CP/M and z80 related links
Mirror of the Oak CP/M archives, comprehensive!
- John Elliott's homepage (CP/M Main Page)
Software, information, links on CP/M, GEM, the PCW and Sinclair Spectrum
- The Commercial CP/M Archive
Big collection of commercial CP/M software
- Open Directory
Big collection of CP/M downloads
- Herb's Stuff
S-100 Systems, Docs, Accessories, S-100 FAQ
Digital Research History and
Documents, by Herb Johnson
Comprehensive information about the status of CP/M and Digital Research Software,
the various CP/M flavours and a list of manuals and disks available from him.
Impressive archive of antique software and manuals related to S100 & CP/M hardware
- Hal Bower's Homepage
Fixes and Utilities for CP/M and Z-Systems, ZSDOS/ZDDOS, B/P BIOS
- The Official IMSAI Web Site
The new edition of the IMSAI (Series Two) S-100 CP/M microcomputer
can be preordered here (!).
- Thomas Scherrer Z80 Family Official Support
Detailed descriptions of the hardware and the individual components, software,
- SIMH Altair 8800 Z80 simulator
Altair 8800-Simulator/Emulator and CP/M Operating System downloads.
- The Unofficial Amstrad WWW Resource
All about the Amstrad CPC, Amstrad plus und GX 4000
- Osborne CP/M Library
Online archive containing software and docs for the Osborne (1 and Executive)
- Using a 5.25" 1.2Mbyte floppy disk in place of
an 8" one
For hardware freaks only...
- Amstrad Computer Site
Information about various Amstrad computers
- Links to resources and FTP site provided by Guy Omer
8/N/1 BBS Online - TRS-80 FTP Site
- The "making of" CP/M 3.0 Plus for a Commodore C128
Comprehensive description including a couple of screenshots.
- TRS-80 Emulator Web Site
TRS-80 Model 4, 1-3 and Tandy 1000 emulators
- Z80 and CP/M Emulators
A comprehensive list of available emulators and simulators
- Hackinjoe - Homebrew Z80 Computer
Z80 Computer do-it-yourself project
- Homebrew Computer
Z80 homebrew project by and Tobias Bremer based
upon the (ex-GDR) Z1013, including graphics capability (in German!)
Online archive of obsolete computer journals (e.g. PIP magazines),
reports and photos from events, software docs, etcetera (mostly in German!)
- CP/M - The First PC Operating System
A collection of information about CP/M
Web sites about modern PDAs based upon Z80 processors:
Open Source CP/M games and more
Francesco Sblendorio at GitHub
TCP/IP stacks and similar packages for z80 or CP/M based machines:
(most comments by Herb Johnson and Allison Parent)
lwIP - A Lightweight TC/IP stack
The uIP TCP/IP Stack for Embedded Microcontrollers
uIP for the TRS-80 Model3
These three are the same project. the "savannah" page seems to be the
WIKI and repository for the "sics" page. Version 1.3.0 is dated March
2008. Under a megabyte for the ZIP code files. The "geocities" Model 3
code runs under TRSDOS 1.3 and LDOS 5.3.1., using SDCC or Misosys C
compilers. "Remember, SDCC is *really* buggy.." Page refers to the
sics Web site above.
- TCP for the Xerox 820
This was donated by Randy McLaughlin, who was active in
S-100 and CP/M several years ago and then VANISHED. The "readme" says
"OK: I can't remember from where I got this stuff, OK?". Looks like
AX25 and Xerox 820 C and asm code from 1991. may use Aztec C. The
"TCPGUIDE" says "KA9Q Amateur Radio", so this may be KA9Q's earliest
code, which he does not offer on his Web site today. The MAKE file has
statements like below, which may help identify the compiler:
cz -DZ80 -ib: b:mbuf.c
as -zap b:mbuf
No dates, no version numbers, no author names.
KA9Q TCP for Xerox 820
The KA9Q files for the Xerox 820. These may be identical to the above given archive. Please
check it out.
You will note the DOCs zip file has an .EXE that's the NOS for DOS.
It's included for completeness and also as it spans the history of that
code from the 1984 Xerox 820 to first 386 class PCs. The docs while
written for the PC version has enough of the history encapsulated
and some very good tutorial as well.
A SLIP/IP/UDP/TCP/DNS/TFTP/ping/finger/telnet stack for Amstrad CPCs
(copy at archive.org)
"CPC/IP is an implementation of the PPP, SLIP, IP, ICMP, UDP, TCP, DNS,
TFTP, HTTP, ping, finger and telnet protocols for Amstrad CPC computers
with an Amstrad, Pace or CPC Amstrad International serial interface. The
code occupies about 14K [less buffers]..." No changes since 2001, at
version 0.20. Apparently in assembler, using ZMAC. Apparently it's used
to connect to a "peer" computer (a CPC or a Linux box) running SLIP or
PPP. "CPC/IP is Copyright (c) 1999-2001 Mark RISON. You may not
distribute it without my permission..." but he suggests he would be
flexible, as of 2001.
Since the original site now has disappared, I grabbed the zip file, which can be downloaded
here. Who knows how long archive.org will keep the file...
Two more mirrors can be found here:
CPC/IP 0.11 and 0.12
Walnut Creek CP/M CDROM's code on "packet radio"
That part of the archive has the following:
- * Z80 sources for MULRPT AX.25 Xerox 820 repeater and a TNC (no author)
- * Z80 sources for "packet" use of Heath H89 and a TNC by "RAY, N6UE"
- * BASIC code for TRS80 Model 100 MINI-PBBS and a TNC by "Dick Roux N1AED"
- * "general purpose packet radio server node", with a Xerox 820 & CP/M,
and one or TWO TNC's. "MailBox and GateWay Version 12.0 - 5/11/87"
- * There are also three sets of PROM HEX code by WA8DED ver 1.2, for
"TAPR TNC-1 (or equivalent, such as the AEA PKT-1 or Heath HD-4040)", a
6809 based device; or the PK87; or the TAPR TNC-2 (or equivalent,
such as the MFJ-1270 or AEA PK-80), a Z80 based device. NO SOURCE
CODE, but these were apparently the TNC's in use by the above code.
- For more information about this subject please check out
Herb Johnson's page
about "TCP/IP" or "Internet" for CP/M