Digital PDFs

XX-1FF08-FB

1969

1 pages

Original

0.7MB

Document:	PDP-12 PocketReference 19 pages 3-10
Order Number:	XX-1FF08-FB
Revision:
Pages:	1
Original Filename:	http://svn.so-much-stuff.com/svn/trunk/pdp8/src/pdp12/PDP-12_PocketReference_1969_pages_3-10.pdf

OCR Text

Mnemonic Code

Function

Tim•~>

Sl'£CIAL REGISTER BIT AUIQNMENTII

EXTENDED MEMORY MClZ
CDF
CIF

62nl
62n2

RDF

6214

chance to data field n
chana• to Instruction
field n
read date field Into AC blta
6-8
read instruction field Into
AC bit16-8

-{b//4 4) ~

..JnrP ::c

I I2I31415 I I I I I101 I
I

RIF

6224

Bit

Special Function

RMF
RIB

:~::
~=:~ r:.:,::~'lu~!:
INTERRUl'f

ION
IOF

6001
6002

2
3
4

not UHd
not used
trap enable
tape trap enable
half-size characters

CONTROL
tum Interrupt on
tum Interrupt off

4.25 if executed

CLSK
CLLR
CLAB
CLEN
CLSA
CLBA
CLCA

6131

skip on clock Interrupt
1
AC ➔ clock enable , . .1,ter
clock status recister ... AC

IHI
~g:: ~::t :~~ r:,~t~~,
6134
6135

6136

5.9 II oxocutod
from UNCmodo.

9
10

multiply
divide

norm ■ llz ■

shift left
erithmetlc shift rtpt
&oalc■ I shift riaht
load AC Into IJO, dur AC
read SC into At:!
.. MQA
Inclusi ve OR, MQ with AC
..Cl.A
clear AC
••CAM
clur AC and MQ
HIGH SPEED PERFORATED

6011

6012

skip If reader fl••= l
read reader buffer. and

llfC

6014

cl Hr ft ■■ and buffer and

3.2
8.0
4.0-9.0
1.6
0.3n
1.6
0.3n
1.6
0.3n
1.6
0.ln
1.6
1.6
1.6
1.6

g~g

l=O
l=O
l=l
l=l

8=0
/1 ~ 0

lotch choroc:tor

6021
6022

eklp If punch ftas=l

PPC

6024

PUI

6026

character
cl. ., fl ■a •nd butler; toad
and punch

f~::rbfl:,.::::u:~

:~:~::~:~:::I: I~ ~~=::ion

operand addres• ls In nut location

=~~=r~!~':.!1~~ :=::

"
HALF-WORD CLAaa ADDRESalNQ

•

8=0

l=O
l=O
1=1
J=l

fJ;/-0

clurfl ■8

HIGH SPEED 1'£RFORATED
TAPE PUNCH TYPE PRl/1

PSF

Tape Extended

Operation• Realat•r

INDEX CLAaa ADDRESSIN41

TAPE READER TYPE PRl/1

RSF
RRB

PCF

clock preset ~lltllr ➔ AC

-ODE MULTll"LY/DIVIDE 11£12
7403 load th ■ step count.er
7405
7407
7411
7413
7415
7417
7421
7441
7501
7601
7621

extended memory addreH bits
extended memory address bits
extended memory addreu bits
not used
t•P• m ■ r1' enable
tape Interrupt enable
rnt:~~pt
m ■ inten ■ nc• mode
aenerate 1/0 powerclur extended addr■sains moc:111
not UHd
no pause operatlorJ,
not used
hold current transport motion
not UHd
eddltlon■ I tranaporta
not uaod
■ddltlonal transports

6137 counter ➔ AC
MODE CHANGE
LINC
6141 chanae to LINC mode
POWEii FAILURE/RESTART KP12
SPL
6102 aldp on power too low
.. SCL
.. MUY
.. DVI
.. NMI
.. SHL
.. ASR
.. LSR
.. MQL
••SCA

I7 ~:~:r.m~

from 8-mode.

REAL TIME CLOCK KW12

R. .l1ter

operand add ress• Is In o+l
operand addrns• 11 In /J r■clst■r

::=~~: !~~~::~~~ fJ ,..

Islar, B

rqlat■ r lnc,.m■nted by 4000 durtna: lnltruc--

lion - o n
4.25 If ■-:■cut■d
fsom &·mod•.
5.9 If executed
from UNC-moclo,

...

In the case l=l, /J. =0, th ■ 12-bit operand addrna
la computed as follows: th ■ 11 low-order blu specify •

•EKc ■pt

memory oddrna. Tho hip order bit (bit 0) Hlocta •a holl-

wofd •• follows:

bit O=o-tolt hall-word
bit O=l-richl hall--rd