"and a" or "or a" in an assembly keypress routine.

[Singaja]

Try the one I wrote (based on others' work) , it's really good.
From: http://www.cpcwiki.eu/index.php/Programming:Random_Number_Generator & https://www.cpcwiki.eu/forum/programming/testing-those-assembly-8bit-random-number-generators/msg114333/#msg114333



   

Code Select Expand


  ;-----> Generate a random number
      ; ouput a=answer 0<=a<=255
      ld      hl,(seed_ion)
      ld      a,r
      ld      d,a
      ld      e,a
      add     hl,de
      xor     l
      add     a
      xor     h
      ld      l,a
      ld      (seed_ion),hl
      ret
   seed_ion: .dw 0x0

[AMSDOS]

Try the one I wrote (based on others' work) , it's really good.

I'll have a look at it if the examples in the following thread seem to predictable:

https://www.cpcwiki.eu/forum/programming/pseudo-random-number-generation/


Cheers.