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Type
Instruction
Bit-
BTST
manipulation
instructions
BAND
BIAND
BOR
BIOR
BXOR
BIXOR
BLD
BILD
1
Size*
Function
¬ (<bit-No.> of <EAd>) → Z
B
Tests a specified bit in a general register or memory
operand and sets or clears the Z flag accordingly. The
bit number is specified by 3-bit immediate data or the
lower three bits of a general register.
C ∧ (<bit-No.> of <EAd>) → C
B
ANDs the carry flag with a specified bit in a general
register or memory operand and stores the result in the
carry flag.
C ∧ ¬ (<bit-No.> of <EAd>) → C
B
ANDs the carry flag with the inverse of a specified bit in
a general register or memory operand and stores the
result in the carry flag.
The bit number is specified by 3-bit immediate data.
C ∨ (<bit-No.> of <EAd>) → C
B
ORs the carry flag with a specified bit in a general
register or memory operand and stores the result in the
carry flag.
C ∨ ¬ (<bit-No.> of <EAd>) → C
B
ORs the carry flag with the inverse of a specified bit in a
general register or memory operand and stores the
result in the carry flag.
The bit number is specified by 3-bit immediate data.
C ⊕ (<bit-No.> of <EAd>) → C
B
Exclusive-ORs the carry flag with a specified bit in a
general register or memory operand and stores the
result in the carry flag.
C ⊕ ¬ (<bit-No.> of <EAd>) → C
B
Exclusive-ORs the carry flag with the inverse of a
specified bit in a general register or memory operand
and stores the result in the carry flag.
The bit number is specified by 3-bit immediate data.
(<bit-No.> of <EAd>) → C
B
Transfers a specified bit in a general register or memory
operand to the carry flag.
¬ (<bit-No.> of <EAd>) → C
B
Transfers the inverse of a specified bit in a general
register or memory operand to the carry flag.
The bit number is specified by 3-bit immediate data.
45
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