fceux/help/PPUViewer.html

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				<h1>PPU Viewer</h1>
				
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					<a href="Debug.html">Debug</a> &rsaquo;&rsaquo; </div>
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<p></p>
<p><span class="rvts17">PPU Viewer</span></p>
<p><br/></p>
<p><br/></p>
<p><span class="rvts12">Introduction</span></p>
<p><br/></p>
<p>The NES architecture includes a 6502 CPU as well as a custom video controller known as a PPU (Picture Processing Unit). &nbsp;The PPU's video memory is separated from the main CPU memory and can be read/written via special ports (see <a class="rvts18" href="PPU.html">PPU Memory</a>).</p>
<p><br/></p>
<p>The PPU viewer will only display the contents of the current PPU memory. It does not alter game data in any way.</p>
<p><br/></p>
<p><br/></p>
<p><span class="rvts16">Using PPU Viewer</span></p>
<p><br/></p>
<p><span class="rvts10">Show on Scanline</span></p>
<p>This options makes it show what the PPU looks like when the screen is drawing that particular scanline. It is useful for games like SMB, that swap pattern tables mid-frame (e.g. for status bar stuff).</p>
<p><br/></p>
<p>Right clicking on one of the PPU panels will change the palette it is shown with, cycling though pattern palettes and then sprite ones.</p>
<p>Putting the mouse cursor over a tile will display the tile address. Moving cursor over palette color will give palette address.</p>
<p><br/></p>
<p>When <a class="rvts18" href="CodeDataLogger.html">Code/Data Logger</a> is running, you can also use the "Mask unused graphics" feature. Alternatively, you can only mask tiles that were used (drawn or otherwise accessed) and emphasize the tiles that weren't used (e.g. in order to find secret sprites).</p>
<p>Note: this feature only works with games that use CHR ROM, because Code/Data Logger only logs accesses to CHR ROM.</p>
<p><br/></p>
<p><br/></p>
<p><br/></p>
<p><br/></p>
<p><br/></p>
<p><br/></p>
<p><br/></p>
<p><br/></p>
<p><br/></p>
<p></p>
<p class="rvps2"><span class="rvts13">Created with the Personal Edition of HelpNDoc: </span><a class="rvts14" href="http://www.helpndoc.com/create-epub-ebooks">Produce electronic books easily</a></p>
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				2013</div>
		</div>
	</body>
	
</html>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+								<html>
 								<head>
 									<title>PPU Viewer</title>
 									<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2013-09-05 15:15:17 +00:00
+								    <meta name="generator" content="HelpNDoc Personal Edition 3.9.1.648">
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+									<link type="text/css" rel="stylesheet" media="all" href="css/reset.css" />
 									<link type="text/css" rel="stylesheet" media="all" href="css/base.css" />
 									<link type="text/css" rel="stylesheet" media="all" href="css/hnd.css" />
 									<!--[if lte IE 8]>
 										<link type="text/css" rel="stylesheet" media="all" href="css/ielte8.css" />
 									<![endif]-->
-												* updated docs
* new hotkey "Run Manual Lua function" (not mapped by default)
* Taseditor: general cleanup of codebase

[[Split portion of a mixed commit.]]

											
										
										
											2012-07-01 14:11:24 +00:00
+									<style type="text/css">
 										#topic_header
 										{
 											background-color: #EFEFEF;
 										}
 									</style>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+									<script type="text/javascript" src="js/jquery.min.js"></script>
 									<script type="text/javascript" src="js/hnd.js"></script>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2012-08-08 15:00:14 +00:00
+									<script type="text/javascript">
-												updated docs and changed version to 2.2.0

[[Split portion of a mixed commit.]]

											
										
										
											2012-11-27 17:03:56 +00:00
+										$(document).ready(function()
-												* updated docs
* new hotkey "Run Manual Lua function" (not mapped by default)
* Taseditor: general cleanup of codebase

[[Split portion of a mixed commit.]]

											
										
										
											2012-07-01 14:11:24 +00:00
+										{
-												updated docs and changed version to 2.2.0

[[Split portion of a mixed commit.]]

											
										
										
											2012-11-27 17:03:56 +00:00
+											if (top.frames.length == 0)
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-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+									</script>
 								</head>
 								<body>
 									<div id="topic_header">
 											<div id="topic_header_content">
 												<h1>PPU Viewer</h1>
 												<div id="topic_breadcrumb">
 													<a href="Debug.html">Debug</a> &rsaquo;&rsaquo; </div>
 												</div>
 											<div id="topic_header_nav">
 												<a href="Debug.html"><img src="img/arrow_up.png" alt="Parent"/></a>
 												<a href="Debugger.html"><img src="img/arrow_left.png" alt="Previous"/></a>
 												<a href="NameTableViewer.html"><img src="img/arrow_right.png" alt="Next"/></a>
 												</div>
 											<div class="clear"></div>
 										</div>
 									<div id="topic_content">
-												updated docs and changed version to 2.2.0

[[Split portion of a mixed commit.]]

											
										
										
											2012-11-27 17:03:56 +00:00
+								<p></p>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+								<p><span class="rvts17">PPU Viewer</span></p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2012-08-08 15:00:14 +00:00
+								<p><br/></p>
 								<p><br/></p>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+								<p><span class="rvts12">Introduction</span></p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2012-08-08 15:00:14 +00:00
+								<p><br/></p>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+								<p>The NES architecture includes a 6502 CPU as well as a custom video controller known as a PPU (Picture Processing Unit). &nbsp;The PPU's video memory is separated from the main CPU memory and can be read/written via special ports (see <a class="rvts18" href="PPU.html">PPU Memory</a>).</p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2012-08-08 15:00:14 +00:00
+								<p><br/></p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2013-09-22 18:54:01 +00:00
+								<p>The PPU viewer will only display the contents of the current PPU memory. It does not alter game data in any way.</p>
 								<p><br/></p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2012-08-08 15:00:14 +00:00
+								<p><br/></p>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+								<p><span class="rvts16">Using PPU Viewer</span></p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2012-08-08 15:00:14 +00:00
+								<p><br/></p>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+								<p><span class="rvts10">Show on Scanline</span></p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2013-09-22 18:54:01 +00:00
+								<p>This options makes it show what the PPU looks like when the screen is drawing that particular scanline. It is useful for games like SMB, that swap pattern tables mid-frame (e.g. for status bar stuff).</p>
 								<p><br/></p>
 								<p>Right clicking on one of the PPU panels will change the palette it is shown with, cycling though pattern palettes and then sprite ones.</p>
 								<p>Putting the mouse cursor over a tile will display the tile address. Moving cursor over palette color will give palette address.</p>
 								<p><br/></p>
 								<p>When <a class="rvts18" href="CodeDataLogger.html">Code/Data Logger</a> is running, you can also use the "Mask unused graphics" feature. Alternatively, you can only mask tiles that were used (drawn or otherwise accessed) and emphasize the tiles that weren't used (e.g. in order to find secret sprites).</p>
 								<p>Note: this feature only works with games that use CHR ROM, because Code/Data Logger only logs accesses to CHR ROM.</p>
 								<p><br/></p>
 								<p><br/></p>
 								<p><br/></p>
 								<p><br/></p>
 								<p><br/></p>
 								<p><br/></p>
 								<p><br/></p>
 								<p><br/></p>
-												updated docs

[[Split portion of a mixed commit.]]

											
										
										
											2012-08-08 15:00:14 +00:00
+								<p><br/></p>
-												updated docs and changed version to 2.2.0

[[Split portion of a mixed commit.]]

											
										
										
											2012-11-27 17:03:56 +00:00
+								<p></p>
 								<p class="rvps2"><span class="rvts13">Created with the Personal Edition of HelpNDoc: </span><a class="rvts14" href="http://www.helpndoc.com/create-epub-ebooks">Produce electronic books easily</a></p>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+								</div>
 									<div id="topic_footer">
 											<div id="topic_footer_content">
-												* added JumpingFCEUXWindow.lua
* updated docs
* Taseditor: some more cleanup

[[Split portion of a mixed commit.]]

											
										
										
											2013-03-09 14:04:01 +00:00
+</div>
-												updated documentation

											
										
										
											2012-03-23 20:30:31 +00:00
+										</div>
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