

                 The Minus4j Emulator V1.2!
           Copyright Mike Dailly 1998,99,2000

			E-Mail me on
		      mike@dailly.org


	   The latest relase can be found at
                 http://minus4.plus4.net




		     DISCLAIMER


  THE BORING BIT! THIS PRODUCT IS FREE. AND AS SUCH I
  ACCEPT NO RESPONSIBILITY FOR ANY DAMAGE DONE BY THIS
  PRODUCT. IF YOU USE IT, ITS YOUR FAULT. IF SOMETHING
  HAPPENS COZ YOU USED IT, ITS YOUR FAULT. IF THE EARTH
  EXPLODES WHILE YOU USE IT, IT'S YOUR FAULT. IF I HAVE
  A BAD DAY COZ YOU USED IT. YOU GUESSED IT - ITS YOUR
  FAULT! ALL IN ALL - YOU USE IT AT YOUR OWN RISK!


What is it?
-----------
Minus4j is a Commodore Plus/4 emulator, written totaly in Java version 1.2
It is an applet, and will run on "most" java enabled browsers.


What do I do Now?
-----------------
The latest version is 1.2, and is currently available for download. 
Its fairly easy to use, but does require an HTML web page to get working locally.

To play, all you need to do is load the HTML page, and click on the applet... 
then use keys or joystick and play your fav plus/4 game! You should keep all 
the files in the same directory, just to keep it simple.

Heres a list of other keys you'll need...

F5 -  Frame Skip, speed it up on slower machines. a frame skip of 1 helps it run 
      on a Pentium 200MMX at a playable rate. 
F8 -  Joystick 1 emulation ON/OFF 
F9 -  Joystick 2 emulation ON/OFF 
F10 - Frames Per Second display ON/OFF (FPS) 
F11 - Increase delay. Allow faster machines to slow it down. Your aiming to get 50FPS for 
      it to be true plus/4 speed. On my AMD 850Mhz, it currently gets 130FPS. :-) 
F12 - Debugger ON/OFF. This is very simple for now. 
 

Feel free to use this where ever you like, but if you do decide to have 
Minus4j on your page, please drop me an email, and perhaps I'll even get 
round to adding a link on plus4.org



 
                Whats NEW now!!
                ---------------  

V1.2
----
Joystick support added via the cursor keys and SPACE 
FPS added 
"SLOW DOWN" key added. 
Extended Colour Mode added. (Manic Minor displays correctly) 
Drawing of scanline is delayed to a better place. ( helps Manic Minor ) 
IRQ is delayed by 2 instructions, rather than 8 cycles. (Icicle Works, now .... works) 
Commodore Key ( C= ) added .... backslash (may vary on other keyboards) 


Known Bugs
----------
BCD mode is broken - Mercenary doesn't work 
Joystick emulation needs to change from SPACE to CTRL (or user defined key) 
Commando (plus/4 version) doesn't work - CPU bug 
No vertical scrolling 
 

V1.0
----
Basic emulation, and first release - ALL CPU instructions added. 
Lots of known problems.
