Memotech Multi-Function Expansion System

MFX Software

MFX Boot Screen - VGA

Introduction

This page is the repository for the custom software programs used by the Memotech Multi Function Expansion board, MFX.

MFX runs CP/M 2.2 or 3.1 and can execute any programs that run on original Memotech hardware with CP/M 2.2. The programs on this page are provided to take advantage of the additional capabilities available with MFX.

The programs below provide support for the non-standard features of MFX, including the WIZnet Ethernet module and various other support programs. Many of these programs were kindly developed by Bill Brendling and are described in more detail in the MFX Operator's Guide.

Download		Description	Version
Source	Object		Build	Date
in zip		cpmvdp.com - Start .com games from CP/M Puts the VGA screen into VDP mode before starting the game. Usage "cpmvdp filename.com"	1.0	18/06/22
in zip		ftpd.com - File Transfer Protocol Daemon (MFX ftp host) httpd.com - Http Daemon (MFX web server) (Do not use : Replaced by Build 230307)	220530	30/05/22
in zip		Updated ftpd and httpd to accept command line options to specify the default web server index filename (httpd only) and log file name (Delete "-remove" from the .com files to create the correct names) switch meaning example default -h  index file name -h index.htm index.htm -l log file name -l ftpd.log (none)	230307	07/03/23
		htsd.com - Hextrain for MFX with SD and SDHC Cards	211001	01/10/22
n/a		htes.com - Run HEXTRAIN using Bill's Enhanced Storage ABI. A ROM version of January 2024 or later is required to implement these functions.	231210	10/12/23
		fatcopy.com - Transfer files between the CP/M and FAT partitions. A ROM version of January 2024 or later is required to implement these functions.	240114	14/01/24
n/a		go3.com - Softboot of CP/M 3.1 from CP/M 2.2 system boot Allows older MFXs without the EP4CE10 FPGA to run CP/M 3. Requires an SD card with CP/M 2 and CP/M 3 partitions loaded. (Created by Martin)	250126	26/01/25
in zip		loadfont.com The original Memotech 80-column card has the font programmed in a ROM chip and therefore cannot be changed. However, when re-implementing the 80-column display in FPGA for the MFX, the font is stored in RAM within the FPGA. The FPGA provides Z80 ports which allow updating the font. To make use of this feature a small program, loadfont.com, has now been written to load new character sets, including IBM PC CP437 etc., into the FPGA. Full description by Bill is available on this page.	251114	14/11/25

Other

The MTX language ROMs do not provide support for country specific keyboard layouts such as AZERTY (France) and QWERTZ (Germany), meaning that the keys typed are interpreted by the CP/M keyboard drivers as their UK equivalents. Martin has taken the key mapping from the German language ROM and created a small program to patch CP/M for the German language keyboard layout.

It should be possible to do the same for other language variants, please email if you need this functionality to be added for your keyboard language.

Download		Description	Version
Source	Object		Build	Date
n/a		german.com - patches CP/M for the German keyboard layout (QWERTZ). Run at startup, or add to the startup command string.	1.0	20/10/23

User Contributed

Download		Description	Version
Source	Object		Build	Date
n/a		MFXinfo.com - CP/M Version of MFXinfo Displays equivalent of BASIC USER INFO command under CP/M Contributed by Eugen Kaschubinsky	-	04/09/25
in zip		date.com, time.com - limited CP/M 2.2 RTC support for MFX Duplicates the functionality of the USER RTX commands to enable the RTC to be set & read from CP/M 2.2. CP/M 2.2 does not support an RTC like CP/M 3 does, but the date/time display is useful. Contributed by Eugen Kaschubinsky	-	09/09/25
in zip		temp.com - read the temperature of the RTC module in MFX Duplicates the functionality of the USER RTX3 command Contributed by Eugen Kaschubinsky	-	11/09/25
n/a		testcard.com - displays the colours and characters available from the emulated 80 column board Contributed by Eugen Kaschubinsky	-	28/09/25