The Jupiter ACE Emulator for MSDOS

Last updated 3rd November 1997 by Paul Robson (autismuk@aol.com)

Read the The Jupiter Ace FAQ .

Ace32 is a DOS Emulator for the Jupiter Cantab ACE microcomputer, manufactured in England in the early 80's. It was designed by people who were responsible , in part for the Sinclair ZX80 and ZX81. It was not quite as successful as the Sinclair machines however, and Jupiter Cantab went bankrupt shortly afterwards. It was unique, however , in that is used the FORTH language for programming.

The machine has the following specification :-

• Z80 CPU running at 3.25 MHz
• 3,19 or 35k RAM (original machines came with 3k).
• 8k ROM containing the FORTH compiler and editor.
• 300 / 1500 baud Cassette Interface
• 32 x 24 Monochrome Graphics , all 128 characters redefinable.
  • 40 key Rubber Keyboard
  • Single channel buzzer.

Thanks are especially due to Adrian Godwin, for providing me with the ROM Image, Michael Tippich, for the WDOSX Dos Extender, and Borland for TASM and TC, which were used to write it.

Download ACE32 v1.4 (46,239 bytes)

This contains the Ace Emulator, a copy of the Ace ROM and the Instructions for use. No further files are required to run the emulator.

Visit the software library for some programs for the emulator.

What's new in Version 1.1

• Snapshots are compressed to save disk space (old snapshots will still work).
• Numeric Keypad + is a quick Turbo Button
• Snapshots can be saved under any filename
• RAM Size can be set by holding down Ctrl + F1.

What's new in Version 1.2

• Correct default Colour Scheme (white letters on black).

What's new in Version 1.3

• Added support for @ and !
• Added support for .TAP file format.
• Added 'Five Ace Programs' to the archive.
• Confirmation of Emulator exit required.
• Keyboard Graphic aide-memoire added.
• Added ability to read a text file in as if it had been typed (useful for scanned magazine programs)

What's new in Version 1.4

• Fixed bug in the 'Spool' capability (F9)
• Removed "Five Ace Programs" to the software library

Email your comments , suggestions, further technical information (anyone know how the colour was going to work ?) etc. to :-

Paul Robson (autismuk@aol.com)