Power ISA™ Version 2.03 - Power.org

Version 2.03
Condition Register NOR
XL-form
Condition Register Equivalent
XL-form
crnor
BT,BA,BB
creqv
BT,BA,BB
19 BT BA BB 33 /
0 6 11 16 21 31
19 BT BA BB 289 /
0 6 11 16 21 31
CR BT+32 ¬(CR BA+32 | CR BB+32 )
The bit in the Condition Register specified by BA+32 is
ORed with the bit in the Condition Register specified by
BB+32, and the complemented result is placed into the
bit in the Condition Register specified by BT+32.
Special Registers Altered:
CR BT+32
Extended Mnemonics:
Example of extended mnemonics for Condition Register
NOR:
CR BT+32 CR BA+32 ≡ CR BB+32
The bit in the Condition Register specified by BA+32 is
XORed with the bit in the Condition Register specified
by BB+32, and the complemented result is placed into
the bit in the Condition Register specified by BT+32.
Special Registers Altered:
CR BT+32
Extended Mnemonics:
Example of extended mnemonics for Condition Register
Equivalent:
Extended:
crnot Bx,By
Equivalent to:
crnor Bx,By,By
Extended:
crset Bx
Equivalent to:
creqv Bx,Bx,Bx
Condition Register AND with Complement
XL-form
Condition Register OR with Complement
XL-form
crandc
BT,BA,BB
crorc
BT,BA,BB
19 BT BA BB 129 /
0 6 11 16 21 31
19 BT BA BB 417 /
0 6 11 16 21 31
CR BT+32 CR BA+32 & ¬CR BB+32
The bit in the Condition Register specified by BA+32 is
ANDed with the complement of the bit in the Condition
Register specified by BB+32, and the result is placed
into the bit in the Condition Register specified by
BT+32.
Special Registers Altered:
CR BT+32
CR BT+32 CR BA+32 | ¬CR BB+32
The bit in the Condition Register specified by BA+32 is
ORed with the complement of the bit in the Condition
Register specified by BB+32, and the result is placed
into the bit in the Condition Register specified by
BT+32.
Special Registers Altered:
CR BT+32
2.5.2 Condition Register Field Instruction
Move Condition Register Field
XL-form
mcrf
BF,BFA
19 BF // BFA // /// 0 /
0 6 9 11 14 16 21 31
CR 4×BF+32:4×BF+35 CR 4×BFA+32:4×BFA+35
The contents of Condition Register field BFA are copied
to Condition Register field BF.
Special Registers Altered:
CR field BF
32
Power ISA -- Book I