETZM OUTCNT
	MOVE P1,[POINT 7,BUFF]
	MOVEM P1,OUTPNT
	MOVEI P1,200*5
	MOVEM P1,OUTCNT
	MOVE P1,BLKPNT
	USETO DSK,1(P1)
	SETZM BUFF
	MOVE T1,[XWD BUFF,BUFF+1]
	BLT T1,BUFF+177
	OUTPUT DSK,CL
	CLOSE DSK,
	LOOKUP DSK,NAME
	ERRMES(<LOOKUP ERROR ON FILE>)
	HLLZS NAME+1
	SETZM NAME+2
	SETZM NAME+3
	ENTER DSK,NAME
	ERRMES(<ENTER FAILURE ON FILE>)
	MOVEI M,[BYTE (7)HOME,EOS,CR,0]
	PUSHJ P,MESOUT
	SETZM HORCNT#
	SETZM VERCNT#
	MOVEI T3,NLINES
APLOP:	CAIG P1,1
	POPJ P,
	USETI DSK,-1(P1)
	INPUT DSK,CL
	MOVEI T1,177
ALP1:	MOVEI T2,4
ALP2:	LDB AC,PNTTAB(T2)
	CAIN AC,12
	SOJL T3,APTYP
ALP3:	SOJGE T2,ALP2
	SOJGE T1,ALP1
APTYP:	SKIPGE T2
	MOVEI T2,4
	JUMPL T1,[	CAILE P1,2
			SOJA P1,APLOP
			MOVEI T2,4
			JRST APTYP0]
APTYP0:	MOVEI M,[BYTE (7)16,63,0]
	PUSHJ P,MESOUT
	PUSHJ P,FILL4
	MOVEI C,40
	TTCALL 1,C
	MOVEI M,[ASCIZ/The last lines entered were:/]
	PUSHJ P,MESOUT
	MOVEI C,HOME
	PUSHJ P,TYPEC
	MOVE T3,PNTTAB(T2)
	MOVE SAVTTY
	TLNN (1B13)
	SETOM CAPSIM
	SETZM HORCNT
	SETZM VERCNT
APTYP1:	ILDB C,T3
	JUMPE C,APTYP2
	PUSHJ P,UPTYP
	JRST APTYP1

APTYP2:	IN DSK,CL
	SKIPA T3,[POINT 7,BUFF]
	POPJ P,
	JRST APTYP1

PNTTAB:	POINT 7,BUFF(T1),6
	POINT 7,BUFF(T1),13
	POINT 7,BUFF(T1),20
	POINT 7,BUFF(T1),27
	POINT 7,BUFF(T1),34

OVERWRITE:	MOVEI AC,1000
	MOVEI P1,0
OVLOOP:	MOVEI T1,3
	MOVE T2,[POINT 3,P1,26]
	MOVE T3,[POINT 6,NAME1+1]
OVLP1:	ILDB C,T2
	ADDI C,20
	IDPB C,T3
	SOJG T1,OVLP1
	MOVE T1,NAME
	MOVEM T1,NAME1
	HLLZS NAME1+1
	SETZM NAME1+2
	SETZM NAME1+3
	LOOKUP DSK,NAME
	ERRMES(<LOOKUP FAILURE ON FILE>)
	RENAME DSK,NAME1
	JRST RFAIL
	MOVEI M,[ASCIZ/Old file renamed to /]
	PUSHJ P,MESOUT
	MOVE T1,[POINT 6,NAME1]
RLOOP:	ILDB C,T1
	JUMPE C,REXT
	ADDI C,40
	PUSHJ P,TYPEC
	TLNE T1,770000
	JRST RLOOP
REXT:	MOVEI C,"."
	PUSHJ P,TYPEC
	MOVE T1,[POINT 6,NAME1+1]
	HLLZS NAME1+1
RELP:	ILDB C,T1
	JUMPE C,RDONE
	ADDI C,40
	PUSHJ P,TYPEC
	JRST RELP
RDONE:	MOVEI M,[ASCIZ/
/]
	PUSHJ P,MESOUT
	HLLZS NAME+1
	SETZM NAME+2
	SETZM NAME+3
	SETZ P1,
	JRST OPNFL1


RFAIL:	AOS P1
	SOJG AC,OVLOOP
	ERRMES(<Cannot rename old file>)

INTBLK:	XWD 4,INTLOC
	EXP 2
	0
	0

INTLOC:	PUSH P,1
	AOS 1,DONFLG
	CAIL 1,FRUST
	ERRMES(<Job aborted without proper closing>)
	HRRZ 1,INTBLK+2
	CAIN 1,GETCH
	JRST DONE
	POP P,1
	PUSH P,INTBLK+2
	SETZM INTBLK+2
	POPJ P,

DONE:	SETZM INTBLK+2
	SETZM CAPSIM
	MOVEI TTY
	RESDV.
	JFCL
	MOVEI C,EOS
	PUSHJ P,TYPEC
	MOVEI M,[ASCIZ/
Closing file.../]
	PUSHJ P,MESOUT
	SKIPN PRFFLG
	SKIPE STOCNT
	PUSHJ P,COPY
	MOVE P1,BLKPNT
	USETO DSK,(P1)
	OUTPUT DSK,CL
	CLOSE DSK,
	MOVE SAVTTY
	SETLCH
	MOVEI 2010
	MOVE 1,IOINDX
	MOVEI 2,0
	MOVSI 3,3
	TRMOP. 3,
	JFCL
	SETZM .JBINT
	MOVEI M,[ASCIZ/
Done!/]
	PUSHJ P,MESOUT
	EXIT 1,
	JRST VTED

COPY:	TTCALL 11,
	SETOM FASTF
COPYA:	PUSHJ P,GETBYT
	POPJ P,
	PUSHJ P,PUTCHR
	JRST COPYA

GTBAUD:	PJOB
	TRMNO.
	JFCL
	MOVEM SOP+1
	MOVEI P1,3
	HRLOI P2,377777
GTWAIT:	MOVE [XWD 2,SOP]
	TRMOP.
	SKIPA
	JRST GTWAIT
	MSTIME T2,
	TTCALL 3,[BYTE (7)177,177,177,177,177,0]
GTLOOP:	MOVE [XWD 2,SOP]
	TRMOP.
	SKIPA
	JRST GTLOOP
	MSTIME T1,
	SUB T1,T2
	CAMGE T1,P2
	MOVE P2,T1
	SOJG P1,GTWAIT
	SETZ T1,
	CAIG P2,5*^D33-^D17
	MOVEI T1,FILL1
	CAIG P2,5*^D16-^D17
	MOVEI T1,FILL2
	CAIG P2,5*^D8-^D17
	MOVEI T1,FILL4
	MOVEM T1,FILFLG
	MOVEI 0,1017
	MOVE 1,IOINDX
	MOVSI 3,2
	TRMOP. 3,
	POPJ P,
	MOVEI 1,FILL4
	CAIN 3,0
	POPJ P,
	CAIN 3,1
	MOVEI 1,FILL1
	CAIN 3,2
	MOVEI 1,FILL2
	CAMGE 1,FILFLG
	MOVEM 1,FILFLG
	POPJ P,

FILL4:	PUSHJ P,FILL2
FILL2:	PUSHJ P,FILL1
FILL1:	MOVEI TEMP,0
	TTCALL 15,TEMP
	POPJ P,

TIBUF:	BLOCK 3

SOP:	2
	0
SIPBLK:	1
IOINDX:	0
FRMBLK:	2006
	0
	1

NAME1:	BLOCK 4

NAME:	SIXBIT/FILE/
	0
	0
	0
	0

BLKPNT:	0
OUTPNT:	0
OUTCNT:	0

CL:	IOWD 200,BUFF
	0

PDLEN=20
PDLST:	BLOCK PDLEN

SBUFL=^D20
SBUF:	BLOCK SBUFL

SBUF1:	BLOCK SBUFL

BUFF:	BLOCK 200
	0

STOBUF:	0

	END VTED