img_doc.gif (2099 byte)  JX-Speccy Documentation

1. How to use JX-Speccy

1.1. Requirements

1.2. How to play ZX-Spectrum games

1.3. In-game keys


2. Troubleshooting

2.1. The game is too slow

2.2. The JX-Speccy applet doesn't start

2.3. I press the correct keys but nothing happens

1. How to use JX-Speccy

1.1. Requirements

In order to play JX-Speccy games you need:

1.2. How to play ZX-Spectrum games

After the initialization phase (gfx initialization, speed calibration, rom loading, ecc.), the JX-Speccy applet should start emulating the ZX-Spectrum: the following screen appears:

img_boot.gif (3369 byte)

This is the BASIC prompt of the ZX-Spectrum. In order to load a game you must choose it from the list at the top of the screen:

img_combo.gif (1206 byte)

and then press the Play button.If the game is in .TAP format the ZX-Spectrum will start loading it automatically after a reset.

When the game is started, you must read carefully the instructions on the screen. In most game you will be able to redefine the keys, in other you'll need to find 'em by yourself while playing. For those that are not familiar with Spectrum keyboard, frequently used key combinations are:

If available, you can select KEMPSTON JOYSTICK: JX-Speccy emulates it using the arrow keys and tab key:

k_left.gif (966 byte) = left, k_right.gif (968 byte) = right, k_up.gif (967 byte) = up, k_dw.gif (959 byte) = down, k_tab.gif (1179 byte) = fire

If you want to play another game choose it from the list and click play button again.

There are two special ZX-Spectrum keys (perhaps you'll need 'em in some games):

1.3. In-game keys

The following keys are also available:

k_f1.gif (998 byte) PAUSE/CONTINUE

k_f8.gif (1045 byte) check if JX-Speccy emulation is running at full speed. "Running at full speed" means that the emulator is running at 100% of the spectrum speed; "Running at slower speed" means that the emulator is slower than a real spectrum

k_f9.gif (1017 byte) activate/deactivate the flash-attribute handler

k_f12.gif (1042 byte) increase the number of frames skipped (higher emulation speed, but less fluid play)

k_f11.gif (1029 byte) decrease the number of frames skipped (the default is "0 frames skipped")

 

2. Troubleshooting

2.1. The game is too slow

In order to increase the emulation speed you can try one (or more) of these tricks:

 

2.2. The JX-Speccy applet doesn't start

First of all be sure that:

Try reloading the whole page (press "Reload" or "Refresh" button in your browser); if ot dowsn't work close the browser, re-open it and reload the page.

2.3. I press the correct keys but nothing happens

Simply click with the left mouse button over the game and retry.

 

njx_rainbow_home.gif (2699 byte)