TRandom.cpp File Reference

#include "ToshiPCH.h"
#include "TRandom.h"

Go to the source code of this file.

Namespaces
namespace	Toshi

Macros
#define	cut(a)
#define	ind(mm, x)
#define	rngstep(mix, a, b, mm, m, m2, r, x)
#define	mix(a, b, c, d, e, f, g, h)
#define	shuffle(a, b, mm, m, m2, r, x)

Macro Definition Documentation

cut

#define cut

(

a

)

Value:

( a ) /* A no-op */

Definition at line 7 of file TRandom.cpp.

ind

#define ind	(		mm,
			x )

Value:

( ( mm )[ ( x >> 2 ) & ( RANDSIZ - 1 ) ] )

Definition at line 10 of file TRandom.cpp.

mix

#define mix	(		a,
			b,
			c,
			d,
			e,
			f,
			g,
			h )

Value:

    {                                 \
        a ^= b << 11;                 \
        d += a;                       \
        b += c;                       \
        b ^= c >> 2;                  \
        e += b;                       \
        c += d;                       \
        c ^= d << 8;                  \
        f += c;                       \
        d += e;                       \
        d ^= e >> 16;                 \
        g += d;                       \
        e += f;                       \
        e ^= f << 10;                 \
        h += e;                       \
        f += g;                       \
        f ^= g >> 4;                  \
        a += f;                       \
        g += h;                       \
        g ^= h << 8;                  \
        b += g;                       \
        h += a;                       \
        h ^= a >> 9;                  \
        c += h;                       \
        a += b;                       \
    }

Definition at line 20 of file TRandom.cpp.

#define mix( a, b, c, d, e, f, g, h ) \
    {                                 \
        a ^= b << 11;                 \
        d += a;                       \
        b += c;                       \
        b ^= c >> 2;                  \
        e += b;                       \
        c += d;                       \
        c ^= d << 8;                  \
        f += c;                       \
        d += e;                       \
        d ^= e >> 16;                 \
        g += d;                       \
        e += f;                       \
        e ^= f << 10;                 \
        h += e;                       \
        f += g;                       \
        f ^= g >> 4;                  \
        a += f;                       \
        g += h;                       \
        g ^= h << 8;                  \
        b += g;                       \
        h += a;                       \
        h ^= a >> 9;                  \
        c += h;                       \
        a += b;                       \
    }

rngstep

#define rngstep	(		mix,
			a,
			b,
			mm,
			m,
			m2,
			r,
			x )

Value:

    {                                                       \
        x        = *m;                                      \
        a        = cut( ( a ^ ( mix ) ) + *( m2++ ) );      \
        *( m++ ) = y = cut( ind( mm, x ) + a + b );         \
        *( r++ ) = b = cut( ind( mm, y >> RANDSIZL ) + x ); \
    }

Definition at line 12 of file TRandom.cpp.

#define rngstep( mix, a, b, mm, m, m2, r, x )               \
    {                                                       \
        x        = *m;                                      \
        a        = cut( ( a ^ ( mix ) ) + *( m2++ ) );      \
        *( m++ ) = y = cut( ind( mm, x ) + a + b );         \
        *( r++ ) = b = cut( ind( mm, y >> RANDSIZL ) + x ); \
    }

shuffle

#define shuffle	(		a,
			b,
			mm,
			m,
			m2,
			r,
			x )

Value:

    {                                              \
        rngstep( a << 13, a, b, mm, m, m2, r, x ); \
        rngstep( a >> 6, a, b, mm, m, m2, r, x );  \
        rngstep( a << 2, a, b, mm, m, m2, r, x );  \
        rngstep( a >> 16, a, b, mm, m, m2, r, x ); \
    }

Definition at line 48 of file TRandom.cpp.

#define shuffle( a, b, mm, m, m2, r, x )           \
    {                                              \
        rngstep( a << 13, a, b, mm, m, m2, r, x ); \
        rngstep( a >> 6, a, b, mm, m, m2, r, x );  \
        rngstep( a << 2, a, b, mm, m, m2, r, x );  \
        rngstep( a >> 16, a, b, mm, m, m2, r, x ); \
    }