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Acetaminophen by The Orz

ACETAMINOPHEN by The Orz

256 bytes Acorn Archimedes intro
for @party 2023

RPI (acetam): mode 28 640x480
this version (party version) do some sort of additive blend between circles

Archimedes (archie): mode 13 320x256 256 colors
this version has some sort of drop shadow on the circles,
it is faster than additive blend,
works best on ARM3, my initial target was ARM2
but it is slow due to lack of cache i guess
although params such as thickness, density / iterations and
nb of circles can be adjusted so it runs fine on early hw
on ARM2 12mhz 101 iterations + 3 density works ok but trade quality for speed

initial idea was lit off by optimus with his 2023 512b Ibuprofen entry,
coded the effect later on as a JS prototype but with minsky display hack for the circles,
i had no plan to do something with it but stumbled upon optimus
entry again and took the challenge to do it in 256b since
i thought that ARM with its barrel shifter would be at ease with minsky

~84 bytes taken by the RO API calls alone (screen setup, double buffer, vsync, escape, exit...)

sources for the archie version is bundled into .adf

code by grz

greetings to optimus and all sizecoders

16/06/2023