Rev 5582 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
5598 | pavelyakov | 1 | #ifndef INCLUDE_RANDOM_H |
2 | #define INCLUDE_RANDOM_H |
||
3067 | leency | 3 | |
5598 | pavelyakov | 4 | #ifndef INCLUDE_KOLIBRI_H |
5 | #include "../lib/kolibri.h" |
||
6 | #endif |
||
3067 | leency | 7 | |
5576 | pavelyakov | 8 | #define MASK_RAND 123456789 |
9 | #define IQ_RAND 12773 |
||
10 | #define IA_RAND 16807 |
||
11 | #define IR_RAND 2836 |
||
12 | #define IM_RAND 2147483647 |
||
13 | #define AM_RAND (1./2147483647) |
||
3067 | leency | 14 | |
15 | inline fastcall int random( ECX) |
||
16 | // get pseudo-random number - получить псевдослучайное число |
||
17 | { |
||
18 | $push ebx |
||
19 | |||
20 | $rdtsc // eax & edx |
||
21 | $xor eax,edx |
||
22 | $not eax |
||
23 | |||
5575 | pavelyakov | 24 | EBX = __generator; |
3067 | leency | 25 | $ror ebx,3 |
26 | $xor ebx,0xdeadbeef |
||
27 | EBX += EAX; |
||
5575 | pavelyakov | 28 | __generator = EBX; |
3067 | leency | 29 | |
30 | EAX += EBX; |
||
31 | EAX = EAX % ECX; |
||
32 | |||
33 | $pop ebx |
||
34 | } |
||
35 | |||
5582 | pavelyakov | 36 | inline long unirand0(void) |
5576 | pavelyakov | 37 | { |
38 | long k,ans,tmp,save; |
||
39 | save = __generator; |
||
40 | __generator^=MASK_RAND; /* avoid __generator==0 */ |
||
41 | k=__generator/IQ_RAND; |
||
42 | tmp=__generator-k*IQ_RAND; |
||
43 | __generator*=IA_RAND*tmp; |
||
44 | __generator-=IR_RAND*k; |
||
45 | if(__generator<0) __generator+=IM_RAND; |
||
46 | if(save == __generator) return unirand0(); |
||
47 | ans=__generator; |
||
48 | __generator^=MASK_RAND; /* restore unmasked dummy */ |
||
49 | return ans; |
||
50 | } |
||
51 | |||
52 | :long RAND_A,RAND_C,RAND_TMP; |
||
5582 | pavelyakov | 53 | inline long rand(signed long x1,x2) |
5576 | pavelyakov | 54 | { |
55 | long tmp,xx; |
||
56 | RAND_A = __generator; |
||
57 | __generator = RAND_A*__generator+RAND_C; |
||
58 | RAND_C = __generator^RAND_A; |
||
59 | RAND_C>>=1; |
||
60 | RAND_A<<=1; |
||
61 | __generator^=RAND_A; |
||
62 | xx=x2; |
||
63 | if(x1<0)xx+=-x1; |
||
64 | tmp = __generator%xx; |
||
65 | if(tmp<0)tmp=-tmp; |
||
66 | tmp+=x1; |
||
67 | return tmp; |
||
68 | } |
||
69 | |||
3067 | leency | 70 | inline fastcall randomize() |
5575 | pavelyakov | 71 | // initialize random number __generator - инициализировать генератор случайных чисел |
3067 | leency | 72 | { |
73 | asm |
||
74 | { |
||
75 | mov eax,3 |
||
76 | int 0x40 |
||
77 | ror eax,16 |
||
78 | } |
||
5576 | pavelyakov | 79 | //if(EAX == __generator)return randomize(); |
5575 | pavelyakov | 80 | __generator = EAX; |
81 | } |
||
82 | |||
5598 | pavelyakov | 83 | #endif0)tmp=-tmp; |