diff options
| -rw-r--r-- | firmware/common/random.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/firmware/common/random.c b/firmware/common/random.c index 899ce4a..ebe60b0 100644 --- a/firmware/common/random.c +++ b/firmware/common/random.c @@ -56,11 +56,11 @@ #define mixBits(u, v) (hiBit(u)|loBits(v)) /* move highest bit of u to highest bit of v */ -static unsigned int state[N+1]; /* state vector + 1 to not violate ANSI C */ -static unsigned int *next; /* next random value is computed from here */ +static unsigned long state[N+1]; /* state vector + 1 to not violate ANSI C */ +static unsigned long *next; /* next random value is computed from here */ static int left = -1; /* can *next++ this many times before reloading */ -void srand(unsigned int seed) +void srand(unsigned long seed) { /* * We initialize state[0..(N-1)] via the generator @@ -108,16 +108,16 @@ void srand(unsigned int seed) * so-- that's why the only change I made is to restrict to odd seeds. */ - unsigned int x = (seed | 1U) & 0xFFFFFFFFU, *s = state; + unsigned long x = (seed | 1U) & 0xFFFFFFFFU, *s = state; int j; for(left=0, *s++=x, j=N; --j; *s++ = (x*=69069U) & 0xFFFFFFFFU); } -static int rand_reload(void) +static long rand_reload(void) { - unsigned int *p0=state, *p2=state+2, *pM=state+M, s0, s1; + unsigned long *p0=state, *p2=state+2, *pM=state+M, s0, s1; int j; if(left < -1) @@ -135,12 +135,12 @@ static int rand_reload(void) s1 ^= (s1 >> 11); s1 ^= (s1 << 7) & 0x9D2C5680U; s1 ^= (s1 << 15) & 0xEFC60000U; - return (int)s1 ^ (s1 >> 18); + return (long)s1 ^ (s1 >> 18); } -int rand(void) +long rand(void) { - unsigned int y; + unsigned long y; if(--left < 0) { y = rand_reload(); |