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# Created by https://www.toptal.com/developers/gitignore/api/haskell
# Edit at https://www.toptal.com/developers/gitignore?templates=haskell
### Haskell ###
dist
dist-*
cabal-dev
*.o
*.hi
*.hie
*.chi
*.chs.h
*.dyn_o
*.dyn_hi
.hpc
.hsenv
.cabal-sandbox/
cabal.sandbox.config
*.prof
*.aux
*.hp
*.eventlog
.stack-work/
cabal.project.local
cabal.project.local~
.HTF/
.ghc.environment.*
# End of https://www.toptal.com/developers/gitignore/api/haskell

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# Revision history for Haskellator
## 0.1.0.0 -- YYYY-mm-dd
* First version. Released on an unsuspecting world.

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# What is it?
Haskellator is an experimental tool designed to unlock new possibilities in processing RTL (Register-Transfer Level) netlists. It aims to enhance simulation efficiency, offer insightful change analysis, and explore experimental synthesis techniques.
### Key Features:
- **Sparse Simulation**:
Traditional open-source RTL simulators store signal values every time a signal changes.
HaskellatorSim will save signal states only if they’ve changed
within the last host CPU second of simulation. This approach compresses the simulation
data whilst enabling quick recomputation of any gaps when viewing saved simulations.
This requires access to the RTLIL sources and simulation save files to fill in any gaps.
- **Change Condition Analysis**:
Haskellator will provide tools to analyze and trace the cause of signal changes during
simulation. By forming hypotheses about which signals influenced a change, it offers a
"git-blame" style feature for simulations. This functionality also requires access to
the original RTLIL sources and simulation save files.
- **Experimental Synthesis Techniques**:
We hope to explore the potential of using reinforcement learning neural networks to
optimize synthesis passes for input netlists. The synthesized netlist could be placed
and routed to determine fmax, which could be used as the score the neural network will
learn to optimize.
These are just a few of the concepts we're experimenting with. The broader goal is to
explore innovative ideas, develop a high-quality tool that can evolve with community
input, and just have fun!
# Status
Right now Haskellator can successfully parse some valid RTLIL into [an AST](./src/RTLIL/Syntax.hs).
We are currently working on expanding the RTLIL that can be parsed to include
[RTLIL](https://github.com/YosysHQ/yosys/blob/main/kernel/rtlil.h)
emitted from Amaranth Lang.
# Usage
## Run and Build With Nix(Linux and MacOS)
The following will allow you to see a pretty printed
AST for the given input `il` file.
```bash
$ nix-shell
$ rtlil-parse test/corpus/xprop_dffe_1nnd_wrapped_xprop.il -o parsed1.ast
```

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module Main where
import System.Environment (getArgs)
import System.IO
import Control.Exception (catch, IOException)
import qualified Haskellator
main :: IO ()
main = do
-- Get the command-line arguments
args <- getArgs
-- Check if a file name is provided
case args of
(filePath:_) -> do
-- Attempt to read the file
contents <- catch (readFile filePath) handleReadError
putStrLn "File Contents:"
putStrLn contents
[] -> putStrLn "cabal run Haskellator -- <file-path>"
-- Handle potential file reading errors
handleReadError :: IOException -> IO String
handleReadError _ = return "Error: Could not read the file."

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{ pkgs ? import (fetchTarball {
url = "https://github.com/NixOS/nixpkgs/archive/refs/tags/24.05.tar.gz";
}) {} }:
let
haskellPackages = pkgs.haskell.packages.ghc948;
haskellDeps = [
haskellPackages.base
haskellPackages.parsec
haskellPackages.filepath
haskellPackages.pretty-show
haskellPackages.prettyprinter
];
in
pkgs.haskellPackages.mkDerivation {
pname = "haskellator";
version = "0.1.0.0";
src = ./.;
isLibrary = true;
isExecutable = true;
enableSeparateDataOutput = true;
libraryHaskellDepends = haskellDeps;
executableHaskellDepends = haskellDeps;
homepage = "https://github.com/JoyOfHardware/haskellator#readme";
license = pkgs.lib.licenses.gpl3Only;
mainProgram = "rtlil-parse";
}

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cabal-version: 3.0
-- The cabal-version field refers to the version of the .cabal specification,
-- and can be different from the cabal-install (the tool) version and the
-- Cabal (the library) version you are using. As such, the Cabal (the library)
-- version used must be equal or greater than the version stated in this field.
-- Starting from the specification version 2.2, the cabal-version field must be
-- the first thing in the cabal file.
-- Initial package description 'haskellator' generated by
-- 'cabal init'. For further documentation, see:
-- http://haskell.org/cabal/users-guide/
--
-- The name of the package.
name: haskellator
-- The package version.
-- See the Haskell package versioning policy (PVP) for standards
-- guiding when and how versions should be incremented.
-- https://pvp.haskell.org
-- PVP summary: +-+------- breaking API changes
-- | | +----- non-breaking API additions
-- | | | +--- code changes with no API change
version: 0.1.0.0
-- A short (one-line) description of the package.
-- synopsis:
-- A longer description of the package.
-- description:
-- The license under which the package is released.
license: Apache-2.0
-- The file containing the license text.
license-file: LICENSE
-- The package author(s).
author: Yehowshua Immanuel
-- An email address to which users can send suggestions, bug reports, and patches.
maintainer: yehowshua@yehowshuaimmanuel.com
-- A copyright notice.
-- copyright:
category: Development
build-type: Simple
-- Extra doc files to be distributed with the package, such as a CHANGELOG or a README.
extra-doc-files: CHANGELOG.md
-- Extra source files to be distributed with the package, such as examples, or a tutorial module.
-- extra-source-files:
common warnings
ghc-options: -Wall
library
exposed-modules: Haskellator
other-modules:
hs-source-dirs: src
build-depends:
base ^>=4.17.2.1,
parsec >=3.1
default-language: Haskell2010
executable rtlil-parse
-- Import common warning flags.
import: warnings
-- .hs or .lhs file containing the Main module.
main-is: Main.hs
-- Modules included in this executable, other than Main.
-- other-modules:
-- LANGUAGE extensions used by modules in this package.
-- other-extensions:
-- Other library packages from which modules are imported.
build-depends:
base ^>=4.17.2.1,
haskellator
-- Directories containing source files.
hs-source-dirs: app
-- Base language which the package is written in.
default-language: Haskell2010

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module Haskellator(a) where
a :: Int
a = 3