RT-11

2010-05-27T00:46:15Z

Jtcronin: /* notes */

RT-11 was an OS for the PDP-11. Overall it has a very [[OS/8]] feel to it.

== notes ==

The filesystem is like that of OS/8 in that files are stored contiguously on the disk. If a new file does not fit in a 'hole' left by an old deleted file, the files on the disk must be moved together to create a larger area of free space.
http://www.vaxdungeon.com/

INITIALIZE (format floppy)

=== Device names ===
(n is the numerical designation of the drive unit)
*DLn: RL01 disk cartridge
*DMn: RK06 disk cartridge
*DPn: RP02 or RP03 disk
*DSn: RJS03/4 disk
*DTn: TC11 DECtape
*DXn: RX01 diskette
*MMn: TU16 magtape
*MTn: TU10 or TS03 magtape
*RFn: RF11 fixed head disk drive
*RKn: RK05 disk cartridge
*DDn: TU58 DECtape II

*dk0/dk1/dk2/dk3 are the disks on the boot controller...

dungeon instructions & image.
http://www.geocities.com/capecanaveral/5517/pdp11.htm
console floppies http://www.headcrashers.org/comp/rx01/

== Commands ==
These are a few commands that I've managed to work out, in no particular order.

=== COPY command ===
The copy command is a little weird in how wildcards work.
<pre>
copy dx0:*.* *.*
</pre>
Is the best way to copy the disk files into the working disk.....

=== DIR command ===
Just like MS-DOS
<pre>
.DIR

SWAP .SYS 25 01-Feb-82 RT11BL.SYS 65 01-Feb-82
RT11SJ.SYS 67 01-Feb-82 RT11FB.SYS 80 01-Feb-82
TT .SYS 2 01-Feb-82 DT .SYS 3 01-Feb-82
DP .SYS 3 01-Feb-82 DX .SYS 3 01-Feb-82
DY .SYS 4 01-Feb-82 RF .SYS 3 01-Feb-82
RK .SYS 3 01-Feb-82 DL .SYS 4 01-Feb-82
DM .SYS 5 01-Feb-82 DS .SYS 3 01-Feb-82
DD .SYS 5 01-Feb-82 MT .SYS 9 01-Feb-82
MM .SYS 9 01-Feb-82 MS .SYS 10 01-Feb-82
LP .SYS 2 01-Feb-82 LS .SYS 2 01-Feb-82
CR .SYS 3 01-Feb-82 NL .SYS 2 01-Feb-82
PC .SYS 2 01-Feb-82 PD .SYS 3 01-Feb-82
CT .SYS 6 01-Feb-82 BA .SYS 7 01-Feb-82
PIP .SAV 23 01-Feb-82 DUP .SAV 41 01-Feb-82
DIR .SAV 17 01-Feb-82 FORMAT.SAV 19 01-Feb-82
SLP .SAV 9 01-Feb-82 SIPP .SAV 20 01-Feb-82
STARTS.COM 1 01-Feb-82 STARTF.COM 1 01-Feb-82
V4USER.TXT 1 01-Feb-82 CREF .SAV 6 01-Feb-82
DUMP .SAV 8 01-Feb-82 MBOT16.BOT 1 01-Feb-82
RESORC.SAV 15 01-Feb-82 SYSMAC.SML 42 01-Feb-82
EDIT .SAV 19 01-Feb-82 KED .SAV 60 01-Feb-82
K52 .SAV 55 01-Feb-82 TECO .SAV 50 01-Feb-82
MACRO .SAV 51 01-Feb-82 MAC8K .SAV 56 01-Feb-82
LINK .SAV 41 01-Feb-82 LIBR .SAV 22 01-Feb-82
FILEX .SAV 18 01-Feb-82 SRCCOM.SAV 13 01-Feb-82
BINCOM.SAV 10 01-Feb-82 MTHD .SYS 4 01-Feb-82
MMHD .SYS 4 01-Feb-82 MSHD .SYS 5 01-Feb-82
PATCH .SAV 10 01-Feb-82 PAT .SAV 8 01-Feb-82
HELP .SAV 107 01-Feb-82 HELP .EXE 7 01-Feb-82
HELP .MLB 98 01-Feb-82 ERROUT.SAV 17 01-Feb-82
SYSGEN.SAV 39 01-Feb-82 SYSGEN.CND 134 01-Feb-82
SYSTBL.CND 23 01-Feb-82 DSAVE .DAT 10 -BAD-
BATCH .SAV 26 01-Feb-82 QUEMAN.SAV 13 01-Feb-82
QUEUE .REL 14 01-Feb-82 SYSLIB.OBJ 47 01-Feb-82
MDUP .SAV 18 01-Feb-82 MDUP .MM 48 01-Feb-82
MDUP .MT 48 01-Feb-82 MDUP .MS 48 01-Feb-82
MBOOT .BOT 1 01-Feb-82 MSBOOT.BOT 3 01-Feb-82
DEMOF1.FOR 2 01-Feb-82 DEMOED.TXT 1 01-Feb-82
README.TXT 36 01-Feb-82 VT52 .TEC 5 01-Feb-82
VEG .TEC 4 01-Feb-82 EDIT .TEC 1 01-Feb-82
INSERT.TEC 2 01-Feb-82 LOCAL .TEC 3 01-Feb-82
SORT .TEC 3 01-Feb-82 VTEDIT.TEC 32 01-Feb-82
TECO .TC 23 01-Feb-82 SEARCH.TEC 3 01-Feb-82
SQU .TEC 13 01-Feb-82 TYPE .TEC 12 01-Feb-82
TECO .INI 15 01-Feb-82 ODT .OBJ 9 01-Feb-82
VDT .OBJ 9 01-Feb-82 VTHDLR.OBJ 9 01-Feb-82
PLOT55.OBJ 3 01-Feb-82 TEST55.FOR 5 01-Feb-82
GETSTR.FOR 2 01-Feb-82 PUTSTR.FOR 2 01-Feb-82
DINDX .DAT 20 -BAD- DUNGEO.SAV 216 -BAD-
SPEED .SAV 4 01-Feb-82 SYCND .BL 3 01-Feb-82
SYSTBL.BL 4 01-Feb-82 SYCND .DIS 5 01-Feb-82
SYCND .HD 5 01-Feb-82 SYSTBL.DIS 4 01-Feb-82
RTBL .MAP 16 01-Feb-82 RTSJ .MAP 16 01-Feb-82
RTFB .MAP 23 01-Feb-82 DISMT1.COM 9 01-Feb-82
DISMT2.COM 8 01-Feb-82 DTEXT .DAT 383 -BAD-
110 Files, 2571 Blocks
2191 Free blocks
</pre>

=== type command ===
The type command will show the contents of a file, just like MS-DOS.
<pre>
.TYPE STARTS.COM
D 56=5015
TYPE V4USER.TXT
D 56=0
</pre>

=== RUN command ===
Dungeon for example is executed with RUN. I think you have to run .sav files.
<pre>
.RUN DUNGEO
Welcome to Dungeon. This version created 10-AUG-78.
You are in an open field west of a big white house with a boarded
front door.
There is a small mailbox here.
>
</pre>

=== @ command ===
COM files are like batch scripts, and are executed with the @ infront of them.
<pre>
.@STARTS.COM

.D 56=5015

.TYPE V4USER.TXT
Welcome to RT-11 Version 4. RT-11 V04 provides new hardware support
and some major enhancements over Version 3B.

Please use the HELP command; it describes the new options in many
of the utilities.

If you are using a terminal that requires fill characters,
modify location 56 with a Deposit command before proceeding with
system installation. LA36 DECwriter II and VT52 DECscope terminals
do NOT require such modification.
</pre>

=== Squish command ===
Disks will need to be 'defraged' or compacted with this command. In some version it'll just be SQU.
<pre>
.SQU
Device? DK0:
RK0:/Squeeze; Are you sure? Y
</pre>

=== SHOW command ===
This is a very usefull command to show some info about the OS.
<pre>
.SHOW
TT
RK (Resident)
RK0 = SY , DK
BA
PC
NL
LP
MS
MT
DM
DL
DX
DP
4 free slots
</pre>

show configuration

== Tutorials ==
You may find the following of interest:
*[[Installing FORTRAN v2 on RT-11]]

[[Category:Operating Systems]]
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Computer History Wiki - User contributions [en]

RT-11