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Table of Contents
Summary of Contents for MGT PlusDlite
- Page 2 PlusDlite Floppydisc and joystick Interface for the ZX Spectrum Based on the MGT PLUS D from Miles Gordon Technology Floppydrive connector Joystick connector Power and status LEDs Reset and NMI buttons Configuration DIP switches To ZX Spectrum edge connector Read this manual before using the PlusDlite interface!
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Page 3: Symbols Used In This Manual
Compatibility The PlusDlite is compatible with the ZX Spectrum 16K, 48K, Plus, 128K, +2, +2A, +2B and +3. It is also compatible with the Multiface, but not with other (storage) interfaces with their own ROM. PlusDlite Quick Reference Guide To reference to a drive, use ‘D1’ and ‘D2’ or use ‘D*’ for the currently selected drive. - Page 4 Type RUN, then ENTER. The PlusDlite now searches for the system file on the floppy disc. During this process the PlusDlite led will temporarily go out (the led always goes out while the PlusDlite is executing a command). When the System is loaded, the screen will display: “Miles Gordon Technology G+DOSxx”...
- Page 5 Example: Displays an abbreviated catalogue. CAT 1 This will show the PlusDlite disc catalogue, a list of the files on the disc with various comments and the amount of free space on the disc in kilobytes. Program numbers The catalogue shows the program number in the first column on the left; files are not shown in alphabetical order.
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Page 6: Loading A File
Loading a File Normal Abbreviated syntax LOAD [d/D][1/2/*]"[filename]" LOAD [p/P][program number] Example: Example: LOAD D1"coolgame" LOAD p1 The filename when loading a program is case-insensitive. Whether or not the saved program has upper or lowercase does not matter when loading. When the program does not autorun, the ‘O.K. -
Page 7: Saving A File
ERASE D1"Example 1" Interface 1 compatibility Unlike Interface 1, the PlusDlite returns an error message if you try to erase a non-existent file. When using programs originally written for Microdrive, you may sometimes need to delete ERASE commands in the listing to avoid the error message when the program is running. -
Page 8: Copying A File
Example: FORMAT D1 Before a floppy disc can be used for the first time with the PlusDlite, it must be formatted. You can also format a previously used disc; the effect will be to wipe the disc clean of information. - Page 9 Interface 1 Syntax Compatibility Alternatively, the PlusDlite also understands the Interface 1 syntax. For example, you can load a file by entering: LOAD *"m";1;"file-name" This way most programs written for the Microdrive will be able to run without alteration on the PlusDlite's disc system.
- Page 10 An execute file is a machine code file occupying up to one sector length of memory (510 bytes). When loaded from disc it is executed (RANDOMIZE USR) in the PlusDlite RAM, not in the Spectrum memory, hence giving a programmer the ability to execute utility routines - such as renumbering a program - without affecting or using the Spectrum memory.
- Page 11 Snapshots The snapshot feature allows to transfer virtually any piece of ZX Spectrum software (for example: loaded from tape) to disc easily by means of the Snapshot Button. But this is also useful if you are a games-player, to be able to: - start a game at an advanced level instead of at the beginning;...
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Page 12: Error Reports
The file you are trying to save is too large for the space remaining on the disc. Directory FULL The PlusDlite's directory can hold a maximum of 80 files. Either ERASE some files to create space or insert another disc.
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