<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<!-- Generated by HsColour, http://www.cs.york.ac.uk/fp/darcs/hscolour/ -->
<title>src/ForSyDe/Bit.hs</title>
<link type='text/css' rel='stylesheet' href='hscolour.css' />
</head>
<body>
<pre><a name="line-1"></a><span class='hs-comment'>{-# LANGUAGE TemplateHaskell, DeriveDataTypeable, MultiParamTypeClasses,
<a name="line-2"></a> FunctionalDependencies, TypeSynonymInstances #-}</span>
<a name="line-3"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-4"></a><span class='hs-comment'>-- |</span>
<a name="line-5"></a><span class='hs-comment'>-- Module : ForSyDe.Bit</span>
<a name="line-6"></a><span class='hs-comment'>-- Copyright : (c) SAM Group, KTH/ICT/ECS 2007-2008</span>
<a name="line-7"></a><span class='hs-comment'>-- License : BSD-style (see the file LICENSE)</span>
<a name="line-8"></a><span class='hs-comment'>-- </span>
<a name="line-9"></a><span class='hs-comment'>-- Maintainer : forsyde-dev@ict.kth.se</span>
<a name="line-10"></a><span class='hs-comment'>-- Stability : experimental</span>
<a name="line-11"></a><span class='hs-comment'>-- Portability : portable</span>
<a name="line-12"></a><span class='hs-comment'>--</span>
<a name="line-13"></a><span class='hs-comment'>-- 'Bit' Datatype. Note that the 'Num' instance is phony and shouldn't be used</span>
<a name="line-14"></a><span class='hs-comment'>-- </span>
<a name="line-15"></a><span class='hs-comment'>-----------------------------------------------------------------------------</span>
<a name="line-16"></a><span class='hs-keyword'>module</span> <span class='hs-conid'>ForSyDe</span><span class='hs-varop'>.</span><span class='hs-conid'>Bit</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bit</span><span class='hs-layout'>(</span><span class='hs-keyglyph'>..</span><span class='hs-layout'>)</span><span class='hs-layout'>,</span>
<a name="line-17"></a> <span class='hs-varid'>not</span><span class='hs-layout'>,</span>
<a name="line-18"></a> <span class='hs-varid'>bitToBool</span><span class='hs-layout'>,</span>
<a name="line-19"></a> <span class='hs-varid'>boolToBit</span><span class='hs-layout'>,</span>
<a name="line-20"></a> <span class='hs-varid'>toBitVector8</span><span class='hs-layout'>,</span>
<a name="line-21"></a> <span class='hs-varid'>fromBitVector8</span><span class='hs-layout'>,</span>
<a name="line-22"></a> <span class='hs-varid'>toBitVector16</span><span class='hs-layout'>,</span>
<a name="line-23"></a> <span class='hs-varid'>fromBitVector16</span><span class='hs-layout'>,</span>
<a name="line-24"></a> <span class='hs-varid'>toBitVector32</span><span class='hs-layout'>,</span>
<a name="line-25"></a> <span class='hs-varid'>fromBitVector32</span><span class='hs-layout'>,</span>
<a name="line-26"></a> <span class='hs-varid'>toBitVector64</span><span class='hs-layout'>,</span>
<a name="line-27"></a> <span class='hs-varid'>fromBitVector64</span><span class='hs-layout'>)</span> <span class='hs-keyword'>where</span>
<a name="line-28"></a>
<a name="line-29"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Language</span><span class='hs-varop'>.</span><span class='hs-conid'>Haskell</span><span class='hs-varop'>.</span><span class='hs-conid'>TH</span><span class='hs-varop'>.</span><span class='hs-conid'>Lift</span>
<a name="line-30"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Int</span>
<a name="line-31"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Bits</span>
<a name="line-32"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Data</span> <span class='hs-layout'>(</span><span class='hs-conid'>Data</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-33"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Prelude</span> <span class='hs-varid'>hiding</span> <span class='hs-layout'>(</span><span class='hs-varid'>not</span><span class='hs-layout'>)</span>
<a name="line-34"></a>
<a name="line-35"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Param</span><span class='hs-varop'>.</span><span class='hs-conid'>FSVec</span> <span class='hs-layout'>(</span><span class='hs-conid'>FSVec</span><span class='hs-layout'>,</span> <span class='hs-varid'>reallyUnsafeVector</span><span class='hs-layout'>)</span>
<a name="line-36"></a><span class='hs-keyword'>import</span> <span class='hs-keyword'>qualified</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>Param</span><span class='hs-varop'>.</span><span class='hs-conid'>FSVec</span> <span class='hs-keyword'>as</span> <span class='hs-conid'>V</span>
<a name="line-37"></a><span class='hs-keyword'>import</span> <span class='hs-conid'>Data</span><span class='hs-varop'>.</span><span class='hs-conid'>TypeLevel</span><span class='hs-varop'>.</span><span class='hs-conid'>Num</span> <span class='hs-layout'>(</span><span class='hs-conid'>D8</span><span class='hs-layout'>,</span><span class='hs-conid'>D16</span><span class='hs-layout'>,</span><span class='hs-conid'>D32</span><span class='hs-layout'>,</span><span class='hs-conid'>D64</span><span class='hs-layout'>,</span><span class='hs-conid'>Nat</span><span class='hs-layout'>)</span>
<a name="line-38"></a>
<a name="line-39"></a><a name="Bit"></a><span class='hs-keyword'>data</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>H</span> <span class='hs-comment'>-- ^ High value </span>
<a name="line-40"></a> <span class='hs-keyglyph'>|</span> <span class='hs-conid'>L</span> <span class='hs-comment'>-- ^ Low value</span>
<a name="line-41"></a> <span class='hs-keyword'>deriving</span> <span class='hs-layout'>(</span><span class='hs-conid'>Eq</span><span class='hs-layout'>,</span> <span class='hs-conid'>Show</span><span class='hs-layout'>,</span> <span class='hs-conid'>Data</span><span class='hs-layout'>,</span> <span class='hs-conid'>Typeable</span><span class='hs-layout'>)</span>
<a name="line-42"></a>
<a name="line-43"></a><span class='hs-varop'>$</span><span class='hs-layout'>(</span><span class='hs-varid'>deriveLift1</span> <span class='hs-chr'>'</span><span class='hs-chr'>'</span><span class='hs-conid'>Bit</span><span class='hs-layout'>)</span>
<a name="line-44"></a>
<a name="line-45"></a><a name="not"></a><span class='hs-comment'>-- | Not operation over bits</span>
<a name="line-46"></a><span class='hs-definition'>not</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bit</span>
<a name="line-47"></a><span class='hs-definition'>not</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>complement</span>
<a name="line-48"></a>
<a name="line-49"></a>
<a name="line-50"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Bits</span> <span class='hs-conid'>Bit</span> <span class='hs-keyword'>where</span>
<a name="line-51"></a> <span class='hs-conid'>H</span> <span class='hs-varop'>.&.</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-52"></a> <span class='hs-conid'>L</span> <span class='hs-varop'>.&.</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span>
<a name="line-53"></a> <span class='hs-conid'>H</span> <span class='hs-varop'>.|.</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>H</span>
<a name="line-54"></a> <span class='hs-conid'>L</span> <span class='hs-varop'>.|.</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-55"></a> <span class='hs-varid'>xor</span> <span class='hs-conid'>H</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>H</span>
<a name="line-56"></a> <span class='hs-varid'>xor</span> <span class='hs-conid'>L</span> <span class='hs-conid'>H</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>H</span>
<a name="line-57"></a> <span class='hs-varid'>xor</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span>
<a name="line-58"></a> <span class='hs-varid'>complement</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>H</span>
<a name="line-59"></a> <span class='hs-varid'>complement</span> <span class='hs-conid'>H</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span>
<a name="line-60"></a> <span class='hs-varid'>shift</span> <span class='hs-varid'>x</span> <span class='hs-num'>0</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-61"></a> <span class='hs-varid'>shift</span> <span class='hs-keyword'>_</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span>
<a name="line-62"></a> <span class='hs-varid'>rotate</span> <span class='hs-varid'>x</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-63"></a> <span class='hs-varid'>bitSize</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-num'>1</span>
<a name="line-64"></a> <span class='hs-varid'>isSigned</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-65"></a>
<a name="line-66"></a>
<a name="line-67"></a><span class='hs-comment'>-- Phony instance of Num</span>
<a name="line-68"></a><span class='hs-keyword'>instance</span> <span class='hs-conid'>Num</span> <span class='hs-conid'>Bit</span> <span class='hs-keyword'>where</span>
<a name="line-69"></a> <span class='hs-conid'>H</span> <span class='hs-varop'>+</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>H</span>
<a name="line-70"></a> <span class='hs-conid'>H</span> <span class='hs-varop'>+</span> <span class='hs-conid'>H</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span>
<a name="line-71"></a> <span class='hs-conid'>L</span> <span class='hs-varop'>+</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>x</span>
<a name="line-72"></a> <span class='hs-comment'>-- since they are unsigned and there are only two elements, (-) == (+)</span>
<a name="line-73"></a> <span class='hs-layout'>(</span><span class='hs-comment'>-</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varop'>+</span><span class='hs-layout'>)</span>
<a name="line-74"></a> <span class='hs-comment'>-- multiplication is equivalent to (.&.)</span>
<a name="line-75"></a> <span class='hs-layout'>(</span><span class='hs-varop'>*</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varop'>.&.</span><span class='hs-layout'>)</span>
<a name="line-76"></a> <span class='hs-comment'>-- since a bit is unsigned, it is equivalent to identity</span>
<a name="line-77"></a> <span class='hs-varid'>abs</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>id</span>
<a name="line-78"></a> <span class='hs-varid'>signum</span> <span class='hs-keyword'>_</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span>
<a name="line-79"></a> <span class='hs-varid'>fromInteger</span> <span class='hs-varid'>n</span> <span class='hs-keyglyph'>=</span> <span class='hs-keyword'>if</span> <span class='hs-varid'>n</span><span class='hs-varop'><=</span><span class='hs-num'>0</span> <span class='hs-keyword'>then</span> <span class='hs-conid'>L</span> <span class='hs-keyword'>else</span> <span class='hs-conid'>H</span>
<a name="line-80"></a>
<a name="line-81"></a><a name="bitToBool"></a><span class='hs-comment'>-- | Convert a bit to a boolean</span>
<a name="line-82"></a><span class='hs-definition'>bitToBool</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bool</span>
<a name="line-83"></a><span class='hs-definition'>bitToBool</span> <span class='hs-conid'>H</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>True</span>
<a name="line-84"></a><span class='hs-definition'>bitToBool</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>False</span>
<a name="line-85"></a>
<a name="line-86"></a><a name="boolToBit"></a><span class='hs-comment'>-- | Convert a boolean to a bit</span>
<a name="line-87"></a><span class='hs-definition'>boolToBit</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bool</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Bit</span>
<a name="line-88"></a><span class='hs-definition'>boolToBit</span> <span class='hs-conid'>True</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>H</span>
<a name="line-89"></a><span class='hs-definition'>boolToBit</span> <span class='hs-conid'>False</span> <span class='hs-keyglyph'>=</span> <span class='hs-conid'>L</span>
<a name="line-90"></a>
<a name="line-91"></a><a name="toBitVector8"></a><span class='hs-definition'>toBitVector8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int8</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D8</span> <span class='hs-conid'>Bit</span>
<a name="line-92"></a><span class='hs-definition'>toBitVector8</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reallyUnsafeToBitVector</span>
<a name="line-93"></a>
<a name="line-94"></a><a name="fromBitVector8"></a><span class='hs-definition'>fromBitVector8</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D8</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int8</span>
<a name="line-95"></a><span class='hs-definition'>fromBitVector8</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromBitVectorDef</span> <span class='hs-num'>0</span>
<a name="line-96"></a>
<a name="line-97"></a>
<a name="line-98"></a><a name="toBitVector16"></a><span class='hs-definition'>toBitVector16</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int16</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D16</span> <span class='hs-conid'>Bit</span>
<a name="line-99"></a><span class='hs-definition'>toBitVector16</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reallyUnsafeToBitVector</span>
<a name="line-100"></a>
<a name="line-101"></a><a name="fromBitVector16"></a><span class='hs-definition'>fromBitVector16</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D16</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int16</span>
<a name="line-102"></a><span class='hs-definition'>fromBitVector16</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromBitVectorDef</span> <span class='hs-num'>0</span>
<a name="line-103"></a>
<a name="line-104"></a>
<a name="line-105"></a><a name="toBitVector32"></a><span class='hs-definition'>toBitVector32</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int32</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D32</span> <span class='hs-conid'>Bit</span>
<a name="line-106"></a><span class='hs-definition'>toBitVector32</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reallyUnsafeToBitVector</span>
<a name="line-107"></a>
<a name="line-108"></a><a name="fromBitVector32"></a><span class='hs-definition'>fromBitVector32</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D32</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int32</span>
<a name="line-109"></a><span class='hs-definition'>fromBitVector32</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromBitVectorDef</span> <span class='hs-num'>0</span>
<a name="line-110"></a>
<a name="line-111"></a>
<a name="line-112"></a><a name="toBitVector64"></a><span class='hs-definition'>toBitVector64</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Int64</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D64</span> <span class='hs-conid'>Bit</span>
<a name="line-113"></a><span class='hs-definition'>toBitVector64</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>reallyUnsafeToBitVector</span>
<a name="line-114"></a>
<a name="line-115"></a><a name="fromBitVector64"></a><span class='hs-definition'>fromBitVector64</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>FSVec</span> <span class='hs-conid'>D64</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>Int64</span>
<a name="line-116"></a><span class='hs-definition'>fromBitVector64</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fromBitVectorDef</span> <span class='hs-num'>0</span>
<a name="line-117"></a>
<a name="line-118"></a>
<a name="line-119"></a><span class='hs-comment'>{- This would have been much more convenient
<a name="line-120"></a> But it makes things really complicated int he VHDL
<a name="line-121"></a> backend
<a name="line-122"></a>
<a name="line-123"></a>-- | Datatypes which can be converted to and from
<a name="line-124"></a>-- vectors of bits
<a name="line-125"></a>class BitStream d s | d -> s where
<a name="line-126"></a> -- | convert a data type to a bit vector
<a name="line-127"></a> toBitVector :: d -> FSVec s Bit
<a name="line-128"></a> -- | get a datatype from a bit vector
<a name="line-129"></a> fromBitVector :: FSVec s Bit -> d
<a name="line-130"></a>
<a name="line-131"></a>instance BitStream Int8 D8 where
<a name="line-132"></a> toBitVector = reallyUnsafeToBitVector
<a name="line-133"></a> fromBitVector = fromBitVectorDef 0
<a name="line-134"></a>
<a name="line-135"></a>
<a name="line-136"></a>instance BitStream Int16 D16 where
<a name="line-137"></a> toBitVector = reallyUnsafeToBitVector
<a name="line-138"></a> fromBitVector = fromBitVectorDef 0
<a name="line-139"></a>
<a name="line-140"></a>
<a name="line-141"></a>instance BitStream Int32 D32 where
<a name="line-142"></a> toBitVector = reallyUnsafeToBitVector
<a name="line-143"></a> fromBitVector = fromBitVectorDef 0
<a name="line-144"></a>
<a name="line-145"></a>
<a name="line-146"></a>instance BitStream Int64 D64 where
<a name="line-147"></a> toBitVector = reallyUnsafeToBitVector
<a name="line-148"></a> fromBitVector = fromBitVectorDef 0
<a name="line-149"></a>-}</span>
<a name="line-150"></a>
<a name="line-151"></a><a name="reallyUnsafeToBitVector"></a><span class='hs-comment'>-------------------</span>
<a name="line-152"></a><span class='hs-comment'>-- Helper functions</span>
<a name="line-153"></a><span class='hs-comment'>-------------------</span>
<a name="line-154"></a><span class='hs-definition'>reallyUnsafeToBitVector</span> <span class='hs-keyglyph'>::</span> <span class='hs-conid'>Bits</span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FSVec</span> <span class='hs-varid'>s</span> <span class='hs-conid'>Bit</span>
<a name="line-155"></a><span class='hs-definition'>reallyUnsafeToBitVector</span> <span class='hs-varid'>x</span> <span class='hs-keyglyph'>=</span>
<a name="line-156"></a> <span class='hs-varid'>reallyUnsafeVector</span> <span class='hs-varop'>$</span> <span class='hs-varid'>map</span> <span class='hs-layout'>(</span><span class='hs-varid'>boolToBit</span><span class='hs-varop'>.</span><span class='hs-layout'>(</span><span class='hs-varid'>testBit</span> <span class='hs-varid'>x</span><span class='hs-layout'>)</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>[</span><span class='hs-varid'>size</span><span class='hs-comment'>-</span><span class='hs-num'>1</span><span class='hs-layout'>,</span><span class='hs-varid'>size</span><span class='hs-comment'>-</span><span class='hs-num'>2</span><span class='hs-keyglyph'>..</span><span class='hs-num'>0</span><span class='hs-keyglyph'>]</span>
<a name="line-157"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>size</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>bitSize</span> <span class='hs-varid'>x</span>
<a name="line-158"></a>
<a name="line-159"></a><a name="fromBitVectorDef"></a><span class='hs-comment'>-- | version of fromBitVector supplying a default initial value from which to </span>
<a name="line-160"></a><span class='hs-comment'>-- start working</span>
<a name="line-161"></a><span class='hs-definition'>fromBitVectorDef</span> <span class='hs-keyglyph'>::</span> <span class='hs-layout'>(</span><span class='hs-conid'>Bits</span> <span class='hs-varid'>a</span><span class='hs-layout'>,</span> <span class='hs-conid'>Nat</span> <span class='hs-varid'>s</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=></span> <span class='hs-varid'>a</span> <span class='hs-keyglyph'>-></span> <span class='hs-conid'>FSVec</span> <span class='hs-varid'>s</span> <span class='hs-conid'>Bit</span> <span class='hs-keyglyph'>-></span> <span class='hs-varid'>a</span>
<a name="line-162"></a><span class='hs-definition'>fromBitVectorDef</span> <span class='hs-varid'>def</span> <span class='hs-varid'>vec</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>fst</span> <span class='hs-varop'>$</span> <span class='hs-conid'>V</span><span class='hs-varop'>.</span><span class='hs-varid'>foldr</span> <span class='hs-varid'>f</span> <span class='hs-layout'>(</span><span class='hs-varid'>def</span><span class='hs-layout'>,</span> <span class='hs-num'>0</span><span class='hs-layout'>)</span> <span class='hs-varid'>vec</span>
<a name="line-163"></a> <span class='hs-keyword'>where</span> <span class='hs-varid'>f</span> <span class='hs-varid'>e</span> <span class='hs-layout'>(</span><span class='hs-varid'>ac</span><span class='hs-layout'>,</span> <span class='hs-varid'>pos</span><span class='hs-layout'>)</span> <span class='hs-keyglyph'>=</span> <span class='hs-layout'>(</span><span class='hs-varid'>copyBit</span> <span class='hs-varid'>e</span> <span class='hs-varid'>ac</span> <span class='hs-varid'>pos</span><span class='hs-layout'>,</span> <span class='hs-varid'>pos</span><span class='hs-varop'>+</span><span class='hs-num'>1</span><span class='hs-layout'>)</span>
<a name="line-164"></a> <span class='hs-varid'>copyBit</span> <span class='hs-conid'>H</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>setBit</span>
<a name="line-165"></a> <span class='hs-varid'>copyBit</span> <span class='hs-conid'>L</span> <span class='hs-keyglyph'>=</span> <span class='hs-varid'>clearBit</span>
<a name="line-166"></a>
<a name="line-167"></a>
<a name="line-168"></a>
<a name="line-169"></a>
</pre></body>
</html>
distrib
>
Fedora
>
14
>
x86_64
>
media
>
updates
>
by-pkgid
>
a47f0719970f9f829128f311a437816d
>
files
>
317
