openpower/isa/condition.mdwn

   1 # Condition Register AND
   2
   3 XL-Form
   4
   5 * crand BT,BA,BB
   6
   7     CR[BT+32] <-  CR[BA+32] & CR[BB+32]
   8
   9 Special Registers Altered:
  10
  11     CR[BT+32]
  12
  13 # Condition Register NAND
  14
  15 XL-Form
  16
  17 * crnand BT,BA,BB
  18
  19     CR[BT+32] <- ¬(CR[BA+32] & CR[BB+32])
  20
  21 Special Registers Altered:
  22
  23     CR[BT+32]
  24
  25 # Condition Register OR
  26
  27 XL-Form
  28
  29 * cror BT,BA,BB
  30
  31     CR[BT+32] <-  CR[BA+32] | CR[BB+32]
  32
  33 Special Registers Altered:
  34
  35     CR[BT+32]
  36
  37 # Condition Register XOR
  38
  39 XL-Form
  40
  41 * crxor     BT,BA,BB
  42
  43     CR[BT+32] <- CR[BA+32] ^ CR[BB+32]
  44
  45 Special Registers Altered:
  46
  47     CR[BT+32]
  48
  49 # Condition Register NOR
  50
  51 XL-Form
  52
  53 * crnor BT,BA,BB
  54
  55     CR[BT+32] <- ¬(CR[BA+32] | CR[BB+32])
  56
  57 Special Registers Altered:
  58
  59     CR[BT+32]
  60
  61 # Condition Register Equivalent
  62
  63 XL-Form
  64
  65 * creqv BT,BA,BB
  66
  67     CR[BT+32] <- CR[BA+32] => CR[BB+32]
  68
  69 Special Registers Altered:
  70
  71     CR[BT+32]
  72
  73 # Condition Register AND with Complement
  74
  75 XL-Form
  76
  77 * crandc BT,BA,BB
  78
  79     CR[BT+32] <- CR[BA+32] &  ¬CR[BB+32]
  80
  81 Special Registers Altered:
  82
  83     CR[BT+32]
  84
  85 # Condition Register OR with Complement
  86
  87 XL-Form
  88
  89 * crorc BT,BA,BB
  90
  91     CR[BT+32] <- CR[BA+32] |  ¬CR[BB+32]
  92
  93 # Move Condition Register Field
  94
  95 XL-Form
  96
  97 * mcrf BF,BFA
  98
  99     CR[4*BF+32:4*BF+35] <- CR[4*BFA+32:4*BFA+35]
 100
 101 Special Registers Altered:
 102
 103     CR field BF
 104