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DEC-12-SE2D-DN1

December 1973

6 pages

Original

0.3MB

Document:	dec-12-se2d-dn1
Order Number:	DEC-12-SE2D-DN1
Revision:
Pages:	6
Original Filename:	https://svn.so-much-stuff.com/svn/trunk/pdp8/src/dec/dec-12-se2/dec-12-se2d-dn1.pdf

OCR Text

Product Code:

DEC-12-SE2D'-DN1

Product Name:

LAP 6 -DIAL -MS for the RK8F

Pate Created:

June 1973

Maintainer:

P€fvelopit^ent

The software described in this dociiment is furnished to the purchaser
under a license for use on a single computer system and can be copied
(with inclusion of DIGITAL'S copyright notice) only for use in such
system, except as may otherwise be provided in writing by DIGITAL.
The material in this document is for information purposes only and is
DIGITAL assumes no responsibility
siabject to change without notice,
for the use or reliability of software and equipment which is not
supplied by it. DIGITAL assumes no responsibility for any errors
which may appear in this document.

This manual is a supplement to the LAP6-DIAL
Programmer's Reference Manual, DEC-12-SE2D-D
and the DIAL-MS Supplement, DEC-12-SE2D-DN.

1973 by Digital Equipment Corporation

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

COMPUTER LAB
COMTEK
COMSYST
DDT
DEC

DECCOMM
DECTAPE
DIBOL

DIGITAL
DNC
EDGRIN
EDUSYSTEM
FLIP CHIP
FOCAL
GLC-8
IDAC
IDACS
INDAC

KAIO
LAB -8
LAB-8/e
LAB-K
OMNIBUS
OS/8

PDP
PHA

PS/8
QUICKPOINT
RAD-8
RSTS
RSX
RTM
SABR
TYPESET 8
UNIBUS

CONTENTS
X,0

NEW FEATURE

2.0

SYSTEM IMPROVEMENTS

3,0

SUGGESTED MODE OF OPERATION
3.1
3.2

Initialization of a Formatted Disk
Bootstrapping DIAJ^ from the Disk

1.0

NEW FEATURE

DIAL"-MS has been modified to provide support for four RK05 disks.
This feature makes available to the PDP-12 user more low cost

mass random access storage than that previously available from
Digital Equipment Corporation.
2.0

SYSTEM IMPROVEMENTS

From

RK05 disks may be accessed by DIAL-MS. The unit numbers
for addressing RK8F devices for DIAL-MS commands are:
4

Device

Unit Number

RK05 disk

RKjJS

disks

20- 26

RK05 disks

30 - 36

RK05 disks

40 - 46

IjJ

- 16

Disk Unit

0-6
- 15q
16 - 24g
7

25 - 33o
8

The logical unit size has been increased from 1000g blocks to
1600g
blocks. This was necessary to provide the user access to all of the
disks.

The logical unit size is also compatible with LINC tapes
marked for 1600g blocks. PIP has been modified to treat logical
units as 1600g block devices. DIAL-MS itself, has not been modified
to operate on files which reside partially or entirely beyond block
This means that the DIAL commands AP, SP, AB, SB, LO, AS, LI,
777g.
QL, and PS will not operate correctly on a file whose last block lies
beyond block 777g. Use PIP to move files in and out of the area

beyond block 777g.
3.0

SUGGESTED MODE OF OPERATION

3.1

Initialization of a Formatted Disk

The following short procedure is used to initialize a formatted disk:
1.

Insert the cartridge into the disk drive and load it.
(Set the RUN/LOAD switch to RUN.)

Mount the RK8F DIAL-MS tape on unit 0, write enabled.

Set the left switches (LSW) , right switches (RWS) , and the
mode switch as follows:

LSW = 0701
RSW =

731i2f

MODE = LMODE
4.

When the disk is ready, indicated by the ready light on the
disk drive, press I/O Preset, DO, and START 20.

Load PIP from tape unit 0 and copy unit LjZf onto the system
unit R0. (The PIP used must be that which is supplied with
the RK8F system.)

Return to DIAL-MS, display the index on unit 10, and delete
any files which are not required on the disk, such as the
PIP sources and the BOOTSTRAP source. This step frees
storage space for commonly used programs

Load PIP from unit 10 and copy the most commonly used
system programs such as MARK12, CREF, FOCAL-12, TED, etc.,
from other DIAL-MS tapes onto unit 10*

If a backup of this system now residing on logical unit 10
is desired, copy it onto a LING tape marked for 1600^
blocks. To restore this tape onto another cartridge, it is
only necessary to mount this tape on unit 0 and perform

steps
3.2

through

Bootstrapping DIAL From the Disk

Assuming that the disk has been initialized as in section 3.1 and
that the bootstrap binary is stored in block 0 on the disk, the
DIAL-MS system may be restarted using the following procedure:
1.
l^i^fr

Set Switches
Si^.'—r

LSW = 0020

s-^^

i^sw =

....

6743

MODE = PMODE
2.

(V >i'^^J

Press STOP, FILL, FILL STEP
Set RSW = 5021

Press FILL STEP, I/O PRESET, and START 20