Help about Random Number Generater function

[Altera_Forum]

hello everyone, I just start a project that need use some kind of random number generator function, but I failed to convert into a VHDL entity, could anyone give some suggestion how should do that? 

 This is the funtion:   unsigned F8(unsigned x) {  x=(x*3+3)&0xFF;  x=x^(11);  return x; }   Thank U guys

[Altera_Forum]

--- Quote Start ---  I just start a project that need use some kind of random number generator function   --- Quote End ---    Read this:  http://www.ovro.caltech.edu/~dwh/correlator/pdf/lfsr_tutorial.pdf    --- Quote Start ---   but I failed to convert into a VHDL entity, could anyone give some suggestion how should do that?   This is the funtion:   unsigned F8(unsigned x) {  x=(x*3+3)&0xFF;  x=x^(11);  return x; }   Thank U guys  --- Quote End ---    That's not VHDL.  Cheers, Dave