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GitHub Repository: hrydgard/ppsspp
 Path: blob/master/ext/sfmt19937/SFMT-params.h
Views: 1401
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#pragma once

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#ifndef SFMT_PARAMS_H

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#define SFMT_PARAMS_H

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#if !defined(SFMT_MEXP)

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#if defined(__GNUC__) && !defined(__ICC)

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  #warning "SFMT_MEXP is not defined. I assume MEXP is 19937."

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#endif

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  #define SFMT_MEXP 19937

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#endif

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/*-----------------

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  BASIC DEFINITIONS

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  -----------------*/

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/** Mersenne Exponent. The period of the sequence

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 *  is a multiple of 2^MEXP-1.

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 * #define SFMT_MEXP 19937 */

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/** SFMT generator has an internal state array of 128-bit integers,

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 * and N is its size. */

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#define SFMT_N (SFMT_MEXP / 128 + 1)

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/** N32 is the size of internal state array when regarded as an array

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 * of 32-bit integers.*/

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#define SFMT_N32 (SFMT_N * 4)

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/** N64 is the size of internal state array when regarded as an array

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 * of 64-bit integers.*/

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#define SFMT_N64 (SFMT_N * 2)

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/*----------------------

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  the parameters of SFMT

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  following definitions are in paramsXXXX.h file.

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  ----------------------*/

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/** the pick up position of the array.

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#define SFMT_POS1 122

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*/

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/** the parameter of shift left as four 32-bit registers.

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#define SFMT_SL1 18

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 */

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/** the parameter of shift left as one 128-bit register.

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 * The 128-bit integer is shifted by (SFMT_SL2 * 8) bits.

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#define SFMT_SL2 1

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*/

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/** the parameter of shift right as four 32-bit registers.

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#define SFMT_SR1 11

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*/

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/** the parameter of shift right as one 128-bit register.

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 * The 128-bit integer is shifted by (SFMT_SL2 * 8) bits.

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#define SFMT_SR21 1

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*/

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/** A bitmask, used in the recursion.  These parameters are introduced

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 * to break symmetry of SIMD.

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#define SFMT_MSK1 0xdfffffefU

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#define SFMT_MSK2 0xddfecb7fU

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#define SFMT_MSK3 0xbffaffffU

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#define SFMT_MSK4 0xbffffff6U

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*/

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/** These definitions are part of a 128-bit period certification vector.

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#define SFMT_PARITY1	0x00000001U

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#define SFMT_PARITY2	0x00000000U

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#define SFMT_PARITY3	0x00000000U

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#define SFMT_PARITY4	0xc98e126aU

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*/

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#if SFMT_MEXP == 607

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  #include "SFMT-params607.h"

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#elif SFMT_MEXP == 1279

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  #include "SFMT-params1279.h"

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#elif SFMT_MEXP == 2281

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  #include "SFMT-params2281.h"

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#elif SFMT_MEXP == 4253

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  #include "SFMT-params4253.h"

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#elif SFMT_MEXP == 11213

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  #include "SFMT-params11213.h"

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#elif SFMT_MEXP == 19937

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  #include "SFMT-params19937.h"

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#elif SFMT_MEXP == 44497

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  #include "SFMT-params44497.h"

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#elif SFMT_MEXP == 86243

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  #include "SFMT-params86243.h"

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#elif SFMT_MEXP == 132049

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  #include "SFMT-params132049.h"

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#elif SFMT_MEXP == 216091

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  #include "SFMT-params216091.h"

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#else

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#if defined(__GNUC__) && !defined(__ICC)

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  #error "SFMT_MEXP is not valid."

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  #undef SFMT_MEXP

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#else

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  #undef SFMT_MEXP

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#endif

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#endif

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#endif /* SFMT_PARAMS_H */

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