+struct taus258_state {
+ uint64_t s1, s2, s3, s4, s5;
+};
+
+struct frand_state {
+ unsigned int use64;
+ union {
+ struct taus88_state state32;
+ struct taus258_state state64;
+ };
+};
+
+struct frand64_state {
+ uint64_t s1, s2, s3, s4, s5;
+};
+
+static inline uint64_t rand_max(struct frand_state *state)
+{
+ if (state->use64)
+ return FRAND64_MAX;
+ else
+ return FRAND32_MAX;
+}
+
+static inline void __frand32_copy(struct taus88_state *dst,
+ struct taus88_state *src)
+{
+ dst->s1 = src->s1;
+ dst->s2 = src->s2;
+ dst->s3 = src->s3;
+}
+
+static inline void __frand64_copy(struct taus258_state *dst,
+ struct taus258_state *src)
+{
+ dst->s1 = src->s1;
+ dst->s2 = src->s2;
+ dst->s3 = src->s3;
+ dst->s4 = src->s4;
+ dst->s5 = src->s5;
+}
+
+static inline void frand_copy(struct frand_state *dst, struct frand_state *src)
+{
+ if (src->use64)
+ __frand64_copy(&dst->state64, &src->state64);
+ else
+ __frand32_copy(&dst->state32, &src->state32);
+
+ dst->use64 = src->use64;
+}
+
+static inline unsigned int __rand32(struct taus88_state *state)