The Future was 8 bit DivMMC Future Manuale utente

V1.0 7-2017

GETTING STARTED

1. Set up your ZX Spectrum as normal

2. With the power off, attach the divMMC Future to the edge connector on the rear of the Spectrum.

The slot is keyed, it will only fit one way around –never insert or remove the divMMC Future with the

power on

3. Insert the SD card into the divMMC Future, it will click in place, click again if you want to eject it

4. Pause to appreciate there are no jumpers to set or switches to configure

5. Turn the Spectrum on

6. You should see a black screen announcing ESXDOS loading and three file should load

7. If it does not, switch off again and check the SD card is inserted correctly and the edge connector is

firmly in place

SD CARD

If you did not buy a preloaded SD card with your divMMC Future, download the starter file set and extract to

an SD card: tfw8b.com/downloads

The BIN and SYS folders need to be there for ESXDOS to work, the rest can be arranged as you like. The current

ESXDOS firmware is limited to 8.3 filenames, so rename files and folders where necessary.

There is a Games folder with many sample games which were downloaded from World of Spectrum. We have

not been able to test all the games in this folder, let us know if you find better versions. Most of these games

are over 30 years old and publically available on the internet, so it is really only the ebay sellers who would

benefit, not the original copyright holders. If any of these infringe your copyright, we will remove them from

future releases.

V1.0 7-2017

USING THE DIVMMC FUT URE

Whenever you want to load something, press the menu button at the rear button on the divMMC Future. This

is illuminated, and will flash during operation. When the menu appears, you can navigate through using the

arrow keys, select the appropriate file and press enter to load the file. Press space to exit the menu without

loading a file. Note you can load the menu and then return to BASIC without losing the current program.

RESET

The non-illuminated button on the divMMC Future is a reset button which will reset your Spectrum.

HELP

Online help is available by pressing the “H” key from the menu screen.

V1.0 7-2017

HITS AND TIPS

DISABLING/FLASHING DIVMMC FUTURE

When divMMC Future is in use, your Spectrum will boot up in 48K mode, even on later systems. If you want to

disable the divMMC Future and get the default menu on a 128K or later, simply press in the SD card to eject it.

This will disable the divMMC Future, and your Spectrum will boot as normal. To re-enable the divMMC Future,

just replace the SD card and turn the Spectrum back on.

Note because of this, the version of +3E ROMs which rely on disabling the firmware whilst retaining access to

the SD card will not work with the divMMC Future.

To install new firmware to the divMMC Future, load FLASHER via SD or CASSETTE and EJECT SD Card from

divMMC Future before commencing flash.

JOYSTICK

You can attach a standard Atari / Commodore style joystick which will appear as a Kempston compatible

joystick to the Spectrum. Note Sinclair / Amstrad style joysticks are not supported due to their alternate

pinout.

SUPPORTED FILETYPES

The current version of ESXDOS supports the following file types: .tap, .z80, .scr, .sna, .trd, .basic

In testing we have found some files available on the internet are more suitable for emulators and may not load

correctly on real hardware. If you are having problems loading a particular title, you can load it in an emulator

such as fuse, and save a .z80 screenshot once it is loaded (press F2 in fuse). These can then be loaded on your

real Spectrum.

POWER SUPPLY

Even though the divMMC Future uses less power than some other devices, the original Sinclair power supply

wasn’t great 30 years ago and is not ideal these days even running just the Spectrum. Why not get peace of

mind with a new regulated power supply available from tfw8b.com/sinclairpsu.html

GAMES FROM “ULTIMATE PLAY THE GAME” ON SPECTRUM 128K MACHINES

Certain games from Ultimate can unintentionally trigger the RAM paging mechanism on 128K/+2/+3 machines.

To get around this, type the following command before loading an Ultimate game on a later machine:

OUT 32765,48

V1.0 7-2017

USING THE DIVMMC FUTURE FROM BASIC

BASIC COMMANDS

Within BASIC, a number of commands are available as an alternative to using the main menu.

.ls –show directory listing

.cd dirname –change directory into ‘dirname’

.mkdir dirname –create a new directory called ‘dirname’

.tapein file.tap –set the tape input to load from ‘file.tap’

.tapeout file.tap –set the tape output to write to file ‘file.tap’

.cp source newfile –copy file ‘source’ to ‘newfile’

.mv oldname newname –rename a file form ‘oldname’ to ‘newname’

.more file –displays a text file

SAVING FILES

If you want to save a BASIC file, first navigate to the folder you want to save in (either use the menu or .cd

command). Return to BASIC and type the following:

.tapeout filename.tap

This will set filename.tap as the output file. Then save as normal

SAVE “myprog”

Your program will then be written out to the filename.tap file. If you want to change files or load back, you

should use the following command the close the file.

.tapeout –c filename.tap

To load you program back in, select ‘filename.tap’ from the menu.

If you already have a .tap file created, you can just scroll to the file and press ‘O’ to set it as the output file, and

then return to BASIC to save the file as before.

ACKNOWLEDGEMENTS

Thanks to Mario Pratzo, Miguel Guerreiro, and others for their work on the original divMMC designs and

ESXDOS firmware, more info at esxdos.org.

Thanks to Dave and Tim for their work in updating the divMMC design for the divMMC Future.

Sample games on the SD card were downloaded from worldofspectrum.org.

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