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50 lines
2.0 KiB
Markdown
50 lines
2.0 KiB
Markdown
This directory contains SixtyPical example programs, categorized
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in subdirectories by machine architecture.
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### rudiments
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In the [rudiments](rudiments/) directory are programs which are not for
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any particular machine, but meant to demonstrate the features of SixtyPical.
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Some are meant to fail and produce an error message. Others can run on
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any architecture where there is a routine at 65490 which outputs the value
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of the accumulator as an ASCII character.
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### c64
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In the [c64](c64/) directory are programs that run on the Commodore 64.
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The directory itself contains some simple demos, for example
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[hearts.60p](c64/hearts.60p), while there are subdirectories for more
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elaborate demos:
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* [demo-game](c64/demo-game/): a little game-like program written as a
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"can we write something you'd see in practice?" test case for SixtyPical.
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* [ribos](c64/ribos/): a well-commented example of a C64 raster interrupt
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routine. Originally written with the P65 assembler (which has since
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been reborn as [Ophis][]).
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The second version of Ribos has been translated to SixtyPical.
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* [petulant](c64/petulant/): "The PETulant Cursor", a tiny (44 bytes)
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"display hack". Originally written in the late 80's. Rewritten with
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the P65 assembler (now Ophis) and re-released on April 1st, 2008 (a
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hint as to its nature).
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Translated to SixtyPical (in 2018), after adding some optimizations
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to the SixtyPical compiler, the resulting executable is still 44 bytes!
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### vic20
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In the [vic20](vic20/) directory are programs that run on the
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Commodore VIC-20. The directory itself contains some simple demos,
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for example [hearts.60p](vic20/hearts.60p).
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### atari2600
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In the [atari2600](atari2600/) directory are programs that run on the
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Atari 2600 (4K cartridge). The directory itself contains a simple
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demo, [smiley.60p](atari2600/smiley.60p) which was converted from an
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older Atari 2600 skeleton program written in [Ophis][].
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[Ophis]: http://michaelcmartin.github.io/Ophis/
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