June 2014
Intermediate to advanced
946 pages
23h 40m
English
Content preview from Paradigms of Artificial Intelligence ProgrammingBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 23
Compiling Lisp
Many textbooks show simple interpreters for Lisp, because they are simple to write, and because it is useful to know how an interpreter works. Unfortunately, not as many textbooks show how to write a compiler, even though the same two reasons hold. The simplest compiler need not be much more complex than an interpreter.
One thing that makes a compiler more complex is that we have to describe the output of the compiler: the instruction set of the machine we are compiling for. For the moment let's assume a stack-based machine. The calling sequence on this machine for a function call with n arguments is to push the n arguments onto the stack and then push the function to be called. A “CALL n” instruction saves the return point ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.