My C compiler

My implementation of of the compiler described in Writing a C Compiler by Nora Sandler.

This is a C compiler targeting the cpu I designed in Digital. At some point I'll make a repository with the cpu schematics. This repository also has an emulator for the cpu written in Rust.

I wrote the assembler in Python a few years ago. It works, but the code is a mess. Soon I'll write a better version in Haskell.

Usage

Run

source scripts/bcc.sh

from the c-compiler directory to be able to use the following commands.

Compile with

bcc source.c -flags

Compiler flags: tokens, ast, semantics, tac, or asm. You can specify as many of these flags as you want, and the compiler will print the output of the corresponding stage.

Assembler flags: -emu if you want to target the emulator. The Digital simulation is targeted by default, and the output is written to the folder with the cpu simulation.

Other flags:

• -run if you want to immediately run the emulator after compiling
• -s if you want to keep the generated assembly code (it is removed by default)
• -out if you want to keep the generated .out file
• -bin if you want to keep the generated .bin file

You can also run

basm source.s

to assemble an assembly file. basm accepts the -emu, -run, -s, -out, and -bin flags.

Run the emulator with

bemu source.bin