🚀 go-pugleaf

To refresh a 640 by 400 bit screen 70 times per second from memory 16
bits wide requires reading memory 1.12 million times per second.  It
takes 4 clock cycles (minimum) for the processor to read a word from
memory.  I would assume the same applies to the screen logic, *plus*
the time it takes to get control of the bus before reading, and
relinquish it after reading.  With an 8 megahertz clock, the screen
must be slowing down the processor by at least a factor of 2.

Or have I made a mistaken assumption somewhere?

-- 
David Canzi

Severeid's Law: The chief cause of problems is solutions.