Quote Originally Posted by JimOttley View Post
I am slightly in awe Joe, 5K OS with 1.5K required by the OS and the rest in machine code I'm impressed.

Closest I got to that was writing a couple of hundred instruction spaghetti code programs for Hewlett-Packard RPN calculators.
yes 3.5k and that 3.5k included your user defined graphics, sound and all your code !

it was a challenge to try to use the minimum bytes possible and also i use to count how many clock cycles a routine took ! for example to scroll a screen, with 1mhz processor , the number of cycles a instruction took counted

i was very young in those days