37 lines
1.2 KiB
Plaintext
37 lines
1.2 KiB
Plaintext
This is a first cut at a simple space invaders emulator. The goal is
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to produce an emulator, disassembler and assembler for the 8080
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processor.
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Running 'load.factor' will load all necessary files to run the game.
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If you are in the space-invaders directory, and have the ROM as a file
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'invaders.rom' in that same directory, the following starts the GUI:
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"load.factor" run-file
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USE: space-invaders
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run
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'Backspace' inserts a coin, '1' is the one player button and '2' is
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the two play button. The left and right arrow keys move and the left
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control key fires.
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If the ROM file you have is split into seperate files, you will need
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to merge them into one 'invaders.rom' file. From Windows this is done
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with:
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copy /b invaders.h+invaders.g+invaders.f+invaders.e invaders.rom
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Or Linux:
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cat invaders.h invaders.g invaders.f invaders.e >invaders.rom
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The emulator is actually a generic Intel 8080 and the code for this is
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in cpu-8080.factor. The space invaders specific code is in
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space-invaders.factor. It specializes generic functions defined by the
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8080 emulator code to handle the space invaders display and
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input/output ports.
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For more information, contact the author, Chris Double, at
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chris.double@double.co.nz or from my weblog
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http://www.bluishcoder.co.nz
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