117 lines
9.2 KiB
Plaintext
117 lines
9.2 KiB
Plaintext
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<body>
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<pre id="content">
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<a name="l1"></a><span class=cF2>//This is the software interrupt num</span><span class=cF0>
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<a name="l2"></a></span><span class=cF2>//we will use. See </span><a href="/Wb/Kernel/KernelA.HH.HTML#l308"><span class=cF4>Software Int's</span></a><span class=cF2> for</span><span class=cF0>
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<a name="l3"></a></span><span class=cF2>//picking a num. Nums are subject to change.</span><span class=cF0>
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<a name="l4"></a>
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<a name="l5"></a>#</span><span class=cF1>define</span><span class=cF0> I_F_UNARY_MINUS </span><span class=cF3>I_USER</span><span class=cF0>
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<a name="l6"></a>
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<a name="l7"></a></span><span class=cF1>asm</span><span class=cF0> {
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<a name="l8"></a>
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<a name="l9"></a></span><span class=cF2>//This changes the sign of the floating</span><span class=cF0>
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<a name="l10"></a></span><span class=cF2>//point val in RAX</span><span class=cF0>
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<a name="l11"></a>F_UNARY_MINUS_INT::
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<a name="l12"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
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<a name="l13"></a> </span><span class=cF1>FLD</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFC>RSP</span><span class=cF0>]
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<a name="l14"></a> </span><span class=cF1>FCHS</span><span class=cF0>
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<a name="l15"></a> </span><span class=cF1>FSTP</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFC>RSP</span><span class=cF0>]
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<a name="l16"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
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<a name="l17"></a> </span><span class=cF1>IRET</span><span class=cF0>
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<a name="l18"></a>
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<a name="l19"></a></span><span class=cF2>//This does the same thing, but not as</span><span class=cF0>
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<a name="l20"></a></span><span class=cF2>//an interrupt.</span><span class=cF0>
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<a name="l21"></a>F_UNARY_MINUS_CALL::
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<a name="l22"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
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<a name="l23"></a> </span><span class=cF1>FLD</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFC>RSP</span><span class=cF0>]
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<a name="l24"></a> </span><span class=cF1>FCHS</span><span class=cF0>
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<a name="l25"></a> </span><span class=cF1>FSTP</span><span class=cF0> </span><span class=cF9>U64</span><span class=cF0> [</span><span class=cFC>RSP</span><span class=cF0>]
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<a name="l26"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
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<a name="l27"></a> </span><span class=cF1>RET</span><span class=cF0>
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<a name="l28"></a>
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<a name="l29"></a></span><span class=cF2>//This invokes the interrupt version</span><span class=cF0>
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<a name="l30"></a></span><span class=cF2>//with a C callable function.</span><span class=cF0>
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<a name="l31"></a>_F_UM_INT::
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<a name="l32"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
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<a name="l33"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>,</span><span class=cFC>RSP</span><span class=cF0>
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<a name="l34"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>,</span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
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<a name="l35"></a> </span><span class=cF1>INT</span><span class=cF0> I_F_UNARY_MINUS
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<a name="l36"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
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<a name="l37"></a> </span><span class=cF1>RET1</span><span class=cF0> 8
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<a name="l38"></a>
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<a name="l39"></a></span><span class=cF2>//This invokes the call version</span><span class=cF0>
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<a name="l40"></a></span><span class=cF2>//with a C callable function.</span><span class=cF0>
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<a name="l41"></a>_F_UM_CALL::
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<a name="l42"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
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<a name="l43"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>,</span><span class=cFC>RSP</span><span class=cF0>
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<a name="l44"></a> </span><span class=cF1>MOV</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>,</span><span class=cF3>SF_ARG1</span><span class=cF0>[</span><span class=cFC>RBP</span><span class=cF0>]
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<a name="l45"></a> </span><span class=cF1>CALL</span><span class=cF0> F_UNARY_MINUS_CALL
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<a name="l46"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
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<a name="l47"></a> </span><span class=cF1>RET1</span><span class=cF0> 8
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<a name="l48"></a>}
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<a name="l49"></a>
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<a name="l50"></a></span><span class=cF1>_extern</span><span class=cF0> _F_UM_INT </span><span class=cF1>F64</span><span class=cF0> UnaryMinusInt(</span><span class=cF1>F64</span><span class=cF0> d);
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<a name="l51"></a></span><span class=cF1>_extern</span><span class=cF0> _F_UM_CALL </span><span class=cF1>F64</span><span class=cF0> UnaryMinusCall(</span><span class=cF1>F64</span><span class=cF0> d);
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<a name="l52"></a>
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<a name="l53"></a>#</span><span class=cF1>define</span><span class=cF0> SAMPLE_SIZE 1000000
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<a name="l54"></a></span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>TimeIns</span><span class=cF0>()
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<a name="l55"></a>{
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<a name="l56"></a> </span><span class=cF9>I64</span><span class=cF0> </span><span class=cF1>start</span><span class=cF0>,</span><span class=cF1>end</span><span class=cF0>;
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<a name="l57"></a> </span><span class=cF9>I64</span><span class=cF0> i,old_irq;
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<a name="l58"></a>
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<a name="l59"></a> </span><span class=cF5>CPURep</span><span class=cF0>;
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<a name="l60"></a> old_irq=</span><span class=cF5>IntEntrySet</span><span class=cF0>(I_F_UNARY_MINUS,F_UNARY_MINUS_INT,</span><span class=cF3>IDTET_TRAP</span><span class=cF0>);
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<a name="l61"></a>
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<a name="l62"></a> </span><span class=cF2>//Measure interrupt time</span><span class=cF0>
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<a name="l63"></a> </span><span class=cF1>start</span><span class=cF0>=</span><span class=cF5>GetTSC</span><span class=cF0>;
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<a name="l64"></a> </span><span class=cF1>for</span><span class=cF0> (i=0;i<SAMPLE_SIZE;i++)
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<a name="l65"></a> UnaryMinusInt(</span><span class=cF3>pi</span><span class=cF0>);
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<a name="l66"></a> </span><span class=cF1>end</span><span class=cF0>=</span><span class=cF5>GetTSC</span><span class=cF0>;
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<a name="l67"></a> </span><span class=cF6>"Interrupt Cycles: %10.5f\n"</span><span class=cF0>,</span><span class=cF5>ToF64</span><span class=cF0>(</span><span class=cF1>end</span><span class=cF0>-</span><span class=cF1>start</span><span class=cF0>)/SAMPLE_SIZE;
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<a name="l68"></a>
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<a name="l69"></a> </span><span class=cF2>//Measure call time</span><span class=cF0>
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<a name="l70"></a> </span><span class=cF1>start</span><span class=cF0>=</span><span class=cF5>GetTSC</span><span class=cF0>;
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<a name="l71"></a> </span><span class=cF1>for</span><span class=cF0> (i=0;i<SAMPLE_SIZE;i++)
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<a name="l72"></a> UnaryMinusCall(</span><span class=cF3>pi</span><span class=cF0>);
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<a name="l73"></a> </span><span class=cF1>end</span><span class=cF0>=</span><span class=cF5>GetTSC</span><span class=cF0>;
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<a name="l74"></a> </span><span class=cF6>"Call Cycles: %10.5f\n"</span><span class=cF0>,</span><span class=cF5>ToF64</span><span class=cF0>(</span><span class=cF1>end</span><span class=cF0>-</span><span class=cF1>start</span><span class=cF0>)/SAMPLE_SIZE;
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<a name="l75"></a>
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<a name="l76"></a> </span><span class=cF5>IntEntrySet</span><span class=cF0>(I_F_UNARY_MINUS,old_irq,</span><span class=cF3>IDTET_IRQ</span><span class=cF0>);
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<a name="l77"></a>}
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<a name="l78"></a>
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<a name="l79"></a></span><span class=cF5>TimeIns</span><span class=cF0>;
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<a name="l80"></a>
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<a name="l81"></a></span><span class=cF2>/* Program Output</span><span class=cF1>
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<a name="l82"></a>6 Cores 3.395GHz
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<a name="l83"></a>Interrupt Cycles: 573.98543
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<a name="l84"></a>Call Cycles: 9.74349
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<a name="l85"></a></span><span class=cF2>*/</span><span class=cF1>
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</span></pre></body>
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