Writeup of the blit terminal's operating system is here, it consists of a lot more than the bitblt primitive, with many whole-system performance concerns at play:
Suggest you read this before denigrating Rob Pike's bona fides. Not sure what axe you are trying to grind but it is ugly and unbecoming of a professional.
http://a.papnet.eu/UNIX/bltj/06771910.pdf
Suggest you read this before denigrating Rob Pike's bona fides. Not sure what axe you are trying to grind but it is ugly and unbecoming of a professional.