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51 lines
3.2 KiB
HTML
Executable file
51 lines
3.2 KiB
HTML
Executable file
<!DOCTYPE HTML>
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html;charset=US-ASCII">
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<meta name="generator" content="ZealOS V0.16">
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<style type="text/css">
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body {background-color:#fef1f0;}
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.cF0{color:#000000;background-color:#fef1f0;}
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.cF1{color:#0148a4;background-color:#fef1f0;}
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.cF2{color:#3b7901;background-color:#fef1f0;}
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.cF3{color:#057c7e;background-color:#fef1f0;}
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.cF4{color:#bb2020;background-color:#fef1f0;}
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.cF5{color:#9e42ae;background-color:#fef1f0;}
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.cF6{color:#b57901;background-color:#fef1f0;}
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.cF7{color:#b2b6af;background-color:#fef1f0;}
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.cF8{color:#555753;background-color:#fef1f0;}
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.cF9{color:#678fbb;background-color:#fef1f0;}
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.cFA{color:#82bc49;background-color:#fef1f0;}
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.cFB{color:#0097a2;background-color:#fef1f0;}
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.cFC{color:#e26a6a;background-color:#fef1f0;}
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.cFD{color:#c671bc;background-color:#fef1f0;}
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.cFE{color:#c7ab00;background-color:#fef1f0;}
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.cFF{color:#fef1f0;background-color:#fef1f0;}
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</style>
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</head>
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<body>
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<pre style="font-family:monospace;font-size:12pt">
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<a name="l1"></a><span class=cF2>/*ZealOS has a feature that allows access to bytes and words of larger ints.</span><span class=cF0>
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<a name="l2"></a>
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<a name="l3"></a></span><span class=cF2>See </span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KernelA.HH.html#l93"><span class=cF4>U64i union</span></a><span class=cF2>.</span><span class=cF0>
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<a name="l4"></a></span><span class=cF2> </span><span class=cF0>
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<a name="l5"></a></span><span class=cF2>The versions with "i" are internal data types. Use "I64" instead of "U64i" and you will have access to subbytes and subwords.</span><span class=cF0>
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<a name="l6"></a>
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<a name="l7"></a></span><span class=cF2>Unfortunately, byte access causes the compiler to not use a reg for the variable.</span><span class=cF0>
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<a name="l8"></a>
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<a name="l9"></a></span><span class=cF2>See </span><a href="https://zeal-operating-system.github.io/ZealOS/Demo/Lectures/FixedPoint.CC.html#l1"><span class=cF4>::/Demo/Lectures/FixedPoint.CC</span></a><span class=cF2>.</span><span class=cF0>
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<a name="l10"></a></span><span class=cF2>*/</span><span class=cF0>
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<a name="l11"></a>
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<a name="l12"></a></span><span class=cF9>I64</span><span class=cF0> q = </span><span class=cFE>0xFEDCBA9876543210</span><span class=cF0>, q1;
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<a name="l13"></a>
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<a name="l14"></a></span><span class=cF6>"q\t\t\t\t=%016X\n"</span><span class=cF0>, q;
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<a name="l15"></a>q1 = q.i16[</span><span class=cFE>2</span><span class=cF0>];
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<a name="l16"></a></span><span class=cF6>"q.i16[2]\t\t=%016X\n"</span><span class=cF0>, q1;
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<a name="l17"></a>q1 = q.u8[</span><span class=cFE>5</span><span class=cF0>];
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<a name="l18"></a></span><span class=cF6>"q.u8[5]\t\t\t=%016X\n"</span><span class=cF0>, q1;
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<a name="l19"></a>q1 = q.i32[</span><span class=cFE>1</span><span class=cF0>].u8[</span><span class=cFE>2</span><span class=cF0>];
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<a name="l20"></a></span><span class=cF6>"q.i32[1].u8[2]\t=%016X\n"</span><span class=cF0>, q1;
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<a name="l21"></a>q1 = q.i32[</span><span class=cFE>0</span><span class=cF0>].i8[</span><span class=cFE>1</span><span class=cF0>];
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<a name="l22"></a></span><span class=cF6>"q.i32[0].i8[1]\t=%016X\n"</span><span class=cF0>, q1;
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</span></pre></body>
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</html>
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