BRS_Reference_Dec69 BRS Reference Dec69

BRS

MANUAL

AS

OF

12-2-

69

*CONTENTS.

DATE I

69/11/11

BRS

REFERENCE

MANUAL

NOVEMBER

11

#

1969

WI

TTEN

BY

ANN

HARDY

NORMAN

HARDY

MARK KAHRS

DAVID GARDNER

VERBE

VAN

VLEAR

TABLE

OF

CONTENTS

SECTION

SUBJECT

0.0

SYSPOP INDEX

0.1

INDEX

BY

TYPE

0.2

SEQUENTIAL

INDEX

1.0

SEQUENTIAL

BRS

INDEX

2.0

BRS AND SYSPOP

INDEX

BY TYPE

3.0

USER

BRS'

SIN

NtI4ERI

CAL SEQUENC E

4.0

SYSPOP'S

5.0

TYMSHARE

BRS'S

IN

NtMERICAL

SEQUENCE

6.0

APPENDIX A GLOSSARY

7.0

APPENDIX

B

RANDOM

FI

LE

StMMARY

SECTION

0.0

SYSPOP

INDEX

SECTION

0.1

INDEX

OF

SYSPOPS

BY

TYPE

nLE

INPUT/OUTPUT

CITCI34)

CIoe

161)

VIce

160)

Sloe

176)

CHARACTER I NPUT AND TEST

CHARACTERINPUT/OUTPUT

WORD

INPUT/OUTPUT

BLOCK

INPUT/OUTPUT

HAHDOM

FILE

OPERATORS

RSP(125)

READ

SIZE

PARAMETERS

SSP(126)

SET

SIZE

PARAMETERS

RepeI3!)

READ

CURSOR

POSITION

SCP(132)

SET

CURSOR

POSITION

PCECI33)

POSITION

CURSOR

AND

ERASE

TELETYPE

INPUT/OUTPUT

Tel

(1

74)

Tcoe

175)

TELETYPE

CHARACTER I

RPUT

TELETYPE

CHARACTER

OUTPUT

Q{ARACTER

5TRI

NG

MAN

I

PULATI

ON

LDPC

166)

STPC

167)

I

SCC

140)

51

C(

141

)

WCD(135)

GCDe

137)

LOAD

STRING

POINTER

STORE

STRING

POINTER

INTERNAL

TO

STRING

CONVERSION

STRING

TO

INTERNAL

CONVERSION

WRI

TE CHARACTER

AND

DECREMENT

GET

CHARACTER

AND

DECREMENT

-~-

weI

e

157)

GCI

( 1 65)

SKSG(

162)

SKSEC

163)

WCHe

164)

WRI

TE CHARACTER

AND

I NCRDIERT

GET

CHARACTER

AND

I

NCHEMENT

SKIP

IF

STRING

GREATER

SKIP

IF

STRING

EQUAL

WI

TE CHARACTER

TO

KEMORY

BY

TABLE

FLOATING

POINT

OPERATIONS

FAD<

156)

FSB(15S)

FMP(

151&)

FDV(153)

MISCELLAilEOUS

SBRM(170)

SECTION

0.2

125

RSP

126

SSP

131

Rep

132

5CP

133

PCE

134

CIT

135

weD

137

GeD

11&0

1St

141

51 C

153

FDV

151&

FMP

155

FSB

156

FAD

157

weI

160

WIO

161

CIC

162

SKSG

163

SKSE

164

WCN

165

Gel

166

LDP

167

STP

170

SBRM

173

BRS

174

Tel

175

Teo

176

BIO

SECTION

1.0

PLOATI

HG

ADD

FLOATING

SUBTRACT

FLOATINa

MULTIPLY

FLOATING

DIVIDE

SYSTEM

BRR

FOR

INDIRECT

LINKAGE

SEQUENTIAL

INDEX

OF

SYSTEM OPERATORS -SYSPOPS

READ

FILE

SIZE

PARAMETERS

SET

FILE

SIZE

PARAMETERS

READ

CURSOR

POSITION

SET

CURSOR

POSITION

CURSOR

AND

ERASE

CHARACTER I NPUT

AND

TEST

GET

CHARACTER

AND

DECREMENT

INTEIUYAL

TO

STRING

CONVERSION

STRING

TO

INTERNAL

CO.VERSION

FLOATING POINT DIVIDE

FLOATING

POINT

MULTIPLY

FLOATING

POINT

SUBTRACT

FLOATING

POINT

ADD

WRITE CHARACTER

AND

INCRDJENT

WORD

INPUT/OUTPUT

CHARACTER I RPUT /OUTPUT

SKIP

IF

STRING

GREATER

SKIP

IF

STRING

EQUAL

WRI

TE CHARACTER

TO

MEMORY

BY

TABLE

GET

CHARACTER

AND

I MCRDlENT

LOAD

STRING

POINTER

STORE

STRING

POINTER

SYSTEM

BRM

FOR

INDIRECT

LINKAGE

BRANCH

TO

SYSTEM

TELETYPE

CHARACTER

INPUT

TELETYPE CHARACTEE OUTPUT

BLOCK

INPUT.lOUTPUT

SEQUENTIAL BRS INDEX

NOTEt

BRS'S

MARKED

WITH

AN

ASTERISK

ARE

!XECUTI~E

BRS'S.

ALL

OTHERS

ARE

MONITOR

BRS·S.

BRS'S IN

SECTION

5

ARE

RESTRICTED

TO

SYSTEM

OH

SUBSYSTDJ

USE.

-3-

BRS. SECT.

1 5

2 5

3 3

1&

3

5 3

*6

3

1 5

8 5

9 3

10

3

11 3

12

3

13

3

14

3

*15

3

*16

3

17

3

*18

3

*19

3

20

3

21

3

22

5

23

5

t;)h

"2

.....

'-#

25

5

26

5

27

5

28

·5

29

3

30

5

31

3

33

3

34

3

35

3

36

3

*31

3

36

3

39

3

40

3

41

5

42

3

43

3

44

3

45

3

46

. 5

47

5

*48

3

49

3

50

3

51

3

*52

3

*53

3

54

5

DESCRIPTION

OPEN A

FILE

CLOSE A FILE

MAKE

PMT

POINTER

INDIRECT

RELEASE

A PAGE OF

MEMORY

REPORT CALLING

FORK

STATUS

SET

FILE

PARAMETERS

READ

TABLE

CLOSE

ALL

Fl

LES

START

FORK

TERMINATE

FORK

CLEAR

t NPUT BUFFER

DECLARE

ECHO

TABLE

OR

SET

8-LEVEL

TEST

I NPUT

BUFFER

FOR

DtPTY

DI SMI

5S

UNTI L OUTPUT BUFFER EMPTY

READ

INPUT

FI

LE

NAME

OPEN

INPUT

FILE

CLOSE

ALL

FILES

READ

OUTPUT FILE

NAME

OPEN

OUTPUT

FILE

CLOSE

A FILE

FLOATING

POINT

NEGATE

PREVENT

TERMINATION

ALLOW

TERMINATION

GRAB

BX

T MAP

81

T

SKIP

IF

ESCAPE

WAITING

STABT

STATISTICS

STOP

STATISTICS

CLEAR

OUTPUT

BUFFER

GIVE

BIT

TO

BIT

MAP

WAIT

FOR

SPECIFIED

FORK

TO

CAUSE

A

PANIC

READ

STRING

OUTPUT

MESSAGE

OtTrPUT

STRING

Otn"PUT

NUMBER

IN

SPECI

FlED

RADIX

RENAME A

FI

LE

INPUT

NUMBER

IN

SPECI

FlED

RADIX

READ

CPARW

AND

AUNN

READ

ECHO

TABLE

RETORM

DISC

ADDRESS

OF

CURRENT

DATA

BLOCK

READ

REAL TIME

CLOCK

READ

PSEUDO-RELABELING

SET

PSEUDO-RELABELING

DISMISS

ON

QUANTUM

OVERFLOW

TURN

ESCAPE

OFF

TURN ESCAPE

ON

LOOK UP

FILE

NAME

READ

INTERRUPTS

ARMED

FLOATING

TO

FIXED

CONVERSION

FI

XED

TO

FLOATI N G CONVERSION

FORMATTED

FLOATING

POI.T

IIIPUT

FORMATTED

FLOATIN8

POINT

OUTPUT

GRAB

BI

T

FROM

MAP AJlD RETURN DI SC ADDRESS

55

5

56

5

58

5

*60

3

61

5

*62

3

*63

3

*64

3

*65

3

66

5

*67

3

*68

. 3

*69

3

70

3

71 3

12

5

13

3

71&

3

75

3

76

3

18 3

80

3

81

3

85

3

86

3

88

3

ftft

~

0'7

.;;J

90

3

*91

3

93

5

*95

5

*96

3

97

5

98

5

99

5

100

5

101

5

102

3

103

3

104

3

105

3

106

3

107

3

108

3

109

5

110

3

111

5

112

5

115

5

116

3

117

3

120

5

121

3

123

5

124

5

125

5

DISMISS

IF

JOB

IS

USING

DISC

RECOVER

PMT

BYTE

COpy

MEMORY

FROM

940

TO

940

LOOK

UP

FILE

NAME

AND

INSERT I F NECESSARY

CHANGE

TELETYPE

WORKIN6

SET

OPEN VI

LE

FOR I

RPUT

OPEN

FILE

FOR

OUTPUT

OPEN

FILE

FOR

INPUT

WITH

STRING

POINTERS

OPEN

FILE

FOR

OUTPUT

VIm

STRING

POINTERS

DELETE

DISK FILE

READ

USER

TS

PAGE

READS

FILE

MANE

FROM

FILE

DIRECTORY

DELETE

A FILE

COUNT FREE USER PAGES

SKI

P

IF

SY

STD!

STATUS

SET

EX

EC

Dl

SMt SS

READ

AND

RESET

ERCODE

SET

1/2

DUPLEX MODE

SET FULL

DUPLEX

MODE

SKIP

ON

1/2

DUPLEX

MODE

ARMI'DI

SARM SOFTWARE

INTERRUPTS

MAKE

PAGE

READ

ONLY

DISMISS

FOR

SPECIFIED

AMOUNT

OF

TIME

SET

8-LEVEL

OUTPUT

CLEAR

8-LEVEL

OUTPUT

READ

EXECUTION

TIME

DECLARE

A

FORK

FOR

TERMINATION

ON

"ESCAPE"

READ

DATE

AND

TIME

TO

STRING

RESET

RESOURCE

METERI

N G

ACQUIRE

AND

RELEASE

OVERFLOW

QiOUPS

REPORT

FILE

DIRECTORY

DATA

RESET

SUBSYSTEM

COUNTER

INCREMENT

SUBSY STEM COUNTER

READ SUBSYSTEM COUNTER

ASSIGN

DEVICE

UNASSI(ft

DEVICE

READ

TAPE

WRITE TAPE

WHO

HAS

DEVICE

CONTROLS

FOR

TAPE

PRINT

SET TAPE

PARI

TY

TEST

TAPE

DENSI

TY

DISMISS

TEST

TAPE

READY

TERMINATE

CLASS

3

BRS

FORK

TURN

OFF

TELETYPE

STATION

TERM

I NATE

CLASS

3

BRS

FORK

WI

TH

RUSOUT

READ

PROGRAM

RELABELING

SET

PROGRAM

RELABELING

ASSI

Qi

PMT ENTRY

RELEASE

PAGE

WRITE

DISC

WITHOUT

DISMISS

READ

DISK

WRITE

DISK

126

5

TEST

FOR CARRI ER

PRESENCE

127

5

LOOK

AT

MDiORY

128

5

SET

DISK

BIT

MAP

129

5

TURN

eTE

CHANNEL

ON

OR

OFF

130

5

TEST

BREAKPOINT

SWITCH

131

5 CRASH

SYSTEM

134

3

SET

TO

IGNORE

LINE

FEED

OR

CARRIAGE RETURN

135

3

CAUSE

PROGRAM INTERRtFT

AFTER

SPECIFIED

PERIOD

OF

TIME

136

5 SET EXEC

SWITCHES

*141

5

GET

EXEC SUBROUTINES

144

5

GET

A

BUFFER

145

5

RETURN

A

BUFFER

147

3 CLOSE ALL EXCEPT

COMMANDS

FROM

*151

3 CHANGE A COMMANDS FROM FILE

152

5 I

GNORE

OFF

INTERRUPTS

SECTION

2.0

BRS

AND

SYSPOP

INDD

'B'f TYPE

FILE

INPUT/OUTPUT

OPERATIONS

OPEN

FILES

62

OPEN

FILE

FOR

INPUT

63

OPEN

FILE

FOR

OUTPUT

64

OPEN FI

LE

FOR I

RPUT

WI

TH

5THI

N G

POI

HTERS

65

OPEN

FILE

FOR OUTPUT WITH

STRING

POINTERS

!

51

CHIt.NGE

A

"CO!&.MA!!DS

FROM"

FI

LE

CLOSE

FILES

20

CLOSE

A FILE

11

CLOSE

ALL

FILES

147

CLOSE

ALL

!XCEPT

COMMANDS

FROM

FILE

INPUT/OUTPUT OPERATIONS

CIC

(161)

WIO

(160)

BIO

(116)

CIT (131&)

CHARACTER I RPUT I'OUTPUT

WORK

INPUT/OUTPUT

BLOCK

INPUT/OUTPUT

CHARACTER

INPUT

AND

TEST

FILE

NAME

MANIPULATION

RENAME A

FILE

37

68

48

READ

FILE

NAME

FROM

FILE

DIRECTORY

LOOK

UP

FILE

NAME

FORK MANAGEMENT

5

9

10

90

READ

CALLING

FORK

STATUS

START

FORK

TERMINATE

FORK

DECLARE

FORK

FOR

TERMINATION

ON

"ESCAPE"

DEVI

CE

INPUT/OUTPUT

-~-

102

READ

TAPE

103

WRI

TE

TAPE

104

WHO

HAS DEVI

CE

105

CONTROLS FOR

TAPE

106 PRINT

107

SET

TAPE

PARITY

108

TEST

TAPE

DENSITY

110

TEST

TAPE

READY

RANDOM

FILE

OPERATIONS

RSP

(125)

SSP

(126)

Rep

(131)

SCP

(132)

PCE

(133)

READ

FILE

SIZE

PARAMETERS

SET

FILE

SIZE

PARAMETERS

READ

CURSOR

POSITION

SET

CURSOR

POSITION

CURSOR

AND

ERASE

MISCELLANEOUS

FILE

OPERATIONS

69

DELETE

A FILE

96

REPORT

FILE

DIRECTORY

DATA

6

SET

FILE

PARAMETERS

TELETYPE

INPUT/OUTPUT

OPERATIONS

TCI

Teo

13

11

14

29

12

40

85

86

134

74

75

76

24

MEMORY

OPERATIONS

3

4

121

43

44

1 t 6

117

80

70

TELETYPE

CHARACTER

INPUT

TELETYPE

CHARACTER OUTPUT

TEST

INPUT

BUFFER

FOR EMP1Y

CLEAR

INPUT

BUFFER

DI SMI

55

UNT!

L

OUTPUT

BUFFER

EMPTY

CLEAR OUTPUT

BUFFER

DECLARE ECHO

TABLE

OR

SET

8-LEVEL

INPUT

READ

ECHO

TABLE

SET

8-LEVEL

OUTPUT

CLEAR

8-LEVEL

OUTPUT

SET

LINE

FEED

OR

CARRIAGE RETURN I

(fiORE

SET

1/2

DUPLEX

MODE

SET

FULL

DUPLEX

MODE

SKIP

ON

1/2

DUPLEX

MODE

CHANGE

TERMI

HAL

CHARACTERI STI

CS

MAKE

PMT

POINTER

INDIRECT

RELEASE

A

PAGE

OF

MEMORY

RELEASE

A PAGE OF

MEMORY

READ

PSEUDO-RELABELING

SET

PSEUDO-RELABELING

READ

PROGRAM

RELABELING

SET

PROGRAM

RELABELING

MAKE

PAGE

READ

ONLY

COUNT

FREE

USER

PAGES

STRING

PROCESSING

OPERATIONS

STHI

NG

INPUT

.lOUTPUT

33

34

35

READ

STRING

OUTPUT MESSAGE

OUTPUT

STRING

MANIPULATION

STP

LDP

SKSE

SKSG

STORE

STRING

POINTER

LOAD

STRING

POINTER

SKIP

IF

STRING

EQUAL

SKIP

I F

STRING

GREATER

CHARACTER

MANIPULATION

Gel

weI

GeD

WCD

NUMBER

OPERATION

GET

CHARACTER

FROM

BEGINNING

OF

STRING

AND

INCRDmNT

BEGINJlIN6

POINTER.

PUT

CHARACTER

O.

DID

OF

STRING

AND

I

NCRDfENT

END

POINTER.

GET

CHARACTER

FROM

DD

OF

STRING

AND

DECREMENT

END

POIRTER

PUT

CHARACTER

ON

BEGINNING OF

STRING

AND

DECRDtENT

BEGINNING POINTER

NUMBER

!NPllT/OUTPLlT

36

38

52

53

SIC

ISC

OUTPUT

NUMBER TO

SPECI

FI

ED

RADIX

INPUT

NUMBER

TO

SPECI

FI

ED

RADIX

FORMATTED

FLOATING

POttiT

INPUT

FORMATTED

FLOATING

POIMT

OUTPUT

STRING

TO

INTERNAL

CONVERSION

INTERIIAL

TO

STRING

CORVil'SION

ARITHEMTIC

OPERATIONS

50

51

21

FAD

FSB

FMP

FDV

MISCELLANEOUS

42

91

39

SERM

71

67

73

88

89

CON~SION

mOM

FLOATING

POINT

TO

FIXED

POINT

CONVERSION

FROM

FIXED

POI

NT

TO

FLOAT

I

NG

POI

NT

FLOATING POINT NEGATE

FLOATING

POINT

ADDITION

FLOATING

POINT

SUBTRACT

FLOATING

POINT

MULTIPLICATION

FLOATING

POINT

DI

VI

51

ON

READ

REAL

TIME

CLOCK

READ

DATE

AND

TIME

INTO

A

STRING

READ CPAR W AND

AUMN

PROVIDES

INDIRECT

SUBROUTINE

LINKAGE

SKIP

IF

SYSTEM

STATUS

SET

READ USERS

TS

PAGE

READ AND

RESET

!:ReODE

READ

EXECUTION

TIME

READ

RESOURCE

METERING

SYSTEM

AND

SUBSYSTEM

RESTRICTED

BRS'S

ESCAPE

CONTROL

1&6

41

26

FORK MANAGEMENT

72

22

23

109

111

115

INPUT/OUTPUT

1

2

8

41

66

123

1211

125

130

TURN

ESCAPE

OFF

TURN

ESCAPE

OFF

SKIP

IS

ESCAPE

WAITINS

EX

EC

DI

5HI

55

PREVENT

TERMINATION

ALLOW

TERMINATION

DISMISS

TERMINATE CLASS 3 BRS FORK

TERMINATE

CLASS 3 BRS FORK WITH RUBOUT

OPEN

A FILE

CLOSE

A FILE

CLOSE

ALL

FI

LES

RETURN

DI

SC

ADDRESS

OF

CURRENT

DATA

BLOCK

DELETE

DISC FILE

WRITE

DISC

WITHOUT

DISMISS

HUll)

DISC

WRITE

DISC

TEST

A BREAK

POINT

SWITCH

TELETYPE

CONTROL

126

129

112

152

MEMORY

CONTROL

56

120

TEST

FOR

CARRIER

PRESENCE

TURN

CHANNEL

ON

OR

OFF

TURN

OFF

TELETYPE STATION

I GNORE

OFF

INTERRUPTS

RECOVER PMT

BYTE

ASSI

GN

PMT ENTRY

EXEC

COMMAND

BRS'S

127

BIT

MAP

CO&lTROL

25

30

54

128

STATISTICS

28

LOOK

AT

MEMORY

GRAB

BI

T

MAP

BI

T

GIVE

BIT

TO

BIT

MAP

GRAB

BIT

FROM

MAP

AND RETURa

DISC

ADDRESS

SET

BIT

MAP

START

STATISTICS

29

STOP

STATISTICS

FILE

DIRECTORY

CONTROL

95

MISCELLANEOUS

7

131

136

141

144

145

97

98

99

55

61

93

ACQUIRE

AND

RELEASE

OVERFLOW

(EOUPS

READ TABLES

CRASH

SYSTD1

SET

gEC

SWITCHES

GET

EXEC

SUBROUTINES

GET

A BUFFER

RETURN A

BUFFER

RESET

SUBSYSTEM COUNTER

INCRDlDT

SUBSYSTEM

COUNTER

READ

SUBSYSTDI

COUNTER

DISMISS

IF

JOB

USING

DISC

CHANGE

TELETYPE

WORKING SET

RESET

RESOURCE

METERING

•

CONTENTS-

POINTER

BYTE

RELABLE

PAGE

MEMOHY

RELEASE

MDIORY

STATUS

CALLING

FORK

FILE

ATTRIBUTES

FILE

DIRECTORY

ATTRIBUTES

FORK

ESCAPE

ASSI

GNMENT

FIXED

MDIORY

LOCAL

Mo.ORY

PANIC

TABLE

PAGE BOUNDARY

PROGRAMMED

PANIC

TERMINATE

FORK

TELETYPE

INPUT

BUFFER

.BRS

12*

8-LEVEL

INPUT

TELE1YPE

ECHO

TABLE

BREAK

CHARACTERS

ECHO

*BRS

13*

TELETYPE

I NPUT BUFFER

*BRS

14*

TELE1YPE

OUTPUT

BUFFER

*BRS

15*

FILE

DIRECTORY

IIIPUT FILE

*BRS

16*

opm

INPUT

FILE

*BRS

17*

CLOSE

DIRECTORY

COMMAND

FI

LE

OUTPUT

FILE

CLOSE

FILE

*BRS

21*

FLOATING

POINT

TERMINAL

CHARACTERISTICS

MODEL

37

HALF

DUPLEX

OUTPUT

BUFFER

STATUS

WORD

*BRS

33*

"/~-

STRING

TERMINAL

CHARACTER

*SRS

3~.

MESSAGE

*BRS

35.

STRING

.BRS

36*

NUMBER

*BRS

31.

RENAME

FILE

*BRS

38*

NUMBER

*BHS

39.

r!nUTOnt

OA'DA.M1:'-r~

1Llft~

.....

..,....,.

.....

·y"

..............

~

•

..,flU

.BRS

40*

ECHO

TABLE

TELETYPE

*BRS

42*

TIME

*BRS

43*

RELABELING

*BRS

44*

RELABELING

*BRS

45*

DI

SMI

SS

QUANTUM

OVERFLOW

*BRS

48.

FILE

DIRECTORY

*BRS

49*

I

NTERRUPT

MASK

INTERRUPT

*BRS

50*

n.OATING POINT

CONVERSION

*BRS

51*

FLOATING

POINT

CONVERSION

*BRS

52*

FORMAT

*BRS

53*

FORMAT

*BRS

60*

DIRECTORY

*c'Oc

.:.~.

""'-&.1

••

""

..,~

.....

FILE

INPUT

OPEN

*BRS 63*

FILE

QUTPUT

OPEN

*:eRS

64*

FILE

INPUT

STRING

POINTERS

OPEN

*BRS

65*

FILE

NAME

STRING

POINTERS

*BRS

67*

TS

PAGE

*BRS 68*

.. ,iI"

FILE

DIRECTORY

FILE

DELETE

FILE

*BRS

70*

FREE PAGE

*BRS

71*

STATUS

*BRS

73*

ERCODE

HALF

DUPLEX

TELETYPE

*ERS

76*

HALF-FULL

DUPLEX

TELETYPE

INTERRUPT

ESCAPE

READ

ONLY

*BRS

81*

TIME

DISMISS

TELETYPE

El

SiT-LEVEL

OUTPUT

*BRS

86*

TELETYPE

8-LEVEL

TELETYPE

*BRS

88*

EXECUTION

TIME

•

BRS

89

•

USER

METERING

*ERS

90*

ESCAPE

.SRS

91*

TIME

DATE

*BRS

96*

FILE

DIRECTORY

FILE

ATTRIBUTES

*BRS

102*

MAG

TAPE

*BRS

103*

MAG

TAPE

*B115

104*

DEVICE

•

BRS

105 •

MAG

TAPE

.BR5

106*

PRINTER

.BRS

107*

PARITY

MAG

TAPE

BCD

.SRS

108*

MAG

TAPE

DENSI1Y

-1'-

*BRS

110*

MAG

TAPE

RELABELING

*BRS

117*

RELABELING

*BRS

121*

PMT

*BRS

134*

TELETYPE

ECHO

*BRS

13S*

TIME

INTERRUPT

FILE

ACCESS

COUNT

*SRS

147*

FILE

CLOSE

*BRS

151*

CHANGE

COMMANDS

FILE

OPEN

FILE

CLOSE

FILE

*SRS

7.

READ

TABLE

-1'-

CLOSE

*BBS

22*

FORK

TERMINATE

*BRS

23.

FORK

TERMINATE

.SRS

25*

BIT ltAP

.BRS

26*

ESCAPE

*BRS

27.

STATISTICS

STAHT

_O'Cc:

OR_

--""""0.1

"""

..........

STATISTICS

STOP

.BRS

30*

BIT

MAP

.BRS

41*

DISC

*BRS

46*

ESCAPE

.BRS

47.

ESCAPE

.BRS

54.

BIT

MAP

*BRS

55.

*BRS

S6*

..

"

....

RECOVER

POINTER

.BRS

58.

91&0

COPY

MDlORY

*BRS

61*

TELETYPE

*BRS

66*

DELETE

DISC

*BRS

72*

DISMISSAL

*BRS

93*

METERING

*BRS

95*

OVERFLOW

*SRS

97.

*BRS

98*

*BRS

99*

*BRS

100*

.BftS 101*

*BRS

109*

*BRS

111*

*BRS

112*

*SRS

115*

*BRS

120*

*BRS

123-

*BRS

124*

*BRS

125.

.SRS

126*

.BRS

121*

*BRS

128*

*BRS

129.

*BRS

130*

*BRS

131.

*BRS

136-

*BRS

141*

*SSS 144*

*BRS

14S

•

SRS

152*

*PMT

INFORMATION.

*APPENDIX

A*

TOGGLE

SWI

TCH

SECTORS

INDEX

BLOCK

NOniING

TRAP

-:lD-

TIME

.APPENDIX

B*

.APPENDIX

C*

*APPEIlDI X

D*

*APPENDIX

E*

SECTION

3.0

USER

BRS'S IN

NUMERICAL

SEQUENCE

DATEI

69/11/11

FUNCTIONs

MAKE

POINTER

INDIRECT

STATUS, USER

INPUT,

A •

PMT

BYTE

NUMBER

OF

PMT

OR

SMT

POINTED

AT

IF

BIT

0 OF A • I

..

MAKE

PAGE READ

ONLY

X • CHAlfNEL

NUMBER

FOR

SECOND BYTE

OUTPUTs

A.

NEW

PMT

BYTE

NO.

DESCRIPTIONs

THIS

BRS TAKES THE CONTERTS OF THE A

REGISTER

AND

STORES

IT

AS

A

POINTER

TO

A

PMT/SMT

BYTE.

THE

BRS

3

DELIVERS

IN

THE

A REGISTER

nlE

PMT

BYTE

TO

BE

RELABD.ED

OVER

USING

THE

BRS

44.

NOTEs

nlE

BRS 3 DOES

NOT

CHANGE

THE

CURRENT

RELABELING.

BI

T 0

OF

A

MUST

BE

SET

I F THE USER I S

TO

POI

lIT

TO

ABY

SUBSYSTEM

PAGES.

OLD

BYTE

I1tJllBERS

NEW

BYTE NUHBERS

SBASle

17

22

23

31

32

33

34

101

102

103

104

105

EDITOR

41

42

110

111

CAL

24

25

26

27

30

--

112

113

114

115

116

CCS

35

36

37

40

43

44

50

11 7 120

121

122

123

51

52

126

127

---

FTC

20

21

--

130

131

---

SYOR

135

136

137

140

141

14.1&

COMMON

45

46

47

132

133 134

---

FOS

53

54

55

--

ISO

151

152

106

107

124

125

142

143

---

ROTEI

DDT

PAGES

ARE

NOT

INDIRECT

SMTS.·THEY

ARE

SMT

NUMBERS

41 AND

42.

THE

TS

PAGE

IS

43.

10S

PAGES

(INDIRECT

BYTES

150

..

151

..

152)

DO

NOT

NEED

SUBSYSTEM STATUS

TO

RELABEL

IN.

REGISTERS

AFFECTEDI

A

..

X

*BRS

II.

DATEs

69/05/13

FUNCTIONi

RELEASE

A PAGE OF

MEMORY

STATUSs USER

INPUTt

A=ANY ADDRESS

IN

THE

PAGE

TO

BE

RELEASED

DEseRI

PTI

ON

I THE PMT ENTRY FOR THE BLOCK I S CLEARED

AND

I N

ANY

OTHER FORK

WHICH

HAS

mIS

PMT

BYTE

IN

ITS

R!i.ABELINCU THE BYTE

IS

CLEARED

TO

O.

HEGISTERS

AFFECTED.

NONE

DATEs

69/05.113

FUNCTIOJJt RETURN STATUS OF CALLIIIG

FORK

STATUSI

US~

OUTPUT:

A-O

FOR

NO

STATUS

A-I

FOR

SUBSYSTEM STATUS

A-3

FOR SYSTEM STATUS

A=7

FOR EXEC STATUS

REGISTERS

AFFECTED.

A

DATE.

69/05/13

FtlVCTIONI SET

(FI

LE ATTRI

BUTES]

IN

[Ji1

LE

DI

RECTORY J

STATUS. USER

INPUT.

A •

FILE

DIRECTORY

POINTER

ADDRESS (FROM BRS

15

OR

48)

X •

0-11=ATTRIBUTES

TO

CHANGE~

lS-23=NEW

ATTRIBUTES

RETURNS.

NO

SKIP

• ERRORS

SKIP

•

NORMAL

DESCRIPTION.

PLACES

IN

THE

FILE

DIBECTORY

FOR

THE

FILE

SPECI

FlED

mE

STATUS SELECTEDJ THE STATUS WILL BE USED TO START THE

FORK

I F

mE

FILE

I S CALLED

WI

TH

THE

GOTO

COMMARD.

THE

ERROR

RETURN I S

TAKEN

IF

nlE

FILE

CANNOT

BE

LOCATED

IN

THE

FILE

DIRECTORY

OR

IF

THE

FILE

IS

NOT

VALID

FOR

PRIVATE

WRITE

ACCESS.

REGISTERS

AFFECTED.

ALL.

SEE

BRS

96

DATE.

69'05/13

STATUS.

USER

INPUT:

A=ADDRESS OF A

·PAIII

C

TABLE"

(SEE

APPENDIX

A~

Q.OSSARY).

BITS

0

THROUGH

7 OF

REGISTER

A

HAVE

THE FOLLO\JING

SIGNIFICANCE'

0-61

VE

C FORK]

EXEC

STATUS I F

CURRENT

FORK

HAS

EXEC

STATUS

I-SET

FORK RELABELING

FROM

PANIC

TABLE.

OTHERWISE

USE CURRENT RELABELING.

2-PROPOGATE

[ESCAPE ASSIGNMENT]

TO

FORK

IF

ISSUING

FORK HAS

IT.

(SEE

BRS

90).

3=MAKE

FORK

C

FIXED

MEMORY

J.

I

TIS

NOT

ALLOWED

MORE

MDIORY THAN I T STARTED

WI

TIl

•

.

4=MAKE

FORK

(LOCAL MEMORYJ.

NEW

MEMORY

WILL BE

ASSI

tilED

TO

I T I NDEPENDENT OF THE CON-

TROLLING

FORK.

S-GIVE

FORK

SUBSYSTEM STATUS I F CURRENT

FORK

HAS

SUBSYSTEM STATUS.

6-

61

VE

FORK

SY

STEM

STATUS I F

CURRENT

FORK

HAS

SYSTDI

STATUS.

7-SUBSYSTEM I

NDEX

I N PAN! C

TABLE.

DESCRI

PTI

ONI

BRS 9 I S USED

TO

CREATE DEPENDENT ENTRI

ES

I N THE PAC

TABLE.

mE

[PANIC

TABLE]

INDICATED

B't

REGISTER

A

MUST

MOT

BE

THE

SAME

FOR

TWO

FORKS OF

THE

SAME

JOB

OR

OVERLAP A PA

GE

BOUNDARY

J

I'

I T

IS

BRS 9 I S

ILLEGAL.

BRS 9 CREATES A

NEW

FORK

AS A

FORK

OF THE

FORK

CREATING

IT,

WHICH

IS

CALLED THE CONTROLLING FORK. THE FORK

IS

LOWER

IN

THE HIERARCHY

OF

FORKS

THAN

THE CONTROLLING FORK. THE CONTROLLING

FORK

MAY

ITSELF

BE A

FORK

OF

SOME

STILL

HI

tHER

FORK.

WHEN

BRS 9

IS

EXECUTED~

THE CONTROLLING FORK

IS

DISMISSED

UNTIL THE

LOVER

FORK

TERMINATES.

A USER

MAY

NOT HAVE

MORE

THAN

EI9fT

FORKS

IN

HI

S FORK

STRUCTURE.

THI

S I

MeLUDES

THE

EXEC

FO~K

AND ONE FORK

FOR

EACH

EXEC

BRS

THAT

IS

ACTI

VE.

ONLY

ONE

EXEC

BRS

CAN

BE

ACTI

VE

AT A

TIME.

REGISTERS

AFFECTEDI

NONE

DATE.

69/05/13

FUNCTION.

PROGRAMMED

PANIC.

TERMINATES

A

FORK.

STATUS.

USER

DESCRIPTIONI

TERMINATES

A

FORK.

THIS

CONDITIO.

CAN

BE

DISTINGUISHED

FROM

A

PANIC

CAUSED

BY

THE

ESCAPE

KEY

ONLY

BY

mE

FACT

THAT

IN

THE

FORMER

CASE

THE

PROGRAM COUNTER

IN

11IE

PANIC

TABLE

POINTS

TO

A

WOHD

CONTAINIRG

BRS

10.

THIS

ERS

WOULD

NORMALLY

BE

USED

TO

TERMINATE

A

FORK

WHEN

IT

IS

FINISHED.

RESISTERS

AFFECTED.

NONE

*BRS11*

DATE.

69/05/13

FtBCTIONI

CLEAR

nlE

T-ELETYPE I

NPUT

BUFFER

STATUSt

USER

INPUT.

XmTELETYPE

NUMBER

(-1

INDICATES

THE

CONTROLLING

TELETYPE>

DESCRIPTION.

SETS

THE

BUFFER

POINTERS

TO

INDICATE

THEliE ARE

NO

CHARACTER 5 I

If

THE

[TELETYPE]

[I

NPUT

BUFFER].

REGISTERS

AFFECTEDI

NONE

*BRS

12*

DATE.

69/05/13

FUNCTION.

DECLARE ECHO

TABLE

OR

SET

[a-LEVEL

INPUT]

MODE

STATUS.

USER

INPUT.

X=TELETYPE

IWMBER

(-1

INDICATES

THE

CONTROLLING

TELETYPE)

A=OI112.

OR 3 TO

INDICATE

THE

PROPER

ECHO

TABLE.

A

MAY

ALSO CONTAI N

ANY

EI

alT-BI

T CHARACTER I F

THE

51

CJi

BI

TIS

ON.

IN

THI

S

CASE"

EACH

EI

GHT-BI

T CHARACTER

READ

FROM

TIlE

(TELETYPE]

IS

TRANSMITTED

UNCHANGED

TO

mE

USERS

PROGRAM.

NO

ECHOES

ARE

GENERATED

lIHILE

IN

THIS

SPECIAL

EI

GHT-LEVEl.

MODE. mE

EI

fJfT

BI

T CHARACTER I S

THE

CHARACTER

ON

lrHI

eH

EIGHT

LEVEL

MODE

WILL

TERMINATE.

IF

THE

SIGN

BIT

IS

O.

AND

BIT 15

IS

ON.

THERE

WILL

BE

NO

TERMINATING

CHARACTER.

mE

PROGRAM MUST

STOP

tHE

READING

ITSELF.

IF

IT

FAILS

TO

DO

THIS

..

THE

USER

MAY

HANG

UP

HI

S

PHONE.

NEI

THER

THE

ESCAPE

NOR

HI

(II

SPEED

ESCAPE

WI

LL

TERMINATE

mE

PROGRAM.

OTHERWISE"

THIS

IS

LIKE

REGULAR

El

aiT

LEVEL

MODE.

DESCRIPTIONI

BRS

12

SETS

mE

[ECHO

TABLE]

FOR

mE

TELETYPE

INDICATED

BY

REGISTER

X.

ECHO

TABLES

ARE

AS

FOLLOWSI

OmECHO

EACH

CHARACTER

JUST

AS

I

TWAS

BECEI

VED AND BREAK

ON

ALL

CHARACTERS.

l-SAME

ECHO

AS

0

BUT

ALL

CHARACTERS

PXCEPT

LETTERSI

DI

GI

TS

,",D

SPACES

ARE

BREAK

CHARACTERS.

2=SAME

ECHO

AS

0 ..

BUT

THE

ONLY

[BREAK

CHARACTERS]

ARE

CONTROL

CHARACTERS

(INCLUDING

CARRIAGE

RETURN

AND

LINE

FEED.)

NOTE:

THE

gEC

SETS

nil

S FOR

THE

USER.

3=NO

[ECHO]

FOR

ANY

CHARACTER

AND

BREAK

ON

ALL

CHARACTERS.

REGISTERS

AFFECTEDI

NONE

DATEs

69/05/13

Ji'1.JNCTION

TEST

I

NPUT

BUFFER

FOR

EMPTY.

STATUS,

USER

INPUTs

X-CTELETYPEl

NUMBER

(-1

INDICATES

THE

CONTROLLING

TELETYPE)

RETURNSs

NO

SKIP=CHARACTERS

IN

THE

INPUT

BUFFER

SKIP=NO

CHARACTERS

IN

THE

INPUT

BUFFER

DESCRIPTIONs

THIS

BRS

TESTS

FOR

THE

PRESENCE

OF

INPUT

CHARACTERS

IN

THE

BUFFER.

IF

THE

BUFFER

IS

EMPTY.

THERE

IS

A

SKIP

RETURN.

IF

nlERE

ARE

ANY

CHARACTERS

IN

THE

[INPUT

BUFFER

l.

CONTROL

IS

TRANSFERED

TO

mE

"NORMAL"

RETURN.

REGISTERS

AFFECTEDI

NONE

-~r

...

MTEI

69/05/13

ruNCT!

ONI DI SMI 5S

UNTI

L THE

TELETYPE

OUTPUT BUFFER I S EMPTY

STATUS.

USER

INPUT:

X=

TELETYPE

NUMBER

(-1

INDICATES

THE

CONTROLLING

TELETYPE)

DESCRIPTIONl

DISMISS

THIS

FORK

UNTIL

THE

[TELETYPE]

[OUTPUT

BUFFER]

INDICATED

IS

EMPTY.

IT

IS

DISMISSED

UNTIL

THE

LAST

INTERRUPT

! 5

RECEI

VED.

REGISTERS

AFFECTED:

NONE

*BRS

15*

DATE.

69/11/11

ATTENTION:

THIS

BRS

IS

OBSOLETE

AND

WILL

SOON

BE

DELETED.

FUNCTION.

READS

INPUT

FILE

NAME

FROM

Ii

COMMAND

FILE

AND

LOOKS

UP

THE

FILE

NAME

IN

THE

USER'S

FILE

DIRECTORY

STATUS.

USER

INPUT:

A-COMMAND

FILE

NUMBER

- 0

FOR

TELETYPE

INPUT

RETURNSt

NO

SKIP

•

FILE

CANNOT

BE

LOCATED

IN

DIRECTORY

SKIP • NORMAL

RETURN

DESCRIPTIONs

THE

ROUTINE I

RlORES

LEADING

SPACES,

LEADING

MULTI-

BLANKS,

AND

LEADING

COMMA

'5,

LINE

FEEDS

AND

CARRIAGE

RETURNS.

THE

EXCEPTION

RETURN I S TAKEN I F

THE

VI

LE

NAME

CANNOT

BE

LOCATED

IN

THE

[FILE

DIRECTORYl.

EXCEPTION

RETURNI

XI EXEC

£RCODE

NORMAL

RETURNs

AI

FILE

DIRECTORY

POINTER

ADDRESS

Sa

DESTROYED

XI

FILE

DIRECTORY

POINTER

ADDRESS

NOTE.

THE

INFORMATION

CONTAINED

IN

THE

RESISTERS

CANNOT

BE

USED

DIRECTLY

BY

THE

USER

SINCE

THE

ADDRESSES

ARE

IN

THE

T.5.

BLOCKJ

'mI

S BRS I S NORMALLY

FOLLOWED

BY

THE

SRS

16.

IF

THE

INPUT

FILE

NAME

STRING

BEGINS

WITH

A

LEFT

PAREN,

OR

WITH

THE

FULL

QUOTE.,

THE

FILE

NAME

WILL

BE

LOCATED

IN

ANOTHER

USER'S

FILE

DIRECTORY

OR

IN

THE

PUBLIC

FILE

DIRECTORY,

RESPECTIVELY.

REGISTERS

AFFECTED.

ALL

*BRS

16*

DATE:

69/05/13

ATTENTION,

THIS

BRS I S

OBSOLETE

AND

WI

LL

SOON

BE

DELETED.

FUNCTIONa

[OPEN] [INPUT

FILE]

STATUS.

USER

INPUT:

A=

FILE

DIRECTORY

POINTER

ADDRESS

RETURNS.

NO

SKIP •

FILE

CANNOT

BE

OPENED

SKIP = NORMAL

RETURN

DESCRIPTIONf

OPENS

AN

INPUT

FILE.

THE

ERS

REQUIRES

IN A

THE

VALUE

RETURNED

IN A

BY

A

BRS

15,

48,

OR

60.

THE

EXCEPTION

RETURN

IS

TAKD

IF

mE

POINTER

IN A

IS

NOT

POINTING

TO

A

PROPER

LOCATION

OR I F

THE

FI

LE

CANNOT

BE

OPENED

FOR

ANY

REASON.

EXCEPTION

RETURNI

ALL

REGISTERS

DESTROYED

NORMAL

RETURNI

AI

FILE NUMBER

81

FILE

TYPE

(0-4)

XI

FILE

SIZE

REGISTERS

AFFECTED.

ALL

--4-

*BRS

17.

DATEa

69.105.113

FUNCTION.

[CLOSE]

ALL

FILES

STATUS,

USER

REGISTERS

AFFECTED.

ALL

DATE.

69.111.111

ATTENTION.

THIS

BRS

IS

OBSOLETE

AND

WILL

SOON

BE

DELETED.

FUNCTION.

READS

FILE

NAME

FROM

A

COMMAND

FILE

AND

LOOKS

UP

THE

FILE

NAME

IN

THE

USER'S

FILE

DIRECTORY.

THE

COMMAND

FILE

MUST

BE

AN

INPUT

nLE.

STATUS,

USER

INPUT,

A.

COMMAND

FILE

NUMBER • 0 FOR

TELETYPE

INPUT.

I F

BI

TIl::

1 I N

THE

A

REGI

STER"

THE

BRS

ASSt.JI1ES A

FI

LE

NAME

I S CORRECT

MID

DOES

NOt

TYPE

"OLD

FI

LE"

OR

"NEW

FILE"

e

RETURNS.

NO

SKIP,

ERROR RETURN

SKIP.

NORMAL

RETURN

DESCRIPTIONt

THIS

BRS

IGNORES

LEADING

SPACES"

LEADING

MULTI-

BLANKS AND

LEADING

COMMA

'5"

LINE

FEEDS

AND

CARRIAGE

RETURNS.

IF

THE

STRING

BEGINS

WITH A

SINGLE

QUOTE

OR

SLASH"

IT

MUST

BE

TERMINATED

BY

THE SAME CHARACTER WHICH MUST THEN

BE

FOLLOWED

BY

A

CONFIRMING

CARRIAGE

RETURN.

THE

iXCEPTION

EXIT

IS

TAKEN

IF

mESE

REQUIREMENTS ARE NOT

MET.

IF

TdE

STRINe

IS

FutiND

IN

-niE

FILE

DIRECTORY"

THE MESSAGE OLD

FILE

IS

TYPED"

OTHERWISE"

1HE

MESSAGE

NEW

FILE

IS

TYPED.

I F THE NEXT CHARACTER

IN

THE

INPUT

STRING

I S A

LINE

FEED"

CARRIAGE

RETURIJ"

OR

PERIOD

..

THE

NORMAL

RETURN WILL

BE

TAKENJ

OTHERWISE"

nlE

gCEPTIOIf

RETURN

IS

TAKEN.

III

mE

CASE

OF A

NEW

FILE"

THE

FILE

NAME

IS

INSERTED

CONDITIONALLY

INTO

nlE

FILE

DIRECTORY.

IF

THE

FILE

IS

READ-ONLY"

THE

EXCEPTION

RETURN

IS

TAKEN.

EXCEPTION

RETURN.

ALL

DESTROYED.

NORMAL

RETURNs

AI

LOCATION

OF

THE

FILE

IN

mE

DIRECTORY

HASH TABLE'.

BI

CONFIRMING

CHARACTER

IN

CASE

OF

A QUOTE

OR

SLASH

FILEJ

OTHERWISE

..

THE

FILE

DIRECTORY.

XI

DESTROYED.

REGISTERS

AFFECTED:

ALL

DATE:

69/05/13

ATTENTION.

THI S

BRS

IS

OESOLETE

AND

WI

LL

SOON

BE

DELETED.

FUNCTION:

OPENS

AN

[OUTPUT

FILE]

STATUS:

USER

CALLING

SEQUENCE'

INPUTI

A

II:

INFORMAnON

SUPPLIED

IN

A

BY

BRS

18"

BRS

48

OR

BRS

60.

(LOCATION

IN

FILE

DIRECTORY.'

B •

INFORMATION

SUPPLIED

IN

X

BY

BRS

16.

X a

FILE

TYPE.

(SEE

APPENDIX

A"

GLOSSARY.)

RETURNS:

NO

SKIPs

ERROR

SKIPs

NORMAL

RETURN

DESCRIPTION:

OPENS

AN

OUTPUT

FILE.

om

THE

NORMAL

RETURN" A •

mE

FI

LE

NUMBER.

mE

EXCEPTION

HETtffiN I S TAKEN I

FI

l'

THE

WORD

IN

A I S NOT A

VALl

D

POINTER.

2)

THE

FILE

CANNOT

BE

OPENED.

(SUCH

AS A

PHYSICAL

DEVICE

THAT

CANNOT

BE

USED FOR

OUTPUT.)

3)

mE

FILE

DIRECTORY

IS

ALREADY

FULL.

IN

THESE

CASES

AN

APPROPRIATE

MESSAGE

IS

TYPED.

REGISTERS

AFFECTED:

EXCEPTION

RETURNI

ALL

DESTROYED.

NORMAL

RETURNI A • n

LE

NUMBER

DATEs

69/05/13

FUNCTION:

[CLOSE]

A

[FILE]

STATUSI

USER

INPUTs

A:It

FILE

NtJtIBER

B AND X ARE DESTROYED.

DESCRIPTION:

THE

"CLOSE

FILE"

SRS

IS

USED TO

INDICATE

TO THE

SYSTEM ALL

PROCESSING

IS

COHPLETED

ON

THIS

FILE.

ALL

REGISTERS

ARE DESTROYED.

REGI

STERS

AFFECTED} ALL

*BRS

21*

DATE:

69/05/13

NAME.

Ji'NA

FUNCTIONI USER

DESCRIPTIONs

mE

DOUBLE

WORD

(FLOATING

POINT]

VALUE

IN

THE

A

REGISTEHS

AFFECTEDI

A, B

DATEI

69/05/13

FUNCTIONs

CHANGE

[TERMINAL

CHARACTERISTICSl

STATUS:

USER

INPUT:

A

III

Tn'TBL

MASK

X

:=

TTY

NtMBER

OR

-1

TTYTBL MASK:

BIt

1

-I

FOR AUTOMATIC

LINE

FEED

FOR

[MODEL

373

•

./

Bl

T 7

III

1

FOR

[HALF

DUPLEX]

ALL OTHER

Bl

T5

MUST

BE

0

REGISTERS

AFFECTEDa

NONE

DATEI

69/05/13

FUNCTIONI

CLEAR

mE

[OUTPUT

BUFFER]

STATUSt

USER

INPUT.

x.

Tn.ETYPE

NUMBER

(-1

INDICATES

THE CONTROLLING

TELETYPE)

REGISTERS

AFFECTEDz

NONE

*BRS

31*

DATE:

69/05/13

ATTENTION:

THIS

BRS

IS

OBSOLETE,

AND

WILL

SOON

BE

DELETED.

FUNCTION:

PUTS

THE

STATUS

WORD

INTO

THE X

REGISTER.

STATUS,

USER

INPUT:

A =

PANIC

TABLE ADDRESS

DESCRI

PTI

ON. PUTS THE STATUS

WORD

FROM

THE PANI C TABLE I liTO THE

X

REGI

STER.

THI

S

COULD

BE

DON!

MORE

EASILY

BY

mE

USER.

REGISTERS

AFFECTEDI X,A

DATE:

69/05/13

FUNCTION:

READ

[STRING]

STATUS:

USER

INPUT'

A

III

ADDRESS OF

STRING

POINTER

B •

TERMI

riAL

CHARACTER

X ::

FILE

NtIIBER

BIT

0

OF

A

ON

D

1HE

STRING

IS

TAKEN AS

NULL

WITH

mE

SECOND

POI.TER

EQUAL

TO

mE

FIRST.

DESCRIPTIONt

THIS

BBS READS CHARACTERS

FROM

THE

FILE

AND

AP-

pgDS

THEM

TO

THE

STBINS

UaJTIL THE TERMINAL

CHARACTER

IS

REACHED. THE

TERM

I

NAL

CHARACTER

15

NOT

APPENDED

TO

THE

5THI.

G.

IT

RETURNS

mE

UPDATED

STRING

POINTERS

IN

THE

A

AND

B

REGISTERS

AND

UPDATES THE

END

STRING

POINTER

IN

MEMORY.

REGISTERS

AFFECTEDI

A, B

DATEs

69/05/13

FONCTIONI

OUTPUT

MESSAGE

STATUS: USER

A =

BEGINNING

WORD

ADDRESS

B

==

CHARACTER COUllT

OR

-1

DESCRIPTIONs THIS

BRS

OUTPUTS N

CONSECUTIVE

CHARACTERS

START-

ING

WITH

THE

FIRST

CHARACTER

OF

THE

SPECIFIED

WORD.

IF

B.-I,

CHARACTERS

ARE

OUTPUT

UNTIL

A "

IS

ENCOUNTmEDJ

mE

CHARACTER S

IS

INTERPRETED

AS

A CARRIAGE RETURN MJD

LINE

FEED.

REGISTERS

AFFECTED'

NONE

*BRS

35*

DATE.

69/05/13

FUNCTIONI

OUTPUT

STRING

STATUS,

USER

I NPUT I X c

FI

LE

NUMBER

A,B

• A STRING

POINTER

PAIR

DESCRIPTION:

OUTPUTS THE

[STRINGJ

INDICATED

BY

THE

STBING

POI.T-

ERS

IN

REGISTERS

A

AND

B

TO

THE

SPECIFIED

FILE.

REGISTERS

AFFECTED:

NONE

*BRS

36*

DATEt

69/05/13

FUNCTION: OUTPUT NUMBER

STATUS: USER

I NPUT I X a

FI

LE

NUMBER

A

I:

NUMBER

TO

BE

OUTPUT

B •

RADIX

DESCRIPTIONl

OUTPUTS A

NUMBER

IN

THE RADIX

R.

THE

NUMBER

WILL

BE

OUTPUT

AS

AN

UNSI

GWED

24

BI

T

INTEGER.

I F

mE

RADIX

I S

LESS

THAN

2..

AN

I NSTRUCTI

ON

TRAP

WI

LL

BE

GI

VEH.

REGISTERS

AFFECTEDI

NONE

DATE:

69/05/13

FUNCTION:

[RENAME]

A

[FILE]

STATUS:

USER

CALLING

SEQUENCE:

LDP

PTRS

(OLD

FILE

NAME)

BRS48

BHU

ERROR

LDP

NPTRS

(NEW

FILE

NAME)

BRS

37

BRU

ERROR2

INPUT: A

..

B •

NEW

STRING

POINTERS

X := OUTPUT OF BRS

48

OUTPUT: I F ERROR RETURN TAKEN.. X =: EXEC £ReODE

DESCRIPTION:

REPLACES

OLD

FILE

NAME

VIm

NEW

FILE

NAME.

NEW

NAME MUST

HAVE

SAME NUMBER

OF

CHARACTERS AS OLD

NAME.

RETURNS:

SKIP =

NORMAL

RETURN

NO

SKIP =

NEW

NAME

INVALID

(SAME

AS

OLD

..

ILLEGAL

CHAR-I

ETC.)

REG!

STERS

AFFECTED:

ALL

*BRS

38*

DATEI

69/05113

FUNCTIONI

READ

NUMBER

STATUS.

USER

INPUT:

X:I:

FILE

NUMBER

(0

FOR

TELETYPE)

B = RADIX

OUTPUT:

A

==

NtMBER

B • TERMINATING CHARACTER

DESCRIPTION:

INPUTS

AN

INTEGER

TO

ANY

RADIX.

THE NtJIIBER

MAY

BE PRECEDED

BY

A

PLUS

OR

MINUS

SI

GlQ.

LEADING

CARRIAGE

RETURNS

AND

BLANKS ARE I GNORED.

ON

EX

I T THE

NUMBER

WI

LL

BE

IN

THE

A

REGISTER.

THE

CONVERSION

IS

TERMINATED

BY

ANY

NON-

NUMERIC CHARACTER

WHICH

WILL

BE

IN

mE

B

REGISTER

ON

EXIT.

THE

NUMBER

IS

COMPUTED

B'f

MULTIPLYING

THE

NtMBER

OBTAINED

AT

EACH

STAGE

BY

THE RADIX

AND

ADDING

THE

NEW

DI

GIT.

REGISTERS

AFFECTED:

A, B

*BRS

39*

DATEs

69/05/13

FUNCTION: READS [ CONTROL PARAMETER

WORD]

AND

AUNN

STATUSt

USER

OUTPUTs

A =

CONTROL

PARAMETER

WORD

B =

AUNN

CONTROL

PARAMETER

WORD:

DDT:

2B5

ACCOUNT

SUPERVI

SORt

2B6

SYSTEMS

4B6

OPERATORs

lS7

PREMIUM

CHARGEI

2B7

PROPRIETARYs

4B7

REGISTERS

AFFECTED:

A,B

DATEI

69/05/13

FUNCTIONa READ

[ECHO

TABLEl

STATUSa

USER

INPUTs

X =

TELETYPE

NUMBER OR

-1

OUTPUT:

A = ECHO

TABLE

NUMBER OR

TERMINATING

CHAFiACTER

AND

51

GN

BIT.

DESCRIPTION:

READS

THE

ECHO

TABLE

NUMBER

(0,1,2,3,)

INTO

THE A

REGISTER.

IF

THE

[TELETYPE]

IS

NOT

IN

EI

G1T-LEVEL

INPUT

MODE, READS THE

ECHO TABLE NUMBER

(0,1,2,3)

INTO

THE

A

REGISTER.

IF

THE

TELE-

TYPE I

SIN

EI

aiT-LEVEL

MODE, THE

SI

~

EI

T

OF

A I S

SET,

THE AD-

DRESS

FIELD

CONTAINS

THE

TERMINAL

CHARACTER.

REGISTERS

AFFECTEDt

A

DATE:

69/10/31

FUNCTION:

READ

REAL

[TIMEl

CLOCK

STATUS:

USER

OUTPUT: A = REAL

B

&;

DMIN

X =

YEAR-1964

DESCRIPTION:

SETS

THE CONTENTS

OF

THE

A

REGISTER

EQUAL TO THE

VALUE

OF

THE REAL

TIME

CLOCK.

TIME

IS

GIVEN AS A

24

BIT

BINARY

NUMBER

REPRESENT!

NG

60THS

OF A SECOND. THE

CLOCK

I S

SET

TO

ZERO

WHEN

THE SYSTEM I S STARTED

AND

I

TIS

INCREMENTED

BY

ONE

AT

EVERY

1/60TH

SECOND. A

BINARY

FORM

OF

THE

START-UP

TIME

IS

Ptrr

IN

B.

THE

FIRST

SIX

BITS

OF

B ARE

nlE

MONTH

NUMBER.

mE

REST OF THE

Bt

TS ARE THE MINUTE

OF

THE MONTH.

FROM

A

AND

B

TIlE

USER

CAN

CALCULATE THE MORTH, DATE

AND

TIME.

REGISTERS

AFFECTED.

A,

B

*BRS

43*

DATEs

69/05/13

FUNCTION:

READ

PSEUDO-RELABELING

STATUS:

USER

OUTPUTr

A,B

=

PSEUDO-RELABELING

REGISTERS.

DESCRIPTIONI

READS

THE

CURRENT

PSEUDO-CRELABELINGl

REGISTERS

INTO

REGISTERS

A

AND

B.

REGISTERS

AFFECTED.

A,

B

*BRS

44*

DATE:

69/05/13

FUNCTIONI

SET

PSEUDO-RELABELING

STATUSI

USER

A & B =

RELABELING

REGISTERS

DESCRI

PTI

ON: THI S

BRS

TAKES

THE

CONTENTS

OF

REG!

STERS

A

AND

B

AND

STORES

THDJ

INTO

THE CURRENT

PSEUDO-CRELABELINGl

REG!

STERS.

IT

ALSO CAUSES THE REAL

RELABELING

TO

BE

RESET

TO

CORRESPOND

TO

THE

NEW

PSEUDO-RELABELING.

THIS

BRS

WILL

RESULT

IN

AN

INSTRUCTION

TRAP FOR

ANY

OF

THE

FOL-

LOWING REASONSI

1)

SWAPPING

IN

THE

NEW

PAGES

WAS

1i0T

COMPLETED.

(USUALLY

BECAUSE

OF

A RAD

FAILURE.'

2)

mE

USER

TRI

ED

TO

RELABEL

OVER A SYSTEM

PAGE.

3)

THE

USER

TRI

ED

TO

RELABEL

OVER A

PAGE

HE

DI

D NOT

HAVE.

(THIS

IS

NOT THE

WAY

TO

OBTAIN

MORE MEMORY.)

REGISTERS

AFFECTEDI

NONE

DATEI

69/05/13

FUNCTIONs

DI

5HI

S5

ON

QUANTtIi

OVERFLOW

STATUS,

USER

DESCRIPTIONI

THIS

BRS

CAUSES

THE

USER TO

BE

DISMISSED

AS

THOUGH

HE

HAD OVERFLOWED

HI

S

QUANTtM.

I T GUARANTEES THAT

THE NEXT

TIME

HE

IS

STARTED

HE

WILL HAVE A COMPLETE SHORT

TIME

QUANTUM.

REGISTERS

AFFECTED:

NONE

DATEI

69/05/13

FtlfCTION

I LOOK UP

INPUT/OUTPUT

[FILE]

NAME

STATUS:

USFli

IN~UTi

A,

B =

STRING

POINTERS

FOR

THE

FILE

NAME.

RETURNS I

NO

SKIP

•

ERROR.

COULDN'T

FIND

FILE

NAME

IN

DIRECTORY.

SKIP

•

NORMAL

RETURN

DESCRIPTIONs

THE

FILE

NAME

IS

LOOKED UP

IN

THE

(FILE

DIRECTORYJ.

IF

IT

IS

NOT THERE

..

nlE

EXCEPTION

RETURN

IS

TAKEN.

EXCEPTION

RETURNs A & B I

NO

CHANGE.

X I

THE

NUMBER

OF

MATCHES.

NORMAL

RETURNt A & B I

LOCATION

IN

FILE

DIRECTORY.

CAN

BE

USED

BY

BRS

16

OR

BRS

19.

X I

DESTROYED.

REGISTER

AFFFCTEDI

ALL

DATEI

69/05/13

FUMeTI

ONt

READ

I NTERRUPTS

ARMED

STATUSa USER

OUTPUTs

A =

INTERRUPT

MASK

DESCRIPTIONI

READS THE

[INTERRUPT

MASK]

INTO

THE A

REGISTER.

BIT

4

CORRESPONDS

TO

[INTERRUPT]

NUMBER

I.

5 TO

NUMBER

2

AND

ETC.

mERE

ARE 11 PROGRAMMABLE

INTERRUPTS.

SEE

ALSO BRS

18.

ASSIGNED

INTERRUPTS.

1 •

(2B6)

• BRS

10

OR

ESCAPE

2 •

(IB6)

c

MEMORY

PANIC

3 •

(4B5)

•

LOVER

FORK

TERMINATES

~

•

(285)

•

I/O

EXCEPTION

CONDITIONS

11 •

(IB3)

• DISK

ERROR

REGISTERS

AFFECTEDI

A

DATE.

69/05/13

FUNCTIONI

[CONVERSION]

FROM

[FLOATING POINT]

TO

FIXED

POINT

STATUS.

USER

DESCRIPTION:

FIXES

THE

DOUBLE

WORD

FLOATING

POINT

VALUE

IN

(AlB).

THE INTEGER

PART

IS

LEFT

IN

A.

THE FRACTIONAL

PART

IS

LEFT

ADJUSTED

IN

B.

REGISTERS

AFFECTED:

A. B

DATE,

69/05/13

FUNCTIONI

[CONVERSION]

FROM

FIXED POINT

TO

[FLOATING POINTl

STATUS:

USER

DESCRIPTION.

THE

INTEGER

IN A

IS

CONVERTED

TO

A

NORMALIZED

FLOATING

POINT

VALUE

IN

A.B.

REGISTERS

AFFECTEDJ

A.B

*BRS

52*

DATE:

69/05/13

FUNCTION:

FORMATTED

INPUT

STATUS:

USEJ1

CALLING

SEQU~CE:

LDX

FORMAT

BRS

52

RHU NF1..0AT

NO

FLOATI

N G

POI

NT

AND

FREE

FORM

INPUT

SHU FREE FLOATING

POINT

AND

PREE

FORM

INPUT

DESCRIPTION:

THIS

ROUTINE

READS CHARACTERS

FROM

A

FILE

SPECI-

FIED

IN

THE

FORMAT

WORD"

FORMAT.

(APPENDIX

E)

FORMAT

ALSO

SPECIFIES

mE

FORMAT

OF

nlE

INPUT.

FREE

FORM

INPUT

FR(IIJ

THE

TELETYPE

RE5UL

T5

WHEN

FORMAT •

o.

A

SKIP

RETURN

IS

GI

VENI

F

AND

ONLY

IF

(1)

THE

INPUT

IS

FREE

FORM"

AND

(2)

THE

INPUT

IS

FLOATING

POINT.

mE

INTERNAL

TRANSLATION

OF

THE

INPUT

FILE

IS

STORED

IN

A"

B.

REGISTERS AFFECTEDI

A"

B.

X

*BRS

53*

DATEs

69/05/13

n.JNCTION:

FORMATTED

OUTPUT

STATUS,

USER

CALLI

NG

SEQUENCE:

LDX

FORMAT

BRS

53

DESCRIPTION:

THE

INTEGER

III

A

OR

THE

DOUBLE

WORD

FLOATING

POINT

VALUE

IN

A~

B

IS

OUTPUT TO

mE

FILE

ACCORDING

TO

ntE

FILE

NUMBER

AND.

FORMAT

SPECIFIED

1M

FORMAT.

(APPENDIX

E)

REGISTERS

AFFECTEDI

NONE

DATEI

69/05/13

ATTENTIONI

THIS

BRS

IS

OBSOLETE

AND

WILL

SOON

BE

DELETED.

FUNCTIONI

LOOKS UP A

FILE

NAME

IN

THE

FILE

DIRECTORY

AliD

IN-

SERTS

IT

I F

IT

I S

NOT

THERE

STATUS:

USER

INPUTI

A# B =

STRING

POINTERS

FOR

THE

FILE

NAME

RETURNS.

NO

SKIP

=

FILE

DIRECTORY

FULL

SKIP •

NORMAL

RETURN

DESCRIPTIONI

THE

FILE

NAME

IS

LOOKED UP

IN

THE

FILE

DIRECTORY.

I

FIT

I S NOT

THERE#

THE

NAME

IS

INSERTED.

THE

EXCEPTION

RETURN

I S TAKEN I

Ii

THE

FI

LE

DI

RECTORY I S

FULL.

EXCEPTION RETURNI A &

B=

1110

CHANGE

x-

-1

NORMAL

RETUBRI A &

Sa

LOCATION

IN FILE

DIRECTORY.

Xc

DESTROYED.

*BRS

62*

DATEs

69/11/11

FUNCTION.

[OPEN] A

[FILE]

FOR

[INPUT]

STATUS

a USER

INPUTt

A =

COMMAND

SKI

P RETURN

OUTPUTI

FI

LE

NUMBER

OR

0

FOR

TELETYPE

A-

FI

LE

NUMBER

B-

FILE

TYPE

X=

FILE

SIZE

NO

SKIP

RETURN

OUTPUTs

A.B#

ARE

DESTROYED

XcEXEC

mCODE

(APPE19DIX

D)

DESCRIPTIONs

READS

THE

INPUT

nLE

NAME

FROM

THE

SPECIFIED

COMMAND

FILE

AND

mEN

OPENS

THE

FILE.

THE

BRS

I

QlORES

LEADING

SPACES#

LEADING

JIIULTIBLANKS.

AND

LEADING

COJIDIA

'5.

LINE

FEEDS

AND

CARl1IAGE

RETURN.

IF

THE

INPUT

FILE

NAME

BEGIlfS

WITH A

LEFT

PAREN#

ASTERISK

OR A CROSSHATCH

THE

FILE

NAME

WILL

BE

LOCATED IN ANOTHER USER'S

DIRECTORY

OR

IN

THE

PUBLIC

FILE

DIRECTORY.

RESPECTIVELY.

ERROR

CODES

IN

X

OUTSIDE

INDICATED

RAHGE

ARE

RESERVED.

REGISTERS

AFFECTEDI

ALL

.BRS 63*

DATE:

69/05/13

FUNCTION'

[OPEN]

A

[FILEJ

FOR

[OUTPUT]

STATUS,

USER

INPUT:

AI

0-7=0

OR

RANDOM

FILE

OPTIONS

8-23-

COMMAND

FILE

NUMBER

OR

0 FOR

TELETYPE

X • FILE

TYPE

IF

BITS

0-7

OF

A-O

(SEE

APPENDIX)

OUTPUT:

A.

FILE

NUMBER

B •

FILE

TYPE

RETURNSi

SKIP.

NORMAL

RETURN

NO

SKIP

•

ERROR.

ERROR

MESSAGE

IS

1YPED

OR

mE

!:ReODE

IS

RETURNED

IN

X.

(APPENDIX

D)

DESCRIPTIONI

THE

BRS

IGNORES

LEADING

SPACES.

LEADING

MULTIBLANKS.

AND

LEADING

CARRIAGE

RETURNS.

IF

A

NAME

BEGINS

WITH

A

SLASH

OR

SINGLE

QUOTE.

IT

MUST

TEBMINATE

WITH

nlE

SAME

CHARACTER.

NAMES

SURROtIJDED

BY

SLASHES

OR

SINGLE

QUOTES

MAY

CONTAIN

ANY

CHARACTER EXCEPT A

LINE

FEED

OR

CARRIAGE RETURN.

OTHER

NAMES

ARE

RESTRI

CTED

TO

ALPHANUMERI

CS

AND

••

ANY

NAME

MAY

BE

FOLLOWED

BY

A

DASH

AND

ANOTHER

STRING.

THE CHARACTERS

FOLLOWING

A DASH

ARE

CONSIDERED

A

COMMENT

AND

ARE

NOT

USED liIEN

LOOKING

UP A

NAME

IN

A

FILE

DIRECTORY.

COMMENTS SURHOUNDED BY

SLASHES

OR

SINGLE

QUOTES

MAY

CONTAIN

ANY

CHARACTER

EXCFPT

LINE

FEED

AND

CARRIAGE

RETURN.

OnfER

COMMENTS ARE

RESTRICTED

TO

ALPHANUMERI

CS.

•

AND

DASH.

REGISTERS

AFFECTED:

ALL

*BRS

64*

DATEI

69/05/13

FUNCTION:

[OPEN] A

[FILE]

FOR

(INPUT]

USING

STRING

POINTERS

STATUS:

USER

INPUTs

A.B-

STRING

POINTERS

FOR

THE

FILE

NAME.

OUTPUT: A=

FILE

NtJatBER

X=

FILE

SIZE

RETURNS I

SKIP.

NORMAL

NO

SKIP

•

ERROR.

FILE

COULD NOT

BE

OPENED.

REGISTERS

AFFECTEDt

ALL

*BRS

65*

DATEs

69/05/13

FUNTIONt

OPEN A

FILE

FOR OUTPUT

USING

STRING

POINTERS.

STATUSaUSER

INPUTI A:

0-1-RANDOM

FILE

OPTIONS

AlB

ADDRESSESI

STRING

POINTERS

TO

[FILE

NAMEl

IF

THE

"OLD

FILE" OR

MNEW

FILE"

MESSAGE

IS

NOT

TO

BE

TYPED.

SET

BITS

0-7

OF

X-O

AND

BITS

10-23

-

FILE

TYPE

IF

THE

"OLD

FILE"

OR

"NEW

FILE"

MESSAGE

IS

TO

BE

TYPED

BY

THE

EXEC.

SET

BITS

0-11

OF

X =

FILE

TYPE

AND

BITS

12-23

OF

X =

COMMAND

FILE

(SEE

APPENDIX)

OUTPUTS

A-

FILE

NUMBER

B=

FILE

TYPE

RETURNS:

SKIP=

NORMAL

RETURN

NO

SKI

P •

ERROR.

ERROR

MESSA

GE

IS

1YPED

OR

THE

EReODE

I S RETURNED I N

X.

DESCRIPTION:

IF

A NAME

BEGINS

WITH A SLASH

OR

SINGLE

QUOTE.

IT

MUST

TERMINATE

WI

TIl

THE

SAME

CHARACTER.

STRINGS

SURROUNDED

BY

SLASHES

OR

SINtLE

QUOTES

ARE

CALLED

PROTECTED

STRINGS.

THEY

MAY

CONTAIN

ANY

CHARACTER

EXCEPT

A

LINE

FEED

OR

CARRIAGE

RETURN.

OTHER

STRINGS

ARE

RESTRICTED

TO ALPHANUMERICS

AND

tit.

/!ANY

NAME

MAY

BE

FOLLOWED

BY

A DASH AND ANOTHER

STRING.

THE

STRING

FOLLOWING THE

DASH

IS

TREATED AS A

COMMENT

AND

IS

NOT

CONSIDERED

WHEN

LOOKING

UP

THE NAME. A

COMMENT

MAY

BE

A PROTECTED

OR

UNPRO-

TECTED

STRING.

DASHES

MAY

BE

USED

IN UNPROTECTED

STRINGS

IN

COMMENTS.

REGI

STERS

AFFECTED:

ALL

*BRS

61*

DATE:

69/11

/21

FUNCTIONt

READ

A USER'S

TS

PAGE

STATUS:

USER

INPUT:

A=KEY

B=BUFFER

LOCATION

X=NUMBER

OF

WOaDS

TO

BE

READ I

NTO

CORE

DESCRIPTION:

TIlE

BRS

WILL

READ

INTO

CORE A

SECTION

OF

THE

USER'S

TS

PAGE.

mE

KEY

WI

LL

ALLOW

THE USER

TO

LOOK

AT

A

SELECTED

PI

ECE

OF

THE

BLOCK.

EXAMPLE:

TO

GET

mE

USER'S

PROJECT

CODE

INTO

LOCATION

1000B

PROJ '

LDA

-59

LDB

=1000B

LDX

-4

BRS

67

LIST

OF KEY'S:

A

REG.

0-5

6

7

8

9

17,18

19,20

21

29

32

37

43

45

46

59-62

63

64

65

66

DESC.

EXEC

BRS

PANIC

TABLE,

WORDS

2-6

COMMANDS

FROM

FILE

NUMBER

COMMANDS

TO

FILE

NUMBER

USER NtJfIBER

STATUS

FLAG

WORD

PROGRAM

RELABELING

WORDS

SUBSYSTEM

RELABELING

WORDS

CLOCK

TICKS

AT

LOGIN

ERROR

CODE

WORD

(USED

BY

'WKY')

FORCED

LOGOUT

SWITCH

LAST EXEC

COMMAND

I.

D.

PROPRI ETARY PROGRAM

SWI

TCH

FI

LE

DX

RECTORY ACCOUNT NLMBER

(SET

BY GFD)

IN!T

SWITCH

PROJECT CODE

FILE

POSITION

IN

DIRECTORY

FILE

INDEX

CURRENT

FI

LE

DI RECTORY

GROUP

NUMBER

ACCOUNT

PARAMETERS

REGISTERS

AFFECTEDI

A

.BRS

68*

DATE:

69/05/13

FUNTIONI

READS

(FILEJ

NAME

FROM

(FILE

DIRECTORY]

INTO

USERS

MEMORY

AND

RETURNS

FILE

PARAMETER FOR

OniER

EXEC

FILE

BRS

·S.

STATUS:

USER

INPUTs

A6B.

NULL

STRING

POINTERS

X • I

NDEX

TO

FI

LE

I.

FI

LE

DI

RECTORY

RETURNS:

SKIP

RETURN

OUTPUT.

A=

INPUT

FOR

BRS

16

AND

19

Sa

ENDING

STRING

POINTER

FI

LE

NAME

I

SIN

USERS

MEMORY.

OR

A-a-O

I F INDEX

15

I NVALI D

NO

SKIP •

INDEX

IS

TOO

LARGE

FOR

FILE

DIRECTORY.

REGISTERS

AFFECTED:

A6B

SAMPLE

PROGRAM:

(TYPES

ALL

FILE

NAMES)

START

LDX-l

LDP

P

BRS

68

BRS

10

END

OF

FILE

DIRECTORY

SKE

-0

SRU

*+3

51

EAX

1,,2

SHU START+l

STX

SV

LDX =1

LDA

P

BRS

35

LDX

SV

TCO

a15SB

13HU

51

NOTE:

THE

BRS

WILL

TRAP

IF

THE

FILE

DIRECTORY

IS

NOT

DECLARED

"LISTABLE"

DATEI

69/11/11

FUNCTION:

DELETE

A FILE

STATUS:

USER

INPUTs

A = FILE

DIRECTORY

POINTER

ADDRESS

(FROM

BRS

15

OR

48)

RETURNS:

NO

SKIP •

ERROR

OR

WRITE

PROTECTED

SKIP = FILE

DELETED

DESCRIPTION:

DELETES

THE

FILE

WHOSE

INDEX

POINTER

IS

IN A.

IF

THE

FILE

IS

WRITE

PROTECTED6

THE

MESSAGE

"WRITE

PROTECTED"

IS

PRINTED

AND

THE

ERROR

RETURN

TAKEN.

ALL

REGI

STERS

ARE

DESTROYED.

REGISTERS

AFFECTED.

ALL

*BRS

70*

DATEI

69/05/13

FUMeTIONI

COtllTS

NtJIIBER

OF

FREE

USER

PAGES

STATUSI

USER

OUTPUT a

A-

NtMBER

OF

FREE

PAGES.

DESCRIPTIO..

RETURNS THE

NUMBER

OF

FREE

USER

PAGES

IN

THE A

REGISTER.

nil

SIS

THE

NUMBER

OF

PAGES

mAT

ARE AVAI

LAaLE

TO

ONE

USER.

RESISTERS AFFECTEDt A

*BRS

71*

DATE:

69/05/13

FUNCTtONs

SKIP

IF

SYSTEM

STATUS

SET

STATUS,

USER

OUTPUT: THE B

REGI

STm

I S

SET

TO

THE

VALUE

OF

THE

USE

CODE

WI

CH

THE USER

HAS

SET

FOR

THE

JOB.

nlESE

VALUES

AREI

VALUE

OF

B

USE

CODE

o USER

2B1 SUBSYSTDI

4B7

SYSTDI

687

EXEC

RETURNS:

NO

SKIP = B

IS

POSITIVE

SKIP

:I

B

IS

MEGATI VE

REGISTERS

AFFECTED.

B

*BRS

73*

DATES 691'

101'29

F"lfiCTIONI

READ

AND

RESET

ERCODE

STATUS,

USER

OUTPUT

I THE A

REGISTER

WILL CONTAIN

THE

LAST

EXEC ERCODE

NlMBER

(APPENDIX

D).

IN

CASE

OF

A MONITOR ERROR" A WILL CONTAIN

THE

MONI

TOR

ADDRESS THAT DI SCOVERED

mE

ERROR.

THE

meODE

WI

LL

BE

RESET

TO

ZERO.

REGISTERS

AFFECTEDI

A

DATE:

69/05/13

FUNCTIONS

PUTS

USERS

[TELETYPE]

INTO

(HALF

DUPLEX]

MODE

STATUS:

USER

REGISTERS

AFFECTED:

NONE

*BRS

15*

DATEI

69/05113

PUiCTIONI

PUTS

USERS

[TELETYPEl

INTO

[FULL

DUPLEX]

MODE

STATUS a USER

REGISTERS

AFFECTED:

NONE

*BRS

76*

DATEI

69/05/13

FUNCTIONI

TEST

[TELETYPE]

FOR

[HALF

DUPLlXl

MODE

•

..

,IF-

STATUSt

USER

RETURNSI )10

SKIP:

FULL DUPLEX

MODE

SKIP,

1/2

DUPLEX

MODE

REGISTERS

A~CTEDI

NOME

DATE:

69/05/13

FUReTIONI

ARM/Dl

SARM

SOFTWARE INTERRUPTS

STATUS: USER

INPUT.

A-

THE COMPLETE

REW

INTERRUPT MASK.

DESCRIPTIONs

THE

NEW

[INTERRUPTl

MASK

IS

SUBSTITUTED FOR THE

OLD

ONE. A USER

MAY

ARM

INTERRUPTS

1-10.

A

SYSTDJ

STATUS

FORK

MAY

ARM

INTERRUPT

11

ALSO. INTERRUPT 1 I S

IN

Bl

T

1.&

OF THE

MASK

WORD.

THE

INTERRUPTS ABE AS FOLLOWSI

1 INTERRUPT

IF

PROGRAM

PANIC

(BBS

10

OR

ESCAPE)

2 INTERRUPT

IF

M!J.!OH'l

PANIC

3 I MTERRUPT I F LOWEll FORK TERM! NATES

4 INTERRUPT

ON

UNUSUAL

I

/0

CORDI

Tl

ON.

A

REGISTER

CONTEHTSI

BITS

MEARING

o 1

5

QUANTUM

OVERFLOW

6

I/O

ERROR

7

END

OF

FILE

18-23

FILE

NUMBER

5

INTERRUPT

ON

TIME

OUT.

I9!S

i

35

6 INTERRUPT

ON

FLOATING

POINT

OVERJi1..0W. (NOT IMPLD%ENTED)

1 INTERRUPT

ON

FLOATING

POINT

UNDERFLOW

(NOT

IMPLDlENTED)

8

INTERRUPT

ON

ZERO DI VI

DE.

(NOT

IMPLDlENTED)

11

I tiTERRUPT I F DI SK ERROR

LOCATION

200

OCTAL PLUS THE INTERRUPT

NUMBER

MUST

BE

SET

TO

POINT

TO

A ROUTINE

TO

PROCESS THE

INTERRUPT.

V1EN

mE

IliTERRUPT

OCCURS

AN

SBRM*

I S EXECUTED

TO

THE

LOCATIOli

POI

NTED

TO.

I

FIT

IS

DESIRED

TO

RETURN

TO

THE

POIHT

IN

THE PROSiAM INTERRUPTED"

mE

USER

MUST

SRR

TO

THE LOCATION

YiERE

THE RETURN

WAS

SAVED.

EXAMPLE:

SET INTEERUPT ROUTINE RETURN

LDA=ESCAPE ESCAPE ZRO ESCRTN BRR ESCBTN

STA

201B

•

• •

• e

REGISTERS

AFFECTEDI

NONE

SEE

BRS

49

*BRS

80*

DATE.

69/05/13

FUNCTION:

JIlAKE

PAGE [READ

ONLY

J

STATUS, USER

INPUTt

A.

AIIT/SMT

NUMBER

I F

BIT

0 OF A

II

1"

MAKE

PAGE READ ONLY.

IF

BIT

0 OF A •

0"

MAKE

PAGE

READ-~ITE.

DESCRIPTION:

SETS

THE READ-WRITE STATUS OF THE

ENTRY

ACCORDING

TO

THE

VALUE

OF

A.

All

SMT

mTRY

CAll

ONLY

BE

CHANGED

BY

A

SYSTDI

STATUS FORK.

mE

FORMER

STATUS

OF

THE ENTRY

IS

RETUBIiED I

Ii

A.

AN

INSTRUCTION

TRAP I S CAUSED I F THE

SPECI

FI

ED ENTRY I S NOT I

It

USE.

REGISTERS

AFFECTED:

A

DATE:

69/05/13

FUNCTION:

DISMISS

FOR

SPECIFIED

AMOUNT

OF

[TIMEJ

STATUS:

USER

INPUT:

A = DISMISSAL

TIME

IN

MILLISECONDS.

DESCRIPTION: THE

FORK

IS

DISMISSED

FOR

THE

NUMBER

OF

MILLISEC-

ONDS

SPECI

FI

ED

IN

A.

THE FORK I S NEVER ACTI VATED SOONER

niAN

THE

DELAY

REQUESTED,

BUT I T WILL GENERALLY NOT

BE

ACTI VATED AT

EXACTLY THE

TIME

REQUESTED.

THE

MINIMUI

DISMISAL

TIME

IS

2

SECONDS.

REGI

STEHS

AFFECTED:

A

*BRS

85*

DATE:

69

/0

5/

13

FUNCTION:

SET

8-LEVEL

TELETYPE

OUTPUT

STATUS.

USER

INPUT:

X =

TELETYPE

NUMBER

OR

-1

FOR CONTROLLING

TELETYPE.

DESCRIPTION:

SETS

[TELETYPE]

TO

[EIGHT-LEVEL

OUTPUT]

MODE. THE

TELETYPE

SPEC I

FI

ED MUST

BE

THE CONTROLLING

TELETYPE.

EI

CJfT-

LEVEL

IS

TRANSMI TTED TO THE

TELE1YPE

IXACTLY AS I

TIS

RECEI

VED

FROM

mE

USER PROGRAM. A

FORK

SENDING

E!

SlT-LEVEL

CODE SHOULD

DO

A

ERS

14

BEFORE

TERMINATING.

REGISTERS

AFFECTED:

NONE

*SRS

86*

DATES

69/05/13

FUNCTIONI

CLEAR

[8-LEVELJ

[TELETYPE]

OUTPUT

MODE

STATUS:

USER

INPUTs

X =

TELETYPE

NUMBER

OR

-1

FOR CONTROLLING

TELETYPE.

DESCRIPTION:

PUTS

THE

[TELETYPE]

OUTPUT BACK

INTO

NORMAL

MODE.

"mE

TELETYPE

SPEC

I FI

ED

MUST

BE

THE

CONTROLLI

NG

TELETYPE.

REGISTERS

AFFECTED:

NONE

*BRS

88*

DATEs

69/11/11

FUNCTION:

READ

EXECUTION

TIME

STATUS.

USER

DESCRIPTIONS

RETURNS

THE

EXECUTION

TIME

FOR THE

JOB

IN

A.

REGISTERS

AFFECTED:

A

DATEI

69/11/23

FUNCTION. READ USER METERING

STATUS:

USER

INPUTs

A-BUFFER

ADDRESS

DESCRIPTION:

mE

BRS

WILL

READ

INTO

CORE

SIX

WORDS

AT THE

LOCATION SPECIFIED

BY

THE A

REGISTER.

iXAMPLE:

TO READ

IN

mE

USER'S

RESOURCE

METERING

METER LDA

=1000B

89

BRS

WORDS

I II

COREt

1ST

WORD:

2ND

WORDs

3RD

WORD,

4TH

WORDI

5TH

WORDI

6n1

WORDa

DISC

USE

SWAP

COUNT

TOTAL

NUMBER

OF CHARACTERS TO

AND

FROM

TERMI

NAL

PAGE

COUNT

CPU

TIME

(CLOCK

TICKS)

CLOCK

TICKS

SINCE

LOGIN

REGISTERS

AFFECTED:

HONE

*BRS

90*

DATEs

69/05/13

FUNCTIONI

DECLARE A FORK FOR

-ESCAPE"

STATUS,

USER

DESCRIPTION:

IN

CASE

THE

USER

TYPES

[ESCAPE]

..

ntI

SIS

THE

HI

CHEST

FORK

TO

TERMINATE.

I F

THIS

FORK HAS ARMED

INTERRUPT

1 .. THAT

INTERRUPT

WILL

BE

TAKEN

INSTEAD

OF

TEBIIINATIR&

THE

FORK.

REGISTERS

AFFECTEDI

NONE

*BRS

91*

DATEI

69/05/13

FUNCTION.

READ

(DATE]

AND

[TIME]

INTO

A

STRING

STATUS

I

USER

INPUT.

A:I

BEGINNING

STRING

POINTER

E = ENDING

STRING

POINTER

DESCRIPTION:

THE

CURBDlT

DATE

AND

TIME

ARE APPENDED TO

THE

STRING

PROVIDED

IN

A AND B

REGISTERS

AND

THE

RESULTING

STRING

POINTERS

ARE RETURNED

IN

THE

A AND B

REGISTERS.

THE

CHARACTERS

APPENDED

TO

THE

STRING

HAVE

THE

FORM.

MM/DD

HHIMM

MM

= MONTH

DD

=

DAY

HH

D HOURS COUNTED

FROM

0 TO

24

MM

l1li

MINUTES

REGISTERS AFFECTED: B

*BRS

96*

DATE:

69/10/30

FUNCTIONs

REPORTS

[FILE

DIRECTORY]

DATA AND

[FILE

ATTRIBUTES]

STATUS,

USER

INPUT.

A =

FILE

DIRECTORY

POINTER

ADDRESS

(FROM

BRS

15

OR

48)

B = BUFFER ADDRESS

X =

WORD

COUNT

OUTPUT:

PLACES

THE

FOLLOWING

IN

THE

BUFFERI

WORD

1 t GROUP

USER

NUMBER

IN

BI

TS

0-11

GROUP

NUMBER

IN

BITS

12-23

WORDS

2-5:

FILE

DIRECTORY

DATA

WORDS

6-NI

FILE

NAME

WI

m

51

GN

BIT

ON

IN

LAST

WORD

OF NAME.

FILE

DIRECTORY DATA WORDS:

WORD

2:

OM

AAA AAA

MY

YYY

ED:

EDD

DDD

WORD

31 BCO

RHH

HHH

FFF

FFF FFF FFF

WORD

4:

GGG

TTT

000

OOZ

XWV

USR

QHM

LKJ

WORD

51

PPP PPP

ppp

A=

ACCESS

COUNT

B=

CHANGED

FILE

C=

EXTRA

CHANGED

FILE

D=

CREATION

DATE,

DAY-I

E=

CREATION

DATE,

MONTH-l

F~

SIZE

WHERE

lc256

WORDS

G=

GOOD

DISC FILE

IF

010,

BAD

IF

100,

INIT

FILE

DUMMY

000

H=

MAPPING CONTROL

J=

INIT.

FLAG

1

K=

EXEC

STATUS

2

L-

SYSTEM

STATUS

4

M=

SUBSYSTEM

STATUS

lOB

N-

PROPRIETARY

20B

p=

INDEX BLOCK

POINTER

Q=

ACCOUNT

PUBLIC 40B

R:

APPEND

ONLY

IB2

S-

NOT

PRIVATE

WRITE

282

T=

FILE

TYPE

(1

TO

4)

U=

NOT

PRIVATE

READ

qB2

V=

RESERVED

IB3

W=

PUBLIC

WRITE

2B3

X=

PUBLIC

REMOTE

4B3

y.

CREATION

DATE,

YEAR-1964

Z=

PREMIUM CHARGE

184

SEE

BRS

6

*BRS

102*

DATE'

69

/0

5/

31

FUNCTION:

READ [MAG

TAPE]

STATUS,

USER

INPUT:

A=

CORE

ADDRESS,

B-

WORD

COUNT

X=

NUMBER

OF

RECORDS (

64)

OUTPUTs

ONE

WORD

AT

BEGINNING

OF

EACH

RECORD.

THE ADDRESS

OF

THIS

WORD

CONTAINS

THE

WORD

COUNT

OF

THE

RECORD~

AND

THE

OP

CODE

FIELD

HAS

ONE

OF

THE

FLAGS

LI

STED

BELOW.

DESCRIPTION:

ALL

THE DATA READ

FROM

1HE

TAPE

AS

WELL

AS

THE

STATUS

WORD

FOR

EACH

RECORD MUST

FIT

IN

ONE

PAGE.

SEE

APPENDIX

C FOR

MEARIIiSS

OF

THE VALUES

OF

THE

OP-CODES.

*BRS

103*

DATEI

69/05/31

FUNeTI

ON:WRI

TE

[MAG

TAPE]

STATUS a USER

INPUTs

Aa

CORE ADDRESS

OF

DATA

IN

THE

FOLLOWING FORMAT.

CA)

COMMUNICATION

FROM

SYSTEM

TO

USER.

CA)+1

1ST RECORD

WORD

COURT

(A)+2

THROUGH

CA)+N+l

RECORD

DATA.

(A)+N+2

woaD

COUNT.

ETC.

COUNT =0

AFTER

LAST

RECORD.

OUTPUT,

CA)

CONTAINS

ADDRESS

OF

"WORD

COUNT"

WORD

FOR

LAST

RECORD

WRITTEN.

THE

OP

CODE

OF

CA)

CONTAINS

ONE

OF

THE

FLAGS

LISTED

UJiDER

BRS

102.

DESCRIPTIONI

ALL

THE

DATA

AND COMMUNICATIONS

WORDS

MUST

BE

IN

ONE

PAGE.

USER

MUST

ERASE

TAPE

AT LOAD

POINT

AND

MAY

NOT

WI

TI:

BEYOND

THE

REFLECTI

VE

SPOT

EXCEPT

FOR

END

OF FILE

MARKS.

REGISTERS

AFFECTED:

NONE

DATEs

69/05/13

FUNCTIO)Jt

REPORTS

WHO

HAS

DEVICE

STATUS. USER

OUTPUT

I

A:s

DEVI CE

X.

CHAHlfEL

DESCRIPTIONI

CAN

BE

USED

TO

DETERMINE

'&HAT

W-BUFFER

DEVI

CE

IS

ASSIGNED

AND

WHAT

CHAlOIEL

THE

USER

IS

ON

\HD

IS

USING

THE

DEVICE.

DEVICE NUMBERS ARE

O-TAPE

0

..

I-TAPE

1 ..

a-PRINTER.

A

-1

IN

THE A

REGISTER

MEANS

NO

DEVICE

IS

ASSI9IED.

REGISTERS

AFFECTED. A

..

X.

*BRS

105*

DATEI

69/05/31

FUNCTIONS

[MAG

TAPEl

CONTROLS

STATUS,

USER

INPUTI

A= CONTROL NUMBER.

1=

WAIT

UNTIL

TAPE

IS

READY ..

2=

BACKSPACE

RECORD

3-

FORWARD

SPACE

FILE.. 4=

BACKSPACE

FILE

Sa:

WRI

TE

3 I NCHES

OF

BLANK TAPE..

6a

HEW!

ND

7=

WRITE

END

OF

FILE.

OUTPUT:

mE

OP

CODE

OF

A

HAS

ONE

OF

THE

FLAGS

LISTED

UNDER

APPENDIX

C.

THE

ADDRESS

OF

A

IS

DESTROYED.

*BRS

106*

DATEs

69/05/31

FUNCTION: PRINT

ON

[PRINTER]

STATUS.

USER

INPUTs

As

CORE

ADDRESS

OF

DATA

IN

THE FOLLOWING

FORMAT"

x-

WORD

COUNT

CA) COMMUNICATION

WORD

FROM

SYSTDI

TO

USER.

SEE

APPENDIX

C

CA)+!

PAPER

CONTROL.

NEG FOR

SKIP~

POSITIVE

FOR

UPSPACE.

CA)+2-CA)+34

ONE

LINE

OF

DATA

CA)+35

PAPER

CONTROL

ETC.

OUTPUT:

CA)

CONTAINS

ONE

OF

THE

OP

CODE

FLAGS

LISTED

UNDER

BRS

102.

DESCRIPTIONS

ALL

DATA

AliD

COMMUNICATIONS

WORDS

MUST

BE

IN

ONE

PAGE.

ALL

LINES

MUST

BE

COMPLETE.

REGISTERS

AFFECTEDI

NONE

*BRS107*

DATEI

69/05/13

FUNCTIONs

SET

[MAG

TAPE]

[PARITY]

STATUSs

USER

INPUT. A

IS

NEG.

FOR

[BCD]

(EVEN

PARITY).

A

IS

POSITIVE

FOB

BIRARY

(ODD

PARITY).

DESCRIPTION,

IF

THIS

SRS

IS

NOT

USED.

TAPE

WILL

BE

BEAD

IN

BINARY.

*BRS

108*

DATEs

69.105/13

FUNCTIONs

TEST

[MAG

TAPE]

[DENSITY]

STATUSI

USER

OUTPUT

I

A=O

FOR

200

A-I

FOR

556

A=2

FOR

800

DATEI

69/05/13

FONCT!

ONI

TEST

[MAG

TAPE]

READY

STATUS,

USER

RETURNS

I

NO

SKIP

= NOT READY

SKIP

= READY

DESCRIPTION:

TESTS THE TAPE

THAT

IS

ASSI

tDED.

*BRS

116*

DATEI

69/05/13

FUNCTION,

READ PROGRAM

RELABELING

STATUS

I USER

OUTPUT

I

AlB

= PROGRAM

PSEUDO-RELABELING.

DESCRIPTIONs

PUTS

THE

PROGRAM

RELABELING

INTO

A AND

B.

THIS

IS

\iRAT

THE

SYSTEM

EXECUTI

VE

USES

AS

PR8EiRAM

R!1.ABELING.

IT

IS

KEPT I N

mE

T5

BLOCK.

REGISTERS

AFFECTEDI

AI

B

*BRS

11".

DATE:

69/05/13

FORCTIONI

SET

PROGRAM

RELABELING

STATUS

I USER

INPUT:

AIBr::

THE

NEW

VALUES

FOB

THE

PROGRAM

RELABELING

DESCRIPTION:

SETS

THE

PROGRAM

RELABELING

IN

THE

TS

BLOCK

AS

SPECIFIED.

USER

PROGRAMS SHOULD

USE

BRS

44

TO

SET

RELABELING

FOR

A FORK.

INSTRUCTION

TRAP.

1)

A

SPECIFIED

RELABELING

BYTE

WAS

NOT

ASSIGNED.

2)

A USER FORK

TRIED

TO

RELABEL

A

SYSTDt

BYTE.

nilS

IS

THE

PROGRAM

RELABELING

TYPED

BY

THE

STATUS

COMMAND.

IT

SHOULD CORRESPOND TO

THE

RELABELING

OF

THE

FIRST

NON-SUBSYSTDI

FORK BELOW

nlE

!XECUTIVE.

IF

THE

FORK

IS

RURNING

UNDER

DDTI

DDT

WILL

UPDATE

THIS

RELABELING.

OTHERWISEI

IT

IS

THE

RESPON-

SIBILIT'f

OF

THE

USER.

IT

IS

PARTICULARLY

IMPORTANT

THAT

THIS

RELABELING

BE

SET

CORRECTLY

BEFORE

ISSUING

A

DUMP

COMMAND.

REGISTERS AFFECTED:

NONE

DATEs

69/05/13

FtJIICTIOR.

RELEASE

SPEClnED

[PIIT]

DlTRY

STATUSI USER

INPUTS

A-

RELABELING

BYTE

OF

THE

PAGE

TO

BE

RELEASED

DESCRIPTION:

RELEASES

THE

SPECIFIED

PAGE

FROM

THE

PMT.

IT

IS

~ACTLY

LIKE

A

EmS

4

iXCEPT

THAT

IT'

TAKES

A

BYTE

NtMBEB

INSTEAD

OF

All

ADDHESS.

INSTRUCTION

TRAPs

1)

BYTE

NOT

IN

PMT.

2)

A USER FORK

TBI

ED TO

RELEASE

A

SYSTDI

PAGE.

REGISTERS

AFFECTED'

RONE

DATEs

69/05/13

FUNCTION:

TO

ALLOW

mE

USER

TO I

~ORE

LI

HE

FEED

OR

CARRI A

GE

RETURN

WHDJ

IT

FOLLOWS A

CARRIAGE

RETURN

OB

LINE

FEED

STATUSs

USER

DESCRIPTIONs

THE CONTENTS

OF

niE

A

REGI

STER

WILL en VE

THE

FOL-

LOWING

RESULTS.

IF

A

IS

NEGATIVE,

ALL

LINE

FEEDS

AND

CARRIAGE

RETURNS

RECEIVED

FROM

THE

TELETYPE

WILL

BE

SENT

TO

THE

PROGRAM

AND

ECHOED. I F A

is

pas!

it

VE,

Ii

LX

liE

FEED

AFTER

It

CAP.R!

It

GE

RE-

TURN

RECEI

VED

FROM

'mE

C

TELETYPE]

WI

LL

BE

I

(ltOBED

(NOT

SENT

TO

THE PROGRAM

AND

NOT ECHOED) AND A

CARRIAGE

RETURN

AFTER

A

LINE

FEED WILL

BE

I SNORED

CIIOT

SENT

TO

THE

PBO(£AM

AND

NOT

ECHOED).

IN

ALL

CASES

THE

FIRST

LINE

FEED

OR

CARRIAGE

RETURN

RECEI

VED

WILL

BE

SENT

TO

THE

PROGRAM AND ECHOED

PLUS

ECHO

ITS

COMPLI-

MENT.

USED

TO

READ

PAPER

TAPE

lIHICH

HAS

BEEN

PUNCHED

OFF

LIRE.

-I/r

...

*BB5

135*

DATEI

69

/05/13

FUNCTION:

INTERRUPTS

A FORK AFTER A

SPECIFIED

PERIOD

OF

[TIME]

STATUS:

USER

Ar::

THE

NEW

[INTERRUPT]

MASK.

S-

THE

TIME

IN

MILLISECONDS

AFTER

WICH

THE

FORK

WILL

BE

INTERRUPTED.

x- 5

DESCRIPTIONt

THE FORK

ISSUING

THIS

BRS WILL

BE

INTERRUPTED

AFTER THE

DELAY

IF

IIiTERBUPT

HUMBER

5 I S

ARMED

AT

mAT

TIME.

t F A FORK Gl VES

THI

S BRS AGAIN BEFORE THE

TIME

HAS

PASSED"

THE

NEW

TIME

WILL

BE

SET.

ALL FORKS

BELOW

niE

ONE

RECEI

VING

THE

INTERRUPT WILL BE TERMINATED.

SEE

ALSO BRS

81.

REGISTERS

AFFECTEDI

NORE

*BRS

147*

DATE:

69/05/13

FUMeTION.

[CLOSE]

S ALL

DeEPT

COMMANDS-

FROM

[FI

LEl

STATUS:

USER

REGISTERS

AFFECTEDa NONE

*B115

151*

DATE:

69/05/13

FUNCTION: CHANGE COMMAlfDS-FBOM

FILE

STATUS,

USER

INPUT:

A =

FILE

NUMBER

OF

COMMANDS-FROM

FILE.

DESCRIPTIONI

CLOSES THE COMJllAllDS-FROM

FILE'

I F ONE

IS

OPEN

AND

SETS

THE

COMMANDS-FROM

FILE

TO THE

FI,LE

SPECI

FlED

IN

A.

REG!

STERS

AFFECTED: NONE

*RSP*

(125)

DATE.

69/05/13

FUMeTIONt

READ

SIZE

PARAMETERS:

ADDRESS

OF

HI

(HEST

LOCATt

ON

WITTER

..

PHYSICAL

SIZL

REMAINING

FILE SIZE

QUANTUM.

STATUS:

USER

CALLING

SEQtJmCE:

RSP

-FILE

NUMBER

OUTPUT:

A1JJ:

ADDRESS

OF

HI

(l{EST

LOCAT!

ON

WBI

TTEN.

B=

TOTAL

CURRENT

PHYSICAL

SIZE.

Xc

REMAINING

FILE SIZE

QUANTUM.

REGISTERS

AFFECTED.

ALL

*SSP*

(126)

DATEs

69/05/13

FUNCTION:

SET

SIZE

PARAMETERS

STATUS:

EXEC

INPUTI

A-

SIZE

QUANTUM

IN

CHARACTERS

CALLING

SEQtJmCEI

SSP

-FILE

NUMBER

REGISTERS

AFFECTED:

NONE

*RCP*

(131)

DATE:

69/05/13

FUNCTION:

READ

CURSOR

POSITION

STATUS: USER

CALLING

SEQUDfCEa

Rep

=FILE

NtftBER

OUTPUT:

AI

BIT 0=0 I'F FILE

IS

IN

READ

MODE

BIT 0=1

IF

FILE

IS

IN

WRITE

MODE

BITS

1-23=CP

XI

BITS

0

..

9-23

ARE UNCHANGED

BITS

1-S-FILE

OPTION

MASK

OR

O.

B I S

UNCHANGED.

*SCP*

(132)

DATE:

69/05/13

FUNCTIONs

SET

CURSOR

POSITION

STATUS.

USER

INPUT:

A=NEW

CURSOR

POSITION

SETS

FILE

TO

READ

MODE

IF

SIGN

BIT

OF

A=O

SETS

FILE

TO

WRITE

MODE

IF

SIGN

BIT

OF

A-I.

CALLING

SEQUENCE:

SCP

=FILE

NUMBER

RETURNS:

NO

SKIP

=

ERROR

AlB

ARE

UNCHANGED

X . = ERROR

NtI!BER.

Xci

=

CANNOT

SET

MODE

SPECIFIED

BY

SIGN

BIT

OF

A.

X

1:1

2

==

ARGUMENT

OUTSIDE

OF

FILE

RANGE.

SKI P

II:

NORMAL

RETURN

A

..

B~X

ARE UNCHANGED.

CIO

..

WIO

..

BIO

WILL

OPERATE

ON

UPDATED

CP.

*PCE*

(133)

DATE I

69/05/13

FUNCTIONt POSITIONS

CURSOR

AND

ERASES.

STATUS:

USER

INPUT:

A=NEW

CURSOR

POSITION

CALLING

SEQtJmCE*

peE

~FILE

NUMBElt

RETURNS:

NO

SKIP •

ERROR

AlB

ARE

UNCHANGED

X := ERROR

NUMBER

X D 1 FILE

NOT

IN

OUTPUT

MODE

X • 2

ERASE

PRlVELEGE

IS

DISABLED

X • 3 A

WAS

LESS THAN CURRENT

CP.

X D 4 A GREATER

ntAN

CURRENT

CP.

SKIP

•

NORMAL

RETURN

_I

DESCRIPTIONs

A#B#X

ARE

UNCHANGED

DEFINITIONS,

CPl

= CURRENT

CP.

CP2

=

FINAL

CP.

FILE

CHANGES:

ALL

CHARACTERS FROM

CPt

TO

CP2-1

ARE

SET

TO

ZERO.

IF

A <

CPTOP,

THEN

THE

NEW

CP

D

CP2.

I F A

GE

CPTOP JI

mE

ERASE I S

FROM

CP 1

TO

CPTOP-l

JI

niE

CP

IS

POSI

TI

ONED

TO

CPI"

CPTOP

IS

SET

TO

CPl.

THIS

IS

THE

ONLY

WAY

TO

DECREASE

CPTOP

•

eI

T*

(134)

DATE:

69/05/13

FUNeTION3

CHARACTER I RPUT AND

TEST

STATUS,

USER

IRPUT: A =

CHARACTER

TO

BE

TESTED

CALLING

SEQU'DiCEr

CIT

-FILE

NUMBER

DESCRIPTION:

THE CHARACTER

IN

THE A

REGISTER

IS

COMPARED

AGAINST

THE

NEXT CHARACTER

IN

mE

INPUT

FILE.

IF

IT

CCMPARES"

THE

NORMAL

RETURN I 5

TAKEN

AND

TriE

CHARACTER

IS

Rfl!!IO\'TED

FROM

mE

I

NPUT

BUFFER.

I

FIT

DOES NOT COMPARE"

THE

CHARACTER

IS

LEFT

I N

THE

I

NPUT

BUFFER

AND I S

RETURNED

INA.

EXCEPTION

RETURDU

A - THE

INPUT

BUFFER.

S

"X

-

NO

CHANGE.

NORMAL

RETURN: A - THE CHARACTER

SUPPLI

ED

REMAI

NS

REGISTERS

AFFECTED:

A

*WCD* (

135)

DATE:

69/05/13

IN A

(THE

CHARACTER

IS

REMOVED

FROM

THE I NPUT

BUFFER).

FURCTION:

WI

TE

CHARACTER

AND

DECREMENT

STATUS,

USER

CALLING

SEQUENCES

WCD

P

P=ADDRESS OF A

STRING

POINTER

PAIR

DESCRIPTIONI

THIS

SYSPOP

WRITES

THE

CHARACTER

IN

THE

A

REGIS-

TER

ON

ntE

BEGINNING

OF

mE

STRING

AND DECREMENTS

mE

BEGINNING

STRING

POINTER.

REGISTERS

AFFECTED:

B

*GCD*

(137)

DATEs

69/05/13

FUNCTIONs

GET CHARACTER

AND

DECREMENT

STATUS:

USER

CALLING

SEQUFNCEt

GCD

P

EXCEPTION

RETURN

NORMAL

RETURN

P a ADDRESS

OF

A

STRING

POINTER

PAIR.

DESCRIPTIONS

A

SeD

IS,

IN

EVERY

WAY,

SIMILAR

TO

Gel

EXCEPT

1HAT THAT

niE

CHARACTER

IS

TAKEN

FROM

THE

END

OF THE

SPECI

FI

ED

STRING.

THE

LAST

CHARACTER

ON

THE

STRING

IS

LOADED

IN

THE

A

REGISTER,

THE

END

STRING

POINTER

IS

DECRDtENTED

SO

THAT

IT

POINTS

TO

mE

IN

THE

STRING.

CONTROL

IS

TRANSFERRED TO

mE

EXCEPTION

RETURN I F

THE

END

POINTER

IS

NOT

EREATER

THAN

mE

BEGINNING

POINTER

BEFORE

IT

IS

DECREMENTED.

REGISTERS

AFFECTED:

A,B

*1

SC*

(140)

DATEt

69/05/13

FlIiCTIONI

CONVERTS INTERNAL

NUMBERS

TO

FORMATTED

OUTPUT

STRINGS

STATUSI USER

CALLING

SEQUENCEs

LDP

M

LDX

FORMAT

I SC

POINTER

DESCRIPTIONz

FORMAT

DESCIBES

THE

TYPE

OF

CONVERSION TO

BE

DONE.

(APPENDIX

E).

THE

CONTENTS

OF

THE

POINTER

POINT

TO

THE

CHARACTER IMMEDIATELY PRECEDING THE CHARACTER

STRING.

POINTER+l

CONTAINS

THE

CHARACTER ADDRESS

OF

mE

CHARACTER

IMMEDIATELY PRECEDING THE

POSITION

WHERE

THE

FIRST

CHARACTER

OF

OUTPUT

IS

TO

00.

M"M+l

CONTAIN

THE

FLOATING

POINT

WORD

TO

BE

CONV~TED.

POINTER+l

IS

INCREM~JTED

ONCE

FOR

L~CH

CHARACTER ADDED TO

mE

STRING.

REGISTERS

AFFECtEDI

A8

B, X

*SIC*

(141)

DATE:

69/05/13

FUNCTIONs

STRING

TO

INTERNAL CONVERSION

STATUS:

USER

CALLING

SEQUENCE:

LDX

FORMAT

SIC

POINTER

SHU

INTEGER

SHU FLOATING

DESCRIPTION:

FORMAT

DESCRIBES

THE

TYPE

OF

CONVERSION TO

BE

DONE.

(SEE

APPENDIX

E FOR

DESCRIPTION

OF

FORMAT

WORD)

mE

CONTENTS

OF

POINTER

POINT

TO

THE

CHARACTER IMMEDIATELY

PRE-

CEDING

mE

CHARACTER

STRING.

POINTER+1

CONTAINS THE CHARACTER

ADDRESS OF THE

LAST

CHARACTER

OF

THE

STRING.

INTEGER

AND

FLOATING

ARE

ROUTINES THAT HANDLE

THE

CONVERTED

IN-

PUT.

ERROR

FLAGS,

IF

APPLICABLE,

ARE

IN

THE INDEX

REGISTER.

A

DOUBLE

WORD

VALUE

CORRESPONDING

TO

THE

STRING

IS

IN

A"B

UPON

RETURN.

REGISTERS

AFFECTEDI

A,

B"

X

*FDV*

(153)

DATE:

69/05/13

FUNCTION:

FLOATING

POINT

DIVIDE

STATUS:

USER

CALLING SEQUENCE:

FDV

M

DESCRIPTION:

(A,B)/(M,M+l)

mE

CONTENTS

OF

THE

A

AND

B

REGISTERS

ARE

DIVIDED

(PLOATIN6

DIVIDE)

BY

mE

CONTmTS

OF

KDORY

LOCATIOJlS

M

AND

11+1

WIni

11IE

QUOTIENT

LEFT

IN

THE

A AliD B

REGISTERS.

REGISTERS

AFFECTEDI

A,

B

*FMP*

(154)

DATEI

69/05/13

FUNCTION:

FLOATING

POINT

MULTIPLICATIOM

STATUSt

USER

CALLING

SEQUENCE:

FMP

It

DESCRIPTIONI

(A,B)$(M,M+l)

THE CONTENTS

OF

MDJOHY

LOCATIONS

M AND

M+l

ABE

MULTIPLIED

CF1...0ATING

MULTIPLICATION)

BY

ntE

A AND B

REGISTERS

AND

THE

RESUL

T5

LEFT

I N

THE

A AND B

REGI

STERS.

REGISTERS

AFFECTED,

A, B

*FSB*

(155)

DATES

69.105/13

FUNCTION:

FLOATING

POINT

SUBTRACTION

STATUS:

USER

CALLING

SEQUENCE:

FSB

M

DESCRIPTION:

(A,B)

-(M,M+l)

mE

CORTENTS

OF

MEMORY

LOCATIORS

M

AMD

M+l

ARE SUBTRACTED

(n.OATING

SUBTRACTION)

FROM

THE

CONTENTS

OF

THE A AND B

REG-

I

STERS.

mE

RESULTS

ARE

LEFT

IN

THE

A

AND

B

REG!

STERS.

REGISTERS

AFFECTED:

A,

B

*FAD*·

(

156)

DATE:

69/05/13

FUNCTION:

FLOATING

POINT

ADDITION

STATUS:

USER

CALLING

SEQUENCE:

FAD

M

DESCRIPTION:

(A#B)+(M~M+l)

A

n.OATING

ADDITION

IS

PERFORMED TO

mE

CONTENTS

OF

MEMORY

LO-

CATION

M

AND

M+l

AND

THE

A AliD B

REGISTERS.

THE

RESULTS

ARE

LEFT

IN

THE A

AND

B REGISTERS.

REGISTERS

AFFECTED.

A~

B

*WCI*

(157)

DATEs

691'05/13

FUNCTIONs

WRITE CHARACTER AND

INCRDlDlT

STATUS:

USER

CALLING

SEQUENCE:

weI P

P •

ADDRESS

OF

STRING

POINTER

PAIR

DESCRIPTION:

weI

WRITES

THE

CHARACTER

IN

THE A

REGISTER

ON

THE

END

OF

THE

STRING

ADDRESSED

BY

nlE

END

STRING

POINTER.

nlE

END

5THI

NG

POINTER

I S I NCREMENTED

BY

ONE.

REGISTERS

AFFECTED:

B

$WIO*

(160)

DATE'

69

/05/13

FUNCTIONt

WORD

INPUT/OUTPUT

STATUS,

USER

INPUT:

A.

WORD

TO

OUTPUT

CALLING

SEQUENCE:

WIO.

FILE

NUMBER

DESCRIPTIONI

WIO

IS

USED

TO

INPUT

OR

OUTPUT A

WORD

OF

DATA.

TO

OR

FROM

THE

A

REGISTER.

ON

INPUT

AN

DiD

OF

FILE

CONDITION

RE-

TURNS A

WORD

OF

THREE

137

OCTAL CHARACTER$ AND

SETS

BITS

0 AND 7

IN

TIiE

FI

LE

NUMBER

WORD.

IF

1

NTERBUPT

4 I S ARMED.. I

TWILL

OCCUR.

IF

AN

END

OF

FILE

CONDITION OCCURS

WITH

A PARTIALLY

FILLED

OUT

VORDI

mE

WORD

I S COMPLETED

WI

TH

137

OCTAL

CHARACTERS.

I F

AN

ERROR

OCCURS"

BITS

0 AND 6 ARE

SET

IN

N.

I F

INTERRUPT"

I 5

ARMED

IT

WILL

OCCUR.

CIa

AND

WIO

SHOULD

NOT

BE MIXED

TO

READ

OR

WRITE A GIVEN

FILE.

REGI

STERS

AFFECTEDI

A.

*CIO*

(161)

DATE:

69/05/13

FUNCTIONs

CHARACTER

INPUT/OUTPUT

STATUS:

USER

INPUTS

A-S

BI

T CHARACTER

RI

(J{T

JUSTI

FI

ED.

(OUTPUT ONLY)

CALLI

NG

SEQUENCE:

eIO

=FI

LE

NUMBER

DESCRIPTIONs

CIO

IS

USED

TO

INPUT

O.R

OUTPUT A

SINCLE

CHARACTER

FROM,

OR

TO

..

A

FILE

FROM

mE

A

REGISTER.

ON

INPUT

AN

END

OF

FI

LE

CONDI

TI

ON

WI

LL SET

81

TS

0

AND

1 I

Ii

mE

FI

LE

NlMBER

AND

RE-

TURN

A i

37

OCTAL

C'"riARACTE.R.

I F I NTERRL"T 4 I S

ARMED

(SEE

BRS

I T

WI

LL

OCCUR.

THE

END

OF

1'"1

LE

CONDI

Tl

ON

OCCURS

ON

TH

E

OPERATION

AFTER THE LAST CHARACTER

OF

THE

FILE.

I F

AN

ERROR OCCURSI

Bl

TS

0

AND

6 WILL

BE

SET

IN

THE

Fl

LE

NlMBER

AND

INTERRUPT 4 WILL

OCCUR

IF

IT

IS

ARMED.

WIG

AND

BIO

SHOULD

NOT

BE MIXED

WITH

CIO

TO

READ

OR

iBITE

A

GIVEN

FILE.

REGISTERS

AFFECTEDs A

*SKSS*

(162)

DATEI

69

/05/

13

FUNCTION:

SKIP

ON

STRING

GREATER

STATUS: USER

CALLING SEQUEl'JCEt

LDA

B

LDB E

SKSG

A

EXCEPTION RETURN

NORMAL

RETURN

B • BEGINNING

STRING

POINTER

E =

DID

STRING

POINTER

A •

ADDRESS

OF

A

STRING

POINTER

PAIR

DESCRIPTIONs

THIS

SYSPOP

COMPARES

THE

STRING

INDICATED

BY

A

AND

B

REGISTERS

WITH THE

STRING

INDICATED

BY

A OF THE CALLING

SEQUENCE

..

CHARACTER

BY

CHARACTER

AND

TERMINATES

WI

TH

THE

FIRST

UNEQUAL CHARACTER.

THE

NUMERICAL

INTERNAL

CODE

REPRESENTATION

OF CHARACTERS

IS

USED

TO

DETERMINE

INEQUALITY.

IF

nlE

STRINGS

ARE

EQUAL

FOR

THE

EllTIRE

LENGTH

OF

THE SHORTER

ONE

..

THE LONGER

ONE

IS

INDICATED

AS

GREATER.

IF

THE

CONTENTS

OF

THE

STRING

AD-

DRESSED

BY

mE

A

AND

B

REGISTERS

IS

GREATER

mAN

THE

CONTENTS

OF

THE

STRING

ADDRESSED

BY

A~

CONTROL

WILL

BE

TRANSFERRED

TO

THE NORMAL

RETURN.

OTHERWISE,

CONTROL

IS

TRANSFERRED

TO

nIE

EXCEPTION

RETURN.

REGISTERS

AFFECTED:

NONE

*SKSE*

(

163)

DATEI69/05/13

FUNCTIONl

SKIP

ON

STRING

EQUAL

STATUS:

USER

CALLING

SEQUD1CEI

LDA'

B

LDB

E

SKSE

A

EXCEPTION

RETURN

NORMAL

RETURN

A a

ADDRESS

OF

A

STRING

POINTER

PAIR

B =

BEGINNING

STRING

POINTER

E = END

STRING

POINTER

DESCRIPTION:

IF

THE

STRINe

ADDRESSED

BY

THE

POINTERS

IN

THE

A

AND

B

REGISTERS

IS

IDENTICAL

WITH THE

STRING

ADDRESSED

BY

A

OF

TIlE

CALLING

SEQUENCE~

CONTROL

WILL

BE

TRANSFERRED

TO

THE

NORMAL

RETURN.

OTHERWISE.

CONTROL

WILL

BE

TRANSFERRED

TO

THE

EXCEP-

TION

RETURN.

IF

THE

STRINGS

ARE

OF

DIFFERENT

LENGllIS

OR

HAVE

Dl

FFERmT

CONT!lIJTS.. CONTROL

WILL

BE

TRANSFERRED

TO

THE

EXCEP-

TIOM

RETURN.

REGISTERS

AFFECTED:

NONE

DATE:

69/11/11

FUMeTIONa

WI

TE

CHARACTER

STATUS:

USER

CALLING

SEQUENCE.; LDA C

WCH

T

C = A CHARACTER

RI

a1T-JUSTI

:n ED I N

THE

A

REG!

STER.

T =

THE

ADDRESS

OF

A

THREE

WRD

TABLE.

THE

TABLE

IS

AS

FOLLOy/51

WORD

0 = A

CHARACTER

ADDRESS

WORD

1 = A CHARACTER

ADDRESS

WORD

2 • A

TRANSFER

ADDRESS

DESCRIPTION.

THIS

SYSPOP

TRIES

TO

WRITE

A CHARACTER

INTO

THE

AREA

DEFINED

B'(

mE

CHARACTER

ADDRESSES

IN

THE

TABLE.

PRom

DED

THAT

1HE

FIRST

ADDRESS

IS

NOT ONE

LESS

THAN

mE

SECOND

ADDRESS

..

WCH

WILL

WRITE

THE

CHARACTER

IN

THE

A

REGISTER

INTO

THE CHARACTER

POSITION

INDICATED

BY

THE

FIRST

CHARACTER

ADDRESS

PLUS

ONE

AND

WILL

INCR:E)IIENT

THE

FIRST

CHARACTER

ADDRESS

IN

THE

TABLE.

OTHER

WI

SE

THE

CHARACTER

IS

NOT

WRITTDI

AND CONTROL

IS

TRANSFERRED

TO

THE

TRANSFER

ADDRESS

SPECIFIED

IN

THE

TABLE.

OF

THE

WCB

IN

mE

B

REGISTER.

THE

ADDRESS

IN

THE

THIRD

WORD

OF

THE

TABLE

CAN

BE

AN

~I

T TO A

ROUTI

ME

lIII

CH

ALLOCATES

MORE

M~ORY

OR

GARBAGE

COLLECTS

THE

R~AINING

CHARACTERS.

IN

El

THER CASE

mE

LEFT

16

BI

TS

OF

A ARE

SET

TO

ZERO.

REGISTERS

AFFECTED:

A~B

*GCl*

(165)

DA

TEl

69/05/1

3

FUNCTION:

GET

CHARACTER

AND

INCRDlENT

STATUSI

USER

CALLING

SEQ~CEI

Gel

A

EXCEPTlON

RETURH

NOBMAL RETURN

A

III

ADDRESS

OF

A STRING

POINTFli

PAIR

DESCRIPTIONs

nilS

SYSPOP

READS

INTO

ntE

A

REGISTER

mE

FIRST

CHARACTER

FROM

THE

STRING

INDICATED

BY'

THE

BEGINNING

STRING

POINTER

GI

VEN

IN

TIiE

CALLING

SEQUENCE.

I F THE

STRING

IS

NULL

OR

EMPTY

..

NOniING

IS

DONE

AND

CONTROL

IS

TRANSFmRED

TO

TIlE

D{CEPTION

RETURN.

IF

mE

STRING

IS

NOT HULL

ITS

FIRST

CHAR-

ACTER I S

LOADED

I

NTO

THE A

RESI

STm

HI

tET-JUST!

FI

ED..

AND

THE

BEGINNING STRING

POINTER

IS

INCRFJIIENTED

BY

ONE

so

mAT

THE

BEGINNING

STRING

POINTER

NOW

POINTS

TO

THE

STRING

WITH

THE

FI

RST

CHARACTER

DELETED.

CONTROL

I S TRANSFERRED TO

THE

NORMAL

RETURN. UNLESS A

COpy

OF

THE

ORI

GINAL

POINTER

IS

SAVED

..

THE

CONTENTS OF THE STRING ARE

EFFECTI

VELY DESTROYED.

REGISTERS

AFFECTED:

A

*LDP*

(166)

DATE:

69/05/13

FUNCTION:

LOAD

POINTERS

STATUS:

USER

CALLING

SEQu~CEi

A = ADDRESS OF A STRING

POINTER

PAIR

DESCRIPTION:

THIS

SYSPOP

LOADS

THE STRING POINTERS

INDICATED

IN

THE

CALLING

SEQUENCE INTO THE A

AND

B REGISTERS.

REGISTERS

AFFECTED:

NONE

*STP*

(167)

DATE:

69/05/13

FUNCTION:

STORE

POINTERS

STATUS:

USER

CALLING

SEQUENCE:

STP

A

A =

ADDRESS

OF

A STRING POINTER PAIR

DESCRIPTION:

THIS

SYSPOP

IS

GENERALLY USED

IN

CONJUNCTION

WITH

LDP.

IT

STORES

THE CONTENTS OF

mE

A

AND

B REGISTERS

INTO

THE

STRING

POINTERS

INDICATED

IN

THE

CALLING

SEQUENCE.

REGISTERS

AFFECTED:

NONE

*SBRM*

(170)

DATEs

69/05/13

FUNCTION: EXECUTES A

BRM

INDIRECT

STATUS:

USER

CALLING

SEQUENCEs

SBRM

A

DESCRIPTION:

LOC.

INSTR.

ADDRESS

A

ZRO

B

mE

LOCATION

OF

THE

SBRM

INSTRUCTION

IS

STORED

IN

B

AND

CONTROL

IS

TRANSFERRED

TO

LOCATION

A+l.

REGISTERS

AFFECTED:

NONE

-r8-

*TCI*

(174)

DATE:

69/05/13

FUNCTIONs

TELETYPE

CHARACTER

INPUT

STATUSt USER

CALLING

SEQUENCE.

TCI

M

M •

MEMORY

LOCATION

DESCRIPTIONs

THIS

SYSPOP

READS

mE

CHARACTER

FROM

THE

TELETYPE

INPUT BUFFER

AND

PLACES

IT

INTO

THE

LOCATION)II

RIQ{T

JUSTIFIED.

THE

REMAINDER

OF

LOCATlON

MIS

CLEARED.

mE

CHARACTER I S

ALSO

PLACED

IN

THE

A

REGISTER

RIGHT

JUSTIFIED.

REGISTERS

AFFECTEDs

A

*TCO* (

175)

DATE:

69/05/13

FUNCTION:

TELETYPE

CHARACTER OUTPUT

STATUS.

USER

CALLING

SEQUENCEs

Teo

M

M =

MEMORY

ADDRESS

DESCRIPTION:

THIS

SYSPOP

OUTPUTS

THE

CHARACTER

FROM

THE

Rl

GiT-

MOST

EX

SiT

BITS

OF

LOCATION

M TO

THE

CONTROLLING

TELETYPE.

IN

ADDITION

TO

THE

ORDINARY

ASCII

CHARACTERS.

ALL

TELETYPE

OUTPUT

OPERATIONS

WILL

ACCEPT

135

OCTAL

AS

A

MULTIPLE

BLANK

CHARACTER.

THE

WILL BE

TAKEN

AS A

BLAh'1(

COt,i'NT

..

~~D

THE INDICATED

NUMBER

OF

BLANKS

WILL

BE

TYPED.

REGISTERS

AFFECTED: NONE

*BIO*

(176)

DATEs

69/05/13

FONCTION:

BLOCKED

INPUT

IOUTPUT

STATUSt

USER

INPUTs

A = NtJwIBER

OF

WORDS

TO

BE

BEAD

OR

WI

TTEN.

X =

STARTING

MEMORY

ADDRESS.

CALLING

SEQUENCE:

BIO

=

FILE

NUMBER

EXCEPTION

RETURN

NORMAL

RETURN

OUTPUT.

A.

FIRST

MEMORY

LOCATION

NOT

READ

INTO

OR

OUT

OF

AT

END

OF

OPERATION.

DESCRIPTION:

BIO

IS

USED

TO

INPUT

A BLOCK

OF

WORDS

TO

MEMORY

OR

OUTPUT A BLOCK

OF

WORDS

FROM MEMORY.

THE

A

REGI

STER

WI

LL

CONTAIN

THE

FIRST

MEMORY

LOCATION

NOT READ

INTO

OR OUT

OF

AT

THE

END

OF THE

OPERATION.

I F

THE

OPERATION

I S COMPLETED

SUC-

CESSFULLYI

CONTROL

WILL

BE

TRANSFERRED

TO

THE

NORMAL

RETURN;

OTIiERWISE,

CONTROL

WILL

BE

TRANSFERRED

TO

mE

:EXCEPTION

RETURN.

ON

INPUT

AN

END

OF

FILE

CONDITION

WILL

SET

BITS

0

AND

7

IN

THE

FILE

NUMBER.

AN

ERROR

WILL

SET

BITS

0 AND

6.

INTERRUPT

II

WILL

OCCUR I

FARMED

WHFl9

ANY

OF

THESE

BI

TS

ARE

SET.

EXCEPTION

CONDITIONS

ARE:

1.

END

OF

FILE

2.

BAD DATA

REGISTERS

AFFECTED:

A

.,11-

SECTION

5.0

*SRS

1*

DATEI

69/051'13

FUNCTION:

OPEN A

FILE

STATUS,

EXEC

INPUTI

A= X BLOCK ADDRESS

DIVIDED

BY "

B

~

PRIVELEGE

BITS

FOR

RANDOM

FILES.

BIT

18=

USER

MAY

EFFECTIVELY

EXECUTE

SCP

SYSPOP

BIT

19=

0

BIT

20=

0

BIT

21=

USili

MAY

ERASE

INFORMATION

(MAY EXECUTE

PCE).

BIT

22=

USER

MAY

SET

A FILE

TO

WRITE

MODE.

BIT

23-

USER

MAY

SET

A FILE

TO

READ

MODE.

OUTPUTs A=

FI

LE

NUMBER

X=

X

BLOCK

ADDRESS

DIVIDED

BY

4

OR

ERROR

NUMBER.

RETURNS.

SKIP

•

NORMAL

RETURN

NO

SKIP =

ERROR

RETURN.

ERROR NUMBERS ARE

1-

FI

LE

BUSY

2=

TOO MANY FI

LES

OPEN

3= BIT

MAP

NOT

SET

4=

FILE

ERROR

DESCRIPTION:

A

FILE

MAY

BE

OPENED FOR

INPUT

ANY

NlJItBER

OF

TIMES.

A

FILE

mAT

I S OPEN CANNOT

BE

OPENED FOR OUTPUT AND A

FILE

THAT

IS

OPEN FOR

OUTPtrr

CANNOT

BE

OPENED

AGAIN.

REGISTERS

AFFECTED.

AIX

MTEI

69/05/13

FUNCTIONs

CLOSE

A

FILE

STATUSt

EXEC

INPUT:

A=

FILE

Nt.MBER

DESCRIPTIONa

THE

"CLOSE

FILE"

BRS

ISUSED

TO

INDICATE

TO

THE

SYSTEM

ALL

PROCESSING

IS

COMPLETED

ON

nilS

FILE.

ALL

NECESSARY

TERMINATION

PROCESSING

WILL

BE

COMPLETED AND CONTROL WILL

BE

TRANSFERRED TO

ntE

NORMAL

RETURN.

DIRECTORY

BIT

MAP.

A=OVERFLOW

POINTER

-

RELEASES

GROUP.

TURNS

OFF

BIT

IN

BIT

MAP.

A =

OVERF1.OW

POINTER

AND

BI

T 0=1 -

TURNS

BI

T

ON

IN

BI

T

MAP.

REGISTERS

AFFECTEDI

ALL

DATE:

69/05/13

FUNCTIONI

SETS

SUBSYSTDJ

COUNTER

TO

0

STATUS:

SUBSYSTEM

I

NPUT:

A = COUNTER NUMBER

(0-

31

)

DESCRIPTION:

SETS

THE

COUNTER

SPECIFIED

BY

A

TO

O.

REGISTERS

AFFECTED:

NONE

-.r1-

DATEs

69/05/13

FUNCTIONI

I

NCR~ENT

SUBSYSTEM

COUNTER

STATUS:

SUBSYSTEM

INPUT:

A.

COUNTER NUMBER

(0-31)

DESCRIPTION:

INCREMENTS

THE

COUNTER

SPECIFIED

BY

A.

REGISTERS

AFFECTED:

NONE

DATE:

69/05/13

ruNeTION:

READS

THE

SUBSYSTEM

COUNTER

STATUS:

SUBSYSTEM

INPUT:

A = COUNTER NUMBER

(0-31)

DESCRIPTIONt

RETURNS

mE

VALUE

OF

THE

COUNTER

SPECI

FlED

BY A

IN

As

REGISTERS

AFFECTED:

A

*BRS

100*

DATE:

69/05/13

FUNCTION:

ASSIGNS A

DEVICE

TO

A

USER

STATUS,

OPERATOR

INPUTs

A= DEVI

CE

NUMBER

DEVICE

NUMBERS:

O=TAPEO~

1=TAPE1# 2=PRINTER

RETURNSt

NO

SKIP-ERROR; DEVICE

ALREADY

ASSIGNED.

SKIP-NORMAL

RETURN

DESCRIPTION:

THE

DEVICE

IS

ASS! GNED TO

THE

USER.

AFTER

THAT

THE

USER

CAN

DRIVE

THE

DEVICE

DIRECTLY

USING

THE

011{ER

BRS

'5.

MAG

TAPE

IS

SET

TO

onD PARITY.

ONLY

ONE

DEVICE

CAN

BE

ASSIGNED

AT

A

TIME.

*BRS

101*

DATEt

69/05/13

FUNCTION:

UNASSIGN

DEVICE

STATUS:

OPERATOR

DESCRIPTIONSs

RESETS

DEVICE

ASSIGNMENT.

USER

CAN

NO

LONGER

ACCESS

DEVICE

WITH

BRS·S.

REGISTERS

AFFECTED:

NONE

DATE:

69/05/13

FUNCTION:

DISMISS

STATUS:

USER

CALLING

SEQUENCE:

BRS

109

DESCRIPTIONI

THE

FORK

IS

DISMISSED.

IT

CAN

ONLY

BE

ACTIVATED

AGAIN

Fl

A

PROGRAM

INTERRUPT

\filCH

HAS

BEEN

ARMED

BY

THIS

FORK

OR

THE

TERMINATION

OF

A

LOWER

FORK.

REGISTERS

AFFECTEDI

NONE

*BRS

111

*

DATE.

69/05/13

FUNCTION'

RETURN

FROM

CLASS

3

BRS

STATUS:

EXEC

DESCRIPTION:

THIS

BRS

IS

USED

ONLY

BY

nlE

AUTHOR

OF

CLASS

3

BRS'S.

IT

IS

THE

ONLY

BORMAL

TERMINATION

OF

A CLASS 3

ERS.

IT

CORRESPONDS

TO

A SRS 10

FOR

OTHER

FORKS.

INSTRUCTION

TRAPs

BRS

ISSUED

BY

A

FORK

WHICH

WAS

NOT

A

CLASS

3 BRS.

REGISTERS

AFFECTEDI

NONE

*BRS

112*

DATE:

69/05/13

FUNCTION:

REMOVE

A

JOB

FROM

THE

SYSTEM

STATUS:

EXEC

INPUT:

A=

JOB

NUMBER

NO

RETURNS

REGISTERS

AFFECTEDI

ALL

DATE:

69/05/13

FUNeTION:

TERMINATE

CLASS

3

BRS

FORK

WI

TH

RUBOUT

STATUS:

EXEC

BRS

DESCRIPTION: TERMINATES

THE

EXEC

BRS

AND

CAUSES

A

RUBOUT

FOR

THE

JOB.

*BRS

120*

DATE:

69/05/13

FUNCTION:

ASSI~

PMT

ENTRY

STATUS,

EXEC

INPUT:

A =

RELABELING

BYTE

DESCRIPTIONI OBTAINS A

NEW

PAGE

FOR

THE

RELABELING

BYTE

SPECI-

FI

ED.

irilS

BRS

I S

USED

ONLY

IN

THE

RECOVER

ROUTINE

IN

THE

EXEC.

INSTRUCTION

TRAPs

1 ) PMT ENTRY I S ALREADY

ASSI

9JED.

2)

mE

RELABELING

BYTE

NUMBER

WAS

NOT

IN

THE

PMT.

REGISTERS

AFFECTED'

NONE

DATE:

69/05/13

FUNCTIONs

WRITE

DISC

WITHOUT

DISMISS

STATUS:

EXEC

DESCRIPTION:

WORKS

EXACTLY LIKE A

BRS

125

EXCEPT

THAT

CONTROL

IS

RETURNED

TO

THE

CALLING

FORK IMMEDIATELY

INSTEAD

OF

WAITING

UNTIL

THE

WI

TE I S COMPLETED.

DATE:

69/07/06

FUNCTION:

READ

DISC

STATUS:

SYSTDI

CALLING

SEQUENCE:

LDA

=CORE

ADDRESS

LDB

=DISK

ADDRESS

LDX

-NUMBER

OF

WORDS

BRS

124

NORMAL

RETURN

DESCRIPTION:

READS FROM

THE

DISK

AS

SPECIFIED.

ERRORS

RESULT

IN

AN

INSTRUCTION

TRAP ..

OR

PROGRAMMED

INTERRUPT

11

IF

IT

IS

ARMED.

TWO

FORKS THAT

ARE

TO HUll

SIMULTANEOUSLY

SHOULD NOT

BOTH

USE

THZ

S

BRS.

THE

NlMBER

OF

WORDS

MUST

BE

A

MULTIPLE

OF

64

AND

GREATER

mAN

O.

THE

BRS

WILL

NOT

READ OVER

PAGE

BOUND-

ARIES.

REGISTERS

AFFECTED:

NONE

*BBS

125*

DATEa

69/05/13

FUNCTIONs

WRITE

DISC

STATUS,

EXEC

CALLING

SEQUENCEI

A a

CORE

ADDRESS

B •

DISK

ADDRESS

X •

NUMBER

OF

WORDS

DESCRIPTION.

LIKE

ERS

12~.

THE

NUMBER

OF

WORDS

MUST

BE

A

NUL:

TIPLE

OF

64

AND

GREATER THAN

O.

REGISTERS

AFFECTED.

NONE

DATE:

69.105/13

FUNCTIONI

TEST

FOR

CARRIER

PRESE&CE

STATUS:

SYSTDI

INPUT:

A=LINE

NtMBER

. RETURNS I

NO

SKI P =

NO

CARRI

ER

SKIP =

CARRIER

REGISTERS

AFFECTED:

NONE

.BRS

127.

DATE:

69/05/13

FUNCTIONI READS

ONE

WORD

I N CORE

STATUS:

SYSTDtJ

INPUTI

X:=

16

:81

T CORE

ADDRESS

DESCRIPTIONs

ALLOWS

A SYSTEM

PROGRAM

TO

READ

THE

CONTENTS

OF

ANY

LOCATION

IN

THE

MEMORY.

mE

ORIGINAL

CONTENTS

OF

THE

LOCATION

ARE

ALWAYS RETURNED IN

THE

A

REGISTER.

REGISTERS

AFFECTED.

A

DATEs

69/05/13

FUNCTION:

SET

DISK

BIT

MAP

STATUS,

EXEC

CALLING

SEQlJmCE: LDA

=ADDRESS

OF

X BLOCK

DI

VIDED

BY

4

BRS

128

EXCEPTION

RETURN

NORMAL

RETURN

EXCEPTION

RETURN

- A

CONTAINS

ADDRESS

THAT

WAS

·IN

CONFLICT.

DESCRIPTION: TURNS

OFF

BITS

IN

THE

DISK

BIT

MAP

FOR

THE

X

BLOCK

AND

EACH

DATA

BLOCK REFERENCED

BY

THE INDEX BLOCK.

IF

.

ANY

CONFLI CTS OCCUR

(THE

81

TIS

ALREADY

OFF)

# THE ADDRESS

IS

LEFT

IN

THE

A

REGISTER

AND

mE

EXCEPTION

RETURN

15

TAKER.

A

CONFLI CT ALSO I NCREMENT5 ONE

OF

TWO

COUNTERS# XBERR

OR

FDERR#

FOR

ERRORS

IN

THE

X

BLOCK

OR

THE

FILE

DIRECTORY

RESPECTIVELY.

WHEN

THE

81

T MAP

HAS

BEnt

SET

# ONE MORE

CALL

I S

MADE

TO

nil

S

BRS

WI

TH

A HEGATI VEe AT THAT

11

ME

A S

WI

TeN

15

SET

ALL

0

WI

N 6

OUTPUT FILES

TO

BE OPENED; THE

NEW

OVERFLOW

POINTEB

IS

SET

FROM

B AND THE ACCOUNTING AREA

POINTER

I S SET

FROM

X.

REGISTERS

AFFECTED:

A

.BRS

129*

DATE:

69/05/13

FUNCTIONs

TURNS A

TELETYPE

LINE

ON

OR

OFF

STATUS:

SY

STDt

INPUT:

A

=TELETYPE

I

B

=0

(OFF)

OR

-1

(ON)

REGISTERS

AFFECTED:

NONE

*BRS

130*

DATE:

69.105.113

FUNCTION:

TEST

A BREAKPOINT SWITCH

STATUS:

SUBSYSTDJ

CALLING SEQUENCE:

LDX

=SWITCH

NUMBER

J:jn;:,

130

SWI TCH

UP

RETtJRlQ

SWITCH

DOWN

RETURN

DESCRI~TION:

TESTS

THE

BREAKPOINT

SWITCH

(1#2#3#4)

INDICATED

IN

X.

IF

mE

SWITCH

IS

DOW#

THE

SRS

SKIPS

ON

RETURN.

REGISTERS

AFFECTED. NONE

*BRS

131*

DATE:

69/05/13

FUNCTIONs

TO

CRASH THE

SYSTD!

STATUS: EXEC

NO

RETURN

DESCRIPTION:

SAVES THE

REGISTERS

IN

5501

..

5502#

SS03.

SAVES

o

IN

MCRO. TURNS

OFF

THE CLOCK

AND

DISABLES THE

INTERRUPTS.

MOVES

THE

TS

BLOCK

INTO

REAL PAGE

14.

REGISTERS

AFFECTED.

NONE

*BBS

136*

DATE.

69/05/13

FUNCTION.

SETS

SYSTEM

EXEC

SWITCHES

IN

SYMS

STATUS: EXEC

CALLING SEQUENCE. LDA V

LDX

N

BRS

136

NORMAL

RETURN

V •

NEW

SWITCH VALUE

N = SWITCH NtMBER

DESCRIPTION:

THE SWITCH

IS

SET

TO

THE

NEW

VALUE

AND

THE

OLD

VALUE

IS

RETURNED

IN

A.

REGISTERS AFFECTED: A

DATE:

69/05/13

FUNCTIONI

GETS

EXEC

SUBROUTINES

STATUS:

EXEC

DESCRIPTIONI

CHECKS

THAT

THE

ISSUING

FORK

HAS

EXEC STATUS.

IF

IT

DOES~

AN

EXEC

BRS

IS

ISSUED. THIS

BRS

IS

USED

TO

ALLOW

SYSTEM

STATUS

FORKS

TO

ACCESS

SUBROUTINES

IN

THE

!JCEC.

REGISTERS

AFFECTED:

NONE

*BRS

144*

DATE:

69/05/13

FUNCTION:

GETS

A

BUFFER

STATUS:

EXEC

OUTPUT: A =

ADDRESS

OF DATA AREA

IN

BUFFER.

RETURNS.

NO

SKIPs

NO

FREE

BUFFERS

SKIP:

NORMAL

RETURN

DATE:

69/05/13

FUNCTION:

RETURNS

A BUFFER

STATUS:

EAEC

INPUT:

A =

ADDRESS

OF

DATA

AREA

IN

BUFFER

TO

BE

RETURNED

DESCRIPTION:

RETURNS

THE

BUFFER

TO

THE

MONITOR.

REGISTERS AFFECTEDI

NONE

*BRS

152*

DATEI

69/05/13

FUNCTION:

IGNORE

OFF-INTERRUPTS

STATUSI

SUBSYSTDI

CALLI

N G

SEQUENCEI

LDB N

ERS

152

N =

-1

TO

TURN

INTERRUPTS

OFF

N = 0

TO

TURN

INTERRUPTS

ON

DESCRI

PTI

ON: I

GNORES

THE

OFF

INTERRUPTS

FRC»J

THE

USER

'5

CHAN-

NEL

UNTIL

IT

IS

RESET.

REGISTERS AFFECTED:

NONE

PSEUDO

RELABELING

*PMT

INFORMATION*

DATEI

69/

11

/1

6

PSEUDO

RELABELING

IS

A MECHANISM

\iiEREBY

A

MACHINE

LANGUAGE PROGRAM CAN

ACCESS

MORE STORAGE

1jiAN

16K

WORDS

WI

mOUT

USI

NG

THE

DISK.

A

PAGE

I S A

UNI

T

OF

I NFORMATI

ON

COMPBI

SED

OF

2048

WORDS.

A

PAGE

IS

SOMETIMES

IN

CORE~

SOMETIMES

ON

THE

DRUMCRAD)

AND

SOMETIMES

ON

BOTH

AT

ONCE.

WEN

A USER

PROGRAM

I S RUNNING I T HAS

DIRECT

ACCESS

TO

EI

CBT

PAGES

OR

LESS.

A

BRS

43

TELLS

A

USER

WHICH

OF

mE

USER'S

EI

(HT

POSSIBLE

PAGES

ARE

IN

USE

AND

FOR

THOSE

IN

USE

IT

Gl

VES

A

PAGE

NAME

l,I1I

CH

CAN

BE

USED

IN

OTHER

BRS'S.

WHEN

A PROGRAM

LOADS

OR

STORES

AT

AN

ADDRESS

\HICH

DOESN'T

CORRESPOND

TO

A

PAGE"

THE

PROGRAM

IS

TRAPPED

AND RESTARTED

LATER

WI

TH

A

REAL

PAGE

AT THAT

ADDRESS.

A BRS

44

DIRECTS

mE

MONI TOR TO

PLACE

PAGES

AT

SPECI

Fl

ED

ADDRESSES

IN

THE

USER

'5

PROGRAM.

THESE

PAGES

ARE

NAMED

WI

1M

mE

NAMES

GIVEN

BY

THE

MONITOR

IN

43'S.

*APPENDIX

A*

DATE:

69/05/31

APPENDIX

A

* GLOS SARY *

BREAKPOINT

SWITCH

REFERS

TO

THE

FOUR

(TOGGLE

SWITCH1ES

PHYSICALLY

LOCATED

ON

THE

COMPUTER

CONSOLE.

COMMAND

FILE

THE PARTICULAR

FILE

FROM

WHICH

THE

COMMANDS

TO

mE

SYSTD!

EXECUTIVE

AND

SUBSYSTEMS

ARE

INPUT.

FOR

TELETYPE

INPUT

-mE

COMMAND

FILE

NUMBER

IS

ZERO.

CUSTOMER

FILE

DIRECTORY

THE

NAMES

OF

ALL

FILES

FOR A

PART!

CULAR

USER

ARE

RECORDED

IN THIS

DIRECTORY.

DISK

BLOCK

FOUR

CONSECUTIVE

[SECTORS]

ON

THE

DISK. A

BLOCK

CONSISTS

OF

256

WORDS.

DISK

DATA

BLOCK

A DISK

BLOCK

WHICH

CONTAINS

DATA

IN

THE

FILE.

D!

SK

FILE

A

FILE

STORED

ON

THE

DISK.

EACH

FILE

CONSISTS

OF

AT

LEAST

AN

[INDEX

BLOCK]

AND

IF

THE

FILE

CONTAINS

DATA"

THEN

A

SUFFI

CI ENT

NUMBER

OF DI

SK

DATA

BLOCKS

TO

RECORD THE

DATA.

EXECUTIVE

BRS

AN

EXECUTI

VE

BRS

I S ONE

WHI

CH

STARTS

A

FORK

TO

EXECUTE.

FILE

NUMBER

A

FILE

NUMBER

IS

ASSI

~ED

BY

THE SYSTEM

TO

FILES

AS

THEY

ARE

OPENED.

ALSO..

THERE

ARE

FIXED

FI

LE

NUMBERS FOR

CER-

TAIN

DEVICES.

THESE

ARE

AS

FOLLOWS~

o

TELETYPE

INPUT

1

TELETYPE

OUTPUT

2

[NOTHING]

FILE

TYPE

FORK

THERE

A.t:tE

FOUR STANDARD

FILE

TYPES.

THEY

ARE

AS

FOLLOWS:

1

FILE

WRITTEN

BY

mE

SYSTEM

FXECUTlVE

AS

COMMAND-

ED BY

THE

"SAVE"

COMMAND.

2 GENERAL

Bl

NARY

FI

LE

CREATED

BY

A

SUBSYSTEM"

I.

E."

A

FORTRAN

OBJECT

PROGRAM.

3 SYMBOLI C

FILE

4

DUMP

FILE

(INPUT

ONLY)

A FORK

IS

ALL

OR

PART

OF

A

PROGRAM.

A PROG1AM

MAY

CONSI5T

OF

ONE

TO

EIGHT

FORKS

AND

THESE

FORKS

MAY

BE

IN A HIERAR-

CHY

ONE TO

ANomER.

AT

LEAST

ONE FORK

15

ASSOCI

ATED

WI

1li

EACH

ACTIVE

USER

IN

THE

SYSTEM.

FORK

STATES

-2

DISMISSED

FOR

INPUT/OUTPUT.

-1

RUNNING.

o

D1

SMI

SSED

ON

ESCAPE

KEY

OR

PRO GiAMMED

PANI

C.

1

DISMISSED

ON

ILLEGAL

INSTRUCTION

PANIC.

2 DISMISSED

ON

MEMORY

PANIC.

INSTRUCTION

(TRAP]

A

PANIC

CAUSED

BY

ATTEMPTING

TO

EXECUTE

AN

INSTRUCTION

WHI

CH

CANNOT

BE

EXECUTED

IN

THE

USER

"ODE"

SUCH

AS

A

HALT

OR

DEVICE

INPUT/OUTPUT INSTRUCTION

OR

A

BRS

WHICH

IS

NOT

AVAILABLE

TO

THE

USER.

MEMORY

(TRAP]

A

PANI

C

CAUSED

BY A

FORK

ATTEMPTI

N G

TO

ADDRESS

MEMORY

OUT-

SIDE

ITS

RANGE OR

WRITE

ON MEMORY

aIICH

IS

SET

TO

READ

ONLY.

PAC

TABLE

PAGE

PANIC

EACH

FORK

IS

DEFINED

BY

A

PROGRAM

ACIIVE TABLE. THIS

TABLE

CONTAINS

MOST

OF

THE

INFORMATION

REQUIRED

TO

CON-

TROL SELECTION"

EX

ECUTI

ON

AND

I

NTERRUPTI

ON

OF THE

FORK

(ADDITIONAL

INFORMATION

IS

STORED

IN

THE

USER'S

15

PAGE).

A

PAGE

CAN

EXIST

ON

RAD"

DISK OR

IN

CORE

MEMORY

BUT

IN

ALL

CASES

REFERS

TO

2048

WORDS.

A

PANIC

IS

A

SIGNAL

TO

THE

SYSTEM

TO

BREAK

EXECUTION

OF

A

FORK.

PANIC

TABLE

WORD

o = BITS 5-8=SUBSYSTEM

INDEX"

BITS

14-23-PROGRAM

COUNTER

1 = A

REGI

STER

2 = B REGISTER

3 = X REG!

STrn

4 = FIRST

RELABELING

REGISTER

5 •

SECOND

RELABELl

N G

REGI

STER

6 = STATUS

THE

STATUS

WORD

MAY

BEl

-2

DISMISSED

FOR

INPUT/OUTPUT

-1

RUNNING

o DISMISSED

ON

ESCAPE

OR

BRS

10

1

DI

SMI

SSED

ON

ILLEGAL

INSTRUCTION

TRAP

2

Dl

SMI

SSED

ON

MEMORY TRAP

A

PANIC

TABLE

MUST

NOT

OVERLAP

A

PAGE

BOUNDARY.

QU~~TUM,

LONG

TIME

TIlE

MAXIMUM

LENGTH

OF

(TIME)

A FORK CAN

RUN

BEFORE

THE

SCHED-

ULER

CHECKS

FOR

OTHER

FORKS

TO

BE

RUN.

QUANTu~"

SHORT

TIME

mE

MINIMt14

LENGTH

OF

CTIME)

A

FORK

WILL

RUN

BEFORE

THE

SCHEDULER

CHECKS

FOR

ornER

FORKS

TO

BE

RUN

WiI

CH

WERE

DI

S-

MISSED

FOR

INPUT/OUTPUT.

RELABELING"

PSEUDO

SEE

RELABELI

NG

REGI

STERS

RELABELING

REGI

STERS

THE

RELABELI

HG

REGI

STms

ARE

USED

TO

I

NDI

CATE

A

PA

GE

NlI"J-

BER

WHICH

HAS

BEEN

ASSIGNED

TO

A

USER

FOR

A

PARTICULAR

LOG!

CAL

PAGE.

THEY

ARE OF THE

FORMa

FIRST

WORD

PAGE

0

PAGE

1

PAGE

2

PAGE

3

SECOND

WORD

PAGE

4 PAGE 5

PAGE

6 PAGE 7

STRING

POINTERS

A PAIR

OF

POINTERS

WHICH

CONTAIN

A

CHARACTER

ADDRESS

OF

THE

CHARACTER

BEFORE

THE

FI

RST

CHARACTER

OF

A

STRI

N G

AND

A

CHARACTER

ADDRESS

OF

THE

LAST

CHARACTER

OF

nlE

STRING.

STRING"

NULL

A

PAIR

OF

STRING

POINTERS

WHOSE

CHARACTER

ADDHESSES

ARE

*APPENDIX

B*

DATE:

69/05/31

DEFINITIONSa

APPENDIX

B

*RANDOM

FILES*

CP=CURSOR

POSI

TI

ON.

mE

ADDRESS

OF

THE

WORD

OR

BLOCK

TO

BE

READ

OR

WRITTEN.

THE

LOWEST

POSSIBLE

CHARACTER

ADDRESS

ISO.

mE

HI

G1EST

IS

14B6-1.

CPTOP=ADDRESS

OF

HIGHEST

LOCATION

WRITTEN.

OPENING

RANDOM

FILES:

I

USE

NORMAL

OPEN FILE

BRS·S.

THE

HI

Gi

ORDER

BITS

OF

THE

A

REGISTER

CONTAIN

PRIVILEGE

NUMBER

BIT

PO

0

PI

1

P2

2

P3

3

P4

4

THE

RANDOM

FILE

PRIVILEGE

BITS.

OPTION

o

USER

MAY

EFFECTIVELY

EXECUTE

THE

SCP

SYSPOP.

o

P5

5 USER

MAY

ERASE

INFORMATION

FROM

A

FILE.

(OUTPUT

ONLY)

P6

6

USER

MAY

SET

A

FILE

TO

WRITE

MODE.

(OUTPUT

ONLY)

P7

7 USER

MAY

SET A FILE

TO

READ

MODE.

IF

ALL

BITS

ARE

O.

TRE

ERS

WILL

SET

THE

APPROPRIATE OPTIONS.

CLOSING

RANDOM

FILES:

USE

NORMAL

CLOSE

FILE

BRS'S.

IF

THE

FILE

IS

CLOSED

WHEN

IN

WRITE

MODE

..

ALL

INFORMATION

FOLLOWING

THE

CURRENT

CP

IS

ERASED.

IF

THE

FILE

IS

CLOSED

WHEN

IN

READ

MODE

..

ALL

THE

FILE

INFORMATION,

INCLUDING

UPDATES

AND

ERASURES,

IS

SAVED.

FILE SYSPOPSt

WIO

-

READ

OR

WRITE

ONE

WORD

ON

A

FILE.

CIa

-

BEAD

OR

wnITE

ONE

CHARACTER

ON

A

FILE.

BIO -

READ

OR

WRITE

A

BLOCK

OF

WORDS

ON

A

FILE.

RCP

-READ

CURSOR

POSITION

SCP -SET

CURSOR

POSITION.

peE

-POSITION

CURSOR

AND

ERASE.

SSP -

SET

PHYSICAL

SIZE

LIMIT.

RSP

-

READ

PHYSICAL

SIZE,

SIZE

LIMIT

AND

ADDRESS

OF

HIGHEST

LOCATION

WRITTEN.

FILE SIZE RESTRICTIONSs

FILE

DATA

IS

STORED

ON

THE

DISC IN

14008

CHARACTER

BLOCKS

AND

THE

CtJRSOR

POSITION

ASSOCIATED

WInt

'mE

BEGINNING

OF

ANY

DATA

BLOCK

IS

A

MULTIPLE

OF

1400B.

THE

MONITOR

DOES

NOT

WRITE

DATA

BLOCKS

THAT

ARE

ALL.

ZERO;

HENCE

.. A

FILE

THAT

COVERS

A

LARGE

RANGE

OF

CURSOR

POSITIONS

MAY

GRAB

LESS DISC

SPACE

THAN

A

SMALL

FILE

THAT

IS

DENSELY

PACKED

WITH

INFORMATION.

EACH

FILE

HAS

A

MINIMUM

OVERHEAD

OF

1400B

CHARACTERS

TO

MAP

EACH

FOUR

PAGES

OF

NON-ZERO

FILE

DATA.

THE

DETAILS

-i,P-

OF

TIiE

MAPPING OVERHEAD ARE

COMPLICATED

AND

ARE A F'UNCTION

OF

THE

DATA.

EACH

FILE

THAT

IS

OPENED

FOR

OUTPUT

IS

ASSIGNED

A

PHYSICAL

FILE

SIZE

QUANTUM

TO

LIMIT

THE

AMOUNT

OF

ADDITIONAL

DISC

SPACE

ntAT

TIiE

USER

MAY

GF..AB

BEFORE

CLOSING

THE

FILE.

THIS

QUANTUM~

1~3641000B

CHARACTERSI

IS

REFRESHED

EVERY

TIME

THE

FILE I S

OPENED

REGARDLESS

OF

THE

CURRENT

SIZE.

1;3641000B

CHARACTERS

ARE

ABOUT

EQUAL

TO

ABOUT

60D

PAGES

OF

DATA.

IF

A FILE

QUANTUM

IS

EXCEEDEDI

AN

INSTRUCTION

TRAP

IS

CAUSED.

*APPENDIX

c*

DATE:

69/11/25

APPENDIX

C

OF

CODE

FLAGS

FOB

BES'S

1021

1031

105

AND

106:

00=

THE

FOLLOWING'RECOHD

WAS

READ

OR

WRITTEN

CORRECTLY.

01=

FOLLOWING

RECORD

WAS

IN

ERROR.

NO

FURTHER

TAPE

COMMANDS

WERE

ISSUED.

02=

END

OF

FILE.

NO

MORE

READING. THE PREVIOUS RECCED

WAS

THE LAST.

03=

LAST

TAPE

RECORD

DUE

TO

LACK

OF

CORE

SPACE.

NO

MORE

RECORDS.

FOLLOWING

RECORD

MAY

HAVE

BEEN

TRUNCATED.

04c

FOLLOWING

RECORD

WAS

TRUNCATED

DUE

TO

OVER

RUN

OF

3 SEC.

TIME

LIMIT.

05=

NO

MORE

RECORDS

DUE

TO

REACHING

SPECIFIED

RECORD

COUNT.

THE

FOLLOWING

RECORD

IS

THE

LAST.

06=

END

OF

TAPE.

NO

MORE

READING.

THE

WAS

THE

LAST.

07=

TAPE

NOT

READY.

NO

MORE

READING.

OR

PRINTER

NOT

READY.

10=

PAGE

BOUNDARY

ERROR

ON

WRI

TE.

11=

TAPE

WRITE

PROTECTED

12=

BEGINNING

OF

TAPE.

NO

WRITE.

13=

DEVICE

NO

LONGER

ASSIGNED.

14=

RUBOUT

.APPENDIX

D*

DATE:

69/11/11

APPENDIX

D

ERROR

DESCRIPTION

OF

ERROR

NO.

o

NO

REPORTED

1 FILE

BUSY

2

TOO

MANY

FILES

OPEN

3

81

T MAP NOT

SET

4

INPUT-OUTPUT

ERROR

RECEIVED

FROM

DISC

STORAGE

UNIT

5 DISC

STORAGE

UNIT

FULL.

9

SET

CURSOR post

TI

ON

ERROR

ON

APPEND

ONLY

Fl

LE

10

FILE

NAME

NOT

IN FILE

DIRECTORY

11

ILLEGAL

POSITION IN

FILE

NAME

OF

A FILE

NAME

TERMINATING

CHARACTER

(GENERALLY BLANKI

COMMAI

OR

SOIl-COLON)

AS FIRST

CHARACTER.

12

UNE:<PECTED

END

OF

INPUT FI

LE

NAME

5TRI N

G.

13 FILE

NAME

STRING POINTERS

INVALID

OR

INDICATE

MORE

THAN

75

CHARACTEBS.

14

NO

FILE

NAME

PRECEEDING

COMMENT

PORTION

(DASH)

15

END

OF

FILE

NAME

STRING

DISCOVERED

IN

PROTECTED

PORTION

OF

STRING

SUCH

AS

BETWEEN

SLASHES

16

CARRIAGE-RETURN

FOUND

IN

PROTECTED

PORTION

OF

FILE

NAME

STRING

17 LINE-FEED

FOUND

IN

PROTECTED

PORTION

OF

FILE

NAME

STRING

18

ADDITIONAL

CHARACTER

FOUND

AFTER

SECOND

FULL

QUOTE

OF

LIBRARY

FILE

NAME

19

ILLEGAL

CHARACTER

IN

UNPROTECTED

PORTION

OF

FILE

NAME

SUALLY

A

PUNCTUATION

MARK

20

ILLEGAL

CHARACTER

FOUND

IMMEDIATELY

AFTER

HI

GlT-

PARENTHESIS

ON

PUBLIC

FILE.

21

5TRI

N G

ENDS

ON

PUBLI

C FI

LE

RI

Gil

PARENTHESI

S

22

FILE

NAME

AND

COMMENT

TOTAL

MORE

THAN

75

CHARACTERS.

23

INVALID

PUBLIC

FILE USER

NAME

OR

ACCOUNT

NUMBER

24

PROTECTED

FILE

(DECLARED

NOT

READABLE

OR

WRITABLE)

25

OLD

FILE

OR

NEW

FILE

MESSAGE

NOT

CONFIRMED

WITH

CARRIAGE

RETURN

OR

LINE

FEED

26

ATTEMPT

TO

ADDRESS

LIBRARY

FILE

FOR

OUTPUT

21

INVALID

PARAMETm

FOR

BRS

16

..

19

..

ETC.

(A

REGISTER)

28

FILE

TYPE

WRONG

(USUALLY

FOR

TELETYPE)

29

INVALID

OR

BAD

FILE

FOR

OUTPUT

30

FI

LE

DI

RECTORY

GROUP BECAME BUSY

DUB

I N G

OPERATION

31

GARBAGE

GROUP

POINTER

IN FILE

DIRECTORY

32

NUMBER

OF

FILES

QUOTA

EXCEEDED

33

ATTD1PT

TO

OPEN

"INIT-'

FILE

FOR

OUTPUT.

34 FILE

DIRECTORY

GROUP

CONFLI

CT

BETWEEN

TWO

USERS

35

SAME

AS

ERROR

NOe

27

36

ATTEMPT

TO

OPEN

PROPRIETARY

FILE

FOR

INPUT.

37

FILE

NOT

PRIVATE

WRITABLE

38

FILE

NOT PUB;'I C

WRI

TABLE

39

FI

LE

NOT

PHI

VATE

READABLE

40

NO

INDEX

BLOCK

POINTER

(NO

DATA)

IN FILE

DIRECTORY

41

INVALID

OR

BAD

FILE

FOR

INPUT.

42

LIBRARY

FILE

NAME

USED

ILLEGALLY

43

YOU

USED

THE

PUBLIC

FILE

OPTION

ON

A

FILE

THAT

IS

NOT

PUBLIC

44

UNEXPECTED

ERROR

FROM

MONITOR

ON

FILE

SYSPOPS

45

FILE

DECLARED

READ

ONLY

46

GARBAGE

IN

FI

LE

DI

RECTORY

47

ATTEMPT

TO

ADDRESS

A FILE

ACROSS

ACCOUNT

BOUNDARIES

ILLEGALY

48

FILE

DIRECTORY

NOT

ACCOUNT

SHARABLE

50

SAME AS ERROR

NO.

27

51

FILE

DIRECTORY

UNASSI

~ED

(THE

F.D.

(EOUP

IS

ALL

ZEROS)

52

END

OF

F.D.

CHAIN

WITHOUT

FINDING

FILE.

53

FILE

DIRECTORY

GROUP

BEING

CHANGED

BY

ANOTHER

USER.

54

DUMP

FILE

MAY

NOT

BE

CREATED

BY

USER

PROGRAM.

61

FILE

TYPE

NOT

"GO"

62

ATTEMPT

TO

CALL

PREMIUM

CHARGE

PROGRAM

ILLEGALLY

63

INVALID

CONFIRMING

CHARACTER

64

EXEC COMMAND

USED

WI

THOUT

PROPER

STATUS

65

IN!T

FLAG

ATTACHED

TO

FILE

DIR.

BUT

NOT

TO

ANY

FILE.

66

SYSTEM

PARAMETERS

ASSOCIATED

WITH

YOU

HAVE

BEEN

CLOBBERED.

67

SUB-SYSTD4

NOT

CURRENTLY

AVAILABLE.

68

NO

SUB-SYSTEM

OR

GOTO

PROGRAM

I S CURRENTLY

ASS!

a.JED

TO

YOU

69

TROUBLE

WITH

FILE

SUCH

AS: FILE SIZE

DOES

NOT

AGREE

WITH

HE

STAHT

AND

END

LOCATIONS

OF

THE

GO

FILE.

(FILE

EMPTY?)

-7'-

70

NO

STARTING

ADDRESS

FOR

GOTO

PROGRAM

71

DUMP

FILE

NOT

COMPATIBLE

WITH

CURRENT

SYSTEM

72

APPARENT

DI

SC

ERROR

73

INVALID

SEPARATER

BETWEEN

PARAMETERS

FOR

AN

EXEC

COMMAND

74

I

NVALI

D

PARAMETERS

FOR

AN

EXEC

COMMAND

75

MUST

BE

LOGGED

INTO

DIRECTORY

TO

USE

THIS

COMMAND.

76

UNABLE

TO

LOCATE

A FILE

AT

THE

SPECIFIED POSITION IN

DIRECTORY

77

IMPROPER

RESPONSE.

PROPER

RESPONSES

AREs

Y

FOR

YES~

N

FOR

NO~

CARRIAGE

RETURN

OR

LINE

FEED

78

SAME

AS

ERROR

NO.

23

79

FILE

DIRECTORY

CONTROLS

SET

WRONG

80

INSUFFICIENT

USER

MEMORY

FOR

MAIL

81

SAME AS

ERROR

NO. 79

82

INVALID

SUB-SYSTEM

N~~E

83 FILE

TYPE

WRONG

-

NOT

DUMP

FILE

84

SAME

AS

ERROR

NO. 1

*APPENDIX

E*

DATE:

69/12/02

APPENDIX

E

THE

FLOATING POINT SYSPOP'S

AND

BRS'S

USE

A

FORMAT

WORD

IN

THE

X REGISTER. THIS

FORMAT

MUST

BE

"FREE

FORM".

TO

DO

501

CLEAR

x.

EXAMPLEI

INPUT

CLX

FREE

FORM

I

NPUT

FORMAT

BRS

52

INPUt

FLOAT

I N G

NUMBER

NOTES:

ON

INPUT

THE

D FIELD

IS

OVERRIDDEN

BY

THE

PRESENCE

OF

A

DECIMAL

POINT.

IF

A

DECIMAL

POINT

AND/OR

E

ARE

PRESENT~

ANY

FORM

OF

A

NUMBER

IS

ACCEPTABLE

TO

AN'{

INPUT

FORMAT.

ILLEGAL

CHARACTERS

APPEARING

ANYWHERE

IN

THE

FIELD

MAY

BE

I

QJORED

BY

SETTING

BI

T

19.

ALL

BLANKS

WILL

BE

CONVERTED

TO

ZERO.

THE

MAXIMUM

ALLOWABLE

INPUT

DIGITS =

12.

IF

MORE

THAN

12

ARE

USED~

ONLY

THE

SIGJIFICANT

12

WILL

BE

USED.

INSIttiIFICANT

LEADING

OR

TBAILING

ZEROES

WILL

BE

IGNORED.

ERROR

CODES:

ALL

ERROR

CODES

'WILL

BE

RETURNED

IN

THE

X

REGI

STER.

OUTPUT

x = 0

x = 1

DESCRIPTION

NO

ERROR

DETECTED.

NUMBER

OF

DECIMAL

DIGITS

AFTER

DECIMAL

POINT

EXCEEDS

12

FOR

SINGLE

PRECISION

AND

18

FOR

EXTENDED

PRECISION

ON

FORMATTED

INPUT.

x = 2

x = 3

x = 4

x = 5

x = 6

FIELD

TOO

SHORT

FOR

E

FORMAT

ON

OUTPUT.

OVERFLOW

ACTION WILL

BE

TAKEN

DEPENDING

ON

mE

VALUE

OF

BIT 15

OF

THE

FORMAT.

INPUT

NUMBER

EXCEEDS

MAXIMUM

ALOWABLE

BOUNDS.

FIELD

TOO

SHORT

FOR

F

OR

I

FORMAT

ON

OUTPUT.

OVERFLOW

ACTION WILL BE

TAKEN

DEPENDING

ON

THE

VALUE

OF

BIT 15

OF

THE

FORMAT

WORD.

AN

E

FORMAT

WAS

SPECIFIED

FOR

INPUT

BUT

THE

INPUT

STRING

DOES

NOT

CONTAIN

AN

liE·'

OR

.'.".

THE

NUMBER

WILL

BE

CONVERTED USING

AN

EQUIVALNET

F

FORMAT.

AN

ILLEGAL

CHARACTER

WAS

ENCOUNTERED

IN

THE

INPUT

SCAN. THE CHARACTER

WAS

I QtlORED.

BRS_Reference_Dec69 BRS Reference Dec69

BRS_Reference_Dec69 BRS_Reference_Dec69

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