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1 files changed, 407 insertions, 0 deletions

diff --git a/ANSI_C_Programming_by_Yashwant_Kanetkar/chapter14.ipynb b/ANSI_C_Programming_by_Yashwant_Kanetkar/chapter14.ipynb
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+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:e28261ed5c0b0cf7c10e8c91bd2debc8e99bf24519225a056fc19ed619f1e95d"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "CHAPTER 14: OPERATIONS ON BITS"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:449"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "def showbits(x):\n",
+      "    return bin(x)[2:].zfill(16)\n",
+      "for j in range(0,6,1):\n",
+      "    print \"Decimal %d is same as binary\" % (j)\n",
+      "    print showbits(j)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Decimal 0 is same as binary\n",
+        "0000000000000000\n",
+        "Decimal 1 is same as binary\n",
+        "0000000000000001\n",
+        "Decimal 2 is same as binary\n",
+        "0000000000000010\n",
+        "Decimal 3 is same as binary\n",
+        "0000000000000011\n",
+        "Decimal 4 is same as binary\n",
+        "0000000000000100\n",
+        "Decimal 5 is same as binary\n",
+        "0000000000000101\n"
+       ]
+      }
+     ],
+     "prompt_number": 2
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:450"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "def showbits(x):\n",
+      "    return bin(x)[2:].zfill(16)\n",
+      "for j in range(0,4,1):\n",
+      "    print \"Decimal %d is same as binary\" % (j)\n",
+      "    print showbits(j)\n",
+      "    k=j^65535                                       #using xor for making one's complement\n",
+      "    print \"One's complement of %d is\" % (j)\n",
+      "    print showbits(k)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Decimal 0 is same as binary\n",
+        "0000000000000000\n",
+        "One's complement of 0 is\n",
+        "1111111111111111\n",
+        "Decimal 1 is same as binary\n",
+        "0000000000000001\n",
+        "One's complement of 1 is\n",
+        "1111111111111110\n",
+        "Decimal 2 is same as binary\n",
+        "0000000000000010\n",
+        "One's complement of 2 is\n",
+        "1111111111111101\n",
+        "Decimal 3 is same as binary\n",
+        "0000000000000011\n",
+        "One's complement of 3 is\n",
+        "1111111111111100\n"
+       ]
+      }
+     ],
+     "prompt_number": 15
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:451"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "import sys\n",
+      "def encrypt():\n",
+      "    try:\n",
+      "        fs=open('SOURCE.txt','r')               #normal file\n",
+      "        ft=open('TARGET.txt','w')               #encrypted file\n",
+      "    except:\n",
+      "        print \"File opening error!\"\n",
+      "        sys.exit(1)\n",
+      "    while True:\n",
+      "        ch=fs.read(1)\n",
+      "        if not ch:\n",
+      "            break\n",
+      "        ft.write(bytearray([ord(ch)^0xff]))\n",
+      "    fs.close()\n",
+      "    ft.close()\n",
+      "encrypt()"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:452"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "def showbits(x):\n",
+      "    return bin(x)[2:].zfill(16)\n",
+      "i=5225\n",
+      "print \"Decimal %d is same as binary\" % (i)\n",
+      "print showbits(i)\n",
+      "for j in range(0,6,1):\n",
+      "    k=i>>j                                              #right shift operator\n",
+      "    print \"%d right shift %d gives\" % (i,j)\n",
+      "    print showbits(k)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Decimal 5225 is same as binary\n",
+        "0001010001101001\n",
+        "5225 right shift 0 gives\n",
+        "0001010001101001\n",
+        "5225 right shift 1 gives\n",
+        "0000101000110100\n",
+        "5225 right shift 2 gives\n",
+        "0000010100011010\n",
+        "5225 right shift 3 gives\n",
+        "0000001010001101\n",
+        "5225 right shift 4 gives\n",
+        "0000000101000110\n",
+        "5225 right shift 5 gives\n",
+        "0000000010100011\n"
+       ]
+      }
+     ],
+     "prompt_number": 3
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:453-454"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "def showbits(x):\n",
+      "    return bin(x)[2:].zfill(16)\n",
+      "i=5225\n",
+      "print \"Decimal %d is same as binary\" % (i)\n",
+      "print showbits(i)\n",
+      "for j in range(0,5,1):\n",
+      "    mask = 2 ** 16 - 1\n",
+      "    k = (i << j) & mask                               #left shift operator\n",
+      "    print \"%d right shift %d gives\" % (i,j)\n",
+      "    print showbits(k)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Decimal 5225 is same as binary\n",
+        "0001010001101001\n",
+        "5225 right shift 0 gives\n",
+        "0001010001101001\n",
+        "5225 right shift 1 gives\n",
+        "0010100011010010\n",
+        "5225 right shift 2 gives\n",
+        "0101000110100100\n",
+        "5225 right shift 3 gives\n",
+        "1010001101001000\n",
+        "5225 right shift 4 gives\n",
+        "0100011010010000\n"
+       ]
+      }
+     ],
+     "prompt_number": 4
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:457-458"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "d=9\n",
+      "m=3\n",
+      "y=1990\n",
+      "date=(y-1980)*512+m*32+d\n",
+      "print \"Date=%u\\n\" % (date)\n",
+      "year=1980+(date>>9)\n",
+      "month=((date<<7)>>12)\n",
+      "day=((date<<11)>>11)\n",
+      "print \"Year=%u\" % (year)\n",
+      "print \"Month=%u\" % (month)\n",
+      "print \"Day=%u\" % (day)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Date=5225\n",
+        "\n",
+        "Year=1990\n",
+        "Month=163\n",
+        "Day=5225\n"
+       ]
+      }
+     ],
+     "prompt_number": 11
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:460"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "i=65\n",
+      "print \"Value of i=%d\\n\" % (i)\n",
+      "j=i&32\n",
+      "if j==0:\n",
+      "    print \"and its fifth bit is off\\n\"\n",
+      "else:\n",
+      "    print \"and its fifth bit is on\\n\"\n",
+      "j=i&64\n",
+      "if j==0:\n",
+      "    print \"whereas its sixth bit is off\\n\"\n",
+      "else:\n",
+      "    print \"whereas its sixth bit is on\\n\""
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Value of i=65\n",
+        "\n",
+        "and its fifth bit is off\n",
+        "\n",
+        "whereas its sixth bit is on\n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:463"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "b=50\n",
+      "b=b^12                            #XOR operator\n",
+      "print \"%d\\n\" % (b)                #this will print 62\n",
+      "b=b^12\n",
+      "print \"%d\\n\" % (b)                #this will print 50"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "62\n",
+        "\n",
+        "50\n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 13
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "EXAMPLE ON PAGE:463-464"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " \n",
+      "def showbit(n):\n",
+      "    for i in range(15,-1,-1):\n",
+      "        andmask=1<<i\n",
+      "        k=n&andmask\n",
+      "        if k==0:\n",
+      "            print 0,  \n",
+      "        else:\n",
+      "            print 1, \n",
+      "    print \"\\n\"\n",
+      "showbit(32)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 \n",
+        "\n"
+       ]
+      }
+     ],
+     "prompt_number": 14
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
\ No newline at end of file