add piston nix pkg for iverilog

packages/iverilog/11.0.0/build.sh

@@ -1,17 +0,0 @@
-#!/bin/bash
-
-PREFIX=$(realpath $(dirname $0))
-
-mkdir -p build/iverilog
-cd build/iverilog
-curl -L https://github.com/steveicarus/iverilog/archive/refs/tags/v11_0.tar.gz -o iverilog.tar.gz
-tar xzf iverilog.tar.gz --strip-components=1
-
-chmod +x ./autoconf.sh
-./autoconf.sh
-./configure --prefix="$PREFIX"
-make -j$(nproc)
-make install -j$(nproc)
-
-cd ../../
-rm -rf build

packages/iverilog/11.0.0/compile

@@ -1,4 +0,0 @@
-#!/bin/bash
-
-rename 's/$/\.v/' "$@" # Add .v extension
-iverilog *.v

packages/iverilog/11.0.0/environment

@@ -1,2 +0,0 @@
-#!/bin/bash
-export PATH=$PWD/bin:$PATH

packages/iverilog/11.0.0/metadata.json

@@ -1,5 +0,0 @@
-{
-    "language": "iverilog",
-    "version": "11.0.0",
-    "aliases": ["verilog", "vvp"]
-}

packages/iverilog/11.0.0/run

@@ -1,4 +0,0 @@
-#!/bin/bash
-
-shift
-vvp a.out "$@"

packages/iverilog/11.0.0/test.verilog

@@ -1,7 +0,0 @@
-module hello;
-  initial
-    begin
-      $display("OK");
-      $finish ;
-    end
-endmodule