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authorpommicket <pommicket@gmail.com>2021-08-31 02:10:17 -0400
committerpommicket <pommicket@gmail.com>2021-08-31 02:10:17 -0400
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---- boostrapping a (Linux x86-64) C compiler ---
-
-Compilers nowadays are written in languages like C, which themselves need to be
-compiled. But then, you need a C compiler to compile your C compiler! Of course,
-the very first C compiler was not written in C (because how would it be
-compiled?). Instead, it was slowly built up, starting from a very basic
-assembler, eventually reacing a full-scale compiler. This process is known as
-bootstrapping. In this repository, we'll explore how that's done. Each directory
-represents a new "stage" in the process. The first one, "00", is a hand-written
-executable, and the last one will be a C compiler. Each directory has its own
-README.txt explaining in full what's going on.
-
--- instruction set --
-x86-64 has a *gigantic* instruction set. The manual for it is over 2,000 pages
-long! So, it makes sense to select only a small subset of it to use for all the
-stages of our compiler. The set I've chosen can be found in instructions.txt (a
-work in progress). I think it achieves a pretty good balance between
-having few enough instructions to be manageable and having enough
-instructions to be useable.
-
--- license --
-
-This software is in the public domain. Any copyright protections from any law
-for this software are forfeited by the author(s). No warranty is provided for
-this software, and the author(s) shall not be held liable in connection with it.