This file is indexed.

/usr/share/tkgate/doc/index.html is in tkgate-doc 2.0~b10-4ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
<HTML>
<HEAD>
   <TITLE>TKGate User Documentation (Index)</TITLE>
    <META http-equiv="Content-Style-Type" content="text/css">
    <link rel="stylesheet" href="tkgate.css" type="text/css">
</HEAD>
<BODY>

<table>
<tr>
<td><IMG SRC="fig/biggatelogo.gif"  WIDTH=262 HEIGHT=220></td><td></td>
<td><H1>TKGate 2.0</H1>
<p>
    Copyright (C) 1987-2007 by Jeffery P. Hansen
<p>
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
<p>

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
<p>
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
</td>
</tr>
</table>

<HR WIDTH="100%">
<P>TkGate is a graphical editor and&nbsp; event-driven simulator for digital
circuits with a tcl/tk-based interface.&nbsp; Supported circuit elements
include basic gates (AND, OR, etc.), tri-state gates, adders, multipliers,
registers, memories and mos transistors.&nbsp; Hierarchical design is also
supported with support for user defined modules.&nbsp; Save files are based
on the Verilog netlist format.

<BR>&nbsp;

<H2>Contents:</H2>

<OL>
<LI><A HREF="gateIntro.html">Introduction to TkGate</A>
<ul style="list-style-type: none;">
<li> <a href="gateIntro.html#cloptions">1.1 Command Line Options</a>
<li> <a href="gateIntro.html#history">1.2 History of TkGate</a>
</ul>

<LI><A HREF="gateEdit.html">Using the Editor</A>
<UL style="list-style-type: none;">
<LI><A HREF="gateEdit.html#understand">2.1 Understanding the TKGate Interface</A>
<LI><A HREF="gateEdit.html#loadsave">2.2 Loading and Saving Circuits</A>
<LI><A HREF="gateEdit.html#loadlib">2.3 Loading Libraries</A>
<LI><A HREF="gateEdit.html#tools">2.4 Basic Editing Tools</A>
<LI><A HREF="gateEdit.html#gateprops">2.5 Gate Properties</A>
<LI><A HREF="gateEdit.html#wireprops">2.6 Wire Properties</A>
<LI><A HREF="gateEdit.html#labels">2.7 Wire Name and Bit-Size Labels</A>
<LI><A HREF="gateEdit.html#search">2.8 Searching for Gates and Wires</A>
<LI><A HREF="gateEdit.html#links">2.9 HTML in Comments</A>
<LI><A HREF="gateEdit.html#print">2.10 Printing a Schematic</A>
<LI><A HREF="gateEdit.html#circopt">2.11 Circuit Properties</A>
</UL>

<LI>
<A HREF="gateModules.html">Working with Modules</A>
<ul style="list-style-type: none;">
<li><A HREF="gateModules.html#intro">3.1 Modules Implementations versus Module Instances</A>
<li><A HREF="gateModules.html#instances">3.2 Creating Module Instances</A>
<li><A HREF="gateModules.html#hierarchy">3.3 Module Hierarchy</A>
<li><A HREF="gateModules.html#create">3.4 Creating and Manipulating Modules</A>
<li><A HREF="gateModules.html#definitions">3.5 Editing Module Definitions</A>
<li><A HREF="gateModules.html#interfaces">3.6 Editing Module Interfaces</A>
</ul>

<LI>
<A HREF="gateHDL.html">HDL Modules</A>
<UL style="list-style-type: none;">
<LI><A HREF="gateHDL.html#hdlmain">4.1 HDL Editor Window</a>
<LI><A HREF="gateHDL.html#basics">4.2 Verilog Basics</a>
<LI><A HREF="gateHDL.html#wiretypes">4.3 Data Types</a>
<LI><A HREF="gateHDL.html#expressions">4.4 Expressions</a>
<LI><A HREF="gateHDL.html#directives">4.5 Compiler Directives</a>
<LI><A HREF="gateHDL.html#modules">4.6 Module Declarations</a>
<LI><A HREF="gateHDL.html#netlist">4.7 Netlist Modules</a>
<LI><A HREF="gateHDL.html#behavioral">4.8 Behavioral Modules</a>
<LI><A HREF="gateHDL.html#parameters">4.9 Module Parameters</a>
<LI><A HREF="gateHDL.html#specify">4.10 Specify Blocks</a>
</ul>

<LI>
<A HREF="gateSim.html">Using the Simulator with TkGate</A>

<UL style="list-style-type: none;">
<LI><A HREF="gateSim.html#start">5.1 Starting the Simulator</a>
<LI><A HREF="gateSim.html#output">5.2 Observing the Output</a>
<LI><A HREF="gateSim.html#input">5.3 Controlling the Input</a>
<LI><A HREF="gateSim.html#breakpoint">5.4 Setting Breakpoints</a>
<LI><A HREF="gateSim.html#memory">5.5 Initializing Memories</a>
<LI><A HREF="gateSim.html#script">5.6 Simulation Scripts</a>
<LI><A HREF="gateSim.html#error">5.7 Using the Error Reporter</a>
<LI><A HREF="gateSim.html#delay">5.8 Gate Delay Files</a>
</UL>

<LI>
<A HREF="gateGmac.html">Gate Microcode and Assembly Compiler (gmac)</a>

<ul style="list-style-type: none;">
<li><A HREF="gateGmac.html#banks">6.1 Defining Memory Banks</a></li>
<li><A HREF="gateGmac.html#microinst">6.2 Defining the Micro-Instruction Set</a></li>
<li><A HREF="gateGmac.html#microprog">6.3 Writing the Micro-Program</a></li>
<li><A HREF="gateGmac.html#macroinst">6.4 Defining the Macro-Instruction Set</a></li>
<li><A HREF="gateGmac.html#macroprog">6.5 Writing the Macro-Program</a></li>
</ul>

<LI>
<A HREF="vpdCreation.html">Making Virtual Peripheral Devices (VPDs) </a>
<ul style="list-style-type: none;">
<li><A HREF="vpdCreation.html#overview">7.1 Overview of Virtual Peripheral Device Design</a>
<li><A HREF="vpdCreation.html#installing">7.2 Installing VPDs</a>
<li><A HREF="vpdCreation.html#tclside">7.3 The Tcl-Side Interface</a>
<li><A HREF="vpdCreation.html#verilogside">7.4 The Verilog-Side Interface</a>
</ul>

<LI>
<A HREF="gateOptions.html">Setting TkGate Options </a>
<ul style="list-style-type: none;">
<li><A HREF="gateOptions.html#general">8.1 General Options</a>
<li><A HREF="gateOptions.html#interface">8.2 Interface Options</a>
<li><A HREF="gateOptions.html#toolbar">8.3 Toolbar Options</a>
<li><A HREF="gateOptions.html#hdl">8.4 HDL Options</a>
<li><A HREF="gateOptions.html#print">8.5 Print Options</a>
<li><A HREF="gateOptions.html#simulate">8.6 Simulate Options</a>
<li><A HREF="gateOptions.html#library">8.7 Library Options</a>
<li><A HREF="gateOptions.html#security">8.8 Security Options</a>
<li><A HREF="gateOptions.html#color">8.9 Color Options</a>
<li><A HREF="gateOptions.html#html">8.10 HTML Options</a>
</ul>

<li>
<A HREF="gateLibrary.html">TkGate Library Components </a>
<ul style="list-style-type: none;">
<li><A HREF="gateLibrary.html#tty">9.1 TTYs</a>
<li><A HREF="gateLibrary.html#drink">9.2 Drink Machine</a>
<li><A HREF="gateLibrary.html#timer">9.3 Timers and One-Shots</a>
<li><A HREF="gateLibrary.html#ttl">9.4 TTL Devices</a>
</li>

</ol>

<h5>Appendices</h5>

<ol style="list-style-type: upper-alpha;">
<li> <a href="gateTypeList.html">List of Built-In Gate Types</a>
<li> <a href="systemTasks.html">List of System Tasks</a>
<li> <a href="simErrors.html">List of Simulator Error Messages</a>
<li> <a href="verga.html">Using the Verga Simulator in Stand-Alone Mode</a>
<li> <a href="menagerie.html">Sample Gmac Input File</a>
</ol>

<ol style="list-style-type: upper-alpha;">

</BODY>
</HTML>