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update space invaders readme

chris.double 2006-08-02 21:20:08 +00:00
parent 48daad545e
commit cda21fa9a6
1 changed files with 12 additions and 19 deletions
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contrib/space-invaders/readme.txt
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@ -1,16 +1,16 @@
This is a simple space invaders emulator. The goal is to produce an This is a simple space invaders emulator. The goal is to produce an
emulator, disassembler and assembler for the 8080 processor. emulator, disassembler and assembler for the 8080 processor.
Running 'load.factor' will load all necessary files to run the game. It is integrated into the Factor module system, the following will
load all necessary files and run it:
If you are in the factor root directory, and have the ROM as a file "space-invaders" require
'invaders.rom' in that same directory, the following starts the GUI:
"contrib/space-invaders/load.factor" run-file
compile-all
USE: space-invaders USE: space-invaders
run run
For this to work it needs a ROM file called 'invaders.rom' in the
factor root directory.
'Backspace' inserts a coin, '1' is the one player button and '2' is 'Backspace' inserts a coin, '1' is the one player button and '2' is
the two play button. The left and right arrow keys move and the up the two play button. The left and right arrow keys move and the up
arrow key fires. arrow key fires.
@ -33,20 +33,13 @@ input/output ports.
Current Issues: Current Issues:
1) The Factor GUI doesn't seperate key events into 'up' and 'down' 1) The Escape key does not close the GUI. It does stop the CPU
events. Space Invaders requires this so we fake the up event. This emulation process though.
causes a delay when pressing keys which makes the game hard to play.
2) The Escape key does not close the GUI. It does stop the CPU 2) Closing the GUI using the 'X' does not stop the CPU emulation
emulation process though. process.
3) Closing the GUI using the 'X' does not stop the CPU emulation 3) The best way of closing the window is by pressing Escape and then
process. This needs to be stopped by sending "stop" to the process
returned from 'run':
USE: concurency
"stop" swap send
4) The best way of closing the window is by pressing Escape and then
'X' on the window. 'X' on the window.
For more information, contact the author, Chris Double, at For more information, contact the author, Chris Double, at