STATUS WORDS

HIGH-SPEED PRINTER

FUNCTION WORDS

PRINT BUFFER: 26 WDS; USE STOP CODE IF

<

128 CHAR/LINE

STATUS WORDS

PRINTER INTERRUPT CODE REX STATUSCODE-_ Ao5-00 CONSOLE

TYPEOUT 20 SEQUENCE OPERATION ERROO 00 OP ERA TION NOT COMPL ElE NCtlE

30 CHARACTER COUNT ERROR 01 OPERATION COMPLETE NONE

40 NORMAL COMPL ET ION 07 ILLEGAL ERROR MSG 231 P

54 ILLEGAL UNIT SELECT 10 ILLEGAL FUNCTION MSG 231 P

74 INTERLOCK ERROR 06 INTERLOCK FAULT MSG 230 P

SO ILLEGAL FUNCTION 11 ILLEGAL UNIT SELECT MSG 231 P

12 PRIIH ERROR MSG 231 P

PUNCHED CARDS

I

FC

I

129 24 123

₀₀₁ I

CARD READER CARD PUNCH

SPURT CODE FUNCTiON CODE SP URT CODE FUNeT iON

03 RMODEGFD Condition: Caid to Fieldata 62172 13 PMODEeFD Condition- Fie!doto to Card 04RMODE-CBIN Condition: Column Binary Image 63:73 14 PMODE eCBIN Condition: Column Binary Image os}RMODEeRBIH Condition: Row Binary Image 64/74 15 PMODEeRBIN Condition: Row Binary Image 00 STACK 1 Select Stacker 1 60.170 11 PU NCH Punch Card, Stacker 0 . 015-l'A€K 2 5e1ect Stacker 2 6-1/71· . ..]2. ·PUNCHS Punch Card, Stacker 1

02 READNT Read"l Card; No Transfer 43/53 06 READ Transfer 1 Card; Trip Fill 42.'52

07 TRANS Transfer 1 Cord 4]/51

10jMREAD' Read, Transfer XX Cords 42/52

"D()'Signote No. of Cords tobe.reod in bits 14-09 of Function Word. (Mo!(im~: 63 Cords)

CARD SUBSYSTEM iNTERRUPT CODES

20

SEQUENCE OPERATION ERROR 00 OPERATION NOT COMPLETE

30 CHARACTER COUNT ERROR 01 OPERATION COMPLETE

CONSOLE TYPEOUT NONE NONE

CODE 04/14 I 05/15 06/16 02/12 03/13

40 NORMAL FUNCTION TERMINATION 06 INTERLOCK FAULT MSG 2601270 P

50 ILLEGAL FUI\CTION 07 VERIFY ERROR MSG 263/273 P

54 CHARACTER VERIFY ERROR 10 ILLEGAL CHARACTER NONE

60 INAPPROPRIATE FUNCTION 11 ILLEGAL FUNCTION MSG 261.'271 P

70 ILLEGAL CHARACTER 12 INAPPROPRIATE OPERATION MSG 264 PSS •

74 INTERLOCK ERROR 13 INCORRECT PARAMETER MSG 262/272 P

~Typeoul oc!;urs only on "Lote Stocker Selection Error"

MAGNETIC TAPE FUNCTION CODES

UNISERVOIIA I

FUNCTION WORD

UNISERVO IIIC

I _Lj2~9

_{___} Fe _{2='JI __} !

_Lll~4Lj

!CM

I

_{__}

_Ltl~1

! __________

SEL~~~

^B:T

~0~Ol

^!

i ¹

LI2_9 ____ ^{FC 2',} -L. ____________ ^II -Lil_I ____

^! S~~~~T

⁰⁰

~,

^I"

FUNCT!ON WORD

SPURT COOE I OC MNEM

REWIND

RWI

SEARCHF

PWRITE

WR!TE

10 READF

13 MOVEB

FUNCTION

!

Rewind Tope I Rewind and Interlock

Search·Rea1 Backward

Search-Read Forward

Write At 125CPI

Write At 250CPI

I

Read Forward 1 Block

Read Backward 1 Block FUNC COOE 20,

30

66;

'76 46'56

01;

11

62/

72

! Move Forward N Blocks 42/52

I

Move Backward N Blocks. 62/72

I

2

i

!&LOCATEB 1 Search Backward, No Reed: 66/79 3 ·LOCATEF Search Forward, No Read

I

46/56

CM: COMP.l.TIBLE ! 23

FC: ~~~~T(~MN= ~~DE ^{, - I _ _ _ _} T:..::e<:..::m'~·"a:..::te _ _ _ - l -1..,:33=-1 DC:

~~~T

OPERATION! Bootstrap

!

40/50

"BUFFER WD=O "--_-=::::::,::!:..._--,---=.:..J

UNISERVO iliA

SPURT COot OC MNEM

FUNCT ION wORD

FUNCTION 1

UNIT I 3^{SELECT 1}

. a

FUNC COot 20

Rewind Tape 30

RWI Rewind and Interlock 21

13 MOVEF

14

10 READF

12 READB SEARCHF

SEARCHB

' 2 LOCATEF

I 2 .SEARCHF

·SEARCHB

WRITE ENDFILE

WRITEO

Move Forward N Blocks

Move Backword N Blocks

Read Forward 1 Block

Read Bock ward 1 Btock

Setlrch-Read Forward 41,

'51 61'71

41 51 61

! 71 45,

'55

Seo,ch Facwc,d, No R""d

145/

55 65, Search Backward, No Read '75

46 Mask Search Forward, Read 56

66 Mask Search Backward,Read 76

Oi Write 1 Block

Write E:1d-Of-File 0313

Contingency Write 42 Reposltion Read Forward 52

•

~f =gOSsk~;:r:o;:hs~~~i'be: I

Reposition Read Backward

!

^{62 ·72}

~.r!",m.d.

i

Bootstrap

1 Request Cantrol

Demond Control

r I

Release Control

23

33

40 50 26,

36 25

35

SPURT CODE OC MNEM 10 REWIND

13 MOVEB

14 MOVEF

12 BACKFILE

10

ILOBIN HIBIN

12 LOBCD

13

^HIBCD

WRITE

16

IREAD

I

07 EHDFILE

I I

1 1

FUNCTION

Rewind and Interlock

Move Backward N Blocks

Move Forward N Blocks

Backspace File

Condition: Binary, Low

Condition: Binary, High FUNC CODE 20i/301

Condition: BCD, Law

,

!

Condition: BCD, Higl"l

i I

^Read,

I !

BIN, 556 460/560 BIN, 200 470/570 BCD, 556 1462/562 BCD, 200 14721572

BIN, 556 BIN, 200

1020/120 i030/130 BCD, 556

1 0221122 200

i

^032/132

BCD,

SIN, 556 1

1420,520 BIN, 200 430/530 BCD, 556 \422/522 BCD, 200 432/532

I

556 1023/123

I

Write End-Of-File 200 1033/133 Backspace 1 Block

1=::1

MAGNETiC TAPE SUBSYSTEM iNTERRUPT CODES

UNISERVO IIA UNISERVO lilA UNISERVO IIIC

74 ' iNTERLOCK

, I

i ^J',

30 CHAR. COUNT, CHAN. SYNCH. 64 FUNCTION TERMINATED (ABN) 34 ILLEGAL FUNCTION

50' ILLEGAL FUNCTION

124

REQUESTED UNiT REWINDING I 50 ILLEGAL FUNCTION 74 INTERLOCK 54 END OF FILE

54 UN!T SELECT ERROR 14 OTHER eLl HAS CONT.I:WL

I

SO SEQUENCE

ER.~O.~,

CONTROL 10 REQUESTED UNIT REWINDING 10 REQUESTED UNIT REWINDING 74 INTERLOCK

24 SEQ. ERROR, CONTROL UNIT 30 TAPE UNIT FAULT 44 REPEAT OPERATION

34 END OF FILE 34 END OF FILE 70 ABNORMAL FRAME COUNT

70 CHAR. COUNT, CCtHROL UNIT 60 REPEAT OPERATION (WRITE) 60 END OF TAPE

60 PARiTY ERROR 54 I IMPROPERLY WRiTTEN BLOCK I 30 ICHAR. COUNT, CHAN. SYNCH

44 END OF TAPE 60 REPEAT OPERATION 20 SEQ. ERROR, CHAN, SYNCH.

20 SEQ. ERRCI<, CHAN. SYNCH. 70 ABNORMAL FRAME COUNT -40 NORMAL COOPLETION

40

NORMAL COMPLET ION

i

441 TAPE MARKER DETECTED

140

i

NORMAL COOPLETION

REX TRANSLA TED CONSOL E TYP E OUT STATUS CODES A05-00 IIA lilA IIIC

o

OPERATION NOT COMPLETE

I OPERATION COMPLETE 2 NOT USED

3 UNISERVO REWINDING 4 END OF FILE 5 END OF TAPE

6 INTERLOCK MSG 200 MSG 210 MSG 220 7 SUBSYST EM F AUL T MSG 201 MSG 211 MSG 221 10 iNCORRECT PARAMETER MSG 212 MSG 222 10 READIWRITE ERROR MSG 201

11 SEQUENCE "RROR MSG 201 12 INCORRECT PARAMETER MSG 202

SPURT I/O PACKET FORMAT

I

WORD FORMAT

I

ENTRY

SILRJP oU (140)

64120 00140

I

1 FUNCTION WORD (VARIABLE FORMAT)"

2 H

24123 C 20\19 P

~

^{29 15 14}

I

³

1103

18117 b

29 15 14

"

^{4 110 21120 k} 18117 b

I ""

^{29 1514}

""

129

110

I

^k

I

^b

I

. 2120 1817 1514

I

~. ~;:~P~:EL::;::~~;N PACKET

b: ANY S·REGISTER FROM 6,-8 6 (B,-EXCLUDED)

I

XXXX::. ADDRESS OF BUFFER CONTROL WORD SUBJECT

I

lvvvvv TO MODfFICATION (XXXXX+~.,) ADDRESS OF IDENTIFIER WORD, IF APPLICABLE, SUBJECT TO MODIFICATION (YYYYY

+

bnl &

ZZZZZ ~~~NRSESS OF MASK WORD ON APPLICABLE FUNe-

TAPE 129

10 12

i

'3 ¹⁴ OC

I

PERIPHERAL

I ^~~:FILE

UNISERVO IIA 1

PT READER PRINTER

I

CARD READER CARD PUNCH UNISERVO IIiC PT PUNCH UNISERVO IliA

i ~~~~~.~'~~

^T!ON

1

00000

00 XXXXX

00 YYYYY

00

zzzzz

00

ERROR RECOVERY

REGISTER CONTENTS

STATUS WORD QU .. 0 REQUEST ADDReSS QL CKSTAT+ 1 ADDRESS

oaaaa +! ::: B3 & 6 4 aoaaa

+

2 ::: B5 & B6

CARD

129

OC li4 MUL TI·READ

091

DRUM DISC

FAST

129

^OC

UNfVAC@490 REAL-TIME SYSTEM

Reference Card

I CHARACTER CODE

FIELDATA

_I

BAUDOT

CONSOLE T/W HSP 00 COL. CARD

000000 (NO ACTION) NP 7-8 00000

000001 l NP 12-5-8 11011

000010 % NP 11-5-8 11111

000011 LINE FEED t 12-7-8 00010

000100 CAR RET NP 11-7-8 01000

000101 SPACE NP BLANK 00100

000110 A A 12-1 LOO011

000111 B B 12-2 L 11001

001000 C C 12-3 L01110

I ^{001001 0 D 12-4 L01001}

1 001010 001011 E F i ^E F I ^12-5 12-6 ^{1 LOOOOI} L01101 I

1

001100 G

₁

G I ^12-7 I ^{L 11010}

I

001101

H

I

H I ^12-8 I

Ll0100

001110 I I 12-9 LOO110

001111 J J

i

11-1

_I

LOlOll

010000 K K

I

11-2 I L011l1

010001 L

I

L I

^I

11-3 I ^LlOOlO

I

010010 M M

I

11-4

I

L 11100

010011 N N 11-5 L01100

010100 0 I ^{0 11-6 L 11000}

I ⁰¹⁰¹⁰¹ 010110

Q

^P I

Q

^P I ^11-7 11-8 I ^LlOll0 L1 0111 I

010111 R R 11-9 L01010

011000 S S 0-2 LOO101

011001 T T 0-3 L 10000

011010 U U 0-4 L00111

01lO11 V V 0-5 Ll1110

011100 W W 0-6 LlOOll

011101 X X 0-7 Llll01

011110 y y 0-8 LlOlOl

011111 Z Z 0-9 LlOO01

100000 ) ) 12-4-8 U10010

100001

^-

- 11 UOO011

100010 .,. _{+ 12 U11010}

I

100011 <

I

NP 12-6-8 NO CODE

100100 = NP 3-8 NO CODE

100101 > NP 6-8 NO CODE

1

100110 -

I

&

2-8 NO CODE

100111 $ $ 11-3-8 U01001

101000 . 11-4-8 NO CODE

101001 ~ . ^{( 0-4-8 U01111}

101010 I % 0-5-8 U10001

101011

:

5-8 UOl110

101100

?

NP 12-0 UllOOl

101101

!

NP 11-0 U01101

101110 COMMA COMMA 0-3-8 U01100

101111 STOP NP 0-6-8 NO CODE

110000 0 0 0 U10110

110001 1 1 1 U10111

110010 2 2 2 UlO011

110011 3 3 3 UOOOOl

110100 4 4 4 U01010

110101 5

5

5 U10000

110110 6 6 6 U10101

110111 7 7 7 UOO111

111000 8 8 8 UOOllO

111001 9 9 9

UllOOO

111010 APOSTROPHE:

APOS1ROPHE

4-8 U01011

111011

;

11-6-8 Ullll0

111100

^I

0-1 U11101

111101 12-3-8 Ullloo

111110 D NP 0-7-8 NO CODE

111111 !\ STOP 0-2-8 NO CODE

UT 2451 REV. 3

INSTRUCTION REPERTOIRE

INSTRUCTION OPERATION

Shift AQ right by '(05-00, Sign fill Shift Q left by YOS-OO, circularly Sh;{; A ~ef; L,. '{OS.OQ, ':';i.: ... k;,'ly Shift AQ left by YOS-OO, circularly A:Y or Q:Y 01' AQ:Y; ond sense i (A)-L (Y (Q)); ,en,e i A and Q Unchanged

Release interrupt lockout Release interrupt lockout and V-jump Set in1errupt lockout Set interrupt lockout and Y-retum jump Ifenoctive, jump to Y

Activate buffer on channe!!"

Activate buffer on channel n

Terminate buffer on channel n

Y - Cni-fi;:OOl1 Activotebuffer onchonnel n Activate buffer on channel n

Terminate buffer on chonnel n

NORMAL j-DESIGNATOR SPECIAL ADDRESSES

j=O NEXT INSTRUCTION 00000 FAUL T, MS TIMEOUT.INTERRUPT

SKIP j = 1 Skip NI 00017 to CLOCK INCREMENT

QPOS i=2 Skip NI if (Q) Pos. 00020-00035 EXTERNAL INTERRUPT QHEG i=3 Skip NI if (Q) Neg. 00040-00055 INPUT MONITOR INTERRUPT AZERO i=4 Skip NI if (A) = 0 00060-00075 OUTPUT MONITOR INTERRUPT AHOT i = 5 Skip NI if (A) ;t. 0 00 1 00-00115 INPUT BUFFER Ca-lTROL APOS j=6 Skip NI if (A) Pos. 00120-00135 OUTPUT BUFFER CONTROL AHEG j=7 Skip NI if (A) Neg. 00036 to CLOCK INTERRUPT

SPECIAL I-DESIGNATOR INTERPRETATION

JPIRJP JP(60)IRJP(64)

No skip No skip No skip No skip HE: y=y Always jump RIL/SIL ReleoselSet

Interlock 1 SKIP Always skip Always SKIP Always SKIP Always NE,y¥l KEY 1 Jump

Key 1

RILJP/SILRJP Release~t Interlock Jump

skip skip skip

2 YLESS Y:S Q APOS Skip (A) EVEN Skip (A) NOOF Skip, no BACK HE: y=y-l KEY 2 Jump QPOS Jump (Q) Pos.

Pos. O'o'erflow Key 2

3 YMORE Y

>

Q "NEG Skip (A) ODD Skip (A) OF Skip, AooB NE: y;y+Bb KEY 3 Jump QHEG Jump (Q) N89'

Nog odd overflow Key 3

4 YIN Q? Y

>

A QZERO Sk;p (Ql AZERO Sk;p (A) AZERO Sk;p (A) R NE: y::y+(B6). STOP Always "ZERO

"""

Jump (A)::O

=0 =0 =0

5 rOUT Q< YorY:S A QNOT Sk;p (Q) ANOT Skip (A) AllOT Sk;p(A)

=0 ;to

.0

6·

YLESS Y ,;; A QPOS Sk;p(Q) APOS Skip (Al APOS Skip (A)

Po, Pos. Pos.

QNEG Skip(Q) AIIEG Skip (A) ANEG Skip (A)

No •. Neg. Neg.

ADVR NE, y=y+ 1+(86)-STOPS Stop Key 5 BACKRNE, y=y-1t(l\5~ STOP6 Stop

K.,. 6 iAOOSR NE,y¥Bt(86) STOP1 Stop

Key 7 -(B6) Increment if RPL CLASS

ANOT Jump(A)¢O

Jump (A) Pos.

Jump (Al Neg.

JUMP ADDRESS k;;;O,4 Y=y k= 1,3,5 Y = (YL) '=2.6 Y = (YU) Y= (ALl

OPERAND INTERPRETATION-NORMAL k-DESIGNATOR

CPL IARlTtil.iE~

, ^MEMORY -

CPU, ~

ARIT~

~ ,

MEMORY

LEGEND:

W: Whole Word l: Lower Half U: Upper Ha If X: Sign Extension CPo Complement

A: A-Register Q: Q-Regisler Y: Operand N!: Next Instruction'

NOle: All portial·word transfers are 15-bit halves.

I

129

CLEAR

I

Clear memory al"ea

I

VO: Number of Words

--r

VI: Start Address ENTRY

EXIT \ EXIt Subroutine

1

^Yo: Jump condition

FD

i

literal _____ FIELDATA

I

VO: Number of Words occupied

I

Vl: Literai FORM.TEXT

I

Form,

storetext~Buffer I

VO: Buffer

I

V1: Initcharacter )V2: Text MOVE

I

Move, memory to memory

1

^Yo: Number of Words

I

Vl: Origin

I

V2: Destination PUT

I

Store 1 word

I

Yo: Word

I

Yl: Destination

RESERVE

i

Reserve memory block

1

^Yo: Number of Words reserved T·TAG 'I Tag channel and unit

I

VO: Channel/Group

l

V1: ^Unit U·TAG ! Tog upper wOI"d

I

YO: Upper tag

I

VI: Lower tog/constant CKSTAT

D·TAG

! Check stolu,

I

^{Vn' I/O}

L~~~II

Vr

E!,~ST~~l!I'J.~2

EAS/TAKEOVER

1 Define drum area

lVa:

Drum area name

+

increment TYPEC i Type contents

I

^Va: Data to be typed TYPET : Type text

I

VO: Text and printer commands

SEGMENT , Segment programs

1-

YO: 1st Lobel, Segment 1

I

V1: Segment 2 DRUM·AREA Reserve drum area

I

VO: Drum system

I Vr

Area name

1

V2: Length w EQUALS

~ MEANS

....

~

_ASSIGN

j

~

^FACIL COMMENT

i

Equate unknown-known [1: Unknown to"g

I

^VO: Known Label/tog

! Sub channel number for nome

I

VO: Chmnel number

I

DeclOf"e channel grouping

I

YO: Unit names and numbers

!

Declare channels, units, fixed/relocatable, number of units : Declarative function

Tva :

{Notation}

DEF·AREA

!

Identify area

I

YO: Area name

I

Vr Initial address

I

_{V2 :} Number of words S·TAG

i

Program iinkage

·1

VO: Upper t a g ! " Y1: Lower tog

CORE·IMAGE

'"

z DRUM·IMAGE

!

TEST·IMAGE DUMP·REG DUMP·AREA

j Core area mirror

I

VO: Areo nome

I

Vl: Initial address

I

V2: Key set

I

Drum area mirror

I

^Va: Area nome -J Vl: Initial address

I

V2: Key set

I

Compare image

1

VO' Area nome

T

^{VI: Key 'et}

T

, Print out ~, ^Q, ~.s,

I

_VO' Key 'et

I

Print out non-zero words

I

YO: A.rea nome

I

V1: Key set REX

I

STOPRUN!TAKEOVER/TERMRUN/EXOtANGE

INPUT·OUTPUT OPERATOR (SPURT)

CARDePUNCH_ (BCW)

I

TYPEC - (ADDRESS)

CARDePUNCHS_ (BCW) TYPET -(TEXT)

CARD_PMODE_FD

i

TYPE -(~). (ADDRESS)

CARDe PMODEeCBIN

i

CTAPEeHIBCD.(NAME) CARDe PMODE eRBIN

CARD e RMODE e FD

I

CTAPEeLOBCD_(NAME)

CARD- RMODEeCBIN CTAPE eHIBIN e(NAME)

CARDe RMODE .RBIN CTAPEeLOBIN_(NAME)

CARD eST ACK I CTAPE_WRITEe(NAME]-(BCW)

CARDeSTACK 2 CTAPEeENDFILEe(NAME)

CARDellEADNT CTAPEeREADe (NAME)e(BCW)

CARDeREAD_ (BCW) CTAPEeSEARCHe (NAME)e (BCW). (lD)

CARD eTRANS e (BCW) CTAPE eREWINDe (NAME]

CAROeMREAD. (")_ (BCW) CTAPE -MOVEB -(NAME]- (N) DRUMe(NAME]eWRITE e (BCW)_ (ADDRESS) CTAPE eMOVEF e (NAME)- eN) CTAPE_BACKFILE e(NAME]

DRUM- (NAME)_R EAO_ (SCW)_ (ADDRESS) CTAPE e RWle(NAME) DRUM e (NAME]eBR EAD - (BCW)(ADDR ESS)

DRUMe (NAME) - LOCA TE - (ADDR ESS)_ (lD)

DRUM-(NAMEJ-BLOCATE-(ADDRESS)- (lD)

:D

MTAPE eWRITE -(NAME)- (BCW) DRUM- (NAME]'SEARCH- (BCW)_ (ADDRESS)- (lD)

MTAPE -READF - (NAME]- (BCW) DRUM- (NAME]- BSEARCH- (BCW)_ (ADDRESS)- (lD) MTAPE eREADB_ (NAME)_(BCW)

MT APE e SEARCHF e (NAME)' (BCW) - (lD) DISC _(NAME]- READ _(BCW]-(ADDR ESS) MTAPE eSEARCHBe (NAME)- (BCW)_ (lD) DISC. (NAME]- WRIT E e(BCW)_ (ADDR ESS) MTAPE' SEARCHF e(NAME].(BCW].(lD].(MASK) DISC e(NAME].SEARCH e(BCW ].(ADDRESS].(S L )e(lD) MTAPE e SEARCHBe(NAME].(BCW].(lD].(MASK) DISCo (NAME].WSEARCHe(BCW:;'(ADDRESSXSLJeOD) MTAPEeRElVlNDe (NAME)

MTAPE eRWle(NAME) MT APE eENDFILE -(NAME) PINe (NAME)_ (LINES/PAGE)e (TOP].(BOT MARGIN)

I

MTAPEeMOVEF e (NAI.E)e (N) P~INTe (NAME)e (BUFF BASE ADD)e (_LINES ADV) MTAPE eMOVEB e (NAME)- (N)

CONSOLE -HOLD ACCEPT

-C.

CHAR].(BUF FER)

CONSOLEeRELEASE LOADe(SEGMENT NAME)

COMPUTER INSTRUCTION WORD FORMAT

FUNCTiON SPECIAL' OPERAND MODiF iER OPERAND/OPERAND ADDRESS INTERPRET

f

_{24 23}

^j

_{21 20}

^k

_{18 17}

⁶

_{15 14}

^y

₀₀

... REGISTER, SKIP/ JUMPi OR REPEAT MODIFICA TION DESIGNATOR

INPUT -OUTPUT INSTRUCTION WORD FORMAT

FC 29

MNEM OC WRITE 0 READ I BREAD 2 LOCATE

I

³

BLOCATE 4 SEAROt S BSEARCH 6

CONTROL WORD AODRESS

K = 0 (00); Y K = 1 (01); YL K= 3 (11); Y

w

... APPLICABLE TO f= 73_76 ONL Y

Buffer Addres,;

(OOlxxt~)L

} xx = 00 for f:: 73, 75 Buffer Addres,; (OOlxxtj)L

~ xx = 20 for f::: 74. 76 Buffer Address (OOlxxtj)W

MAGNETIC DRUM

FUNCTION WORD

BEG INNING DRUM ADDRESS

DRUM FUNCTIONS

DESCR I PT ION

CONTINUOUS WRITE: START AT SPECIFIED ADDRESS CONTINUOUS READ: START AT SPECIFIED ADDRESS BLO<:!:...R.EAD; _ READ TILL EOB; TERMINATE SEARCH: SEARCH TILL FIND; TERMINATE BLOCK SEARCH: SEARCH TILL FIND/EOB; TERMINATE SEARCH·READ: SEARCH TILL FIND, THEN CONT. READ BLOCK SEARCH·READ: SEARCH; FIND; READ TILL EOB

BOOTSTRAP: REFERENCE ADDRESS 00000o TERMINA TE: TERMINA TE OPERATION

STATUS WORDS

FC 02 42 52 45 55 46 56 40/50 23/33

00

00