| Line 124... |
Line 124... |
<a name="l00096"></a><a class="code" href="ao68000_8v.html#ab55c9e9c151605863a8563e8e9a438e6">00096</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#aa688332c940cad3a10561a5c9f74698a">ADDRESS_FROM_IMM_32</a> <span class="vhdllogic">4'd7</span> <span class="keyword">// move from {ir1[15:0], ir2[15:0]}</span>
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<a name="l00096"></a><a class="code" href="ao68000_8v.html#ab55c9e9c151605863a8563e8e9a438e6">00096</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#aa688332c940cad3a10561a5c9f74698a">ADDRESS_FROM_IMM_32</a> <span class="vhdllogic">4'd7</span> <span class="keyword">// move from {ir1[15:0], ir2[15:0]}</span>
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<a name="l00097"></a><a class="code" href="ao68000_8v.html#a170ee7ff137ea34a1d1885ba86e332ba">00097</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#aa7a6ef5c21bbbf8a3c5a0437bdda3c85">ADDRESS_FROM_PC_INDEX_OFFSET</a> <span class="vhdllogic">4'd8</span> <span class="keyword">// move from pc+index+offset</span>
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<a name="l00097"></a><a class="code" href="ao68000_8v.html#a170ee7ff137ea34a1d1885ba86e332ba">00097</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#aa7a6ef5c21bbbf8a3c5a0437bdda3c85">ADDRESS_FROM_PC_INDEX_OFFSET</a> <span class="vhdllogic">4'd8</span> <span class="keyword">// move from pc+index+offset</span>
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<a name="l00098"></a><a class="code" href="ao68000_8v.html#a976e0837935917b54a3f575786283804">00098</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a2a30a0ecfa48e96cc5be837e7db71cab">ADDRESS_FROM_TRAP</a> <span class="vhdllogic">4'd9</span> <span class="keyword">// move trap {22'b0, trap[7:0], 2'b0}</span>
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<a name="l00098"></a><a class="code" href="ao68000_8v.html#a976e0837935917b54a3f575786283804">00098</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a2a30a0ecfa48e96cc5be837e7db71cab">ADDRESS_FROM_TRAP</a> <span class="vhdllogic">4'd9</span> <span class="keyword">// move trap {22'b0, trap[7:0], 2'b0}</span>
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<a name="l00099"></a>00099
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<a name="l00099"></a>00099
|
<a name="l00100"></a><a class="code" href="ao68000_8v.html#a6b7b916e46f4e826e397f24c7e6cd5f1">00100</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a85698146140d774ffe2b54e5be255726">SIZE_IDLE</a> <span class="vhdllogic">4'd0</span>
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<a name="l00100"></a><a class="code" href="ao68000_8v.html#a6b7b916e46f4e826e397f24c7e6cd5f1">00100</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a85698146140d774ffe2b54e5be255726">SIZE_IDLE</a> <span class="vhdllogic">4'd0</span>
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<a name="l00101"></a><a class="code" href="ao68000_8v.html#a80529f3bcf69bd83cb12853628e45dde">00101</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a8a04b85bed76a4381d1187aec9694a7e">SIZE_BYTE</a> <span class="vhdllogic">4'd1</span> <span class="keyword">// load byte: 2'b00</span>
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<a name="l00101"></a><a class="code" href="ao68000_8v.html#a80529f3bcf69bd83cb12853628e45dde">00101</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a8a04b85bed76a4381d1187aec9694a7e">SIZE_BYTE</a> <span class="vhdllogic">4'd1</span> <span class="keyword">// load byte: 3'b001</span>
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<a name="l00102"></a><a class="code" href="ao68000_8v.html#aa31da57c5af273923c08b1c95ff91fa6">00102</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a9da3fa515a6d6e5949573714c5682999">SIZE_WORD</a> <span class="vhdllogic">4'd2</span> <span class="keyword">// load word: 2'b01</span>
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<a name="l00102"></a><a class="code" href="ao68000_8v.html#aa31da57c5af273923c08b1c95ff91fa6">00102</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a9da3fa515a6d6e5949573714c5682999">SIZE_WORD</a> <span class="vhdllogic">4'd2</span> <span class="keyword">// load word: 3'b010</span>
|
<a name="l00103"></a><a class="code" href="ao68000_8v.html#a9f8b67ce84f0ac105c8c92764b32ee2d">00103</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#ae54bb350f5d3a019211af2a214f46273">SIZE_LONG</a> <span class="vhdllogic">4'd3</span> <span class="keyword">// load long: 2'b10</span>
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<a name="l00103"></a><a class="code" href="ao68000_8v.html#a9f8b67ce84f0ac105c8c92764b32ee2d">00103</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#ae54bb350f5d3a019211af2a214f46273">SIZE_LONG</a> <span class="vhdllogic">4'd3</span> <span class="keyword">// load long: 3'b100</span>
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<a name="l00104"></a><a class="code" href="ao68000_8v.html#ab2a1ed498771dd52791361f258607630">00104</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a1b8724879ab643802f27348fa58f7208">SIZE_1</a> <span class="vhdllogic">4'd4</span> <span class="keyword">// SIZE.1: word ( ir[7:6] == 2'b00 ), long ( ir[7:6] == 2'b01 )</span>
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<a name="l00104"></a><a class="code" href="ao68000_8v.html#ab2a1ed498771dd52791361f258607630">00104</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a1b8724879ab643802f27348fa58f7208">SIZE_1</a> <span class="vhdllogic">4'd4</span> <span class="keyword">// SIZE.1: word ( ir[7:6] == 2'b00 ), long ( ir[7:6] == 2'b01 )</span>
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<a name="l00105"></a><a class="code" href="ao68000_8v.html#a5118e28f30c7e8403bed7875aeb8f902">00105</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a83d20a891b85a7fabe3d8c74b66ad884">SIZE_1_PLUS</a> <span class="vhdllogic">4'd5</span> <span class="keyword">// SIZE.1+: word ( ir[7:6] == 2'b10 ), long ( ir[7:6] == 2'b11 )</span>
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<a name="l00105"></a><a class="code" href="ao68000_8v.html#a5118e28f30c7e8403bed7875aeb8f902">00105</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a83d20a891b85a7fabe3d8c74b66ad884">SIZE_1_PLUS</a> <span class="vhdllogic">4'd5</span> <span class="keyword">// SIZE.1+: word ( ir[7:6] == 2'b10 ), long ( ir[7:6] == 2'b11 )</span>
|
<a name="l00106"></a><a class="code" href="ao68000_8v.html#ac10136ab62631671a5e7ba54240bad1b">00106</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a1eca0e7e9287916bcfa96b96b0c46154">SIZE_2</a> <span class="vhdllogic">4'd6</span> <span class="keyword">// SIZE.2: word ( ir[6] == 1'b0 ), long ( ir[6] == 1'b1 )</span>
|
<a name="l00106"></a><a class="code" href="ao68000_8v.html#ac10136ab62631671a5e7ba54240bad1b">00106</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a1eca0e7e9287916bcfa96b96b0c46154">SIZE_2</a> <span class="vhdllogic">4'd6</span> <span class="keyword">// SIZE.2: word ( ir[6] == 1'b0 ), long ( ir[6] == 1'b1 )</span>
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<a name="l00107"></a><a class="code" href="ao68000_8v.html#a5e687ed60160bb8241204154edf8bdb9">00107</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#ad8d417f0548efb4299bed1ed75004cbe">SIZE_3</a> <span class="vhdllogic">4'd7</span> <span class="keyword">// SIZE.3: byte ( ir[7:6] == 2'b00 ), word ( ir[7:6] == 2'b01 ), long ( ir[7:6] == 2'b10 )</span>
|
<a name="l00107"></a><a class="code" href="ao68000_8v.html#a5e687ed60160bb8241204154edf8bdb9">00107</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#ad8d417f0548efb4299bed1ed75004cbe">SIZE_3</a> <span class="vhdllogic">4'd7</span> <span class="keyword">// SIZE.3: byte ( ir[7:6] == 2'b00 ), word ( ir[7:6] == 2'b01 ), long ( ir[7:6] == 2'b10 )</span>
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<a name="l00108"></a><a class="code" href="ao68000_8v.html#a3ec9affe31dd35c8d683099f07f57f8b">00108</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a4d9196508aad9e995d45bfda3f7c6884">SIZE_4</a> <span class="vhdllogic">4'd8</span> <span class="keyword">// SIZE.4: byte ( ir[13:12] == 2'b01 ), word( ir[13:12] == 2'b11 ), long ( ir[13:12] == 2'b10 )</span>
|
<a name="l00108"></a><a class="code" href="ao68000_8v.html#a3ec9affe31dd35c8d683099f07f57f8b">00108</a> <span class="preprocessor">`define</span> <a class="code" href="ao68000_8v.html#a4d9196508aad9e995d45bfda3f7c6884">SIZE_4</a> <span class="vhdllogic">4'd8</span> <span class="keyword">// SIZE.4: byte ( ir[13:12] == 2'b01 ), word( ir[13:12] == 2'b11 ), long ( ir[13:12] == 2'b10 )</span>
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| Line 1756... |
Line 1756... |
<a name="l01763"></a>01763
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<a name="l01763"></a>01763
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<a name="l01764"></a><a class="code" href="classregisters.html#a160e4dadb225ac705317bf8de0c78277">01764</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classregisters.html#addbaa332878673f1c1192d8c2c9cd83e">clock</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classregisters.html#a7e3a00b7da8ae2fbd8336c34673c64a8">reset_n</a>) <span class="vhdlkeyword">begin</span>
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<a name="l01764"></a><a class="code" href="classregisters.html#a160e4dadb225ac705317bf8de0c78277">01764</a> <span class="vhdlkeyword">always</span> @(<span class="vhdlkeyword">posedge</span> <a class="code" href="classregisters.html#addbaa332878673f1c1192d8c2c9cd83e">clock</a> <span class="vhdlkeyword">or</span> <span class="vhdlkeyword">negedge</span> <a class="code" href="classregisters.html#a7e3a00b7da8ae2fbd8336c34673c64a8">reset_n</a>) <span class="vhdlkeyword">begin</span>
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<a name="l01765"></a>01765 <span class="vhdlkeyword">if</span>(<a class="code" href="classregisters.html#a7e3a00b7da8ae2fbd8336c34673c64a8">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
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<a name="l01765"></a>01765 <span class="vhdlkeyword">if</span>(<a class="code" href="classregisters.html#a7e3a00b7da8ae2fbd8336c34673c64a8">reset_n</a> == <span class="vhdllogic">1'b0</span>) <span class="vhdlkeyword">begin</span>
|
<a name="l01766"></a>01766 <span class="vhdlchar">size</span> <= <span class="vhdllogic">2'b00</span>;
|
<a name="l01766"></a>01766 <span class="vhdlchar">size</span> <= <span class="vhdllogic">2'b00</span>;
|
<a name="l01767"></a>01767 <span class="vhdlkeyword">end</span>
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<a name="l01767"></a>01767 <span class="vhdlkeyword">end</span>
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<a name="l01768"></a>01768 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">begin</span>
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<a name="l01768"></a>01768 <span class="vhdlkeyword">else</span> <span class="vhdlkeyword">if</span>(<span class="vhdlchar">size_control</span> != <a class="code" href="ao68000_8v.html#a85698146140d774ffe2b54e5be255726">`SIZE_IDLE</a><span class="vhdlchar"></span>) <span class="vhdlkeyword">begin</span>
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<a name="l01769"></a>01769 <span class="keyword">// BYTE</span>
|
<a name="l01769"></a>01769 <span class="keyword">// BYTE</span>
|
<a name="l01770"></a>01770 <span class="vhdlchar">size</span>[<span class="vhdllogic">0</span>] <= (<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#a8a04b85bed76a4381d1187aec9694a7e">`SIZE_BYTE</a><span class="vhdlchar"></span>)
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<a name="l01770"></a>01770 <span class="vhdlchar">size</span>[<span class="vhdllogic">0</span>] <= (<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#a8a04b85bed76a4381d1187aec9694a7e">`SIZE_BYTE</a><span class="vhdlchar"></span>)
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<a name="l01771"></a>01771 | ((<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#ad8d417f0548efb4299bed1ed75004cbe">`SIZE_3</a><span class="vhdlchar"></span>) && (<span class="vhdlchar">ir</span>[<span class="vhdllogic">7</span>:<span class="vhdllogic">6</span>] == <span class="vhdllogic">2'b00</span>))
|
<a name="l01771"></a>01771 | ((<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#ad8d417f0548efb4299bed1ed75004cbe">`SIZE_3</a><span class="vhdlchar"></span>) && (<span class="vhdlchar">ir</span>[<span class="vhdllogic">7</span>:<span class="vhdllogic">6</span>] == <span class="vhdllogic">2'b00</span>))
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<a name="l01772"></a>01772 | ((<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#a4d9196508aad9e995d45bfda3f7c6884">`SIZE_4</a><span class="vhdlchar"></span>) && (<span class="vhdlchar">ir</span>[<span class="vhdllogic">13</span>:<span class="vhdllogic">12</span>] == <span class="vhdllogic">2'b01</span>))
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<a name="l01772"></a>01772 | ((<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#a4d9196508aad9e995d45bfda3f7c6884">`SIZE_4</a><span class="vhdlchar"></span>) && (<span class="vhdlchar">ir</span>[<span class="vhdllogic">13</span>:<span class="vhdllogic">12</span>] == <span class="vhdllogic">2'b01</span>))
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<a name="l01773"></a>01773 | ((<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#a3ce4d5e820fe7c438d0bd9c7f067ac3f">`SIZE_6</a><span class="vhdlchar"></span>) && (<span class="vhdlchar">ir</span>[<span class="vhdllogic">5</span>:<span class="vhdllogic">3</span>] != <span class="vhdllogic">3'b000</span>));
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<a name="l01773"></a>01773 | ((<span class="vhdlchar">size_control</span> == <a class="code" href="ao68000_8v.html#a3ce4d5e820fe7c438d0bd9c7f067ac3f">`SIZE_6</a><span class="vhdlchar"></span>) && (<span class="vhdlchar">ir</span>[<span class="vhdllogic">5</span>:<span class="vhdllogic">3</span>] != <span class="vhdllogic">3'b000</span>));
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| Line 3449... |
Line 3449... |
<a name="l03494"></a>03494 <span class="vhdlkeyword">end</span>
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<a name="l03494"></a>03494 <span class="vhdlkeyword">end</span>
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<a name="l03495"></a>03495
|
<a name="l03495"></a>03495
|
<a name="l03496"></a>03496 <span class="vhdlkeyword">endmodule</span>
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<a name="l03496"></a>03496 <span class="vhdlkeyword">endmodule</span>
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</pre></div></div>
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</pre></div></div>
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</div>
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</div>
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<hr class="footer"/><address class="footer"><small>Generated on Sat Jan 15 2011 16:54:37 for ao68000 by 
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.2 </small></address>
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<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.2 </small></address>
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