a compiler with an x86-64 back-end and C backend!

I have plans to change the syntax.

Running the program

you will need to install the happy parser generator:

* cabal install happy

After you install happy you need to clone the repo:

* git clone git@github.com:Jobhdez/pyhs.git

and then navigate to the src/ directory and load the files. You can load the ToSelect module to run the examples below.

* cd pyhs/src
* ghci ToSelect.hs

Examples

Before running the examples, you need to build it:

* cabal build

and when you have the generated assembly, use gcc:

* cd pyhs
* gcc -c -g -std=c99 src/runtime/runtime.c
* gcc -g runtime.o <assembly file>

So far it can compile the following expressions:

let x = 0;; while x < 4;: if x < 5; then print(x);; let x = x + 1;; else print(3);;

You can generate the assembly file for the above program by:

* cd pyhs
* cabal run whileifeg

You can also compile an expression such as

if True then print(2); else print(3);;

To run this example:

* cabal run ifexpeg

And I have also tested this program

let x = 0;; while x < 5;: print(x);; let x = x + 1;;

To generate the assembly for this program:

* cabal run whileeg

Tuples

So far I can only compile the expression:

let x = (4;5;6);; print(x[1]);

If you want to generate the file yourself:

* cabal run tup

Thanks

This compiler was based on Dr. Siek's compilation book https://github.com/IUCompilerCourse/Essentials-of-Compilation. The runtime (runtime.c) was written by Dr. Siek but the compiler is my work.