Manners of getting input. From memory, maybe more later.

x86, 32 & 64b.

read from stdin to a buffer: Will read any character (incl. nulls).

fgets: reads up to n-1. terminates on nulls. adds a newline.

scanf: varargs. takes a format string specifier, eg scanf("%9s", mem_loc);.

getc in a while() loop: probably my least favorite.


port mapped io: x86 instructions in and out