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Subject: Re: random book moves/ random generator

Author: Tom Kerrigan

Date: 00:27:24 01/14/00

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I just ran the program below with Visual C++ 5.0 and Windows 98. It runs for 10
seconds and counts how many times GetTickCount() changes. In 10 seconds, it
changed 2001 times, indicating that it changes every 5 ms. This is fine and
good, but it does not explain how I can get the following analysis, also using
GetTickCount():

position 002
Position: 8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - - 0 1
Solution(s): Rxb2
ply        time       nodes   score  pv
 1.       0.008          24    0.20  Ke6
 2+       0.013         156    0.70  Ke6 e4
 2.       0.015         232    0.94  c3 bxc3 ...
 3.       0.017         341    0.94  c3 bxc3 ...
 4.       0.023         868    0.91  c3 bxc3 ...
 5.       0.029        2024    0.92  c3 bxc3 ...
 6.       0.050        5822    0.82  c3 bxc3 ...
 7.       0.073       12050    0.93  c3 bxc3 ...

-Tom


/* begin GetTickCount() test program */
#include <stdio.h>
#include <windows.h>

void main()
{
	int t, stop, old, ticks = 0;

	old = GetTickCount();
	stop = old + 10000;
	for (;;) {
		t = GetTickCount();
		if (t != old) {
			++ticks;
			if (t > stop)
				break;
			old = t;
		}
	}
	printf("ticks: %d\n", ticks);
	getc(stdin);
}



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