mirror of
https://github.com/KolibriOS/kolibrios.git
synced 2024-12-05 23:01:57 +03:00
90e6abd011
git-svn-id: svn://kolibrios.org@5676 a494cfbc-eb01-0410-851d-a64ba20cac60
84 lines
1.6 KiB
C
84 lines
1.6 KiB
C
#ifndef INCLUDE_RANDOM_H
|
|
#define INCLUDE_RANDOM_H
|
|
#print "[include <random.h>]\n"
|
|
|
|
#ifndef INCLUDE_KOLIBRI_H
|
|
#include "../lib/kolibri.h"
|
|
#endif
|
|
|
|
#define MASK_RAND 123456789
|
|
#define IQ_RAND 12773
|
|
#define IA_RAND 16807
|
|
#define IR_RAND 2836
|
|
#define IM_RAND 2147483647
|
|
#define AM_RAND (1./2147483647)
|
|
|
|
inline fastcall int random( ECX)
|
|
// get pseudo-random number - ïîëó÷èòü ïñåâäîñëó÷àéíîå ÷èñëî
|
|
{
|
|
$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 long unirand0(void)
|
|
{
|
|
long k,ans,tmp,save;
|
|
save = __generator;
|
|
__generator^=MASK_RAND; /* avoid __generator==0 */
|
|
k=__generator/IQ_RAND;
|
|
tmp=__generator-k*IQ_RAND;
|
|
__generator*=IA_RAND*tmp;
|
|
__generator-=IR_RAND*k;
|
|
if(__generator<0) __generator+=IM_RAND;
|
|
if(save == __generator) return unirand0();
|
|
ans=__generator;
|
|
__generator^=MASK_RAND; /* restore unmasked dummy */
|
|
return ans;
|
|
}
|
|
|
|
:long RAND_A,RAND_C,RAND_TMP;
|
|
inline long rand(signed long x1,x2)
|
|
{
|
|
long tmp,xx;
|
|
RAND_A = __generator;
|
|
__generator = RAND_A*__generator+RAND_C;
|
|
RAND_C = __generator^RAND_A;
|
|
RAND_C>>=1;
|
|
RAND_A<<=1;
|
|
__generator^=RAND_A;
|
|
xx=x2;
|
|
if(x1<0)xx+=-x1;
|
|
tmp = __generator%xx;
|
|
if(tmp<0)tmp=-tmp;
|
|
tmp+=x1;
|
|
return tmp;
|
|
}
|
|
|
|
inline fastcall randomize()
|
|
// initialize random number __generator - èíèöèàëèçèðîâàòü ãåíåðàòîð ñëó÷àéíûõ ÷èñåë
|
|
{
|
|
asm
|
|
{
|
|
mov eax,3
|
|
int 0x40
|
|
ror eax,16
|
|
}
|
|
//if(EAX == __generator)return randomize();
|
|
__generator = EAX;
|
|
}
|
|
|
|
#endif |