the Jupiter Ace emulator
Why build an emulator ?
Micro emulations are great educational tools, They are convienet for study, Can have an arrays of additional addons not availiable or practical to the real hardware, They are not rare so can be duplicated infinate times, Take no physical class room space, Don't get hot and burn out, Can't be broken by the students! (hmm well.. actually..) but best of all are far far cheaper than a real micro and associated hardware!
Additionally the nostalgia for all those that remember those classic micros like the ZX Spectrum, Amstrad CPC, Commodore 64, BBC Micro, Jupiter Ace (hmm not so much) well heres your chance to use a free one ( albeit without the yogurt pot case and a hefty price tag) - Enjoy.
What can it do
The original 3k Screen Inc. Backdoor \ Frontdoor memory access, interuppt CRT phosphor beam, Correct Z80 Instruction timing, oscilator @ 3.25mhz, Sound, Load / Save tape files (.wav) to transfer to and from real Ace.
Its pretty much a complete Jupiter Ace + Cassette Deck, but theres more...
Ram Packs, Official 16k, 32k(16k Pacer + 16k daughterboard : stone chip), Official 48k
Load and Save memory snap shots
Text to Forth (text file input key simulation)
Built in Z80 Assembler
Extensive real time Debugger ( Vars, Flags, OPs, Breakpoints, Interuppt, Tstates timing and more)
More Addons on the way...
For more up to date info check the History column on this page or just download the emulator and see for yourself.
We've written forth, machine code, loaded programs, ironed out bugs, all is well, Even with months of testing we may not find them all .. that's where you feed back any bugs you may have found.
What can't it do
At the present, 4000 ( if indeed there are differencies to emualte:TBC), Additional addons, Color...
Ok so we don't have the room on the net to answer this one...
We are still adding functionallity and other related software projects... work, work, work...
Installation ( NO install, NO registry garbage, NO DirectX, NO Mess )
1) Download the JupiterAce.zip Latest Version 1.0.4247 Build: 37209
2) Unzip the contents to a folder of your choice and run the 'JupiterAce.exe'
and away you go!
NO uninstall required, Just delete the files and its gone.
How to use the emulator ?
|A - Main Jupiter Ace TV Screen|
|B - Minimise Emulator|
|C - Change TV Size|
|D - Close Emulator|
|E - Show Pop-up Menu|
|F - Show Tape Deck Window|
|G - Mute Ace Sound|
|H - Turbo Mode on/off|
|I - Pause Ace|
|K - Minimise Tape Ace Tape Deck|
|L - Current Cassette Information|
|M - Progress of Current Block|
|N - Bytes/time Remaining on Tape|
|O - Record|
|P - Play Tape|
|Q - Pause|
|R - Previous Block (Rewind)|
|S - Next Block (Fast Forward)|
|T - Rewind Tape To Start|
|U - Eject Tape / Load New Tape|
Loading a Game or Program
The simple Way
Drag and drop your snapshot file on the TV screen and the emulator will do the rest!!!
Tape .wav file
Although you can still follow the method below there's a much quicker way to load tapes
Type load [name of your program] then drag the .wav file on to the TV screen and the emulator will do the rest.
For example: If the program you are trying to load is called FU then you would type:
and then drag and drop the correct tape (.wav) file on to the TV screen.
Traditional method using the tape deckTo get started first press button at F on the TV screen and the tape deck window will appear.
On here press the button at U and the browse window will open to allow you to select your tape or snapshot file you want to open.
If you select a .wav file then go to the TV Screen and type: load [name of your program] as above and then press P on the Tape deck screen to start the tape playing.
If you have any Jupiter Ace, Hardware, Software, Documentation, Information, Stories to tell, Can remember the Cantab Company, You worked there! then please get invlolved and contact us
Microsoft Windows XP, Vista, Windows 7 Possibly others
(let us know)
Microsoft .net framework (Vista and Windows 7 have this built in)
Thanks for reading, please if you can help out do so - Enjoy this micro emulator
- Jupiter Ace
- Jupiter Ace Emulator
- Jupiter Ace for Vista
- Jupiter Ace for Windows Vista
- Jupiter Ace for Windows 7
Added legacy ".ace" file support to load old snapshots.
Finally, Website & Jupiter Ace Emulator go live!
Code debugging, Preperation for public release.
Feb - May
After plenty of set backs 2 non working Jupiter Aces!
We are now up & running back on track!
Jupiter Ace Fixed: Faulty Tri-state Hex Gate
Read about it here...
Started Jupiter Ace Emulator.
See the Videos here plus more info here.
Working core of z80 and Jupiter Ace rom.
Memory and screen memory to windows.
Drag & Drop Loading.
Loading file support, snapshot, Forth to Text.
Microsoft Windows 7 compatible.
How Does it work
Want more info ? Information
we need your help!
Jupiter Ace Cassette Database
In order to maximise the database we need to find as many cassettes as possible, from unknown ones to ones known but we are unable to locate.
If you can help us with any old cassettes you may have in the loft you no longer want or know someone that has then please contact us and give them to a good home, If we can't get there in person we can get them collected by courier - please don't throw them!
Help by donating
Don't worry if you have no old hardware or software to donate, We greatfully accept funds via paypal to help us secure bits from others.
A big "THANK YOU!" to everyone the has donated, time, money, knowledge, tapes and hardware we are truly grateful - micro emulator .net Team.
Free Jupiter Ace Emulator for Windows
It emulates all known Jupiter Ace behaviour, Inc. Z80 (doc'd and undoc'd), Screen, Memory access, Ram packs, Audio tape files, Tape deck emulation, Sound, Forth, Snapshot saving and loading and more ...
The Jupiter Ace emulator is an attempt to preserve this old micro for all to enjoy.Requirements
Microsoft Windows 7, Vista, XP
( XP requires microsoft .net framework )
Latest Version 1.0.4247 Build: 37209 (3444)