Compaq ECQD2KCTE Laptop User Manual


 
4–42 Alpha Architecture Handbook
4.5.1 Logical Functions
Format:
Operation:
Rc Rav AND Rbv !AND
Rc Rav OR Rbv !BIS
Rc Rav XOR Rbv !XOR
Rc Rav AND {NOT Rbv} !BIC
Rc Rav OR {NOT Rbv} !ORNOT
Rc Rav XOR {NOT Rbv} !EQV
Exceptions:
Instruction mnemonics:
Qualifiers:
Description:
These instructions perform the designated Boolean function between register Ra and register
Rb or a literal. The result is written to register Rc.
The NOT function can be performed by doing an ORNOT with zero (Ra = R31).
mnemonic Ra.rq,Rb.rq,Rc.wq
!Operate format
mnemonic Ra.rq,#b.ib,Rc.wq
!Operate format
None
AND Logical Product
BIC Logical Product with Complement
BIS Logical Sum (OR)
EQV Logical Equivalence (XORNOT)
ORNOT Logical Sum with Complement
XOR Logical Difference
None