Renesas H8 Series Hardware Manual

Section 2 CPU
Rev. 7.00 Mar 10, 2005 page 46 of 652
REJ09B0042-0700
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.
Notes: * Size: Operand size
B: Byte

Renesas H8 Series Specifications

General

Brand	Renesas
Model	H8 Series
Category	Computer Hardware
Language	English