forked from KolibriOS/kolibrios
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
|
/*******************************************************************************
|
|||
|
|
|
|||
|
|
MenuetOS MineSweeper
|
|||
|
|
Copyright (C) 2003 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 - <20><><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
|
|||
|
|
|
|||
|
|
inline fastcall int random( ECX)
|
|||
|
|
// get pseudo-random number - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
|
|||
|
|
{
|
|||
|
|
$push ebx
|
|||
|
|
|
|||
|
|
$rdtsc // eax & edx
|
|||
|
|
$xor eax,edx
|
|||
|
|
$not eax
|
|||
|
|
|
|||
|
|
EBX = generator;
|
|||
|
|
$ror ebx,3
|
|||
|
|
$xor ebx,0xdeadbeef
|
|||
|
|
EBX += EAX;
|
|||
|
|
generator = EBX;
|
|||
|
|
|
|||
|
|
EAX += EBX;
|
|||
|
|
EAX = EAX % ECX;
|
|||
|
|
|
|||
|
|
$pop ebx
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
inline fastcall randomize()
|
|||
|
|
// initialize random number generator - <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>
|
|||
|
|
{
|
|||
|
|
asm
|
|||
|
|
{
|
|||
|
|
mov eax,3
|
|||
|
|
int 0x40
|
|||
|
|
ror eax,16
|
|||
|
|
}
|
|||
|
|
generator = EAX;
|
|||
|
|
}
|