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DEC-12-FLSB-D

December 1971

30 pages

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Document:	dec-12-flsb-d
Order Number:	DEC-12-FLSB-D
Revision:
Pages:	30
Original Filename:	https://svn.so-much-stuff.com/svn/trunk/pdp8/src/dec/dec-12-fls/dec-12-flsb-d.pdf

OCR Text

DISPLAY

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....
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DEC~12-FLSB-D
FEBRUARY, 1971

(

C )

1971 by Digital Equipment Corporation

The material in this handbook, including but not
limited to instruction times and operating speeds,
is for information purposes and is subject to
change without notice.

The following are trademarks of Digital Equipment
Corporation, Maynard, Massachusetts:

(

DEC
FLIP CHIP
DIGITAL

PDP
FOCAL
COMPUTER LAB

The equipment described herein is covered by patents
and patents pending.

For additional copies order DEC-12-FLSB^D from Program
Library, Digital Equipment Corporation, 146 Main Street,
Price $5.00
Maynard, Massachusetts 01754

{

CONTENTS

Page

INTRODUCTION

ENVIRONMENT

2.1

Hardware

2.2

Core Allocation

CALLING PROCEDURE

FACTOR INTERACTION

INTERNAL DESCRIPTION

5.1

IDORA

5.2

RDORA

5.3

Flow Diagram

5.4

Listing

8
8

DISPLAY

INTRODUCTION

DISPLAY enables a data display facility for those routines

which do not require complex display processing or cannot
sacrifice the core for such a display.

The routine dis-

plays any contiguous section of core via a moving window,

with a cursor and octal read out of cursor positions to
facilitate operator interaction.

ENVIRONMENT

2.1

Hardware

A PDP~12A computer.

2.2

Core Allocation

Any two PDP-8 pages in field 0 except page 0 that are seg-

ment contained, beta registers 0,

and

of the segment,

and any six page 0 locations are the core requirements.

actual binary output resides in one tape block.

The

CALLING PROCEDURE

There are two calls to DISPLAY:

an initial call and a

refresh call, both of which must be in the same PDF- 8 field
as DISPLAY (field

jl)

The function of the initial call is to

set up arguments for the refresh subroutines:

JMS

KIDORA

FIELD
CORE LOCATION

FIELD
CORE LOCATION
Y OFFSET
Y SCALE FACTOR

KIDORA, IDORA

The first four words are two 15-bit addresses that specify
the beginning and end of the data buffer to be displayed,

respectively.

Any contiguous section of core is legal in-

put to IDORA as long as the buffer is at least 1000^ points
long.

The first address must be less than the second.

DIS-

PLAY treats the data buffer as a core ring so that the initial and terminal points are contiguously displayed.

The purpose of words

and

6 is

flexibility in displaying data.^

to allow the calling programs

The fifth word is a Y off-

set and specifies a 12 bit number to be added {2»s
compliment)
to the data before it is displayed;

the sixth word is a SCR

K instruction and indicates the amount of
scaling to be done

prior to display.

IDORA exits to the SCR K location in

PDP-8 mode with the data field set to 0 and the AC =
0.

The refresh call is simply

JMS

KRDORA

KRDORA, RDORA

The refresh call displays 1000^ points, sets
arguments for
the next refresh and returns to the location
following the
call, in PDP-8 mode with the accumulator cleared
and the

data field DF and IF unchanged.

Note that the initial

call to DISPLAY must be to IDORA; RDORA always
refreshes the

buffer specified by the last call to IDORA

^It should be noted that DISPLAY assumes the
data to be in
single word format.

FACTOR INTERACTION

The operator controls the position of the
window with knob

clockwise motion moves the window to the
"right" or
towards the end of the buffer; counter-clockwise,

J2f:

to the

left.

The midpo+nt reading on knob
0 causes the motion

to stop.

Knobs

and

and Sense Switch (SSW) 5 control the cursor

(an intensified dot).

Depending on the setting of SSW

the cursor may either move along the curve
or be displayed

independently.

When SSW 5 = 0, the cursor moves along the

curve and its position is controlled with Knob

^^hen

Knob 1 is turned to its furthermost clockwise
position,

the cursor sits upon the rightmost scope point;
when Knob

is ppsitioned to its furthermost
counter-clockwise position,

the cursor sits on the leftmost scope point;
intervening

knob positions yield intervening cursor
positions.

When SSW5

=1, the cursor is displayed independently of the

curve.

For this case. Knob 1 controls the horizontal
coordinate and Knob 5 the vertical coordinate.
Horizontal displacement of the cursor via Knob 1 is identical
to that described above. When Knob 5 is at its furthermost
clockwise
position, the cursor is displayed at the top
of the scope.
When Knob 5 is at its furthermost
counter-clockwise position,
the cursor is displayed at the
bottom of the scope.

Associated with the cursor are four octal
words displayed in
the top left corner of the scope,
one beneath the

other^

The first two words are the absolute
15-bit core address of
the cursor point.
The third word is the contents
of the displayed core address, i.e., the
actual 12-bit value in the
data buffer of the data word
that corresponds to the cursor
point.
The fourth word is the scope
Y coordinate of the cursor point.
The fourth word is a relative value
and depends
upon the Y scale factor and Y
offset.
If the data had been
scaled to nine bits prior to display,
the fourth word or Y
coordinate would range from
0001 to 1000^, where 0001 corresponds to the bottom of the scope
and 1000 corresponds to
the top.

TO facilitate interaction with
the calling program the four

displayed words described above are
maintained in page 0
and may be accessed after the
refresh return.

TAG

CONTENTS

XCURHI

Fifteen bit address of the point

XCURLO

in memory reference by the
cursor

CORVAL

Contents of memory

YCUR

Relative Y display coordinate

IS refreshed.

agister at the time the display

standard Parameters

The six locations on page 0 can be anywhere and they do not

have to be contiguous.

The standard version of DISPLAY as-

sumes locations 20 - 25; the locations are defined via direct

assignment statements at the end of the DISPLAY source,

YSHFT

XCURHI

YSHFT +

XCURLO

XCURHI +

CORVAL = XCURLO +

CONTAINS Y OFFSET

YCUR - CORVAL +
COUNT

YCUR +

SEE ABOVE

1
1

The following symbols (also defined at the end of the DIS-

PLAY source) may be redefined if the user wishes to use
Knobs other than 0, I, and

WINS.AM ^ SAM 0

CURSAM = SAM 1

FRESAM = SAM 5

As coded, DISPLAY occupies locations 5400 through 5777, with

IDORA = 5400 and RDORA = 5544.

The origin statement at line

10 and/or the PAGE pseudo-op at line 223 may be altered to

relocate part or all of DISPLAY.

(N.B,

if using the page

of the segment containing the beta registers, place the

origin at the fourth location of the page since DISPLAY uses
beta registers 0,1, and 2; i.e.
6

2003; or

4003; or

6003).

Example

If Segments

and

contain 12 bit, unsigned data, the fol-

lowing would display 512 points (as controlled by knob 0)

until a keyboard input is detected:

JMS

KIDORA

/N.B.

PDP-8 MODE

/LOCATION 10 000.

/START OF BUFFER

/LOCATION 13,777 IS

/END OF BUFFER

/VERTICAL COORDINATOR

4000

/377

SCALE

1000
TO

A00

JMS I KRDORA

/400

KSF

/FROM 12 BITS TO

JMP LOOP

/REFRESH SCOPE
/KEY STRUCK

1
9

/NO, CONTINUE DISPLAY

The program might now do some-

thing with the datum indicated
by the cursot*

exit, or

KIDORA, IDORA

/INITIALISE POINTER

KRDORA, RDORA

/REFRESH POINTER

INTERNAL DESCRIPTION

5.1

IDOm

The function of IDORA is to retrieve the arguments from the
initial, call and set them qp for RDORA*
is stored at MINFLD. MINADR,

at MAXFLD, MAXADR.
0)

The lower bound

the upper jDound + 1, is stored

The Y offset is stored at YSHFT (page

and the scale factpap is stored at YSCAL.

5 . 2

RDORA

The function of RDORA is to display 1000^ points relative to
the window knob and a scope starting address and return.

RDORA first reads the horizontal cursor knob and sets it to
a value between -1 and --1000^;

this is the cwrsor count.

RDORA then reads the window knob and updates the initial scope
address (BUFHI, BUFLO) maintaining t:hat address modulo the

upper and lower bounds.

point at a time.
(IS«[)

RDORA then displays the buffer one

After each point is displayed, RDORA checks

the cursor count; when it goes to 0, the cursor is dis-

played.

RDORA also checks for the end of the display buffer

and the end of a field, resetting to the start of the display

buffer or to the next field respectively, as the case may be.
ter all points have been displayed, the routine DSCLOC is

called to display the four words in the upper left corner
of the scope.

RDORA then restores the user's data field

and returns.

Af-

5.3

FLOW DIAGRAM

IDORA

SETUP
MIN ADDR
MAX ADDR+l
Y OFFSET
Y SCALE

INITIALIZE
SCOPE STARTtNG
ADDR
^

(RTN TO

SCR N Locy

TdsC LOC

DSC CURSOR
FIELD
'

ADDR
CORE LOC
Y COORD
RESTORE USER
DATA FLD

SAVE USER
DATA FIELD
READ
HORIZ CURSOR KHOB
WINDOW KNOB

ADD WINDOW
KNOB TO SCOPE
ADDR

RESET
SCOPE ADDR.

SETUP DISPLAY
ARCS

5,4

LISTING

0000
0001
0082
§003
0004
0005
0006
0007
0010
0011
0012
0013
0014
0015
0016
0017
0020
0021
0022
0023
0024
0025
0026
0027
0030
0031
0032
0033
0034
0035
0036
0037
0040
0041
0042
0043
0044
0045
0046
0047
0050
0051
0052
0053
0054
0055
0056
0057
0060
0061
0062
0063

^20

/OISPLA¥ (MINI MAGSPY 5
/COPYRIGHT 1970
/DISITAL tmiPWHl CORPORATIONiMAYNARD
/MOVING WINOOH DISPLAY SUBROUTINE
/CURSOR
OUT
/CORE OR TAPE FILE
PNODE
• 5400

/if^lTIAL CALL GET PARAH LIST

/SET ARGS FOR RDORA

5401
5402
5403
5404
5405
5406
5407
5410
5411
5412
5413
5414
5415
5416
5417
5420
5421
5422
5423
5424
5425
5426
5427
5430
5431
5432
6433
5434
5435
5436
5437
5440
5441
5442
5443
5444

0000
7300
6201
1600
3635
2200
1600
3636
2200
1600
3637
2200
7001
1600
3640
7iB4
1637
3637
2200
1600
3020
2200
1600
3643
1635
3641
1636
3642
5600
5615
5616
5674
5675
5774
5779
5644
0401

XDORAi

CLA CLL
CDF i
ACOF0I
TAO 1 lOORA
DCA I KMNFLD
ISI IDORA
TAD 1 lOORA
OCA I KHNADR
ISZ IDORA
TAO I IDORA
OCA I K^%no
ISZ IDORA
lAC
TAD 1 IDORA
DCA I KHXADR
nki
TAD I KHKFUD
DCA I KHKFLD
ISZ IDORA
T4D I IDORA
DCA YSHFT
IS2 IDORA
TAD I IDORA
DCA I KYSCAL
TAD I KHNFLD
DCA I K6UFHI
TAD I KHNADR
DCA I KBUFLO
JMP I IDORA
KMNFLD, MINFLD
KMNAOR, MINADR
KM^FLDi NAXFLD
MAMADR
KBUFHI, BUFMI
SUFLO
KYSCAL, Y8CAL
P401,
401

/GET BOUNDS
/DATA BUFFER
/f 5 BIT
/LOWER BOUND
/AT F«^lp

P'¥2

/MINFLOiMINAOR
/UPPER BOUND
/AT P4*3» P^4
/RDORA USES
/HAX^'l

/Y SHIFT

/Y SCALE

/INITIALIZE
/WINDOM
/STARTING ADDR
/RTN TO SCR N

ffi

£J

1244

TftU

A AM

OCA

P401

U ^nAB

/DSC XfT COuNp

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f-ft

1,1 Sr~

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¥ A fa

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T fty

TAP F4i 1

D^D9
^J^f

BBBi

KTWCOr

^I
fS <3

i
J3

/CONTENT® OF
/CURSR CORE toe
/y COORD Of

97 44

ROPRA

» 1 vSi

soffit

H
5 414it 41

LINC

04 / ^

ITC TEMP
iTC

lti3

/CURiOR PuXNt
/RESTORE USER
/DATA flD
/RTN
/DSC C(AC)

B Hp «l
fit

31^

W1
0f
B t1 ^
B1 10

mQu
1487

Bill

(SI

Bi 1s
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^114
01 1D
B1 16
BX I'
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0265
10^0

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^20
111

1^7 4

0241
1160

ift"?"?

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Bi2«*S
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B 1 «3i

D I ^

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BS4 1
1120

s 1 «:

low
R J
1014
1515

1
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4 1^ #s

n4o <
A Ai

K 9
1517
1 52B
1521

9507
7 470
0002

0D22

f «a *a

K4 A
4

ste 2
ADD veopRD
DSC 2
DSC I 2
KSK I 1
XSK I 1
SRO 1
3567
JHP DSCIQP
FDP

B 1 iAa
^B
B I 41

022
4

RQfl

0150

DIGIT
A TIME
4
A V
/UPDATE
/Low 3 BITS
/ONLV
/*8 AND RtL
/TO GRID TAB
/I

/AT
1

55^4
5539
5526

/MAKE GAP
/BETWEEN CHARS
/DSC 4 CHARS ?
/NO CO?^T

PHODE
iffls

DDga

0 1 46

TAiSIF77
/3

B1
a
09
B 41 HA
a
4 17
BIO/

/FULL CHARS
/NO VC®4®
/UPDATE VC

loll

ROU
STA
TEHP
iCL 1
7770

B4B

? 7 ^ £»
a

/SAVE VALUE
/SNAW 1
/V€ PCS FULL
/illE IS =^40
/®20 FOR HALF

ili

vfO 10
1 *Sfia

B 1 «7

IDA
^

fft

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B 1 42
B1 4^

#• im

id 1*

HI 4

^Q
VCuUwD
4

1
I J

'5^

0 19 4
»I^p
B A «w

400
B024

453S
3651
2101

TAB

CLA CLL
JHP I DSCND
453i
/60,0
sesi
2101
/6l,l

/RTN

0151
0152
0153
iiS4
il55
i|56
0157
0160
0161
0162
0163
0164
0165
0166
0167
0170
0171
0172
0173
0174
0175
0176
0177
§200
0201
0202
0203
0204
0205
0206
0207
0210
0211
0212
0213
0214
0215
0216
0217
0220
0221
0222
0223
0224
0225
0226
0227
0230
0231
0232
0233
0234
0235

5527
5530
5531
5S32
5533
5534
5535
5536
5537
5540
5541
5542
5543

5544
5545
5546
5547
5550
5551

0177
4523
2iSi
4122
26S|
2414
0477
5172
0651
1506
4225
4443
6050
0000
7300
6214
1202
3260
6141

1552
1553
1554

0002

5555
5556
5557

1244
/14i
6141

1560
1561
1562
1563
1564
1565
1566
1567
1570

5773
0100
0344
0061
6777
7600
0105
0341
0002

5571
5572
5573
5574

3024
1024
6141
6000

S600
9601
5602
9603
5604
5605
5606
5607
5610
5611

0002
6201
3347
1347
7710
7040
3341
4304

0177
4523
giSi
i§Si
i4l4
0477
5172
0651
1006
4229
4443
6050

RDORA,

1347

/64^4
^69i5

/66|6
/67,7

CLA CLL
RDF
TAO ACDF0
DCA RTNCOF
LINC

0101
0341

3375

/6i,i

HSAM,

LHOOE
CURSAM
SCR 1
ROP
PNOOE
TAO P401
CIA CLL
LINC
LMOOE
STC CURCNT&1777
WINSAM
SCR 4
SET I XCORD

/SAVE USER OF

/CURSOR
/9 BITS COVERS
/SCOPE
/MAKE RANGE
/•I TO «i000

/WINDOW
/75 CENTS W0RTH
/912 PNTS

JHP C0NT&i777

FREE,

PRESAM
SCR i
POP
PMODE
OCA YCUR
TAD YCUR
LINC
5000
PAGE

CONT,
CDF0,

/JHP 0

COP
DCA
TAO
SPA
CNA
DCA
JMS
TAD
DCA

D8LL0
D8LL0
CLA
DBLHI
OADD
DBLLO
iUPLO

/PUT KNOB VAL
/IN DAC
/PROPAGATE SIGN
/BIT HI ORD

/UPDATE WIN ADDR

ia36

saii
S6I3

1341

TAD DBLNI
BUPHX

3374

0240
024i

/NUiT CHK
/WINOQN SA
/WITH BOUNDS
/TO MAINTAIN
/BUFFER RIN5

M42
i243
0244
0243
0246
0247
0250
02SI
0252
0253
025S
0250
025?
0260
@26i
0262
0263
0264
0265
0266
0267
0270
027i
0272
0273
0274
0273
0276
0277
0300
0301
0302
0303
0304
0305
0306
0307
0310
0311
0312
0313
0314
0315
0316
0317
0320
0331
0922
9

5614
5615
5616
S6|7
S6|§
5621
5622
5623
5624
S625
5626
BBlf
5630
5631
5632
5633
5634
5635
5636
5637
5640
5641
5642
5643

4316
0001
0000
770i
5273
1274
3374
1279
3375
4104
1347
337S
1341

3374
1375
3304

mk
tHHHl
TAO
DCA
T^O
OCA
JHi
TAD
OCA
TAP
DCA
SiTFLD, TAD
DCA

1327
3025
1374
3316
4341
1704
1020
6141

1644
1645
1646

0341
ilil
0002

5647

2373

5650
5651
5652
5853
5654
5655
56S6
5857
5560
5661
5662
5663

7610
5351
2376
5263
2377
5263
1216
3304
1215
3316
5266
2304

5664

SOUND

5267

/UOttlfR

BQMNO

NINFLD, 1
HINADR, i

f AO

DCA
TAD
OCA
jn$

iUFHI

BUFLQ
DADO
D8LL0
iyPLO
DBLNI
BUFHI
BUFUO
8UPPTR
HI000
COUNT
BUFHI
BOUND
SiTDF
1 iUFPTR
¥SHFT

/OFF SET

/SCALE FACTOR

TAD
lint
LMODE

VSCAL,

%m
D!S
PDF

/CORRECT NRAP
/CORRECTED
/MINDON SA
/SET DISPLAY
/ARCS

XCORD

PMODE
XS2 CURCNT
SKP CIA
ISX
JHP
xsz
JHP
TAO
DCA
TAD
DCA
JHP
ISl

/LON END MRAP
/NO
/RESET TO
/UPPER BOUND

ENOIO
OKE^^D

ENOHI
OKENO
HINADR

/READY TO DI8
/CURSOR t
/NO
/CHK FOR HI
/END KIRAP

/RESET TO
/LOWER BOUND

ntmio
BOUND
NXTOP
BUFPTR

JMP OKFLO

/CHK FOR FIEL

/BOUNDARY
/ITS OK

mm
0324
0325
032/
0330
0331
0332
0333
0334
8335
0336
033F
0340
0341
0342
0343
0344

0345
0346
0347
0350
0351
0352
0353
0364
0355
0356
0357
0360
0361
0362
0363
0364
0365
0366
0367
0370
037i
0372
0373
0374
0375
0376
0377
0400
0401
0402
0403
0404
0405
0406
0407

5665
5666
5667
5670
5671
5672
5673
5674
5675
5676
5677
5700
5701
5702
5703

Saii
4341
2025
5241
5672
5445
4316
0002
0000
7710
5232
1215
3374
1216
5224

5704
5705
5706
5707
5710
5711
6712
5713
5714
5715

0000
7300

CHKHI,

III SOUND
JH8 3ETDF
XSZ COUNT
JMP NXTPNT
JMP I
DSCLOC
JMS BOUND

HAXFLDi^

HAKADR,
M70,

NXTDF,
OKFID,

SPA
JHP
TAO
OCA
TAD

/SET NKT FLD
/512 PNT8 f
/NO
/DSC READ OUT
/CHK UPR BOUND

CUA

/HI WRAP ?
SETFID
MINFLD
/YES
SUFNI
/RESET TO
HINAOR
/LOWER BOUND
4W WRAP
/DOUBLE PWeCISION ADO
/(DBLHI,DBLL05*(SUFHI,BgFLa)
/RESULT IN C08LH1,DBLL0)
/CBUFHI,BUFLOJ«INITIAL SCQ'^e ADDRESS

DADD,

CLA
TAD
TAD
DCA
RAL
TAD
TAD
DCA
JHP

1347
1375
3347

7004
1341
1374
3341

5704

CLL
DBILO
SUFLO

DBLLO
DSLH!
BV^Hl
DB^Ml
I
DADD

/ADD •UPPER OR -LONER BOUND
/TO CBUFHI,8UFL0)
/BOUND 18 AT P*1,P*2 OF CALL

5716
5717
5720
5721
5722
5723
5724
5725
5726
5727
5730
5731
5732
5733
5734
5735

1341
3377
1347
3376

TAD I BOUND
CMA cll
DCA DBLHI
ISZ lOUND
TAD I BOUND
CIA
8ZL
ISZ DBLNI
NOP
DCA DBLLO
JHS DADD
TAD D8LHI
DCA ENDNI
TAD 08LL0
OCA ENOLO

5736

1341

TAO DBLHI

0000
1716
7140
3341
2316
1716
7041
7430
2341
7000
3347
4304

BOUND,

H1000,

/2S COM OF ARG
/TO DAC

/DAC MOLDS »NUH
/TO END OF 6UF
/NO MATTER FOR
/LOW END WRAP
/TO CHK FOR

0410
0411
0412
0413
0414
0415
@4ia
0417
0420
0421
0422
0423
0424
0425
0426
§427
0430
0431
0438
0433
0434
043S
B4^6
0437
0440
0441
0442
0443
0444
0445
044S
0447
0450
0451
0452
045S
0454
0499
0499
0497
0460
0461
0482
0463
0464
046e
0466
0467
047.0

0471
0472
0473
0474

5737
S740
574i
5748
5743
5744
574S
5746
5747
9750
9791
9792
5793
5754
5755
S7Si
575?
S7ii
9761
9761
3783

6141

1764
1789
1766
1787

0469
7966
0141
0002

5770
5771
5772
9773

2347
S363
5290
0000

5774
5773
8776
5777

0001
0000
0000
0000

2316
5716
iiii
1316
7|ii
7ii4

ISl iOUNO

JHP
SETDF,

IK4

/UPON RTN

iOUND
/SET 3 FliLO
/RiL TO SOUND

TAD SOUND
cut RTL
iAL
T^D CDF0
OCA

I2ii

3347
00i0
9741
3024
1316
3021
i3i4
lit!
I7®4
^igS
I27i
3347

DgltO,

JMP I 8ET0F
eURDISi DCA veuR
/0I8P CURSOR
tjid ieuNo
/SAVE K,y
OCA MCURHI
/COORDINATES
TAD iUFPTi
OCA MeUiLO
fHO I iUf^TR
OCA CORVAL
T^O H7®
OCA OBULQ
TAD fCUR
CURIOPb linc
LHOOE
dN8 I 9
JMR FREE
/PREE CURSOR
DX8 XCORD
PDR
PHOOi
ISI DilLO
mP CUiLOF
JHP OUiRTN
CURCNTi i
/THESE 9 SU¥S HAV BE PAGE 0
iUFNI,
1
iUFio,
i
ENDLOf
i
ENOHIj
§
D8LH|«8ETDP
^

•

BUPPTR«OADO
XC0R0«1
U«OOE
CURSAHaSAH I
WINSAHiSAH a
FRiiAMfSAM a
iCAlE^iCR
SCl28UeaCR 3

/CURSOR KNOB
/WINDOW KNOB
/FREE CURSOR

/SCAUE FACTOR
/It BIT UNSIGNED
OFi2BU^4000
/Y OFFSET FOR
/I? BIT UNSIGNED
/THESE i GUYS MUST BE PAGE 0
/THEV ARE ALU CONTIGUOUS AND DEFINED
/RELATIVE TO VSHPT BUT THIS IS NOT
/A REQUIREMENT
YSHPTulB

0475
0476
0477
0500
0S0I
0502
0503
0504
0505
0506
0507
0510
0Sii
0512
0513
0514
0515
0516
0517
0520
0521
0522
0523

NO ERRORS

/THE

SCOPE READ OUT VALUES
KCURHI^YiHFT^I

MCURLOi^CURHUI
CORVAL^^CURLO^i
¥CUR^CORVAL#'l
COUNT^-VCURi^l
/AN inmPLE TO OISPLAy AIL Of FIEIO

/12 BIT UNSISNiO DATA

/PMODE
/*S0HEWHERE
/JMS I KZDORA

n
/0Pi28U
/SC12BU
/JHS I KROORA
/JMP ,«l
/KIDORA, lOORA
/KROORA, RDORA

/DISPLAY 3 AUG 70

/INITIAL CALL
/FLO
/ADDR
/FLO
/ADDR
/y OFF

SET

n SCALE FAC
/REFRESH CALL

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