Digital PDFs

XX-34A7B-8D

1969

1 pages

Original

0.7MB

Document:	PDP-12 PocketReference 19 pages 4-9
Order Number:	XX-34A7B-8D
Revision:
Pages:	1
Original Filename:	http://svn.so-much-stuff.com/svn/trunk/pdp8/src/pdp12/PDP-12_PocketReference_1969_pages_4-9.pdf

OCR Text

Mnemonic Cod•

function

Mnemonic

Tlme(j.sec.)

IIASIC INSTRUCTIONS
AND
TAD
ISZ
DCA
JMS
JMP
IOT
OPR

0000
1000
2000
3000
4000
5000
6000
7000

Loa:icill AND
2's complement add
Increment and skip If zero
deposit and CIHr AC
ump to subroutine
ump
n/out tranafer
operate

3.2
3.2
3.2
3.2
3.2
1.6
4.25
1.6

Code

COM ■ INED

The followina Instructions are uaed
In the POP-8 mode.

't'

CIA
LAS
STL
GLK
CLA
CLA
CLA
CLL
CLL
CLL
CLL
SZA
SZA
SNA
SMA
SMA
SMA
SPA
SPA
SPA
SNA

/U4l

CLL
IAC
CMA
RAR
RAL
RTL
RTR
CLA
SNL
CLA
CLA
SZA
SNL
SNA
SZL
CLA
SZL

7604
7120
7204
7300
7201
7240
7110
7104
7106
7112
7640
7460
7650
7700
7540
7520

Function
Time {J.isec.)
OPERATE MICROINSTRUCTIONS
complement and Increment AC
load AC with awltch r. .l1ter
set II nk (to 1)
a:et link (put link In AC·bit 11)
clear AC and llnk
set AC= 1
set AC= -1

:~:~ =:m:: ~~:~=~ :~:

f!'ftht
clear link, rotate 2 left
clear link. rotate 2 riaht
skip if AC = O, then clear AC
skip If AC
0 or link is 1, or both
skip If AC ~ 0, then clur AC
skip If AC < 0, then c.lur AC
skip If AC < 0
skip If AC < O or link la 1, or both

1.6

mg
!~I~ :i ~~ ~ &. and If th• link Is 0
7710 skip II AC <!: 0, then clNr AC
7470

skip 11 AC C7' 0 and link

TTY KY ■D/READD
KSF
KCC
KRS
KRB

GROUP 1 OPERATE MICROINSTRUCTIONS
NOP
IAC
RAL
RTL
RAR
RTR
CML
CMA
CLL
CLA

7000
7001
7004
7006
7010
7012
7020
7040
7100
7200

no operation
Increment AC
rotate AC and link left one
rotate AC and link left two
rotate AC and link riaht one
rotate AC and link rtaht two
complement llnk
complement AC
clear llnk
clNrAC

1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6

7404 ·

SKP
SNL
SZL
SZA
SNA
SMA
SPA
CLA

7410
7420
7430
7440
7450
7500
7510

7402

7600

halts the proaram
Inclusive OR, switch r. .ister
with AC
skip unconditionally
skip on non-zero link
skip on zero link
skip on zero AC
skip on non-zero AC
skip on minus AC
:::,o;crlua AC

1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6
1.6

skip If flaa Is set
clear AC and flaa
KYBD/rHder buffer ➔ AC
clear AC, KYBD/re ■ der
buffer ➔ AC, cle•r flaa
TTY PRINTER/PUNCH
TSF
6041 skip if fl ■ s 1• aet
TCF
6042 clear fl•&
TPC
6044 AC ➔ printer/punch buffer.
print
TLS
6046 AC ➔ printer/punch buffer.
print, clear flaa
RANDOM ACCESS DISC FILE TYPE DF32
••DCMA 6601 clear disk memory
address recl1ter, & dlac:
flaa:s
.. OMAR 6603 load disk memory
address rea:lster & ,..d
• •oMAW 6605 load disk memory
address reaister and write
.. DCEA 6611 clear disk extended

QROUP 2 OPERATE MICROINSTRUCTIONS
HLT
OSR

6031
6032
6034
6036

!de%~s~ r:f~~~~~•=•nalon
.. [)SAC 6612 skip on address
confirmed flaa:
••DEAL 6615 load disk extended addrHs
and memory add,...
extension
.. DEAC 6616 read disk extended
address realater
.. DFSE 6621 skip on zero

.. DFSC 6622 :k;rof~a#ata
completion flas
• • DMAC 6626 read disk memory
addreurealat•r

from 8-mode.
~ 5.9
If executed

4.25 If executed
from LlNC-mode.