Renesas H8/38342, Hardware Manual

Page: 99 / 721

Section 2 CPU
Rev. 6.00 Aug 04, 2006 page 61 of 680
REJ09B0145-0600
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 in a general register or memory to 1. 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 in a general register or memory to 0. 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. 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 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,
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, 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,
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, and stores the result in the C flag.
The bit number is specified by 3-bit immediate data.
Note:
*
Size: Operand size
B:
Byte