2. CPU
Rev.3.00 Jul. 19, 2007 page 47 of 532
REJ09B0397-0300
2.5.5 Bit
Manipulations
Table 2.8 describes the bit-manipulation instructions. Figure 2.7 shows their object code formats.
Table 2.8
Bit-Manipulation Instructions
Instruction Size
*
Function
BSET
B
1
→
(<bit-No.> of <EAd>)
Sets a specified bit to 1 in a general register or memory operand. The
bit number is specified by 3-bit immediate data or the lower three bits
of a general register.
BCLR
B
0
→
(<bit-No.> of <EAd>)
Clears a specified bit to 0 in a general register or memory operand.
The bit number is specified by 3-bit immediate data or the lower three
bits of a general register.
BNOT
B
~ (<bit-No.> of <EAd>)
→
(<bit-No.> of <EAd>)
Inverts a specified bit in a general register or memory operand. The bit
number is specified by 3-bit immediate data or the lower three bits of a
general register.
BTST
B
~ (<bit-No.> of <EAd>)
→
Z
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.
BAND B C
∧
(<bit-No.> of <EAd>)
→
C
ANDs the C flag with a specified bit in a general register or memory
operand, and stores the result in the C flag.
BIAND B C
∧
[~ (<bit-No.> of <EAd>)]
→
C
ANDs the C flag with the inverse of a specified bit in a general register
or memory operand, and stores the result in the C flag.
The bit number is specified by 3-bit immediate data.
BOR B C
∨
(<bit-No.> of <EAd>)
→
C
ORs the C flag with a specified bit in a general register or memory
operand, and stores the result in the C flag.
BIOR B C
∨
[~ (<bit-No.> of <EAd>)]
→
C
ORs the C flag with the inverse of a specified bit in a general register
or memory operand, and stores the result in the C flag.
The bit number is specified by 3-bit immediate data.
Note:
*
Size: Operand
size
B:
Byte
Содержание F-ZTAT H8 Series
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