<!DOCTYPE HTML> <html> <head> <meta http-equiv="Content-Type" content="text/html;charset=US-ASCII"> <meta name="generator" content="ZealOS V1.00"> <style type="text/css"> body {background-color:#fef1f0;} .cF0{color:#000000;background-color:#fef1f0;} .cF1{color:#0148a4;background-color:#fef1f0;} .cF2{color:#3b7901;background-color:#fef1f0;} .cF3{color:#057c7e;background-color:#fef1f0;} .cF4{color:#bb2020;background-color:#fef1f0;} .cF5{color:#9e42ae;background-color:#fef1f0;} .cF6{color:#b57901;background-color:#fef1f0;} .cF7{color:#b2b6af;background-color:#fef1f0;} .cF8{color:#555753;background-color:#fef1f0;} .cF9{color:#678fbb;background-color:#fef1f0;} .cFA{color:#82bc49;background-color:#fef1f0;} .cFB{color:#0097a2;background-color:#fef1f0;} .cFC{color:#e26a6a;background-color:#fef1f0;} .cFD{color:#c671bc;background-color:#fef1f0;} .cFE{color:#c7ab00;background-color:#fef1f0;} .cFF{color:#fef1f0;background-color:#fef1f0;} </style> </head> <body> <pre style="font-family:monospace;font-size:12pt"> <a name="l1"></a><span class=cF9>I64</span><span class=cF0> Recurse(</span><span class=cF9>I64</span><span class=cF0> n) <a name="l2"></a>{ <a name="l3"></a> </span><span class=cF1>if</span><span class=cF0> (n) <a name="l4"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>1</span><span class=cF0> + </span><span class=cF5>CallStackGrow</span><span class=cF0>(</span><span class=cFE>0x800</span><span class=cF0>, </span><span class=cFE>0x1000000</span><span class=cF0>, &Recurse, n - </span><span class=cFE>1</span><span class=cF0>); <a name="l5"></a> </span><span class=cF1>else</span><span class=cF0> <a name="l6"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>; <a name="l7"></a>} <a name="l8"></a> <a name="l9"></a></span><span class=cF9>I64</span><span class=cF0> Recurse2(</span><span class=cF9>I64</span><span class=cF0> n) <a name="l10"></a>{ <a name="l11"></a> </span><span class=cF1>if</span><span class=cF0> (n) <a name="l12"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>1</span><span class=cF0> + Recurse2(n - </span><span class=cFE>1</span><span class=cF0>); <a name="l13"></a> </span><span class=cF1>else</span><span class=cF0> <a name="l14"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>; <a name="l15"></a>} <a name="l16"></a> <a name="l17"></a></span><span class=cF9>I64</span><span class=cF0> Recurse3(</span><span class=cF9>I64</span><span class=cF0> n, </span><span class=cF9>I64</span><span class=cF0> lo, </span><span class=cF9>I64</span><span class=cF0> hi) <a name="l18"></a>{ <a name="l19"></a> </span><span class=cF1>if</span><span class=cF0> (lo <= n < hi) <a name="l20"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>1</span><span class=cF0> + Recurse3(n - </span><span class=cFE>1</span><span class=cF0>, lo, hi); <a name="l21"></a> </span><span class=cF1>else</span><span class=cF0> </span><span class=cF1>if</span><span class=cF0> (n) <a name="l22"></a> </span><span class=cF1>return</span><span class=cF0> Recurse3(n - </span><span class=cFE>1</span><span class=cF0>, lo, hi); <a name="l23"></a> </span><span class=cF1>else</span><span class=cF0> <a name="l24"></a> </span><span class=cF1>return</span><span class=cF0> </span><span class=cFE>0</span><span class=cF0>; <a name="l25"></a>} <a name="l26"></a> <a name="l27"></a>#</span><span class=cF1>define</span><span class=cF0> DEPTH (</span><span class=cFE>2</span><span class=cF0> * </span><span class=cFE>1024</span><span class=cF0> * </span><span class=cFE>1024</span><span class=cF0>) <a name="l28"></a> <a name="l29"></a></span><span class=cF1>U0</span><span class=cF0> StackGrowDemo() <a name="l30"></a>{ <a name="l31"></a> </span><span class=cF1>F64</span><span class=cF0> t0; <a name="l32"></a> <a name="l33"></a> t0 = </span><span class=cF5>tS</span><span class=cF0>; <a name="l34"></a> </span><span class=cF6>"%X:%X\n"</span><span class=cF0>, DEPTH, Recurse(DEPTH); <a name="l35"></a> </span><span class=cF6>"Time:%7.5fs\n"</span><span class=cF0>, </span><span class=cF5>tS</span><span class=cF0> - t0; <a name="l36"></a> <a name="l37"></a> </span><span class=cF2>//If you know the max stack ahead of time...</span><span class=cF0> <a name="l38"></a> </span><span class=cF2>//Recurse2's stack is 16 because you have 1 arg,</span><span class=cF0> <a name="l39"></a> </span><span class=cF2>//a return addr and no local variables.</span><span class=cF0> <a name="l40"></a> t0 = </span><span class=cF5>tS</span><span class=cF0>; <a name="l41"></a> </span><span class=cF6>"%X:%X\n"</span><span class=cF0>, DEPTH, </span><span class=cF5>CallStackGrow</span><span class=cF0>(DEPTH * </span><span class=cFE>16</span><span class=cF0> + </span><span class=cFE>0x800</span><span class=cF0>, DEPTH * </span><span class=cFE>16</span><span class=cF0> + </span><span class=cFE>0x800</span><span class=cF0>, &Recurse2, DEPTH); <a name="l42"></a> </span><span class=cF6>"Time:%7.5fs\n"</span><span class=cF0>, </span><span class=cF5>tS</span><span class=cF0> - t0; <a name="l43"></a> <a name="l44"></a> </span><span class=cF2>//</span><a href="https://zeal-operating-system.github.io/ZealOS/Kernel/KTask.CC.html#l129"><span class=cF4>CallStackGrow</span></a><span class=cF2>() works with multiple args.</span><span class=cF0> <a name="l45"></a> t0 = </span><span class=cF5>tS</span><span class=cF0>; <a name="l46"></a> </span><span class=cF6>"%X:%X\n"</span><span class=cF0>, DEPTH, </span><span class=cF5>CallStackGrow</span><span class=cF0>(DEPTH * </span><span class=cFE>32</span><span class=cF0> + </span><span class=cFE>0x800</span><span class=cF0>, DEPTH * </span><span class=cFE>32</span><span class=cF0> + </span><span class=cFE>0x800</span><span class=cF0>, &Recurse3, DEPTH, </span><span class=cFE>1000</span><span class=cF0>, </span><span class=cFE>2000</span><span class=cF0>); <a name="l47"></a> </span><span class=cF6>"Time:%7.5fs\n"</span><span class=cF0>, </span><span class=cF5>tS</span><span class=cF0> - t0; <a name="l48"></a>} <a name="l49"></a> <a name="l50"></a>StackGrowDemo; <a name="l51"></a> <a name="l52"></a></span><span class=cF2>//Be careful because you can fragment memory.</span><span class=cF0> </span></pre></body> </html>