3.4. 3.4 How HLA Allocates Memory for Variables
As you've seen, the 80×86 CPU doesn't deal with variables that have names like I, Profits, and LineCnt. The CPU deals strictly with numeric addresses it can place on the address bus like $1234_5678, $0400_1000, and $8000_CC00. HLA, on the other hand, does not force you refer to variable objects by their addresses (which is nice, because names are so much easier to remember). This abstraction (allowing the use of names rather than numeric addresses in your programs) is nice, but it does obscure what is really going on. In this section, we'll take a look at how HLA associates numeric addresses with your variables so you'll understand (and appreciate) the process that is taking place behind your back. ...
Get Art of Assembly Language, 1st Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
