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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>aoOCS: control_osd.v Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.7.2 --> <div class="navigation" id="top"> <div class="tabs"> <ul class="tablist"> <li><a href="index.html"><span>Main Page</span></a></li> <li><a href="annotated.html"><span>Design Unit List</span></a></li> <li class="current"><a href="files.html"><span>Files</span></a></li> </ul> </div> <div class="tabs2"> <ul class="tablist"> <li><a href="files.html"><span>File List</span></a></li> <li><a href="globals.html"><span>File Members</span></a></li> </ul> </div> <div class="header"> <div class="headertitle"> <h1>control_osd.v</h1> </div> </div> <div class="contents"> <a href="control__osd_8v.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="keyword">/*</span> <a name="l00002"></a>00002 <span class="keyword"> Copyright 2010, Aleksander Osman, alfik@poczta.fm. All rights reserved.</span> <a name="l00003"></a>00003 <span class="keyword"> </span> <a name="l00004"></a>00004 <span class="keyword"> Redistribution and use in source and binary forms, with or without modification, are</span> <a name="l00005"></a>00005 <span class="keyword"> permitted provided that the following conditions are met:</span> <a name="l00006"></a>00006 <span class="keyword"> </span> <a name="l00007"></a>00007 <span class="keyword"> 1. Redistributions of source code must retain the above copyright notice, this list of</span> <a name="l00008"></a>00008 <span class="keyword"> conditions and the following disclaimer.</span> <a name="l00009"></a>00009 <span class="keyword"> </span> <a name="l00010"></a>00010 <span class="keyword"> 2. Redistributions in binary form must reproduce the above copyright notice, this list</span> <a name="l00011"></a>00011 <span class="keyword"> of conditions and the following disclaimer in the documentation and/or other materials</span> <a name="l00012"></a>00012 <span class="keyword"> provided with the distribution.</span> <a name="l00013"></a>00013 <span class="keyword"> </span> <a name="l00014"></a>00014 <span class="keyword"> THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED</span> <a name="l00015"></a>00015 <span class="keyword"> WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND</span> <a name="l00016"></a>00016 <span class="keyword"> FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR</span> <a name="l00017"></a>00017 <span class="keyword"> CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR</span> <a name="l00018"></a>00018 <span class="keyword"> CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR</span> <a name="l00019"></a>00019 <span class="keyword"> SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON</span> <a name="l00020"></a>00020 <span class="keyword"> ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING</span> <a name="l00021"></a>00021 <span class="keyword"> NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF</span> <a name="l00022"></a>00022 <span class="keyword"> ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span> <a name="l00023"></a>00023 <span class="keyword"> */</span> <a name="l00024"></a>00024 <a name="l00025"></a>00025 <span class="keyword">/*! \file</span> <a name="l00026"></a>00026 <span class="keyword"> \brief On-Screen-Display and overall system management.</span> <a name="l00027"></a>00027 <span class="keyword"> */</span> <a name="l00028"></a>00028 <a name="l00029"></a>00029 <span class="keyword">/*! \brief \copybrief control_osd.v</span> <a name="l00030"></a>00030 <span class="keyword">*/</span> <a name="l00031"></a><a class="code" href="classcontrol__osd.html">00031</a> <span class="vhdlkeyword">module</span> <a class="code" href="classcontrol__osd.html">control_osd</a>( <a name="l00032"></a>00032 <span class="keyword">//% \name Clock and reset </span> <a name="l00033"></a>00033 <span class="keyword">//% @{</span> <a name="l00034"></a><a class="code" href="classcontrol__osd.html#a6196377a3ab5559a513854cf1c3497b1">00034</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a6196377a3ab5559a513854cf1c3497b1">CLK_I</a>, <a name="l00035"></a><a class="code" href="classcontrol__osd.html#ae2085dff5bb31a3a9900c6835b2910b6">00035</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#ae2085dff5bb31a3a9900c6835b2910b6">reset_n</a>, <a name="l00036"></a><a class="code" href="classcontrol__osd.html#a8223f70b4b426d3e77f515261e41ab8a">00036</a> <span class="vhdlkeyword">output</span> <a class="code" href="classcontrol__osd.html#a8223f70b4b426d3e77f515261e41ab8a">reset_request</a>, <a name="l00037"></a><a class="code" href="classcontrol__osd.html#a6ce16bde3a7e3ca98e9f6f52f1d54b01">00037</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a6ce16bde3a7e3ca98e9f6f52f1d54b01">management_mode</a>, <a name="l00038"></a>00038 <span class="keyword">//% @}</span> <a name="l00039"></a>00039 <a name="l00040"></a>00040 <span class="keyword">//% \name WISHBONE master </span> <a name="l00041"></a>00041 <span class="keyword">//% @{</span> <a name="l00042"></a><a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">00042</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a>, <a name="l00043"></a><a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">00043</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a>, <a name="l00044"></a><a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">00044</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a>, <a name="l00045"></a><a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">00045</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">2</span>] <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a>, <a name="l00046"></a><a class="code" href="classcontrol__osd.html#a24402c2d7a2fc1858fe167338cc9acfe">00046</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a24402c2d7a2fc1858fe167338cc9acfe">SEL_O</a>, <a name="l00047"></a><a class="code" href="classcontrol__osd.html#ad3aa3632307fea5a411e849d00b16b6c">00047</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#ad3aa3632307fea5a411e849d00b16b6c">master_DAT_O</a>, <a name="l00048"></a><a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">00048</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a>, <a name="l00049"></a><a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">00049</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a>, <a name="l00050"></a>00050 <span class="keyword">//% @}</span> <a name="l00051"></a>00051 <a name="l00052"></a>00052 <span class="keyword">//% \name WISHBONE slave </span> <a name="l00053"></a>00053 <span class="keyword">//% @{</span> <a name="l00054"></a><a class="code" href="classcontrol__osd.html#a56bc5b958a26c2c44973bd0ccaea78e6">00054</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">2</span>] <a class="code" href="classcontrol__osd.html#a56bc5b958a26c2c44973bd0ccaea78e6">ADR_I</a>, <a name="l00055"></a><a class="code" href="classcontrol__osd.html#a0dfc269f92968a047cbffc059139de0a">00055</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a0dfc269f92968a047cbffc059139de0a">CYC_I</a>, <a name="l00056"></a><a class="code" href="classcontrol__osd.html#ac824a485e6b902923401ab73c7f03841">00056</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#ac824a485e6b902923401ab73c7f03841">WE_I</a>, <a name="l00057"></a><a class="code" href="classcontrol__osd.html#a13f03a265712c279b320063a9e70bf4c">00057</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a13f03a265712c279b320063a9e70bf4c">STB_I</a>, <a name="l00058"></a><a class="code" href="classcontrol__osd.html#a3f273553f9b5411f23b32b87bdf44e05">00058</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a3f273553f9b5411f23b32b87bdf44e05">SEL_I</a>, <a name="l00059"></a><a class="code" href="classcontrol__osd.html#a0f8f6133735ab74bebd3fa658840dd5b">00059</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a0f8f6133735ab74bebd3fa658840dd5b">slave_DAT_I</a>, <a name="l00060"></a><a class="code" href="classcontrol__osd.html#a9d424067b4ef414ecd8af6b01181d6de">00060</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a9d424067b4ef414ecd8af6b01181d6de">slave_DAT_O</a>, <a name="l00061"></a><a class="code" href="classcontrol__osd.html#af54eb8eee839999c0d1ec81f4ee83f05">00061</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#af54eb8eee839999c0d1ec81f4ee83f05">ACK_O</a>, <a name="l00062"></a><a class="code" href="classcontrol__osd.html#a7f8c8eee4fb11fb7be802f5ddd0bb23a">00062</a> <span class="vhdlkeyword">output</span> <a class="code" href="classcontrol__osd.html#a7f8c8eee4fb11fb7be802f5ddd0bb23a">RTY_O</a>, <a name="l00063"></a><a class="code" href="classcontrol__osd.html#a11c3ffc3667be7727fd18c8cd214f446">00063</a> <span class="vhdlkeyword">output</span> <a class="code" href="classcontrol__osd.html#a11c3ffc3667be7727fd18c8cd214f446">ERR_O</a>, <a name="l00064"></a>00064 <span class="keyword">//% @}</span> <a name="l00065"></a>00065 <a name="l00066"></a>00066 <span class="keyword">//% \name On-Screen-Display management interface </span> <a name="l00067"></a>00067 <span class="keyword">//% @{</span> <a name="l00068"></a><a class="code" href="classcontrol__osd.html#a630825280ca4da6c00f576507ad14bee">00068</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a630825280ca4da6c00f576507ad14bee">request_osd</a>, <a name="l00069"></a><a class="code" href="classcontrol__osd.html#a118dcc09c5966614c035a6fb16e232d8">00069</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a118dcc09c5966614c035a6fb16e232d8">on_screen_display</a>, <a name="l00070"></a>00070 <a name="l00071"></a><a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">00071</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">4</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a>, <a name="l00072"></a><a class="code" href="classcontrol__osd.html#ae5ebacc470598b8ba116db8eda10fddd">00072</a> <span class="vhdlkeyword">input</span> [<span class="vhdllogic">4</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#ae5ebacc470598b8ba116db8eda10fddd">osd_column</a>, <a name="l00073"></a><a class="code" href="classcontrol__osd.html#a47650aa230d01c3de6c7ff983c26f563">00073</a> <span class="vhdlkeyword">output</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a47650aa230d01c3de6c7ff983c26f563">character</a>, <a name="l00074"></a>00074 <a name="l00075"></a><a class="code" href="classcontrol__osd.html#aedcadd537ead33021c07902d18675670">00075</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#aedcadd537ead33021c07902d18675670">joystick_enable</a>, <a name="l00076"></a><a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">00076</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a>, <a name="l00077"></a><a class="code" href="classcontrol__osd.html#a30d42e8e9807db20a9955dcc733278e6">00077</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a30d42e8e9807db20a9955dcc733278e6">keyboard_up</a>, <a name="l00078"></a><a class="code" href="classcontrol__osd.html#a4cc4f2acf479b53f39e86fd22e1e0fbd">00078</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a4cc4f2acf479b53f39e86fd22e1e0fbd">keyboard_down</a>, <a name="l00079"></a>00079 <span class="keyword">//% @}</span> <a name="l00080"></a>00080 <a name="l00081"></a>00081 <span class="keyword">//% \name On-Screen-Display floppy management interface </span> <a name="l00082"></a>00082 <span class="keyword">//% @{</span> <a name="l00083"></a><a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">00083</a> <span class="vhdlkeyword">output</span> <a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a>, <a name="l00084"></a><a class="code" href="classcontrol__osd.html#a184b1277f2f2aaa469a1e45f183bf0b5">00084</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a184b1277f2f2aaa469a1e45f183bf0b5">floppy_sector</a>, <a name="l00085"></a><a class="code" href="classcontrol__osd.html#a1599e7ad96018cb8119f148f15f41e33">00085</a> <span class="vhdlkeyword">output</span> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a1599e7ad96018cb8119f148f15f41e33">floppy_write_enabled</a>, <a name="l00086"></a><a class="code" href="classcontrol__osd.html#a8d108655097a93e09690cd77d840fca4">00086</a> <span class="vhdlkeyword">input</span> <a class="code" href="classcontrol__osd.html#a8d108655097a93e09690cd77d840fca4">floppy_error</a> <a name="l00087"></a>00087 <span class="keyword">//% @}</span> <a name="l00088"></a>00088 ); <a name="l00089"></a>00089 <a name="l00090"></a>00090 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a11c3ffc3667be7727fd18c8cd214f446">ERR_O</a> = <span class="vhdllogic">1'b0</span>; <a name="l00091"></a>00091 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a7f8c8eee4fb11fb7be802f5ddd0bb23a">RTY_O</a> = <span class="vhdllogic">1'b0</span>; <a name="l00092"></a>00092 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a24402c2d7a2fc1858fe167338cc9acfe">SEL_O</a> = <span class="vhdllogic">4'b1111</span>; <a name="l00093"></a>00093 <a name="l00094"></a>00094 <span class="keyword">//****************** Display memory</span> <a name="l00095"></a><a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">00095</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>; <a name="l00096"></a><a class="code" href="classcontrol__osd.html#a97e6cd0c742309422092a0f0d423c924">00096</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a97e6cd0c742309422092a0f0d423c924">display_q</a>; <a name="l00097"></a>00097 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a9d424067b4ef414ecd8af6b01181d6de">slave_DAT_O</a> = ({<a class="code" href="classcontrol__osd.html#a56bc5b958a26c2c44973bd0ccaea78e6">ADR_I</a>, <span class="vhdllogic">2'b00</span>} >= <span class="vhdllogic">32'h10000000</span> && {<a class="code" href="classcontrol__osd.html#a56bc5b958a26c2c44973bd0ccaea78e6">ADR_I</a>, <span class="vhdllogic">2'b00</span>} <= <span class="vhdllogic">32'h10000FFF</span>)? <a class="code" href="classcontrol__osd.html#a97e6cd0c742309422092a0f0d423c924">display_q</a> : <span class="vhdllogic">32'd0</span>; <a name="l00098"></a>00098 <a name="l00099"></a><a class="code" href="classcontrol__osd.html#a78d1a7d8f835fc539c7891680342c962">00099</a> <a class="code" href="classcontrol__osd.html#a78d1a7d8f835fc539c7891680342c962">altsyncram</a> <span class="vhdlchar">display_ram_inst</span>( <a name="l00100"></a>00100 .<span class="vhdlchar">clock0</span>(<a class="code" href="classcontrol__osd.html#a6196377a3ab5559a513854cf1c3497b1">CLK_I</a>), <a name="l00101"></a>00101 .<span class="vhdlchar">clock1</span>(<a class="code" href="classcontrol__osd.html#a6196377a3ab5559a513854cf1c3497b1">CLK_I</a>), <a name="l00102"></a>00102 .<span class="vhdlchar">address_a</span>(<a class="code" href="classcontrol__osd.html#a56bc5b958a26c2c44973bd0ccaea78e6">ADR_I</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">2</span>]), <a name="l00103"></a>00103 .<span class="vhdlchar">wren_a</span>(<a class="code" href="classcontrol__osd.html#a0dfc269f92968a047cbffc059139de0a">CYC_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a13f03a265712c279b320063a9e70bf4c">STB_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#ac824a485e6b902923401ab73c7f03841">WE_I</a> == <span class="vhdllogic">1'b1</span> && {<a class="code" href="classcontrol__osd.html#a56bc5b958a26c2c44973bd0ccaea78e6">ADR_I</a>, <span class="vhdllogic">2'b00</span>} >= <span class="vhdllogic">32'h10000000</span> && {<a class="code" href="classcontrol__osd.html#a56bc5b958a26c2c44973bd0ccaea78e6">ADR_I</a>, <span class="vhdllogic">2'b00</span>} <= <span class="vhdllogic">32'h10000FFF</span>), <a name="l00104"></a>00104 .<span class="vhdlchar">data_a</span>(<a class="code" href="classcontrol__osd.html#a0f8f6133735ab74bebd3fa658840dd5b">slave_DAT_I</a>), <a name="l00105"></a>00105 .<span class="vhdlchar">byteena_a</span>(<a class="code" href="classcontrol__osd.html#a3f273553f9b5411f23b32b87bdf44e05">SEL_I</a>), <a name="l00106"></a>00106 .<span class="vhdlchar">q_a</span>(<a class="code" href="classcontrol__osd.html#a97e6cd0c742309422092a0f0d423c924">display_q</a>), <a name="l00107"></a>00107 .<span class="vhdlchar">address_b</span>(<a class="code" href="classcontrol__osd.html#ac03af5be4e21a2e147581ea0aaffa7ae">char_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">2</span>]), <a name="l00108"></a>00108 .<span class="vhdlchar">q_b</span>(<a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>) <a name="l00109"></a>00109 ); <a name="l00110"></a>00110 <span class="vhdlkeyword">defparam</span> <span class="vhdlchar">display_ram_inst</span>.<span class="vhdlchar">operation_mode</span> = <span class="keyword">"BIDIR_DUAL_PORT"</span>; <a name="l00111"></a>00111 <span class="vhdlkeyword">defparam</span> <span class="vhdlchar">display_ram_inst</span>.<span class="vhdlchar">width_a</span> = <span class="vhdllogic">32</span>; <a name="l00112"></a>00112 <span class="vhdlkeyword">defparam</span> <span class="vhdlchar">display_ram_inst</span>.<span class="vhdlchar">widthad_a</span> = <span class="vhdllogic">10</span>; <a name="l00113"></a>00113 <span class="vhdlkeyword">defparam</span> <span class="vhdlchar">display_ram_inst</span>.<span class="vhdlchar">width_byteena_a</span> = <span class="vhdllogic">4</span>; <a name="l00114"></a>00114 <span class="vhdlkeyword">defparam</span> <span class="vhdlchar">display_ram_inst</span>.<span class="vhdlchar">width_b</span> = <span class="vhdllogic">32</span>; <a name="l00115"></a>00115 <span class="vhdlkeyword">defparam</span> <span class="vhdlchar">display_ram_inst</span>.<span class="vhdlchar">widthad_b</span> = <span class="vhdllogic">10</span>; <a name="l00116"></a>00116 <span class="vhdlkeyword">defparam</span> <span class="vhdlchar">display_ram_inst</span>.<span class="vhdlchar">init_file</span> = <span class="keyword">"control_osd.mif"</span>; <a name="l00117"></a>00117 <a name="l00118"></a><a class="code" href="classcontrol__osd.html#a2cfa2074ced6af38b56ca2228b433a1a">00118</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a2cfa2074ced6af38b56ca2228b433a1a">final_char</a>; <a name="l00119"></a>00119 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a2cfa2074ced6af38b56ca2228b433a1a">final_char</a> = <a name="l00120"></a>00120 (<a class="code" href="classcontrol__osd.html#ac03af5be4e21a2e147581ea0aaffa7ae">char_addr</a>[<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">2'd0</span>)? <a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>[<span class="vhdllogic">31</span>:<span class="vhdllogic">24</span>] : <a name="l00121"></a>00121 (<a class="code" href="classcontrol__osd.html#ac03af5be4e21a2e147581ea0aaffa7ae">char_addr</a>[<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">2'd1</span>)? <a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>[<span class="vhdllogic">23</span>:<span class="vhdllogic">16</span>] : <a name="l00122"></a>00122 (<a class="code" href="classcontrol__osd.html#ac03af5be4e21a2e147581ea0aaffa7ae">char_addr</a>[<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">2'd2</span>)? <a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>[<span class="vhdllogic">15</span>:<span class="vhdllogic">8</span>] : <a name="l00123"></a>00123 <a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>[<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>]; <a name="l00124"></a>00124 <a name="l00125"></a>00125 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a47650aa230d01c3de6c7ff983c26f563">character</a> = (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd9</span> && <a class="code" href="classcontrol__osd.html#a2cfa2074ced6af38b56ca2228b433a1a">final_char</a> != <span class="vhdllogic">8'd0</span>)? {<span class="vhdllogic">1'b1</span>, <a class="code" href="classcontrol__osd.html#a2cfa2074ced6af38b56ca2228b433a1a">final_char</a>[<span class="vhdllogic">6</span>:<span class="vhdllogic">0</span>]} : <a class="code" href="classcontrol__osd.html#a2cfa2074ced6af38b56ca2228b433a1a">final_char</a>; <a name="l00126"></a>00126 <a name="l00127"></a>00127 <span class="keyword">//***************** Control</span> <a name="l00128"></a><a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">00128</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a>; <a name="l00129"></a><a class="code" href="classcontrol__osd.html#ae5f31d2e616c0e1c35a0658a7ab32529">00129</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">7</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#ae5f31d2e616c0e1c35a0658a7ab32529">selected_floppy_pointer</a>; <a name="l00130"></a>00130 <a name="l00131"></a><a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">00131</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>; <a name="l00132"></a><a class="code" href="classcontrol__osd.html#af65347dfddd6e44e81f3cf90ec9e8272">00132</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">31</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#af65347dfddd6e44e81f3cf90ec9e8272">value_b</a>; <a name="l00133"></a>00133 <a name="l00134"></a><a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">00134</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a>; <a name="l00135"></a><a class="code" href="classcontrol__osd.html#aa0a936aa1855900564c1b2ee7afc90ff">00135</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">4</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#aa0a936aa1855900564c1b2ee7afc90ff">last_osd_column</a>; <a name="l00136"></a>00136 <a name="l00137"></a><a class="code" href="classcontrol__osd.html#acf827f8c96b7f380c7e206e0acea7d90">00137</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#acf827f8c96b7f380c7e206e0acea7d90">last_keyboard_up</a>; <a name="l00138"></a><a class="code" href="classcontrol__osd.html#a5c8253fd8c2a8af87cf2f934901cfbcd">00138</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a5c8253fd8c2a8af87cf2f934901cfbcd">last_keyboard_down</a>; <a name="l00139"></a><a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">00139</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a>; <a name="l00140"></a><a class="code" href="classcontrol__osd.html#a89fd67f1b7e8dbdf703c0834a6478f6a">00140</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a89fd67f1b7e8dbdf703c0834a6478f6a">last_request_osd</a>; <a name="l00141"></a>00141 <a name="l00142"></a><a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">00142</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">22</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">keyboard_counter</a>; <a name="l00143"></a><a class="code" href="classcontrol__osd.html#a894a5810810119333b0eabcaa639edde">00143</a> <span class="vhdlkeyword">reg</span> <a class="code" href="classcontrol__osd.html#a894a5810810119333b0eabcaa639edde">keyboard_repeating</a>; <a name="l00144"></a><a class="code" href="classcontrol__osd.html#a5095fdef3b874b500ff5283c5b5affe8">00144</a> <span class="vhdlkeyword">wire</span> <a class="code" href="classcontrol__osd.html#a5095fdef3b874b500ff5283c5b5affe8">keyboard_repeat</a>; <a name="l00145"></a>00145 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a5095fdef3b874b500ff5283c5b5affe8">keyboard_repeat</a> = (<a class="code" href="classcontrol__osd.html#a894a5810810119333b0eabcaa639edde">keyboard_repeating</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">keyboard_counter</a> == <span class="vhdllogic">23'd6000000</span>) || (<a class="code" href="classcontrol__osd.html#a894a5810810119333b0eabcaa639edde">keyboard_repeating</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">keyboard_counter</a> == <span class="vhdllogic">23'd1000000</span>); <a name="l00146"></a>00146 <a name="l00147"></a><a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">00147</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">12</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>; <a name="l00148"></a>00148 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a> = {<span class="vhdllogic">3'b0</span>, <a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a>, <span class="vhdllogic">5'b0</span>} - <span class="vhdllogic">13'd64</span> + { <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a>, <span class="vhdllogic">5'b0</span> }; <a name="l00149"></a><a class="code" href="classcontrol__osd.html#aafca92500170023ab7131e886a5f726e">00149</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">12</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#aafca92500170023ab7131e886a5f726e">selected_floppy_addr</a>; <a name="l00150"></a>00150 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#aafca92500170023ab7131e886a5f726e">selected_floppy_addr</a> = { <span class="vhdllogic">3'b0</span>, <span class="vhdllogic">5'd9</span>, <span class="vhdllogic">5'b0</span> } - <span class="vhdllogic">13'd64</span> + { <a class="code" href="classcontrol__osd.html#ae5f31d2e616c0e1c35a0658a7ab32529">selected_floppy_pointer</a>, <span class="vhdllogic">5'b0</span> }; <a name="l00151"></a>00151 <a name="l00152"></a><a class="code" href="classcontrol__osd.html#ac03af5be4e21a2e147581ea0aaffa7ae">00152</a> <span class="vhdlkeyword">wire</span> [<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#ac03af5be4e21a2e147581ea0aaffa7ae">char_addr</a>; <a name="l00153"></a>00153 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#ac03af5be4e21a2e147581ea0aaffa7ae">char_addr</a> = <a name="l00154"></a>00154 ((<a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> == <span class="vhdllogic">2'd1</span>)? <span class="vhdllogic">5'd24</span> : <a name="l00155"></a>00155 (<a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> > <span class="vhdllogic">2'd1</span>)? <span class="vhdllogic">5'd28</span> : <a name="l00156"></a>00156 (<a class="code" href="classcontrol__osd.html#ae5ebacc470598b8ba116db8eda10fddd">osd_column</a> == <span class="vhdllogic">5'd31</span>)? <span class="vhdllogic">12'd0</span> : <a class="code" href="classcontrol__osd.html#ae5ebacc470598b8ba116db8eda10fddd">osd_column</a> + <span class="vhdllogic">5'd1</span> <a name="l00157"></a>00157 ) + <a name="l00158"></a>00158 ((<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd0</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> != <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a>)? <span class="vhdllogic">12'd0</span> : <a name="l00159"></a>00159 (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd0</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a>)? <span class="vhdllogic">12'd160</span> : <a name="l00160"></a>00160 <a name="l00161"></a>00161 (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd1</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a68452c642ded0928e1066ce36355cce6">S_SD_CHECK_INIT</a>)? <span class="vhdllogic">12'd32</span> : <a name="l00162"></a>00162 (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd1</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>)? <span class="vhdllogic">12'd64</span> : <a name="l00163"></a>00163 (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd1</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a0dff34146b98847c6f0e497e8a896d60">S_SELECT_ROM</a>)? <span class="vhdllogic">12'd96</span> : <a name="l00164"></a>00164 (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd1</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> && <a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a> == <span class="vhdllogic">1'd0</span>)? <a name="l00165"></a>00165 <span class="vhdllogic">12'd192</span> : <a name="l00166"></a>00166 (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd1</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a>)? <a class="code" href="classcontrol__osd.html#aafca92500170023ab7131e886a5f726e">selected_floppy_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] - <span class="vhdllogic">12'd96</span> + <span class="vhdllogic">12'd1024</span> : <a name="l00167"></a>00167 <a name="l00168"></a>00168 (<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd9</span> && <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>)? <span class="vhdllogic">12'd352</span> : <a name="l00169"></a>00169 (<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>)? <span class="vhdllogic">12'd128</span> : <a name="l00170"></a>00170 <a name="l00171"></a>00171 (<a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">12</span>] == <span class="vhdllogic">1'b1</span>)? <span class="vhdllogic">12'd128</span> : <a name="l00172"></a>00172 (<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a0dff34146b98847c6f0e497e8a896d60">S_SELECT_ROM</a>)? <a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] + <span class="vhdllogic">12'd512</span> : <a name="l00173"></a>00173 <a name="l00174"></a>00174 (<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> != <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a>)? <span class="vhdllogic">12'd128</span> : <a name="l00175"></a>00175 <a name="l00176"></a>00176 (<a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">12'd0</span> && <a class="code" href="classcontrol__osd.html#aedcadd537ead33021c07902d18675670">joystick_enable</a> == <span class="vhdllogic">1'b0</span>)? <a name="l00177"></a>00177 <span class="vhdllogic">12'd224</span> : <a name="l00178"></a>00178 (<a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">12'd0</span> && <a class="code" href="classcontrol__osd.html#aedcadd537ead33021c07902d18675670">joystick_enable</a> == <span class="vhdllogic">1'b1</span>)? <a name="l00179"></a>00179 <span class="vhdllogic">12'd256</span> : <a name="l00180"></a>00180 <a name="l00181"></a>00181 (<a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">12'd32</span> && <a class="code" href="classcontrol__osd.html#a1599e7ad96018cb8119f148f15f41e33">floppy_write_enabled</a> == <span class="vhdllogic">1'b0</span>)? <a name="l00182"></a>00182 <span class="vhdllogic">12'd288</span> : <a name="l00183"></a>00183 (<a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">12'd32</span> && <a class="code" href="classcontrol__osd.html#a1599e7ad96018cb8119f148f15f41e33">floppy_write_enabled</a> == <span class="vhdllogic">1'b1</span>)? <a name="l00184"></a>00184 <span class="vhdllogic">12'd320</span> : <a name="l00185"></a>00185 <a name="l00186"></a>00186 (<a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">12'd64</span>)? <span class="vhdllogic">12'd352</span> : <a name="l00187"></a>00187 <a name="l00188"></a>00188 (<a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] == <span class="vhdllogic">12'd96</span> && <a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a> == <span class="vhdllogic">1'd1</span>)? <a name="l00189"></a>00189 <span class="vhdllogic">12'd384</span> : <a name="l00190"></a>00190 <a name="l00191"></a>00191 (<a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a> == <span class="vhdllogic">13'd0</span>)? <a class="code" href="classcontrol__osd.html#a38a43a0a1f75c353e09c64016295c584">current_addr</a>[<span class="vhdllogic">11</span>:<span class="vhdllogic">0</span>] - <span class="vhdllogic">12'd96</span> + <span class="vhdllogic">12'd1024</span> : <a name="l00192"></a>00192 <a name="l00193"></a>00193 <span class="vhdllogic">12'd128</span> <a name="l00194"></a>00194 <a name="l00195"></a>00195 ); <a name="l00196"></a>00196 <a name="l00197"></a>00197 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a> = (<a class="code" href="classcontrol__osd.html#a184b1277f2f2aaa469a1e45f183bf0b5">floppy_sector</a> != <span class="vhdllogic">32'd0</span>); <a name="l00198"></a>00198 <span class="vhdlkeyword">assign</span> <a class="code" href="classcontrol__osd.html#a8223f70b4b426d3e77f515261e41ab8a">reset_request</a> = {<a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">3</span>] == <span class="vhdllogic">1'b1</span>}; <a name="l00199"></a>00199 <a name="l00200"></a><a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">00200</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a>; <a name="l00201"></a><a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">00201</a> <span class="vhdlkeyword">parameter</span> [<span class="vhdllogic">3</span>:<span class="vhdllogic">0</span>] <a name="l00202"></a>00202 <a class="code" href="classcontrol__osd.html#a68452c642ded0928e1066ce36355cce6">S_SD_CHECK_INIT</a> = <span class="vhdllogic">4'd0</span>, <a name="l00203"></a>00203 <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a> = <span class="vhdllogic">4'd1</span>, <a name="l00204"></a>00204 <a class="code" href="classcontrol__osd.html#a9703e01c4d6ed52e7ade167591a8e0aa">S_READ_INTRO</a> = <span class="vhdllogic">4'd2</span>, <a name="l00205"></a>00205 <a class="code" href="classcontrol__osd.html#ab970a1e9b2c49dc913acce5c19eaf35b">S_READ_INTRO_WAIT</a> = <span class="vhdllogic">4'd3</span>, <a name="l00206"></a>00206 <a class="code" href="classcontrol__osd.html#a16c08146ee965b70f1bed7159d3ea03b">S_READ_HEADER</a> = <span class="vhdllogic">4'd4</span>, <a name="l00207"></a>00207 <a class="code" href="classcontrol__osd.html#ac9549cc9fb4eece3f79c77944c37e938">S_READ_HEADER_WAIT</a> = <span class="vhdllogic">4'd5</span>, <a name="l00208"></a>00208 <a class="code" href="classcontrol__osd.html#a0dff34146b98847c6f0e497e8a896d60">S_SELECT_ROM</a> = <span class="vhdllogic">4'd6</span>, <a name="l00209"></a>00209 <a class="code" href="classcontrol__osd.html#a1bd013f7937fd22f51d13505d6973260">S_COPY_ROM</a> = <span class="vhdllogic">4'd7</span>, <a name="l00210"></a>00210 <a class="code" href="classcontrol__osd.html#a4f25c53f35d7e5deef6a1895ee61fc01">S_RUNNING</a> = <span class="vhdllogic">4'd8</span>, <a name="l00211"></a>00211 <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> = <span class="vhdllogic">4'd9</span>; <a name="l00212"></a>00212 <a name="l00213"></a><a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">00213</a> <span class="vhdlkeyword">reg</span> [<span class="vhdllogic">1</span>:<span class="vhdllogic">0</span>] <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a>; <a name="l00214"></a>00214 <a name="l00215"></a><a class="code" href="classcontrol__osd.html#a51312022ad3e3d47d4febf6c4d57397f">00215</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classcontrol__osd.html#a6196377a3ab5559a513854cf1c3497b1">CLK_I</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classcontrol__osd.html#ae2085dff5bb31a3a9900c6835b2910b6">reset_n</a>) <span class="vhdlkeyword">begin</span> <a name="l00216"></a>00216 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ae2085dff5bb31a3a9900c6835b2910b6">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00217"></a>00217 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00218"></a>00218 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00219"></a>00219 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'd0</span>; <a name="l00220"></a>00220 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00221"></a>00221 <a class="code" href="classcontrol__osd.html#ad3aa3632307fea5a411e849d00b16b6c">master_DAT_O</a> <= <span class="vhdllogic">32'd0</span>; <a name="l00222"></a>00222 <a name="l00223"></a>00223 <a class="code" href="classcontrol__osd.html#af54eb8eee839999c0d1ec81f4ee83f05">ACK_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00224"></a>00224 <a name="l00225"></a>00225 <a class="code" href="classcontrol__osd.html#a6ce16bde3a7e3ca98e9f6f52f1d54b01">management_mode</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00226"></a>00226 <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a> <= -<span class="vhdllogic">8'd7</span><span class="vhdllogic"></span>; <a name="l00227"></a>00227 <a class="code" href="classcontrol__osd.html#ae5f31d2e616c0e1c35a0658a7ab32529">selected_floppy_pointer</a> <= -<span class="vhdllogic">8'd5</span><span class="vhdllogic"></span>; <a name="l00228"></a>00228 <a name="l00229"></a>00229 <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a> <= <span class="vhdllogic">32'd0</span>; <a name="l00230"></a>00230 <a class="code" href="classcontrol__osd.html#af65347dfddd6e44e81f3cf90ec9e8272">value_b</a> <= <span class="vhdllogic">32'd0</span>; <a name="l00231"></a>00231 <a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00232"></a>00232 <a class="code" href="classcontrol__osd.html#aa0a936aa1855900564c1b2ee7afc90ff">last_osd_column</a> <= <span class="vhdllogic">5'd0</span>; <a name="l00233"></a>00233 <a name="l00234"></a>00234 <a class="code" href="classcontrol__osd.html#acf827f8c96b7f380c7e206e0acea7d90">last_keyboard_up</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00235"></a>00235 <a class="code" href="classcontrol__osd.html#a5c8253fd8c2a8af87cf2f934901cfbcd">last_keyboard_down</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00236"></a>00236 <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00237"></a>00237 <a class="code" href="classcontrol__osd.html#a89fd67f1b7e8dbdf703c0834a6478f6a">last_request_osd</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00238"></a>00238 <a name="l00239"></a>00239 <a class="code" href="classcontrol__osd.html#a118dcc09c5966614c035a6fb16e232d8">on_screen_display</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00240"></a>00240 <a class="code" href="classcontrol__osd.html#aedcadd537ead33021c07902d18675670">joystick_enable</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00241"></a>00241 <a class="code" href="classcontrol__osd.html#a184b1277f2f2aaa469a1e45f183bf0b5">floppy_sector</a> <= <span class="vhdllogic">32'd0</span>; <a name="l00242"></a>00242 <a class="code" href="classcontrol__osd.html#a1599e7ad96018cb8119f148f15f41e33">floppy_write_enabled</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00243"></a>00243 <a name="l00244"></a>00244 <a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">keyboard_counter</a> <= <span class="vhdllogic">23'd0</span>; <a name="l00245"></a>00245 <a class="code" href="classcontrol__osd.html#a894a5810810119333b0eabcaa639edde">keyboard_repeating</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00246"></a>00246 <a name="l00247"></a>00247 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00248"></a>00248 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a68452c642ded0928e1066ce36355cce6">S_SD_CHECK_INIT</a>; <a name="l00249"></a>00249 <span class="vhdlkeyword">end</span> <a name="l00250"></a>00250 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span> <a name="l00251"></a>00251 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a0dfc269f92968a047cbffc059139de0a">CYC_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a13f03a265712c279b320063a9e70bf4c">STB_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#af54eb8eee839999c0d1ec81f4ee83f05">ACK_O</a> == <span class="vhdllogic">1'b0</span>) <a class="code" href="classcontrol__osd.html#af54eb8eee839999c0d1ec81f4ee83f05">ACK_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00252"></a>00252 <span class="vhdlkeyword">else</span> <a class="code" href="classcontrol__osd.html#af54eb8eee839999c0d1ec81f4ee83f05">ACK_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00253"></a>00253 <a name="l00254"></a>00254 <a name="l00255"></a>00255 <a class="code" href="classcontrol__osd.html#aa0a936aa1855900564c1b2ee7afc90ff">last_osd_column</a> <= <a class="code" href="classcontrol__osd.html#ae5ebacc470598b8ba116db8eda10fddd">osd_column</a>; <a name="l00256"></a>00256 <a class="code" href="classcontrol__osd.html#acf827f8c96b7f380c7e206e0acea7d90">last_keyboard_up</a> <= <a class="code" href="classcontrol__osd.html#a30d42e8e9807db20a9955dcc733278e6">keyboard_up</a>; <a name="l00257"></a>00257 <a class="code" href="classcontrol__osd.html#a5c8253fd8c2a8af87cf2f934901cfbcd">last_keyboard_down</a> <= <a class="code" href="classcontrol__osd.html#a4cc4f2acf479b53f39e86fd22e1e0fbd">keyboard_down</a>; <a name="l00258"></a>00258 <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> <= <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a>; <a name="l00259"></a>00259 <a class="code" href="classcontrol__osd.html#a89fd67f1b7e8dbdf703c0834a6478f6a">last_request_osd</a> <= <a class="code" href="classcontrol__osd.html#a630825280ca4da6c00f576507ad14bee">request_osd</a>; <a name="l00260"></a>00260 <a name="l00261"></a>00261 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ae5ebacc470598b8ba116db8eda10fddd">osd_column</a> == <span class="vhdllogic">5'd31</span> && <a class="code" href="classcontrol__osd.html#aa0a936aa1855900564c1b2ee7afc90ff">last_osd_column</a> != <span class="vhdllogic">5'd31</span>) <a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> <= <span class="vhdllogic">2'd1</span>; <a name="l00262"></a>00262 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> != <span class="vhdllogic">2'd0</span>) <a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> <= <a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> + <span class="vhdllogic">2'd1</span>; <a name="l00263"></a>00263 <a name="l00264"></a>00264 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd9</span> && <a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> == <span class="vhdllogic">2'd2</span>) <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a> <= <a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>; <a name="l00265"></a>00265 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ae8b5fe5aa092efbbfac575c43d80c928">osd_line</a> == <span class="vhdllogic">5'd9</span> && <a class="code" href="classcontrol__osd.html#aeda541622c7c8f2260aa315647b95a5a">value_counter</a> == <span class="vhdllogic">2'd3</span>) <a class="code" href="classcontrol__osd.html#af65347dfddd6e44e81f3cf90ec9e8272">value_b</a> <= <a class="code" href="classcontrol__osd.html#ac91d851e4665fdea7402fb9d4f5eab33">char</a>; <a name="l00266"></a>00266 <a name="l00267"></a>00267 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a30d42e8e9807db20a9955dcc733278e6">keyboard_up</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a4cc4f2acf479b53f39e86fd22e1e0fbd">keyboard_down</a> == <span class="vhdllogic">1'b0</span>) <a class="code" href="classcontrol__osd.html#a894a5810810119333b0eabcaa639edde">keyboard_repeating</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00268"></a>00268 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a5095fdef3b874b500ff5283c5b5affe8">keyboard_repeat</a> == <span class="vhdllogic">1'b1</span>) <a class="code" href="classcontrol__osd.html#a894a5810810119333b0eabcaa639edde">keyboard_repeating</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00269"></a>00269 <a name="l00270"></a>00270 <span class="vhdlkeyword">if</span>((<a class="code" href="classcontrol__osd.html#a30d42e8e9807db20a9955dcc733278e6">keyboard_up</a> == <span class="vhdllogic">1'b1</span> || <a class="code" href="classcontrol__osd.html#a4cc4f2acf479b53f39e86fd22e1e0fbd">keyboard_down</a> == <span class="vhdllogic">1'b1</span>) && <a class="code" href="classcontrol__osd.html#a5095fdef3b874b500ff5283c5b5affe8">keyboard_repeat</a> == <span class="vhdllogic">1'b0</span>) <a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">keyboard_counter</a> <= <a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">keyboard_counter</a> + <span class="vhdllogic">21'd1</span>; <a name="l00271"></a>00271 <span class="vhdlkeyword">else</span> <a class="code" href="classcontrol__osd.html#ae06410c715ba2a8e8f68f72dc7ab7ac5">keyboard_counter</a> <= <span class="vhdllogic">21'd0</span>; <a name="l00272"></a>00272 <a name="l00273"></a>00273 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a30d42e8e9807db20a9955dcc733278e6">keyboard_up</a> == <span class="vhdllogic">1'b1</span> && (<a class="code" href="classcontrol__osd.html#acf827f8c96b7f380c7e206e0acea7d90">last_keyboard_up</a> == <span class="vhdllogic">1'b0</span> || <a class="code" href="classcontrol__osd.html#a5095fdef3b874b500ff5283c5b5affe8">keyboard_repeat</a> == <span class="vhdllogic">1'b1</span>) && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">1</span>] == <span class="vhdllogic">1'b0</span>) <a name="l00274"></a>00274 <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a> <= <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a> - <span class="vhdllogic">8'd1</span>; <a name="l00275"></a>00275 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a4cc4f2acf479b53f39e86fd22e1e0fbd">keyboard_down</a> == <span class="vhdllogic">1'b1</span> && (<a class="code" href="classcontrol__osd.html#a5c8253fd8c2a8af87cf2f934901cfbcd">last_keyboard_down</a> == <span class="vhdllogic">1'b0</span> || <a class="code" href="classcontrol__osd.html#a5095fdef3b874b500ff5283c5b5affe8">keyboard_repeat</a> == <span class="vhdllogic">1'b1</span>) && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">0</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">2</span>] == <span class="vhdllogic">1'b0</span>) <a name="l00276"></a>00276 <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a> <= <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a> + <span class="vhdllogic">8'd1</span>; <a name="l00277"></a>00277 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> && <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a> == <span class="vhdllogic">13'd1</span>) <a name="l00278"></a>00278 <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a> <= <a class="code" href="classcontrol__osd.html#ae5f31d2e616c0e1c35a0658a7ab32529">selected_floppy_pointer</a>; <a name="l00279"></a>00279 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> && <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a> == <span class="vhdllogic">13'd0</span>) <a name="l00280"></a>00280 <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a> <= -<span class="vhdllogic">8'd4</span><span class="vhdllogic"></span>; <a name="l00281"></a>00281 <a name="l00282"></a>00282 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a8d108655097a93e09690cd77d840fca4">floppy_error</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00283"></a>00283 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00284"></a>00284 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00285"></a>00285 <a name="l00286"></a>00286 <a class="code" href="classcontrol__osd.html#a118dcc09c5966614c035a6fb16e232d8">on_screen_display</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00287"></a>00287 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>; <a name="l00288"></a>00288 <span class="vhdlkeyword">end</span> <a name="l00289"></a>00289 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a68452c642ded0928e1066ce36355cce6">S_SD_CHECK_INIT</a>) <span class="vhdlkeyword">begin</span> <a name="l00290"></a>00290 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00291"></a>00291 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00292"></a>00292 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00293"></a>00293 <a name="l00294"></a>00294 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd2</span>) <span class="vhdlkeyword">begin</span> <a name="l00295"></a>00295 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'h4000400</span>; <span class="keyword">// 0x10001000, base write address</span> <a name="l00296"></a>00296 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00297"></a>00297 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a9703e01c4d6ed52e7ade167591a8e0aa">S_READ_INTRO</a>; <a name="l00298"></a>00298 <span class="vhdlkeyword">end</span> <a name="l00299"></a>00299 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd1</span>) <span class="vhdlkeyword">begin</span> <a name="l00300"></a>00300 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>; <a name="l00301"></a>00301 <span class="vhdlkeyword">end</span> <a name="l00302"></a>00302 <span class="vhdlkeyword">end</span> <a name="l00303"></a>00303 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00304"></a>00304 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00305"></a>00305 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00306"></a>00306 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00307"></a>00307 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'h4000400</span>; <span class="keyword">// 0x10001000, read state</span> <a name="l00308"></a>00308 <span class="vhdlkeyword">end</span> <a name="l00309"></a>00309 <span class="vhdlkeyword">end</span> <a name="l00310"></a>00310 <a name="l00311"></a>00311 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a9703e01c4d6ed52e7ade167591a8e0aa">S_READ_INTRO</a>) <span class="vhdlkeyword">begin</span> <a name="l00312"></a>00312 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00313"></a>00313 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00314"></a>00314 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00315"></a>00315 <a name="l00316"></a>00316 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> < <span class="vhdllogic">2'd3</span>) <span class="vhdlkeyword">begin</span> <a name="l00317"></a>00317 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> + <span class="vhdllogic">2'd1</span>; <a name="l00318"></a>00318 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> + <span class="vhdllogic">30'd1</span>; <a name="l00319"></a>00319 <span class="vhdlkeyword">end</span> <a name="l00320"></a>00320 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span> <a name="l00321"></a>00321 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00322"></a>00322 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#ab970a1e9b2c49dc913acce5c19eaf35b">S_READ_INTRO_WAIT</a>; <a name="l00323"></a>00323 <span class="vhdlkeyword">end</span> <a name="l00324"></a>00324 <span class="vhdlkeyword">end</span> <a name="l00325"></a>00325 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00326"></a>00326 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00327"></a>00327 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00328"></a>00328 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00329"></a>00329 <span class="keyword">//ADR_O <= ADR_O;</span> <a name="l00330"></a>00330 <a name="l00331"></a>00331 <a class="code" href="classcontrol__osd.html#ad3aa3632307fea5a411e849d00b16b6c">master_DAT_O</a> <= <a name="l00332"></a>00332 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd0</span>)? <span class="vhdllogic">32'h10180000</span> : <span class="keyword">// base address, 0x10000000</span> <a name="l00333"></a>00333 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd1</span>)? <span class="vhdllogic">32'd0</span> : <span class="keyword">// sd sector number</span> <a name="l00334"></a>00334 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd2</span>)? <span class="vhdllogic">32'd432</span> : <span class="keyword">// read sector size</span> <a name="l00335"></a>00335 <span class="vhdllogic">32'd2</span>; <span class="keyword">// start sd read</span> <a name="l00336"></a>00336 <span class="vhdlkeyword">end</span> <a name="l00337"></a>00337 <span class="vhdlkeyword">end</span> <a name="l00338"></a>00338 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#ab970a1e9b2c49dc913acce5c19eaf35b">S_READ_INTRO_WAIT</a>) <span class="vhdlkeyword">begin</span> <a name="l00339"></a>00339 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00340"></a>00340 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00341"></a>00341 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00342"></a>00342 <a name="l00343"></a>00343 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd2</span>) <span class="vhdlkeyword">begin</span> <a name="l00344"></a>00344 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'h4000400</span>; <span class="keyword">// 0x10001000, base write address</span> <a name="l00345"></a>00345 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00346"></a>00346 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a16c08146ee965b70f1bed7159d3ea03b">S_READ_HEADER</a>; <a name="l00347"></a>00347 <span class="vhdlkeyword">end</span> <a name="l00348"></a>00348 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd5</span>) <span class="vhdlkeyword">begin</span> <a name="l00349"></a>00349 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>; <a name="l00350"></a>00350 <span class="vhdlkeyword">end</span> <a name="l00351"></a>00351 <span class="vhdlkeyword">end</span> <a name="l00352"></a>00352 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00353"></a>00353 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00354"></a>00354 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00355"></a>00355 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00356"></a>00356 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'h4000400</span>; <span class="keyword">// 0x10001000, read state</span> <a name="l00357"></a>00357 <span class="vhdlkeyword">end</span> <a name="l00358"></a>00358 <span class="vhdlkeyword">end</span> <a name="l00359"></a>00359 <a name="l00360"></a>00360 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a16c08146ee965b70f1bed7159d3ea03b">S_READ_HEADER</a>) <span class="vhdlkeyword">begin</span> <a name="l00361"></a>00361 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00362"></a>00362 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00363"></a>00363 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00364"></a>00364 <a name="l00365"></a>00365 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> < <span class="vhdllogic">2'd3</span>) <span class="vhdlkeyword">begin</span> <a name="l00366"></a>00366 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> + <span class="vhdllogic">2'd1</span>; <a name="l00367"></a>00367 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> + <span class="vhdllogic">30'd1</span>; <a name="l00368"></a>00368 <span class="vhdlkeyword">end</span> <a name="l00369"></a>00369 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span> <a name="l00370"></a>00370 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00371"></a>00371 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#ac9549cc9fb4eece3f79c77944c37e938">S_READ_HEADER_WAIT</a>; <a name="l00372"></a>00372 <span class="vhdlkeyword">end</span> <a name="l00373"></a>00373 <span class="vhdlkeyword">end</span> <a name="l00374"></a>00374 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00375"></a>00375 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00376"></a>00376 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00377"></a>00377 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00378"></a>00378 <span class="keyword">//ADR_O <= ADR_O;</span> <a name="l00379"></a>00379 <a name="l00380"></a>00380 <a class="code" href="classcontrol__osd.html#ad3aa3632307fea5a411e849d00b16b6c">master_DAT_O</a> <= <a name="l00381"></a>00381 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd0</span>)? <span class="vhdllogic">32'h10000200</span> : <span class="keyword">// base address, 0x10000000</span> <a name="l00382"></a>00382 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd1</span>)? <span class="vhdllogic">32'd432</span> : <span class="keyword">// sd sector number</span> <a name="l00383"></a>00383 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd2</span>)? <span class="vhdllogic">32'd8</span> : <span class="keyword">// read sector size</span> <a name="l00384"></a>00384 <span class="vhdllogic">32'd2</span>; <span class="keyword">// start sd read</span> <a name="l00385"></a>00385 <span class="vhdlkeyword">end</span> <a name="l00386"></a>00386 <span class="vhdlkeyword">end</span> <a name="l00387"></a>00387 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#ac9549cc9fb4eece3f79c77944c37e938">S_READ_HEADER_WAIT</a>) <span class="vhdlkeyword">begin</span> <a name="l00388"></a>00388 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00389"></a>00389 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00390"></a>00390 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00391"></a>00391 <a name="l00392"></a>00392 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd2</span>) <span class="vhdlkeyword">begin</span> <a name="l00393"></a>00393 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'h4000400</span>; <span class="keyword">// 0x10001000, base write address</span> <a name="l00394"></a>00394 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00395"></a>00395 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a0dff34146b98847c6f0e497e8a896d60">S_SELECT_ROM</a>; <a name="l00396"></a>00396 <span class="vhdlkeyword">end</span> <a name="l00397"></a>00397 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd5</span>) <span class="vhdlkeyword">begin</span> <a name="l00398"></a>00398 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>; <a name="l00399"></a>00399 <span class="vhdlkeyword">end</span> <a name="l00400"></a>00400 <span class="vhdlkeyword">end</span> <a name="l00401"></a>00401 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00402"></a>00402 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00403"></a>00403 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00404"></a>00404 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00405"></a>00405 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'h4000400</span>; <span class="keyword">// 0x10001000, read state</span> <a name="l00406"></a>00406 <span class="vhdlkeyword">end</span> <a name="l00407"></a>00407 <span class="vhdlkeyword">end</span> <a name="l00408"></a>00408 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a0dff34146b98847c6f0e497e8a896d60">S_SELECT_ROM</a> && <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a> != <span class="vhdllogic">32'd0</span>) <span class="vhdlkeyword">begin</span> <a name="l00409"></a>00409 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00410"></a>00410 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00411"></a>00411 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00412"></a>00412 <a name="l00413"></a>00413 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> < <span class="vhdllogic">2'd3</span>) <span class="vhdlkeyword">begin</span> <a name="l00414"></a>00414 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> + <span class="vhdllogic">2'd1</span>; <a name="l00415"></a>00415 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> + <span class="vhdllogic">30'd1</span>; <a name="l00416"></a>00416 <span class="vhdlkeyword">end</span> <a name="l00417"></a>00417 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span> <a name="l00418"></a>00418 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00419"></a>00419 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a1bd013f7937fd22f51d13505d6973260">S_COPY_ROM</a>; <a name="l00420"></a>00420 <span class="vhdlkeyword">end</span> <a name="l00421"></a>00421 <span class="vhdlkeyword">end</span> <a name="l00422"></a>00422 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00423"></a>00423 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00424"></a>00424 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00425"></a>00425 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00426"></a>00426 <span class="keyword">//ADR_O <= ADR_O;</span> <a name="l00427"></a>00427 <a name="l00428"></a>00428 <a class="code" href="classcontrol__osd.html#ad3aa3632307fea5a411e849d00b16b6c">master_DAT_O</a> <= <a name="l00429"></a>00429 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd0</span>)? <span class="vhdllogic">32'h001C0000</span> : <span class="keyword">// base address, 0x00FC0000</span> <a name="l00430"></a>00430 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd1</span>)? <a class="code" href="classcontrol__osd.html#af65347dfddd6e44e81f3cf90ec9e8272">value_b</a> : <span class="keyword">// sd sector number</span> <a name="l00431"></a>00431 (<a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> == <span class="vhdllogic">2'd2</span>)? <span class="vhdllogic">32'd512</span> : <span class="keyword">// read sector size</span> <a name="l00432"></a>00432 <span class="vhdllogic">32'd2</span>; <span class="keyword">// start sd read</span> <a name="l00433"></a>00433 <span class="vhdlkeyword">end</span> <a name="l00434"></a>00434 <span class="vhdlkeyword">end</span> <a name="l00435"></a>00435 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a1bd013f7937fd22f51d13505d6973260">S_COPY_ROM</a>) <span class="vhdlkeyword">begin</span> <a name="l00436"></a>00436 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00437"></a>00437 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00438"></a>00438 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00439"></a>00439 <a name="l00440"></a>00440 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd2</span>) <span class="vhdlkeyword">begin</span> <a name="l00441"></a>00441 <a class="code" href="classcontrol__osd.html#aab6f880274ec3ca14f88705143726620">substate</a> <= <span class="vhdllogic">2'd0</span>; <a name="l00442"></a>00442 <a class="code" href="classcontrol__osd.html#a6ce16bde3a7e3ca98e9f6f52f1d54b01">management_mode</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00443"></a>00443 <a class="code" href="classcontrol__osd.html#a118dcc09c5966614c035a6fb16e232d8">on_screen_display</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00444"></a>00444 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a4f25c53f35d7e5deef6a1895ee61fc01">S_RUNNING</a>; <a name="l00445"></a>00445 <span class="vhdlkeyword">end</span> <a name="l00446"></a>00446 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a707c517dd2008bcd9a9b9be97c940a9d">master_DAT_I</a> == <span class="vhdllogic">32'd5</span>) <span class="vhdlkeyword">begin</span> <a name="l00447"></a>00447 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#ac89da3651617178f73dc266c04cfe961">S_SD_ERROR</a>; <a name="l00448"></a>00448 <span class="vhdlkeyword">end</span> <a name="l00449"></a>00449 <span class="vhdlkeyword">end</span> <a name="l00450"></a>00450 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#ad11d60e20f113040178c94dcea38789c">ACK_I</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span> <a name="l00451"></a>00451 <a class="code" href="classcontrol__osd.html#a4217691e3bbe7442766824a66c9c6061">CYC_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00452"></a>00452 <a class="code" href="classcontrol__osd.html#a9729f8e99e6215f16d487c9edc3bf8b5">STB_O</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00453"></a>00453 <a class="code" href="classcontrol__osd.html#ac02fbf6de142f70d423487e5eebbf41e">WE_O</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00454"></a>00454 <a class="code" href="classcontrol__osd.html#a4f40e02634efce8e877f05af30970b5a">ADR_O</a> <= <span class="vhdllogic">30'h4000400</span>; <span class="keyword">// 0x10001000, read state</span> <a name="l00455"></a>00455 <span class="vhdlkeyword">end</span> <a name="l00456"></a>00456 <span class="vhdlkeyword">end</span> <a name="l00457"></a>00457 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a4f25c53f35d7e5deef6a1895ee61fc01">S_RUNNING</a> && <a class="code" href="classcontrol__osd.html#a89fd67f1b7e8dbdf703c0834a6478f6a">last_request_osd</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a630825280ca4da6c00f576507ad14bee">request_osd</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00458"></a>00458 <a class="code" href="classcontrol__osd.html#a118dcc09c5966614c035a6fb16e232d8">on_screen_display</a> <= <span class="vhdllogic">1'b1</span>; <a name="l00459"></a>00459 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a>; <a name="l00460"></a>00460 <span class="vhdlkeyword">end</span> <a name="l00461"></a>00461 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> && <a class="code" href="classcontrol__osd.html#a89fd67f1b7e8dbdf703c0834a6478f6a">last_request_osd</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a630825280ca4da6c00f576507ad14bee">request_osd</a> == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00462"></a>00462 <a class="code" href="classcontrol__osd.html#a118dcc09c5966614c035a6fb16e232d8">on_screen_display</a> <= <span class="vhdllogic">1'b0</span>; <a name="l00463"></a>00463 <a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> <= <a class="code" href="classcontrol__osd.html#a4f25c53f35d7e5deef6a1895ee61fc01">S_RUNNING</a>; <a name="l00464"></a>00464 <span class="vhdlkeyword">end</span> <a name="l00465"></a>00465 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> && <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">4</span>] == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00466"></a>00466 <a class="code" href="classcontrol__osd.html#aedcadd537ead33021c07902d18675670">joystick_enable</a> <= ~<a class="code" href="classcontrol__osd.html#aedcadd537ead33021c07902d18675670">joystick_enable</a>; <a name="l00467"></a>00467 <span class="vhdlkeyword">end</span> <a name="l00468"></a>00468 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> && <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">6</span>] == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00469"></a>00469 <a class="code" href="classcontrol__osd.html#a1599e7ad96018cb8119f148f15f41e33">floppy_write_enabled</a> <= ~<a class="code" href="classcontrol__osd.html#a1599e7ad96018cb8119f148f15f41e33">floppy_write_enabled</a>; <a name="l00470"></a>00470 <span class="vhdlkeyword">end</span> <a name="l00471"></a>00471 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#a501cecb223ff8ac6940e3885dc86bd9f">state</a> == <a class="code" href="classcontrol__osd.html#a95fed56ef6e96e6f9f32ddc7d5c536bb">S_ON_SCREEN_DISPLAY</a> && <a class="code" href="classcontrol__osd.html#a575867013a3e21f25b0474e77038da8a">last_keyboard_select</a> == <span class="vhdllogic">1'b0</span> && <a class="code" href="classcontrol__osd.html#a3f1812f10b7c24cabb4180272ae408ab">keyboard_select</a> == <span class="vhdllogic">1'b1</span> && <a class="code" href="classcontrol__osd.html#a5f8c80324e4819532079fe69ba4ec7b7">value_a</a>[<span class="vhdllogic">5</span>] == <span class="vhdllogic">1'b1</span>) <span class="vhdlkeyword">begin</span> <a name="l00472"></a>00472 <span class="vhdlkeyword">if</span>(<a class="code" href="classcontrol__osd.html#adf38e4a4a873d67cdd788060a408493f">floppy_inserted</a> == <span class="vhdllogic">13'd1</span>) <span class="vhdlkeyword">begin</span> <a name="l00473"></a>00473 <a class="code" href="classcontrol__osd.html#a184b1277f2f2aaa469a1e45f183bf0b5">floppy_sector</a> <= <span class="vhdllogic">32'd0</span>; <a name="l00474"></a>00474 <span class="vhdlkeyword">end</span> <a name="l00475"></a>00475 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span> <a name="l00476"></a>00476 <a class="code" href="classcontrol__osd.html#a184b1277f2f2aaa469a1e45f183bf0b5">floppy_sector</a> <= <a class="code" href="classcontrol__osd.html#af65347dfddd6e44e81f3cf90ec9e8272">value_b</a>; <a name="l00477"></a>00477 <a class="code" href="classcontrol__osd.html#ae5f31d2e616c0e1c35a0658a7ab32529">selected_floppy_pointer</a> <= <a class="code" href="classcontrol__osd.html#a11dbc96f56067e875dcb44927dfcc10f">pointer</a>; <a name="l00478"></a>00478 <span class="vhdlkeyword">end</span> <a name="l00479"></a>00479 <span class="vhdlkeyword">end</span> <a name="l00480"></a>00480 <span class="vhdlkeyword">end</span> <a name="l00481"></a>00481 <span class="vhdlkeyword">end</span> <a name="l00482"></a>00482 <a name="l00483"></a>00483 <span class="vhdlkeyword">endmodule</span> <a name="l00484"></a>00484 </pre></div></div> </div> <hr class="footer"/><address class="footer"><small>Generated on Mon Dec 20 2010 21:20:18 for aoOCS by  <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.2 </small></address> </body> </html>