Email: Password: Remember Me | Create Account (Free)

Back to Subject List

Old thread has been locked -- no new posts accepted in this thread
???
09/10/07 10:40
Read: times


 		 #144276 - HOWTO generate a uniformly-distributed random nu
Hello all;

I want to generate a uniformly-distributed random number.
In C language I use (float) lrand48() which return number in 0..RAND_MAX range.

So what's its equivalent in sdcc compiler.

I found something at this page http://www.8052.com/forum/read.phtml?id=62945

but I still wonder why in prng_get_double function calls prng_get_ulong which is apparently not uniformly-distributed prng.

Am I wrong ?

Thanks

List of 25 messages in thread
TopicAuthorDate
HOWTO generate a uniformly-distributed random nu            01/01/70 00:00      
   how much code/data/idata/xdata space can you...            01/01/70 00:00      
      I can wait till evening            01/01/70 00:00      
      LFSR            01/01/70 00:00      
         OK but            01/01/70 00:00      
            there is no such thing            01/01/70 00:00      
               event triggered Timer reading            01/01/70 00:00      
                  no, well            01/01/70 00:00      
            LFSRs generally suffer from the "bad seed" problem            01/01/70 00:00      
               Maximal-Length LFSR?            01/01/70 00:00      
                  uniformity is not the only requirement on a pRNG..            01/01/70 00:00      
   most rng's            01/01/70 00:00      
      hummm            01/01/70 00:00      
         pseudorandom is NOT random            01/01/70 00:00      
            A Dilbert            01/01/70 00:00      
   Easy way to have it ???            01/01/70 00:00      
      block cipher, in chaining mode...            01/01/70 00:00      
      on uniformity of pseudo- or real-random            01/01/70 00:00      
         what's xtea prng RANGE ?            01/01/70 00:00      
            its not a dedicated pRNG algorithm....            01/01/70 00:00      
               random float ??            01/01/70 00:00      
                  tell us what is the application            01/01/70 00:00      
                     The application is...            01/01/70 00:00      
                        take any 32 bits...            01/01/70 00:00      
                           OK            01/01/70 00:00      

Back to Subject List