Esoteric C Compiler
A C compiler targeting esoteric architectures (for fun and profit).
usage: main.py [-h] [-o outfile] [-E] [-S] [-c] [-D macro[=val]] [-I path]
infile [infile ...]
Esoteric C compiler
positional arguments:
infile Input files, can be either C or ASM
optional arguments:
-h, --help show this help message and exit
-o outfile Place the output into <outfile>
-E Preprocess only; do not compile, assemble or link.
-S Compile only; do not assemble or link.
-c Compile and assemble, but do not link.
-D macro[=val] Predefine name as a macro [with value]
-I path Path to search for unfound #include's
Features (TL;DR;)
- fairly nice support for the C language from control flow to structures and function and preprocessor.
- support for multiple compilation units
- Can generate raw binaries
Features:
C Parsing
- nice error and warning prints
- proper type checking (hopefully)
- typedefs
- nestable structs and unions
- only named, anonymous will be added eventually
- variables
- only at start of function
- global variables (and arrays)
- fixed size arrays
- All of the arithmetic/bitwise operators
- while loops with break and continue
- if/else
- Constant folding
IR
- Based on jtac (ported to python and extended with whatever we need)
- SSA with decent register allocation and spilling support
- Should be easy to port to new targets
- Supports both signed and unsigned operations on registers
Code gen
DCPU16
- ABI based on 0x10c Standards Committee
- only stackcall for now
- Peephole optimizations
- Assembler can output object linkable files
- contain the raw data as well as relocations and import/exports