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RC702 Disks


 

This is a collection of software for RC702 in the form of floppy disk images that have been created from old floppy disks. The images are stored in IMD format. This is the format used by ImageDisk by Dave Dunfield. The .IMD format is described in the documentation for ImageDisk. For the disk formats I have been able to decode so far, I have included a zip file with the files extracted from each disk image.

Please notice that most of the disk images in this section is the intellectual property of other companies or individuals. Many of these companies are no longer in existance or they no longer sell these products. I have not included any material in this archive which I believe has current commercial value. If you are aware that any of the material represented here is being sold or otherwise distributed by a current owner, please contact me as soon as possible and I will remove it from the site immediately. It is not my intention to compromise any active distribution channel being operated by or on behalf of the owner of the property rights to this material. The files presented in this archive are for backup/recovery purposes only. By downloading files you acknowlege that you have valid license to use any software contained therein. You must obtain permission from the owner of the material if you plan to use it for any other purpose.

Some of the images contain bad sectors. These images were produced from floppy disks that are more than 30 years old. I was surprised that these floppy disks were still readable at all, but some of the floppies had sectors that could not be read. These sectors are marked as bad in the IMD file format, so they are easily identifiable. I have kept the contents of the bad sectors in the images, although these sectors most likely contain errors.

 

RC702 Software


Blank disk images

Blank RC700 5 1/4" floppy disk

A blank CP/M formatted floppy disk image for the RC700. It does not contain any files or system so this can be used for as a starting point for creating new disk images.
Download: BLANK.IMD

Blank RC700 5 1/4" CP/M floppy disk

A bootable CP/M formatted floppy disk image for the RC700 with 56k CP/M vers. 2.2 rel. 2.1.
Download: CPMBLANK.IMD

CP/M system and utilities

RC700 56k CP/M vers. 2.2 rel. 2.1

RC700 56k CP/M vers. 2.2 rel. 2.1 system disk with utilities.
Download: RCCPM2221.IMD
Documentation: CP/M Operating System Manual

RC700 56k CP/M vers. 2.2 rel. 2.2

RC700 56k CP/M vers. 2.2 rel. 2.2 system disk with utilities.
Download: RCCPM2222.IMD
Documentation: CP/M Operating System Manual

RC700 56k CP/M vers. 2.2 rel. 2.3

RC700 CP/M made in October 2015 from a reconstruction of the original source code.
First release of RC700 CP/M in more than 30 years, and this version is open source!
Download: CPM23.IMD
Documentation: Building RC700 CP/M from source

58K CP/M VERS 2.2

RC700 58k CP/M vers. 2.2 system disk.
Download: CPM22.IMD
Documentation: CP/M Operating System Manual

ROB358 autoloader

ROB358 autoloader for RC700 with source code and build script.
Download: AUTOLOAD.IMD

RC700 CP/M BIOS source code

Source code for RC700 56k CP/M vers.2.2 rel.2.1.
Download: RCBIOS21.IMD

RC700 CP/M utilities

Regnecentralen RC700 CP/M utility programs.
Download: RCUTILS.IMD

RC700 emulator utilities

Utility programs for RC700 emulator (fget, fput, hdmode).
Download: SIMUTILS.IMD

Programming

COMPAS PASCAL V1.0

COMPAS PASCAL V1.0 (CP/M version), Poly-Data microcenter ApS, 1981, 1982.
Download: COMPAS10.IMD

COMPAS PASCAL V2.10

COMPAS PASCAL V2.10 (CP/M Z-80 version), Poly-Data microcenter ApS, 1982, 1983.
Download: COMPAS210.IMD
User guide: COMPAS Common Pascal Language System Version 2.1 - Brugermanual
Programming guide: COMPAS Common Pascal Language System Version 2.1 - Programmeringsmanual

COMPAS PASCAL V2.20

COMPAS PASCAL V2.20 (CP/M Z-80 version), Poly-Data microcenter ApS, 1982, 1983. Recommended for programming in COMPAS Pascal.
Download: COMPAS220.IMD
Documentation: COMPAS Common Pascal Language System Version 2.2 - Addendum (see also COMPAS V2.10 documentation).

COMPAS-80 V3.03

COMPAS-80 V3.03, CP/M-80 version, Z-80 CPU, Copyright (C) 1983 Poly-Data microcenter ApS.
Download: COMPAS330.IMD

MATH48 V1.1

48-bit floating point package for Z-80 based microcomputers by Anders Hejlsberg. Copyright (C) 1980 Blue Label Software.
Download: MATH48.IMD
Manual: MATH48DK.TXT (Danish), MATH48EN.TXT (English)

RC700 COMAL80 1.8 Distribution Disk

RC700 COMAL80 Distribution Disk, release 1.8, (c) RC COMPUTER. This disk can be used for making new COMAL80 system and data disks.
Download: COMAL18.IMD

RcComal80 rev 1.0

RcComal80 rev 1.0 (CP/M version).
Download: RCCOMAL80-100.IMD

RC700 comal80 rev. 1.06

RC700 comal80 rev. 1.06 standalone system.
Download: RCCOMAL80-106.IMD

RC700 comal80 rev. 1.07

RC700 comal80 rev. 1.07 standalone system.
Download: RCCOMAL80-107.IMD

RC700 comal80 rev. 1.08

RC700 comal80 rev. 1.08 standalone system. Recommended for programming in COMAL-80.
Download: RCCOMAL80-108.IMD
Documentation: COMAL80 Brugervejledning

RC700 comal rev. 01.11

RC700 comal rev. 01.11. Early version of COMAL for RC700 running as a standalone system derived from ID-COMAL.
Download: RCCOMAL111.IMD

RC700 comal rev. 01.12

RC700 comal rev. 01.12.
Download: RCCOMAL112.IMD
Documentation: RC700 COMAL Brugermanual

RC700 comal rev. 01.13

RC700 comal rev. 01.13.
Download: RCCOMAL113.IMD
Documentation: Supplement til RC700 COMAL Brugermanual

METANIC COMAL-80

METANIC COMAL-80 V1.2E, Arne Christensen, METANIC ApS, 1980, 1981.
Download: METANIC.IMD

Pascal/MT+

Pascal/MT+ Release 5.5, (c) 1981 MT MicroSYSTEMS, Inc.
Download: MTP.IMD

micro-PROLOG

micro-PROLOG 3.0, Logic Programming Associates Ltd., 1983.
Download: PROLOG30.IMD

Aztec C

Aztec C Vers. 1.06B, Manx Software Systems, 1984.
Download: AZTECC106B.IMD

Microsoft MACRO-80 Assembler

Microsoft MACRO-80 Assembler, Ver. 3.44, 09-Dec-81, Copyright (c) 1981 Microsoft.
Download: MACRO80.IMD
Documentation: Microsoft MACRO-80 Assembler, Software Reference Manual

Microsoft BASIC-80

Microsoft BASIC-80 Rev. 5.21, Microsoft, 1981.
Download: MBASIC521.IMD

CIS COBOL

CIS COBOL V4.4, Copyright 1978,1981 Micro Focus Ltd.
Download: CSCOBOL.IMD
Documentation: See here for more details.

Office

RcTekst 1.1

RcTekst 1.1, Release 82.11.01, A/S Regnecentralen / Designer Software, 1982.
Download: RCTEKST11.IMD

RcTekst 1.2

RcTekst 1.2, Release 83.01.31, Copyright 1982 A/S Regnecentralen / Designer Software.
Download: RCTEKST12.IMD

RcKalk 1.0

RcKalk 1.0, Release 83.11.29, A/S Regnecentralen as 1979, 1983.
Download: RCKALK10.IMD

WordStar 3

MicroPro WordStar release 3.00.
Download: WORDSTAR3.IMD

BOGIKA

BOGIKA Tekstbehandlingssystem, Dansk Systemprogrammel 1981, Version 23-06-82.
Download: BOGIKAED.IMD

Games

PACMAN

PACMAN GAME VERS. 2.1 FOR RC702 CP/M VERS 2.2.
Download: PACMAN.IMD

RC702 CP/M games

RC702 CP/M games (KONG, WALL, METEOR, KRYBER).
Download: GAMES1.IMD

RC COMAL-80 games

25 games written in RC COMAL-80 with a menu system for selecting between the games (in Danish).
Download: GAMES2.IMD

Adventure

Michael Goetz's Colossal Cave Adventure for CP/M.
Download: ADV.IMD

Zork I

Infocom's ZORK I text adventure for CP/M-80: The Great Underground Empire.
Download: ZORK1.IMD

Zork II

Infocom's ZORK II text adventure for CP/M-80: The Wizard of Frobozz.
Download: ZORK2.IMD

Zork III

Infocom's ZORK III text adventure for CP/M-80: The Dungeon Master.
Download: ZORK3.IMD

 

My own floppy disks


 

I have created disk images of my old floppy disks for RC702. You can download these images here. All the RC702 disks are 5 1/4" double side/double density with a nominal capacity of 360 KB. There are normally 40 tracks on a 5 1/4" floppy disk, but it seems like only the first 35 tracks contain formatted data. There are two different basic sector layouts for the disks: CP/M and RC layout.

The CP/M disks have the following layout:

The first track contains the boot sectors. The remaining tracks are formatted as a CP/M 2.2 disk, but with a 2:1 interleave, so the sector ordering on a track is 0, 2, 4, 6, 8, 1, 3, 5, 7. The block size is 2K, so there are 4 sectors per block. The directory is stored in the first two blocks on track 2. Using this information I have been able to extract all the files from the CP/M floppy disks, which can be found in the ZIP files below.

The RC disks are double side, single density, FM, formatted with 16 sectors per track, 128 bytes per sector, and 35 tracks per side. This layout is used by some of the ID COMAL and UCSD Pascal disks. I have not yet figured out the file system format for these.
CP/M 56k vers 2.2
rel 2.1
UTILITY PROGRAMS
Michael Ringggaard

CPM56K.IMD
CPM56K.ZIP
Format: CP/M
RC700 RCTEKST
rel 1.1

RCTEKST.IMD
RCTEKST.ZIP
Format: CP/M
PROLOG vers 3.0
METANIC COMAL-80
LOGO
Michael Ringgaard

PROLOG.IMD
PROLOG.ZIP
Format: CP/M
WordStar
RcKalk
RcComal80
Michael Ringgaard

WORDSTAR.IMD (4 bad sectors)
WORDSTAR.ZIP (C80.COM bad)
Format: CP/M
Multi-Calc
CP/M rel 2.1

MULTICAL.IMD (1 bad sector)
MULTICAL.ZIP (FYS.LST bad)
Format: CP/M
CP/M
PERSONLIGHEDS
TEST
Michael Ringgaard

PERSON.IMD
PERSON.ZIP
Format: CP/M
MFMS DEVELOPMENT
Multi File Main-
tenance System

MFMS.IMD
MFMS.ZIP
Format: CP/M
MUSIK
BACKUP DISC
(C) Michael Ringgaard

MUSIK.IMD (8 bad sectors)
Format: RC
COMFORT V1.0
common forth
language system
(C) Michael Ringgaard

COMFORT.IMD (1 bad sector)
COMFORT.ZIP
Format: CP/M
GAMES 58k CP/M
Michael Ringgaard

GAMES.IMD
GAMES.ZIP
Format: CP/M
UCSD Pascal Loader
double side / double density
Michael Ringgaard

UCSDLDR.IMD
Format: RC
UCSD Pascal SYS:
double side / double density
Michael Ringgaard

UCSDSYS.IMD
Format: CP/M but not CP/M file system
UCSD Pascal SYS1:
double side / double density
Michael Ringgaard

UCSDSYS1.IMD
Format: CP/M but not CP/M file system
Færdige programmer UCSD Pascal PROG1:
UCSD Pascal SS/SD
Michael Ringgaard

UCSDPROG.IMD
Format: RC
RC702 Z-80 Disassembler
ID-Comal
Michael Ringgaard

DISASM.IMD
Format: RC
Diverse ID-Comal programmer
ID-Comal 1.18 1.13
Michael Ringgaard

COMALPRG.IMD
Format: RC
MR:
grafik (ny)

GRAFIK.IMD
Format: RC
Character
Graphic Editor.
Comal-80 1.06 C

GRAPHED.IMD
GRAPHED.ZIP
Format: CP/M (3 reserved tracks)

 

More floppy disk images


 

I am trying to find more software for the RC702 computer. If you have any software on 5 1/4" floppy disks (original or not) made for (or compatible with) the RC700, you are very welcome to send me your floppies. I have made a PC that can be used for reading these and create .IMD files. After reading, I will return your floppy disks.

 
Floppy image Description System Contributor
RC702CPM.IMD RcComal80 rev 1.0 RC702 56k CP/M vers. 2.2 rel 2.2 Jacob Dahl Pind
A7PHE.IMD RC disk formatting programs RC702E 56k CP/M Ver 2.2 Rel 2.20 Peter Heinrich
BCPROG.IMD COMAL opgaver RC700 comal rev 01.12 Peter Heinrich
DIVSPIL8.IMD Various COMAL80 games (GEO, MASTER, NIMB, FORTUNA, ...) RC700 comal80 rev. 1.07 Peter Heinrich
DOTEST.IMD Test programs RC700 56k CP/M vers. 2.2 rel. 2.0 Peter Heinrich
HENRIK.IMD Misc. Pascal, Basic and Comal-80 programs RC702E 56k CP/M Ver 2.2 Rel 1.7 Peter Heinrich
KUGLE.IMD Kahala, Garfield, and other COMAL programs RC700 COMAL80 rev 1.08 nr. 005 Peter Heinrich
MARATHON.IMD Marathon-83 FRAH/RC ID-COMAL Peter Heinrich
IDCOMAL.IMD Misc. comal programs RC700 comal rev. 01.12 Peter Heinrich
PROMBR1.IMD RC700 EPROM burner software RC702E 56k CP/M Ver 2.2 Rel 2.20 Peter Heinrich
PROMPLOT.IMD BINPLOT and TELEFON by Jørgen Pedersen, 1988 RC702E 56k CP/M Ver 2.2 Rel 2.20 Peter Heinrich
RC702TST.IMD RC702 Test Program Standalone Peter Heinrich
TELEOP.IMD BINPLOT and TELEFON CP/M Peter Heinrich
RCBIB .IMD RC700 BIB RC702E 56k CP/M Ver 2.2 Rel 2.20 Peter Heinrich
WSREZ2.IMD REZ Z80 Disassembler, MicroPro WordStar 3.00 and Datastar 1.101 RC702E 56k CP/M Ver 2.2 Rel 2.20 Peter Heinrich
PHPLAY.IMD Skattejagt, Skak, etc. RC700 comal rev. 01.12 Peter Heinrich
FKSOFT2.IMD FK-SOFT Økonomisystem RC702E 56k CP/M Ver 2.2 Rel 2.03 Peter Heinrich
KV81.IMD DAKS Kommunevalg 1981 RC700 comal rev. 01.13 Erling Schmidt
LOB81PGM.IMD Aalborgløbet 1981 (programs) RC700 comal rev. 01.11 Erling Schmidt
LOB81DAT.IMD Aalborgløbet 1981 (data) RC700 comal rev. 01.11 Erling Schmidt
CSCOBOL-4-4.IMD CIS COBOL V4.4 with examples RC700 56k CP/M vers. 2.2 rel. 2.1 Søren Roug
EPB.IMD Elite Planet Browser Compiled for RC700 CP/M using z88dk RobertK
HTRON.IMD HTron Compiled for RC700 CP/M using z88dk RobertK
MM.IMD Master Mind Compiled for RC700 CP/M using z88dk RobertK

 

ROMs