mirror of
https://github.com/Zeal-Operating-System/ZealOS.git
synced 2024-12-30 17:26:31 +00:00
53 lines
1,001 B
C++
Executable file
53 lines
1,001 B
C++
Executable file
I64 Recurse(I64 n)
|
|
{
|
|
if (n)
|
|
return 1+CallStackGrow(0x800,0x1000000,&Recurse,n-1);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
I64 Recurse2(I64 n)
|
|
{
|
|
if (n)
|
|
return 1+Recurse2(n-1);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
I64 Recurse3(I64 n,I64 lo,I64 hi)
|
|
{
|
|
if (lo<=n<hi)
|
|
return 1+Recurse3(n-1,lo,hi);
|
|
else if (n)
|
|
return Recurse3(n-1,lo,hi);
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
#define DEPTH (2*1024*1024)
|
|
|
|
U0 StackGrowDemo()
|
|
{
|
|
F64 t0;
|
|
|
|
t0=tS;
|
|
"%X:%X\n",DEPTH,Recurse(DEPTH);
|
|
"Time:%7.5fs\n",tS-t0;
|
|
|
|
//If you know the max stack ahead of time...
|
|
//Recurse2's stack is 16 because you have 1 arg,
|
|
//a return addr and no local variables.
|
|
t0=tS;
|
|
"%X:%X\n",DEPTH,CallStackGrow(DEPTH*16+0x800,DEPTH*16+0x800,&Recurse2,DEPTH);
|
|
"Time:%7.5fs\n",tS-t0;
|
|
|
|
//$LK,"CallStackGrow",A="MN:CallStackGrow"$() works with multiple args.
|
|
t0=tS;
|
|
"%X:%X\n",DEPTH,CallStackGrow(DEPTH*32+0x800,DEPTH*32+0x800,
|
|
&Recurse3,DEPTH,1000,2000);
|
|
"Time:%7.5fs\n",tS-t0;
|
|
}
|
|
|
|
StackGrowDemo;
|
|
|
|
//Be careful because you can fragment memory.
|