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33 lines
1.1 KiB
Plaintext
33 lines
1.1 KiB
Plaintext
The PETulant Cursor
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===================
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This is a tiny (44 bytes long) machine-language demo for the Commodore 64,
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somewhat in the style of later "display hacks" for the Amiga -- surprising
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and silly ways to play with the user interface.
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So as not to not spoil the fun, try running it before reading the source.
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To run it, make the file PETULANT.PRG accessible to your favourite Commodore
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64 (or Commodore 64 emulator) in your favourite way, then
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LOAD "PETULANT.PRG",8,1
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SYS 679
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For further fun, try changing the text colour (hold the C= or CTRL key while
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pressing a number) or the background colour (POKE 53281 with a number from
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0 to 15) while it is running.
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I must have originally wrote this sometime in the late 80's. I disassembled
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and rewrote it (to make it play more nicely with existing interrupt handlers)
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in 2008.
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Who knows -- this could actually be useful, in a ridiculously minor way: it
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makes it much more obvious when control has returned to BASIC immediate mode
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(e.g., when a program has finished loading.)
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Enjoy!
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-Chris Pressey
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April 1, 2008
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Chicago, IL
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