openpower/isa/av.mdwn

   1 <!-- DRAFT Instructions for PowerISA Version 3.0 B Book 1 -->
   2
   3 # Fixed Point Signed Max
   4
   5 X-Form
   6
   7 * maxs  RT,RA,RB (Rc=0)
   8 * maxs. RT,RA,RB (Rc=1)
   9
  10 Pseudo-code:
  11
  12     if   (RA) > (RB) then RT <- (RA)
  13     else                  RT <- (RB)
  14
  15 Special Registers Altered:
  16
  17     CR0                     (if Rc=1)
  18
  19 # Fixed Point Unsighed Max
  20
  21 X-Form
  22
  23 * maxu  RT,RA,RB (Rc=0)
  24 * maxu. RT,RA,RB (Rc=1)
  25
  26 Pseudo-code:
  27
  28     if   (RA) >u (RB) then RT <- (RA)
  29     else                   RT <- (RB)
  30
  31 Special Registers Altered:
  32
  33     CR0                     (if Rc=1)
  34
  35 # Fixed Point Signed Min
  36
  37 X-Form
  38
  39 * mins  RT,RA,RB (Rc=0)
  40 * mins. RT,RA,RB (Rc=1)
  41
  42 Pseudo-code:
  43
  44     if   (RA) < (RB) then RT <- (RA)
  45     else                  RT <- (RB)
  46
  47 Special Registers Altered:
  48
  49     CR0                     (if Rc=1)
  50
  51 # Fixed Point Unsighed Min
  52
  53 X-Form
  54
  55 * minu  RT,RA,RB (Rc=0)
  56 * minu. RT,RA,RB (Rc=1)
  57
  58 Pseudo-code:
  59
  60     if   (RA) < (RB) then RT <- (RA)
  61     else                  RT <- (RB)
  62
  63 Special Registers Altered:
  64
  65     CR0                     (if Rc=1)
  66