isaac64.c File Reference

#include <../../nrnconf.h>
#include "isaac64.h"

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Defines
#define	ind(mm, x)   (*(ub8 *)((ub1 *)(mm) + ((x) & ((RANDSIZ-1)<<3))))
#define	rngstep(mix, a, b, mm, m, m2, r, x)
#define	mix(a, b, c, d, e, f, g, h)
Functions
void	isaac64_generate (struct isaac64_state *rng)
void	isaac64_init (struct isaac64_state *rng, ub4 seed)

---

Define Documentation

#define ind	(	mm,
		x		)	(*(ub8 *)((ub1 *)(mm) + ((x) & ((RANDSIZ-1)<<3))))

Referenced by assign().

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

Value:

{ \
   a-=e; f^=h>>9;  h+=a; \
   b-=f; g^=a<<9;  a+=b; \
   c-=g; h^=b>>23; b+=c; \
   d-=h; a^=c<<15; c+=d; \
   e-=a; b^=d>>14; d+=e; \
   f-=b; c^=e<<20; e+=f; \
   g-=c; d^=f>>17; f+=g; \
   h-=d; e^=g<<14; g+=h; \
}

Referenced by isaac64_init().

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

Value:

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

Referenced by isaac64_generate().

---

Function Documentation

void isaac64_generate

(

struct isaac64_state *

rng

)

References a, isaac64_state::aa, b, isaac64_state::bb, isaac64_state::cc, m, isaac64_state::mm, isaac64_state::randrsl, RANDSIZ, rngstep, x, and y.

Referenced by isaac64_init().

void isaac64_init	(	struct isaac64_state *	rng,
		ub4	seed
	)

References a, isaac64_state::aa, b, isaac64_state::bb, isaac64_state::cc, d, e, g, h, i, isaac64_generate(), m, mix, isaac64_state::mm, isaac64_state::randcnt, RANDMAX, isaac64_state::randrsl, and RANDSIZ.

Referenced by nrnisaac_init().

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