Here are several programs in 68000 assembler to run Conway's Game of Life
on the monochrome bitmapped screen of an Atari ST.

monolife.s
	Designed and programmed by Eric Bergman-Terrell, 1987
	and does it by counting the neighbours of each pixel.
gray/
	is the 1987 transliteration by Jan Gray of the the PDP-11 code
	presented in "Life Algorithms" by Mark Niemiec, Byte, 4:1, January 1979.
	It does about 400,000 cell.generations/second but "can go faster".
mg/
	does it even faster with a hairy lookup table.
	Written by Martin Guy in 1988,
	almost certainly with further optimisation by
	David C. Wood of the University of Kent at Canterbury.
mg2/
	is a further optimised version of mg/