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kolibrios/programs/games/mine/trunk/random.h--
Ivan Poddubny c0ef030710 v0.4 (16/10/2004)
- small fixes
 - resizing by kernel

v0.3c (16/09/2003)
 - mines indicator fixed
 - better timer

v0.3b (13/08/2003)
 - mines indicator fixed

git-svn-id: svn://kolibrios.org@126 a494cfbc-eb01-0410-851d-a64ba20cac60
2006-08-14 14:06:52 +00:00

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/*******************************************************************************
MenuetOS MineSweeper
Copyright (C) 2003, 2004 Ivan Poddubny
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*******************************************************************************/
dword generator; // random number generator - äëÿ ãåíåðàöèè ñëó÷àéíûõ ÷èñåë
:int random(int max)
// get pseudo-random number - ïîëó÷èòü ïñåâäîñëó÷àéíîå ÷èñëî
{
$rdtsc // eax & edx
$xor eax,edx
$not eax
EBX = generator;
$ror ebx,3
$xor ebx,0xdeadbeef
EBX += EAX;
generator = EBX;
EAX += EBX;
EAX = EAX % max;
return EAX;
}
:randomize()
// initialize random number generator - èíèöèàëèçèðîâàòü ãåíåðàòîð ñëó÷àéíûõ ÷èñåë
{
asm
{
mov eax,3
int 0x40
ror eax,16
}
generator = EAX;
}