Links

Amstrad PCW links:

• comp.sys.amstrad.8bit
  
  Old usenet Amstrad news group, now in Google.
• LocoScript Software
  
  The creators of Locoscript.
• PCW Today
  
  Amstrad PCW magazine. Now seems stopped.
• John Elliott
  
  The creator of the emulator Joyce. Very good site for programmers: CP/M bdos functions, disk formats, RSX's... also good software to download.
• Ian Macdonald
  
  His speciality: communications, email, web & internet... with the PCW!
• John King - Amstrad PCW Computer Spares
  
  You can buy second hand magazines, books, drives, belts, software... good information as well. This is the new address!
• Richard Fairhurst
  
  Low level information about the PCW: ports, memory, etc. Very good for programmers.
• PCW Joyce Computer Club
  
  Dutch user group (Amsterdam). Information, gallery, public domain software to download, on-line magazine. Very good site.
• Jacob Nebins
  
  Very good site for programmers. Amstrad "Joyce" software interface specification, notes on PCW I/O ports, CP/M information and more...
• www.galeon.com/amstradpcw
  
  PCW games, programs and info. Spanish and english.
• Jorge Perez Barreiro
  
  Programs and games in Mallard Basic, published years ago in Amstrad User, a spanish magazine. Spanish.
• PCWTOTAL --- OOPS! BROKEN LINK ¿Do you know a new link? ---
  Tons of PCW games and software. Spanish.
• Diego Vizcaíno
  
  Tons of PCW games and software for download. Spanish.
• Ron's Amstrad PCW Page
  
  How to repair the PCW, sales and wants, software...
• Ian Sales
  
  Used Amstrad/Schneider PCW/PcW items offered for sale.
• LuxSoft of Luxulyan
  
  Spares, repairs and support.
• Kathleen's general interest PCW site
  
  Models, compatibility and faq.
• SD Microsystems Ltd.
  
  You can buy books and software.
• Cliff Lawson's
  
  Cliff Lawson's Amstrad's Home Page. Original Amstrad "Joyce" software interface specification.
• David Langford
  
  Home page of David Langford, PCW Plus/PCW Today writer.
• PCW Knowledge
  
  My project of a free on-line PCW magazine. Sorry, now stopped.

CP/M links:

• comp.os.cpm
  
  Old usenet CP/M news group, now in Google.
• The Unofficial CP/M Web Site
  
  Digital Research sources, binaries, and documentation. Very good for programmers.
• Gaby Chaudry
  
  CP/M center, faq, programs and information. Very good site.
• Retroarchive
  
  CP/M commercial software, compilers, assemblers, databases, ...
• Telenova COMPIS
  
  German mirror of OAK Repository - CP/M Archive with a lot of CP/M software.
• MaxFrame
  
  Information about Digital Research and CP/M, history, photos, resources...
• The ZNODE 51 BBS
  
  Tons of CP/M software for download.
• The CP/M-86 Software Repository
  
  Specific to CP/M-86.

Z80 links:

• Z80 Family Support Page
  
  Thomas Scherrer's Z80 site with information about the Z80 processor family.
• Z80 information
  
  Links to websites with assemblers, information, programming tools, documentation...
• z88dk - The Z88 development kit
  
  Z80 C cross compiler project based on Small C. With C sources.
• SDCC - Small Device C Compiler
  
  Z80 C cross compiler project. With C sources.
• UZI OS for the Z80
  
  Unix like OS for the Z80. With source.
• Using CP/M 3 on YAZE
  
  How to run CP/M Plus with version 1 of YAZE Z80 emulator.
• YAZE AG - Yet Another Z80 Emulator by AG
  
  Vesion 2 of this very good Z80 emulator. Enabled to run CP/M Plus. With sources.

KeyMouse low level information on the Amstrad PCW

During development of Quijote, I discovered the following low level information about the PCW KeyMouse.

In the last 16 bytes of bank 3 (keyboard mapping):

0xBFFB	Bit 7 is the middle button status (1=pressed).
0xBFFD	Bits b4 to b0 are the low bits of the vertical movement counter.

Then, plus the addition of the very valuable information showed in the Richard Fairhurst website the low level interface of PCW KeyMouse is:

0xBFFB	b7: middle button status b6 to b0: horizontal movement counter
0xBFFC	b7 to b6: high bits of vertical movement counter
0xBFFD	b4 to b0: low bits of vertical movement counter
0xBFFE	b7: left button status b6: right button status

For button status: Bit = 1 if button pressed, otherwise = 0.

Values for movement counters: 0 to 127, but when 0 is decreased in 1, 127 is the result, and when 127 is increased in 1, 0 is the result.

List of C Compilers for CP/M

This is the list of the C Compilers for CP/M that I know.

If you know others C Compilers, mistakes in this information, more links, etc., please, email me.

Some abreviations used here:

• K&R means Kernighan and Ritchie.
• PD means Public Domain.
• GPL means GNU Public License.

This is the list:

• Alcyon C
  For CP/M-68K. Includes compiler, assembler, linker and libraries. http://www.cpm.z80.de/download/cpm68k1.zip http://www.cpm.z80.de/download/lib68881.zip (Floating point library for the 68881 or 68882)
  
• Aztec C
  For CP/M-80. By Aztec. K&R. Good overlay manager. http://www.retroarchive.org/cpm/lang/az106d.zip (v.106D Professional) http://www.retroarchive.org/cpm/lang/AZTEC302.ZIP (v3.02 for CP/M-86)
  
• BDS C
  For CP/M-80. By BD Software (Leor Zolman). K&R. Freely available. Source code included. http://www.bdsoft.com/resources/bdsc.html http://www.cpm.z80.de/develop.htm http://www.retroarchive.org/cpm/lang/BDSCUG.ZIP (BDS C User Group files)
  
• C/80
  For CP/M-80. By Software Toolworks. http://www.retroarchive.org/cpm/lang/c80v31.zip (v3.1) http://www.retroarchive.org/cpm/lang/c80v30.zip (v3.0a) http://www.retroarchive.org/docs/clib_pt1.pdf (C library v3.2 manual, part 1) http://www.retroarchive.org/docs/clib_pt2.pdf (C library v3.2 manual, part 2)
  
• DR C
  For CP/M-86. By Digital Research. http://www.autometer.de/gaby/DRI/lastdri.zip http://www.cpm.z80.de/download/drc86.zip http://www.cpm.z80.de/download/drc_86.zip (v1.1) http://www.cpm.z80.de/download/drc86111.zip (v1.11)
  
• HiTech C v3.09
  For CP/M-80. By Hi-Tech Software. ANSI. Freely available. Includes compiler, assembler, linker, librarian and debugger, library source code. Also known as Avocet C. http://www.htsoft.com http://www.retroarchive.org/cpm/cdrom/SIMTEL/HITECH-C/
  
• MESCC v1.01, Mike's Enhanced Small C Compiler
  For CP/M-80, Floppy Software (Miguel I. Garcia Lopez), K&R subset, GPL.
  Generates Z80 assembler code. Includes assembler, loader, optimizer. Includes source code. Can assemble itself. http://floppysoftware.es
• Mi-C
  For CP/M-80. German compiler. http://www.retroarchive.org/cpm/lang/mi_c.zip
  
• MIX C
  For CP/M-80. By MIX Software. K&R. http://www.retroarchive.org/cpm/lang/mix-c.zip (v2.0)
  
• Q/C
  For CP/M-80. By The CodeWorks (Jim Colvins). http://www.classiccmp.org/dunfield/img/applic.htm
  
• SDCC, Small Device C Compiler
  ANSI. GPL. Cross-compiler for various cpus, Z80 included. MS-DOS hosted. Source code included. http://sdcc.sourceforge.net/ http://sourceforge.net/projects/sdcc/
  
• Small C
  For CP/M-80, CP/M-86, MSDOS, ... originally written by Ron Cain. K&R subset. PD. Generates assembler code. http://www.cpm.z80.de/small_c.html http://www.ddjembedded.com/languages/smallc/ http://www.cpm.z80.de/small_c/smallc86.zip (v1.1 for CP/M-86) http://www.cpm.z80.de/small_c/smc88dos.zip (8080 for DOS) http://www.cpm.z80.de/small_c/c80dos.zip (8080 crosscompiler for DOS by R. Cain) http://www.cpm.z80.de/small_c/sci.zip (Interpreter by Bob Brodt) http://www.cpm.z80.de/small_c/small-c.tar.gz (For Unix) http://www.cpm.z80.de/small_c/smallc21.zip (v2.1 by Jim Hendrix) http://www.cpm.z80.de/small_c/smallcp.zip (Small C/Plus v1.0) http://www.ddjembedded.com/languages/smallc/smallc/z80/ (zcc v0.96 by Ken Yap)
  
• Tiny C
  For CP/M-80. K&R. http://www.retroarchive.org/cpm/lang/TINY_C.ZIP
  
• Whitesmith's C
  For CP/M-80. K&R. http://www.e-tech.net/~pbetti/archive/rlee/W/WHITESMITH/C/
  
• Z88DK, Z88 Development Kit
  ANSI. GPL. Cross-compiler for the Z80 cpu. MS-DOS hosted. Source code included. http://www.z88dk.org/
  
• Zilog C Compiler v1.01e 12/26/84
  For CP/M-Z8K. http://www.cpm.z80.de/download/8k0583.zip
  

Please, email me if you have any information about:

• HiSoft C
• Arnor C, K&R
• Ecosoft C v3.00, K&R, by Ecosoft
• Lattice C, by Lattice Inc.

MESCC - Mike's Enhanced Small C Compiler

MESCC is my project of a C compiler for the CP/M operating system and the Z80 cpu.
It is derived from Small C, and it is written in MESCC, and can compile itself.

MESCC generate Z80 assembler code that can be assembled in ZSM/Z80ASMUK, that it is also included, to generate the executable COM file.

Also, an optimizer is included.

It is released under the GNU General Public License, and source code for the compiler, the libraries, the optimizer and the other utilities is included.

My HTML browser for the Amstrad PCW and many other projects are written in MESCC.

If you want to receive a copy of the v1.01 release, please, email me.

Comments, bug reports, etc. are always wellcome.

INDEX: CP/M CONNECTIONS

Wellcome to
 

CP/M CONNECTIONS

My site dedicated to the world of the CP/M OS, the Z80 CPU, the AMSTRAD PCW computer, and related subjects.

 

 

INDEX

 

MESCC - Mike's Enhanced Small C Compiler

List of C Compilers for CP/M

KeyMouse - Low level information on Amstrad PCW

Links to CP/M, Z80 and Amstrad PCW sites

 

 MY WEBSITE

www.floppysoftware.es