BAND (Bit AND)
BAND
<Description>
This instruction ANDs a specified bit with the carry flag and places the result in the carry flag.
The specified bit can be located in a general register or memory. The bit number is specified
by 3-bit immediate data. The operation is shown schematically below.
The value of the specified bit is not changed.
<Instruction Formats>
* Register direct, register indirect, or absolute addressing.
Register direct
BAND
#xx:3, Rd
7
6
0 IMM
rd
2
Register indirect
BAND
#xx:3,@Rd
7
C
0 rd
0
7
6
0 IMM 0
6
Absolute address
BAND
#xx:3,@aa:8
7
E
abs
7
6
0 IMM 0
6
Addressing
mode
Mnem.
Operands
1st byte
Instruction code
No. of
states
2nd byte
3rd byte
4th byte
<Operation>
C
∧
(<Bit No.> of <EAd>)
→
C
<Assembly-Language Format>
BAND
#xx:3, <EAd>
<Examples>
BAND #0, R1L
BAND #4, @R3
BAND #7, @H'FFE0:8
<Operand Size>
Byte
<Condition Code>
I: Previous value remains unchanged.
H: Previous value remains unchanged.
N: Previous value remains unchanged.
Z: Previous value remains unchanged.
V: Previous value remains unchanged.
C: ANDed with the specified bit.
I
H
N
Z
V
C
—
—
—
— —
— —
↕
C
∧
C
Bit No.
7
0
#xx:3
Byte data in register or memory
<EAd>*
→
43
Содержание H8/300 Series
Страница 2: ...H8 300 Programming Manual...