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ZealOS/docs/Demo/Lectures/InterruptDemo.CC.html
TomAwezome 1b75d91002 Fix Mount AHCI Port selection. 
Add arg to SATARep to specify drive types to show.
Add checks in AHCIPortInit to verify port signatures, add helper method to get signatures from port.
2021-08-02 16:40:05 -04:00

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<a name="l1"></a><span class=cF2>//This is the software interrupt num</span><span class=cF0>
<a name="l2"></a></span><span class=cF2>//we will use. See </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l336"><span class=cF4>Software Int's</span></a><span class=cF2> for</span><span class=cF0>
<a name="l3"></a></span><span class=cF2>//picking a num. Nums are subject to change.</span><span class=cF0>
<a name="l4"></a>
<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>
<a name="l6"></a>
<a name="l7"></a></span><span class=cF1>asm</span><span class=cF0> {
<a name="l8"></a>
<a name="l9"></a></span><span class=cF2>//This changes the sign of the floating</span><span class=cF0>
<a name="l10"></a></span><span class=cF2>//point val in RAX</span><span class=cF0>
<a name="l11"></a>F_UNARY_MINUS_INT::
<a name="l12"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<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>]
<a name="l14"></a> </span><span class=cF1>FCHS</span><span class=cF0>
<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>]
<a name="l16"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l17"></a> </span><span class=cF1>IRET</span><span class=cF0>
<a name="l18"></a>
<a name="l19"></a></span><span class=cF2>//This does the same thing, but not as</span><span class=cF0>
<a name="l20"></a></span><span class=cF2>//an interrupt.</span><span class=cF0>
<a name="l21"></a>F_UNARY_MINUS_CALL::
<a name="l22"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<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>]
<a name="l24"></a> </span><span class=cF1>FCHS</span><span class=cF0>
<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>]
<a name="l26"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RAX</span><span class=cF0>
<a name="l27"></a> </span><span class=cF1>RET</span><span class=cF0>
<a name="l28"></a>
<a name="l29"></a></span><span class=cF2>//This invokes the interrupt version</span><span class=cF0>
<a name="l30"></a></span><span class=cF2>//with a C callable function.</span><span class=cF0>
<a name="l31"></a>_F_UM_INT::
<a name="l32"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<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>
<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>]
<a name="l35"></a> </span><span class=cF1>INT</span><span class=cF0> I_F_UNARY_MINUS
<a name="l36"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l37"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0>
<a name="l38"></a>
<a name="l39"></a></span><span class=cF2>//This invokes the call version</span><span class=cF0>
<a name="l40"></a></span><span class=cF2>//with a C callable function.</span><span class=cF0>
<a name="l41"></a>_F_UM_CALL::
<a name="l42"></a> </span><span class=cF1>PUSH</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<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>
<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>]
<a name="l45"></a> </span><span class=cF1>CALL</span><span class=cF0> F_UNARY_MINUS_CALL
<a name="l46"></a> </span><span class=cF1>POP</span><span class=cF0> </span><span class=cFC>RBP</span><span class=cF0>
<a name="l47"></a> </span><span class=cF1>RET1</span><span class=cF0> </span><span class=cFE>8</span><span class=cF0>
<a name="l48"></a>}
<a name="l49"></a>
<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);
<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);
<a name="l52"></a>
<a name="l53"></a>#</span><span class=cF1>define</span><span class=cF0> SAMPLE_SIZE </span><span class=cFE>1000000</span><span class=cF0>
<a name="l54"></a></span><span class=cF1>U0</span><span class=cF0> </span><span class=cF5>TimeIns</span><span class=cF0>()
<a name="l55"></a>{
<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>;
<a name="l57"></a> </span><span class=cF9>I64</span><span class=cF0> i, old_irq;
<a name="l58"></a>
<a name="l59"></a> </span><span class=cF5>CPURep</span><span class=cF0>;
<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>);
<a name="l61"></a>
<a name="l62"></a> </span><span class=cF2>//Measure interrupt time</span><span class=cF0>
<a name="l63"></a> </span><span class=cF1>start</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
<a name="l64"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; SAMPLE_SIZE; i++)
<a name="l65"></a> UnaryMinusInt(</span><span class=cF3>pi</span><span class=cF0>);
<a name="l66"></a> </span><span class=cF1>end</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
<a name="l67"></a> </span><span class=cF6>&quot;Interrupt Cycles: %10.5f\n&quot;</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;
<a name="l68"></a>
<a name="l69"></a> </span><span class=cF2>//Measure call time</span><span class=cF0>
<a name="l70"></a> </span><span class=cF1>start</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
<a name="l71"></a> </span><span class=cF1>for</span><span class=cF0> (i = </span><span class=cFE>0</span><span class=cF0>; i &lt; SAMPLE_SIZE; i++)
<a name="l72"></a> UnaryMinusCall(</span><span class=cF3>pi</span><span class=cF0>);
<a name="l73"></a> </span><span class=cF1>end</span><span class=cF0> = </span><span class=cF5>TSCGet</span><span class=cF0>;
<a name="l74"></a> </span><span class=cF6>&quot;Call Cycles: %10.5f\n&quot;</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;
<a name="l75"></a>
<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>);
<a name="l77"></a>}
<a name="l78"></a>
<a name="l79"></a></span><span class=cF5>TimeIns</span><span class=cF0>;
<a name="l80"></a>
<a name="l81"></a></span><span class=cF2>/*</span><span class=cF0> </span><span class=cF2>Program Output</span><span class=cF1>
<a name="l82"></a>6 Cores 3.395GHz
<a name="l83"></a>Interrupt Cycles: 573.98543
<a name="l84"></a>Call Cycles: 9.74349
<a name="l85"></a></span><span class=cF2>*/</span><span class=cF1>
<a name="l86"></a>
</span></pre></body>
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