mirror of
https://github.com/Zeal-Operating-System/ZealOS.git
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54 lines
987 B
HolyC
54 lines
987 B
HolyC
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I64 Recurse(I64 n)
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{
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if (n)
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return 1+CallStkGrow(0x800,0x1000000,&Recurse,n-1);
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else
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return 0;
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}
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I64 Recurse2(I64 n)
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{
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if (n)
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return 1+Recurse2(n-1);
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else
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return 0;
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}
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I64 Recurse3(I64 n,I64 lo,I64 hi)
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{
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if (lo<=n<hi)
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return 1+Recurse3(n-1,lo,hi);
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else if (n)
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return Recurse3(n-1,lo,hi);
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else
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return 0;
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}
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#define DEPTH (2*1024*1024)
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U0 StkGrowDemo()
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{
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F64 t0;
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t0=tS;
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"%X:%X\n",DEPTH,Recurse(DEPTH);
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"Time:%7.5fs\n",tS-t0;
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//If you know the max stack ahead of time...
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//Recurse2's stack is 16 because you have 1 arg,
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//a return addr and no local variables.
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t0=tS;
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"%X:%X\n",DEPTH,CallStkGrow(DEPTH*16+0x800,DEPTH*16+0x800,&Recurse2,DEPTH);
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"Time:%7.5fs\n",tS-t0;
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//$LK,"CallStkGrow",A="MN:CallStkGrow"$() works with multiple args.
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t0=tS;
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"%X:%X\n",DEPTH,CallStkGrow(DEPTH*32+0x800,DEPTH*32+0x800,
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&Recurse3,DEPTH,1000,2000);
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"Time:%7.5fs\n",tS-t0;
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}
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StkGrowDemo;
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//Be careful because you can fragment memory.
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