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<title>PM0044 5.4.2 Optimize pipeline example - execution from RAM, table 8</title>
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<h1>PM0044 5.4.2 Optimize pipeline example - execution from RAM, table 8</h1>
<table id="pipetrace_legend" class="pipetrace">
<tr><td colspan="2">Legend</td></tr>
<tr><td class="D" /><td class="defn">Decode</td></tr>
<tr><td class="E" /><td class="defn">Execute</td></tr>
<tr><td><span class="F" /></td><td class="defn">Fetch</td></tr>
<tr><td class="X" /><td class="defn">Flush</td></tr>
<tr><td><span class="FS" /></td><td class="defn">Fetch Stall - space in prefetch buffer but bus busy</td></tr>
<tr><td class="Sbus" /><td class="defn">Decode Stall - bus busy</td></tr>
<tr><td class="Sfetch" /><td class="defn">Decode Stall - insufficient data in prefetch buffer</td></tr>
<tr><td class="Sraw" /><td class="defn">Decode Stall - read after write</td></tr>
</table>
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<tr><td /><td class="Flushed" /></tr>
<tr><td>0x00104</td><td class="instr">neg A</td><td class=""><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
<tr><td>0x00105</td><td class="instr">xor A,0x10</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
<tr><td>0x00107</td><td class="instr">ld A,#0x14</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
<tr><td>0x00109</td><td class="instr">sub A,0x1000</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
<tr><td>0x0010c</td><td class="instr">inc A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D Sfetch"><span class="F" /></td><td class=" D"><span class="F" /></td><td class=" E" /></tr>
<tr><td>0x0010d</td><td class="instr">ld XL,A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
<tr><td>0x0010e</td><td class="instr">srl A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
<tr><td>0x0010f</td><td class="instr">swap A</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="F" /></td><td class=" E" /></tr>
<tr><td>0x00110</td><td class="instr">sla 0x15</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
<tr><td>0x00112</td><td class="instr">cp A,#0xfe</td><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class="" /><td class=" D"><span class="FS" /></td><td class=" E" /></tr>
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<tr><th>Address</th><th>Instruction</th><th class="n">1</th><th class="n">2</th><th class="n">3</th><th class="n">4</th><th class="n">5</th><th class="n">6</th><th class="n">7</th><th class="n">8</th><th class="n">9</th><th class="n">10</th><th class="n">11</th><th class="n">12</th><th class="n">13</th><th class="n">14</th><th class="n">15</th><th class="n">16</th><th class="n">17</th><th class="n">18</th><th class="n">19</th><th class="n">20</th><th class="n">21</th>
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