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authorJohn Glover <glover.john@gmail.com>2011-06-24 18:17:23 +0100
committerJohn Glover <glover.john@gmail.com>2011-06-24 18:17:23 +0100
commit416bd737074a287ea47106c73ea6bcfde40a75a8 (patch)
tree74562303d4f4f2f2e010f7e13cba41dc4852b50c /sms/SFMT.c
parentd26519464dcbf8c3682348167c29454961facefe (diff)
downloadsimpl-416bd737074a287ea47106c73ea6bcfde40a75a8.tar.gz
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Change to using distutils.
Currently only builds the simplsndobj module
Diffstat (limited to 'sms/SFMT.c')
-rw-r--r--sms/SFMT.c621
1 files changed, 0 insertions, 621 deletions
diff --git a/sms/SFMT.c b/sms/SFMT.c
deleted file mode 100644
index 7b84db7..0000000
--- a/sms/SFMT.c
+++ /dev/null
@@ -1,621 +0,0 @@
-/*
- * @file SFMT.c
- * @brief SIMD oriented Fast Mersenne Twister(SFMT)
- *
- * @author Mutsuo Saito (Hiroshima University)
- * @author Makoto Matsumoto (Hiroshima University)
- *
- * Copyright (C) 2006,2007 Mutsuo Saito, Makoto Matsumoto and Hiroshima
- * University. All rights reserved.
- *
- * The new BSD License is applied to this software, see LICENSE.txt
- */
-
-#include <string.h>
-#include <assert.h>
-#include "SFMT.h"
-#include "SFMT/SFMT-params.h"
-
-#if defined(__BIG_ENDIAN__) && !defined(__amd64) && !defined(BIG_ENDIAN64)
-#define BIG_ENDIAN64 1
-#endif
-#if defined(HAVE_ALTIVEC) && !defined(BIG_ENDIAN64)
-#define BIG_ENDIAN64 1
-#endif
-#if defined(ONLY64) && !defined(BIG_ENDIAN64)
- #if defined(__GNUC__)
- #error "-DONLY64 must be specified with -DBIG_ENDIAN64"
- #endif
-#undef ONLY64
-#endif
-/*------------------------------------------------------
- 128-bit SIMD data type for Altivec, SSE2 or standard C
- ------------------------------------------------------*/
-#if defined(HAVE_ALTIVEC)
- #if !defined(__APPLE__)
- #include <altivec.h>
- #endif
-/** 128-bit data structure */
-union W128_T {
- vector unsigned int s;
- uint32_t u[4];
-};
-/** 128-bit data type */
-typedef union W128_T w128_t;
-
-#elif defined(HAVE_SSE2)
- #include <emmintrin.h>
-
-/** 128-bit data structure */
-union W128_T {
- __m128i si;
- uint32_t u[4];
-};
-/** 128-bit data type */
-typedef union W128_T w128_t;
-
-#else
-
-/** 128-bit data structure */
-struct W128_T {
- uint32_t u[4];
-};
-/** 128-bit data type */
-typedef struct W128_T w128_t;
-
-#endif
-
-/*--------------------------------------
- FILE GLOBAL VARIABLES
- internal state, index counter and flag
- --------------------------------------*/
-/** the 128-bit internal state array */
-static w128_t sfmt[N];
-/** the 32bit integer pointer to the 128-bit internal state array */
-static uint32_t *psfmt32 = &sfmt[0].u[0];
-#if !defined(BIG_ENDIAN64) || defined(ONLY64)
-/** the 64bit integer pointer to the 128-bit internal state array */
-static uint64_t *psfmt64 = (uint64_t *)&sfmt[0].u[0];
-#endif
-/** index counter to the 32-bit internal state array */
-static int idx;
-/** a flag: it is 0 if and only if the internal state is not yet
- * initialized. */
-static int initialized = 0;
-/** a parity check vector which certificate the period of 2^{MEXP} */
-static uint32_t parity[4] = {PARITY1, PARITY2, PARITY3, PARITY4};
-
-/*----------------
- STATIC FUNCTIONS
- ----------------*/
-inline static int idxof(int i);
-inline static void rshift128(w128_t *out, w128_t const *in, int shift);
-inline static void lshift128(w128_t *out, w128_t const *in, int shift);
-inline static void gen_rand_all(void);
-inline static void gen_rand_array(w128_t *array, int size);
-inline static uint32_t func1(uint32_t x);
-inline static uint32_t func2(uint32_t x);
-static void period_certification(void);
-#if defined(BIG_ENDIAN64) && !defined(ONLY64)
-inline static void swap(w128_t *array, int size);
-#endif
-
-#if defined(HAVE_ALTIVEC)
- #include "SFMT-alti.h"
-#elif defined(HAVE_SSE2)
- #include "SFMT-sse2.h"
-#endif
-
-/**
- * This function simulate a 64-bit index of LITTLE ENDIAN
- * in BIG ENDIAN machine.
- */
-#ifdef ONLY64
-inline static int idxof(int i) {
- return i ^ 1;
-}
-#else
-inline static int idxof(int i) {
- return i;
-}
-#endif
-/**
- * This function simulates SIMD 128-bit right shift by the standard C.
- * The 128-bit integer given in in is shifted by (shift * 8) bits.
- * This function simulates the LITTLE ENDIAN SIMD.
- * @param out the output of this function
- * @param in the 128-bit data to be shifted
- * @param shift the shift value
- */
-#ifdef ONLY64
-inline static void rshift128(w128_t *out, w128_t const *in, int shift) {
- uint64_t th, tl, oh, ol;
-
- th = ((uint64_t)in->u[2] << 32) | ((uint64_t)in->u[3]);
- tl = ((uint64_t)in->u[0] << 32) | ((uint64_t)in->u[1]);
-
- oh = th >> (shift * 8);
- ol = tl >> (shift * 8);
- ol |= th << (64 - shift * 8);
- out->u[0] = (uint32_t)(ol >> 32);
- out->u[1] = (uint32_t)ol;
- out->u[2] = (uint32_t)(oh >> 32);
- out->u[3] = (uint32_t)oh;
-}
-#else
-inline static void rshift128(w128_t *out, w128_t const *in, int shift) {
- uint64_t th, tl, oh, ol;
-
- th = ((uint64_t)in->u[3] << 32) | ((uint64_t)in->u[2]);
- tl = ((uint64_t)in->u[1] << 32) | ((uint64_t)in->u[0]);
-
- oh = th >> (shift * 8);
- ol = tl >> (shift * 8);
- ol |= th << (64 - shift * 8);
- out->u[1] = (uint32_t)(ol >> 32);
- out->u[0] = (uint32_t)ol;
- out->u[3] = (uint32_t)(oh >> 32);
- out->u[2] = (uint32_t)oh;
-}
-#endif
-/**
- * This function simulates SIMD 128-bit left shift by the standard C.
- * The 128-bit integer given in in is shifted by (shift * 8) bits.
- * This function simulates the LITTLE ENDIAN SIMD.
- * @param out the output of this function
- * @param in the 128-bit data to be shifted
- * @param shift the shift value
- */
-#ifdef ONLY64
-inline static void lshift128(w128_t *out, w128_t const *in, int shift) {
- uint64_t th, tl, oh, ol;
-
- th = ((uint64_t)in->u[2] << 32) | ((uint64_t)in->u[3]);
- tl = ((uint64_t)in->u[0] << 32) | ((uint64_t)in->u[1]);
-
- oh = th << (shift * 8);
- ol = tl << (shift * 8);
- oh |= tl >> (64 - shift * 8);
- out->u[0] = (uint32_t)(ol >> 32);
- out->u[1] = (uint32_t)ol;
- out->u[2] = (uint32_t)(oh >> 32);
- out->u[3] = (uint32_t)oh;
-}
-#else
-inline static void lshift128(w128_t *out, w128_t const *in, int shift) {
- uint64_t th, tl, oh, ol;
-
- th = ((uint64_t)in->u[3] << 32) | ((uint64_t)in->u[2]);
- tl = ((uint64_t)in->u[1] << 32) | ((uint64_t)in->u[0]);
-
- oh = th << (shift * 8);
- ol = tl << (shift * 8);
- oh |= tl >> (64 - shift * 8);
- out->u[1] = (uint32_t)(ol >> 32);
- out->u[0] = (uint32_t)ol;
- out->u[3] = (uint32_t)(oh >> 32);
- out->u[2] = (uint32_t)oh;
-}
-#endif
-
-/**
- * This function represents the recursion formula.
- * @param r output
- * @param a a 128-bit part of the internal state array
- * @param b a 128-bit part of the internal state array
- * @param c a 128-bit part of the internal state array
- * @param d a 128-bit part of the internal state array
- */
-#if (!defined(HAVE_ALTIVEC)) && (!defined(HAVE_SSE2))
-#ifdef ONLY64
-inline static void do_recursion(w128_t *r, w128_t *a, w128_t *b, w128_t *c,
- w128_t *d) {
- w128_t x;
- w128_t y;
-
- lshift128(&x, a, SL2);
- rshift128(&y, c, SR2);
- r->u[0] = a->u[0] ^ x.u[0] ^ ((b->u[0] >> SR1) & MSK2) ^ y.u[0]
- ^ (d->u[0] << SL1);
- r->u[1] = a->u[1] ^ x.u[1] ^ ((b->u[1] >> SR1) & MSK1) ^ y.u[1]
- ^ (d->u[1] << SL1);
- r->u[2] = a->u[2] ^ x.u[2] ^ ((b->u[2] >> SR1) & MSK4) ^ y.u[2]
- ^ (d->u[2] << SL1);
- r->u[3] = a->u[3] ^ x.u[3] ^ ((b->u[3] >> SR1) & MSK3) ^ y.u[3]
- ^ (d->u[3] << SL1);
-}
-#else
-inline static void do_recursion(w128_t *r, w128_t *a, w128_t *b, w128_t *c,
- w128_t *d) {
- w128_t x;
- w128_t y;
-
- lshift128(&x, a, SL2);
- rshift128(&y, c, SR2);
- r->u[0] = a->u[0] ^ x.u[0] ^ ((b->u[0] >> SR1) & MSK1) ^ y.u[0]
- ^ (d->u[0] << SL1);
- r->u[1] = a->u[1] ^ x.u[1] ^ ((b->u[1] >> SR1) & MSK2) ^ y.u[1]
- ^ (d->u[1] << SL1);
- r->u[2] = a->u[2] ^ x.u[2] ^ ((b->u[2] >> SR1) & MSK3) ^ y.u[2]
- ^ (d->u[2] << SL1);
- r->u[3] = a->u[3] ^ x.u[3] ^ ((b->u[3] >> SR1) & MSK4) ^ y.u[3]
- ^ (d->u[3] << SL1);
-}
-#endif
-#endif
-
-#if (!defined(HAVE_ALTIVEC)) && (!defined(HAVE_SSE2))
-/**
- * This function fills the internal state array with pseudorandom
- * integers.
- */
-inline static void gen_rand_all(void) {
- int i;
- w128_t *r1, *r2;
-
- r1 = &sfmt[N - 2];
- r2 = &sfmt[N - 1];
- for (i = 0; i < N - POS1; i++) {
- do_recursion(&sfmt[i], &sfmt[i], &sfmt[i + POS1], r1, r2);
- r1 = r2;
- r2 = &sfmt[i];
- }
- for (; i < N; i++) {
- do_recursion(&sfmt[i], &sfmt[i], &sfmt[i + POS1 - N], r1, r2);
- r1 = r2;
- r2 = &sfmt[i];
- }
-}
-
-/**
- * This function fills the user-specified array with pseudorandom
- * integers.
- *
- * @param array an 128-bit array to be filled by pseudorandom numbers.
- * @param size number of 128-bit pseudorandom numbers to be generated.
- */
-inline static void gen_rand_array(w128_t *array, int size) {
- int i, j;
- w128_t *r1, *r2;
-
- r1 = &sfmt[N - 2];
- r2 = &sfmt[N - 1];
- for (i = 0; i < N - POS1; i++) {
- do_recursion(&array[i], &sfmt[i], &sfmt[i + POS1], r1, r2);
- r1 = r2;
- r2 = &array[i];
- }
- for (; i < N; i++) {
- do_recursion(&array[i], &sfmt[i], &array[i + POS1 - N], r1, r2);
- r1 = r2;
- r2 = &array[i];
- }
- for (; i < size - N; i++) {
- do_recursion(&array[i], &array[i - N], &array[i + POS1 - N], r1, r2);
- r1 = r2;
- r2 = &array[i];
- }
- for (j = 0; j < 2 * N - size; j++) {
- sfmt[j] = array[j + size - N];
- }
- for (; i < size; i++, j++) {
- do_recursion(&array[i], &array[i - N], &array[i + POS1 - N], r1, r2);
- r1 = r2;
- r2 = &array[i];
- sfmt[j] = array[i];
- }
-}
-#endif
-
-#if defined(BIG_ENDIAN64) && !defined(ONLY64) && !defined(HAVE_ALTIVEC)
-inline static void swap(w128_t *array, int size) {
- int i;
- uint32_t x, y;
-
- for (i = 0; i < size; i++) {
- x = array[i].u[0];
- y = array[i].u[2];
- array[i].u[0] = array[i].u[1];
- array[i].u[2] = array[i].u[3];
- array[i].u[1] = x;
- array[i].u[3] = y;
- }
-}
-#endif
-/**
- * This function represents a function used in the initialization
- * by init_by_array
- * @param x 32-bit integer
- * @return 32-bit integer
- */
-static uint32_t func1(uint32_t x) {
- return (x ^ (x >> 27)) * (uint32_t)1664525UL;
-}
-
-/**
- * This function represents a function used in the initialization
- * by init_by_array
- * @param x 32-bit integer
- * @return 32-bit integer
- */
-static uint32_t func2(uint32_t x) {
- return (x ^ (x >> 27)) * (uint32_t)1566083941UL;
-}
-
-/**
- * This function certificate the period of 2^{MEXP}
- */
-static void period_certification(void) {
- int inner = 0;
- int i, j;
- uint32_t work;
-
- for (i = 0; i < 4; i++)
- inner ^= psfmt32[idxof(i)] & parity[i];
- for (i = 16; i > 0; i >>= 1)
- inner ^= inner >> i;
- inner &= 1;
- /* check OK */
- if (inner == 1) {
- return;
- }
- /* check NG, and modification */
- for (i = 0; i < 4; i++) {
- work = 1;
- for (j = 0; j < 32; j++) {
- if ((work & parity[i]) != 0) {
- psfmt32[idxof(i)] ^= work;
- return;
- }
- work = work << 1;
- }
- }
-}
-
-/*----------------
- PUBLIC FUNCTIONS
- ----------------*/
-/**
- * This function returns the identification string.
- * The string shows the word size, the Mersenne exponent,
- * and all parameters of this generator.
- */
-const char *get_idstring(void) {
- return IDSTR;
-}
-
-/**
- * This function returns the minimum size of array used for \b
- * fill_array32() function.
- * @return minimum size of array used for fill_array32() function.
- */
-int get_min_array_size32(void) {
- return N32;
-}
-
-/**
- * This function returns the minimum size of array used for \b
- * fill_array64() function.
- * @return minimum size of array used for fill_array64() function.
- */
-int get_min_array_size64(void) {
- return N64;
-}
-
-#ifndef ONLY64
-/**
- * This function generates and returns 32-bit pseudorandom number.
- * init_gen_rand or init_by_array must be called before this function.
- * @return 32-bit pseudorandom number
- */
-uint32_t gen_rand32(void) {
- uint32_t r;
-
- assert(initialized);
- if (idx >= N32) {
- gen_rand_all();
- idx = 0;
- }
- r = psfmt32[idx++];
- return r;
-}
-#endif
-/**
- * This function generates and returns 64-bit pseudorandom number.
- * init_gen_rand or init_by_array must be called before this function.
- * The function gen_rand64 should not be called after gen_rand32,
- * unless an initialization is again executed.
- * @return 64-bit pseudorandom number
- */
-uint64_t gen_rand64(void) {
-#if defined(BIG_ENDIAN64) && !defined(ONLY64)
- uint32_t r1, r2;
-#else
- uint64_t r;
-#endif
-
- assert(initialized);
- assert(idx % 2 == 0);
-
- if (idx >= N32) {
- gen_rand_all();
- idx = 0;
- }
-#if defined(BIG_ENDIAN64) && !defined(ONLY64)
- r1 = psfmt32[idx];
- r2 = psfmt32[idx + 1];
- idx += 2;
- return ((uint64_t)r2 << 32) | r1;
-#else
- r = psfmt64[idx / 2];
- idx += 2;
- return r;
-#endif
-}
-
-#ifndef ONLY64
-/**
- * This function generates pseudorandom 32-bit integers in the
- * specified array[] by one call. The number of pseudorandom integers
- * is specified by the argument size, which must be at least 624 and a
- * multiple of four. The generation by this function is much faster
- * than the following gen_rand function.
- *
- * For initialization, init_gen_rand or init_by_array must be called
- * before the first call of this function. This function can not be
- * used after calling gen_rand function, without initialization.
- *
- * @param array an array where pseudorandom 32-bit integers are filled
- * by this function. The pointer to the array must be \b "aligned"
- * (namely, must be a multiple of 16) in the SIMD version, since it
- * refers to the address of a 128-bit integer. In the standard C
- * version, the pointer is arbitrary.
- *
- * @param size the number of 32-bit pseudorandom integers to be
- * generated. size must be a multiple of 4, and greater than or equal
- * to (MEXP / 128 + 1) * 4.
- *
- * @note \b memalign or \b posix_memalign is available to get aligned
- * memory. Mac OSX doesn't have these functions, but \b malloc of OSX
- * returns the pointer to the aligned memory block.
- */
-void fill_array32(uint32_t *array, int size) {
- assert(initialized);
- assert(idx == N32);
- assert(size % 4 == 0);
- assert(size >= N32);
-
- gen_rand_array((w128_t *)array, size / 4);
- idx = N32;
-}
-#endif
-
-/**
- * This function generates pseudorandom 64-bit integers in the
- * specified array[] by one call. The number of pseudorandom integers
- * is specified by the argument size, which must be at least 312 and a
- * multiple of two. The generation by this function is much faster
- * than the following gen_rand function.
- *
- * For initialization, init_gen_rand or init_by_array must be called
- * before the first call of this function. This function can not be
- * used after calling gen_rand function, without initialization.
- *
- * @param array an array where pseudorandom 64-bit integers are filled
- * by this function. The pointer to the array must be "aligned"
- * (namely, must be a multiple of 16) in the SIMD version, since it
- * refers to the address of a 128-bit integer. In the standard C
- * version, the pointer is arbitrary.
- *
- * @param size the number of 64-bit pseudorandom integers to be
- * generated. size must be a multiple of 2, and greater than or equal
- * to (MEXP / 128 + 1) * 2
- *
- * @note \b memalign or \b posix_memalign is available to get aligned
- * memory. Mac OSX doesn't have these functions, but \b malloc of OSX
- * returns the pointer to the aligned memory block.
- */
-void fill_array64(uint64_t *array, int size) {
- assert(initialized);
- assert(idx == N32);
- assert(size % 2 == 0);
- assert(size >= N64);
-
- gen_rand_array((w128_t *)array, size / 2);
- idx = N32;
-
-#if defined(BIG_ENDIAN64) && !defined(ONLY64)
- swap((w128_t *)array, size /2);
-#endif
-}
-
-/**
- * This function initializes the internal state array with a 32-bit
- * integer seed.
- *
- * @param seed a 32-bit integer used as the seed.
- */
-void init_gen_rand(uint32_t seed) {
- int i;
-
- psfmt32[idxof(0)] = seed;
- for (i = 1; i < N32; i++) {
- psfmt32[idxof(i)] = 1812433253UL * (psfmt32[idxof(i - 1)]
- ^ (psfmt32[idxof(i - 1)] >> 30))
- + i;
- }
- idx = N32;
- period_certification();
- initialized = 1;
-}
-
-/**
- * This function initializes the internal state array,
- * with an array of 32-bit integers used as the seeds
- * @param init_key the array of 32-bit integers, used as a seed.
- * @param key_length the length of init_key.
- */
-void init_by_array(uint32_t *init_key, int key_length) {
- int i, j, count;
- uint32_t r;
- int lag;
- int mid;
- int size = N * 4;
-
- if (size >= 623) {
- lag = 11;
- } else if (size >= 68) {
- lag = 7;
- } else if (size >= 39) {
- lag = 5;
- } else {
- lag = 3;
- }
- mid = (size - lag) / 2;
-
- memset(sfmt, 0x8b, sizeof(sfmt));
- if (key_length + 1 > N32) {
- count = key_length + 1;
- } else {
- count = N32;
- }
- r = func1(psfmt32[idxof(0)] ^ psfmt32[idxof(mid)]
- ^ psfmt32[idxof(N32 - 1)]);
- psfmt32[idxof(mid)] += r;
- r += key_length;
- psfmt32[idxof(mid + lag)] += r;
- psfmt32[idxof(0)] = r;
-
- count--;
- for (i = 1, j = 0; (j < count) && (j < key_length); j++) {
- r = func1(psfmt32[idxof(i)] ^ psfmt32[idxof((i + mid) % N32)]
- ^ psfmt32[idxof((i + N32 - 1) % N32)]);
- psfmt32[idxof((i + mid) % N32)] += r;
- r += init_key[j] + i;
- psfmt32[idxof((i + mid + lag) % N32)] += r;
- psfmt32[idxof(i)] = r;
- i = (i + 1) % N32;
- }
- for (; j < count; j++) {
- r = func1(psfmt32[idxof(i)] ^ psfmt32[idxof((i + mid) % N32)]
- ^ psfmt32[idxof((i + N32 - 1) % N32)]);
- psfmt32[idxof((i + mid) % N32)] += r;
- r += i;
- psfmt32[idxof((i + mid + lag) % N32)] += r;
- psfmt32[idxof(i)] = r;
- i = (i + 1) % N32;
- }
- for (j = 0; j < N32; j++) {
- r = func2(psfmt32[idxof(i)] + psfmt32[idxof((i + mid) % N32)]
- + psfmt32[idxof((i + N32 - 1) % N32)]);
- psfmt32[idxof((i + mid) % N32)] ^= r;
- r -= i;
- psfmt32[idxof((i + mid + lag) % N32)] ^= r;
- psfmt32[idxof(i)] = r;
- i = (i + 1) % N32;
- }
-
- idx = N32;
- period_certification();
- initialized = 1;
-}