h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 74

• Manufacturer Part Number: h8s-2646
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Section 2 CPU
Rev. 5.00 Sep 22, 2005 page 48 of 1136
REJ09B0257-0500
Type
Arithmetic
operations
Instruction
ADD
SUB
ADDX
SUBX
INC
DEC
ADDS
SUBS
DAA
DAS
MULXU
MULXS
DIVXU
Size *
B/W/L
B
B/W/L
L
B
B/W
B/W
B/W
1
Function
Rd ± Rs → Rd, Rd ± #IMM → Rd
Performs addition or subtraction on data in two general
registers, or on immediate data and data in a general
register. (Immediate byte data cannot be subtracted
from byte data in a general register. Use the SUBX or
ADD instruction.)
Rd ± Rs ± C → Rd, Rd ± #IMM ± C → Rd
Performs addition or subtraction with carry or borrow on
byte data in two general registers, or on immediate data
and data in a general register.
Rd ± 1 → Rd, Rd ± 2 → Rd
Increments or decrements a general register by 1 or 2.
(Byte operands can be incremented or decremented by
1 only.)
Rd ± 1 → Rd, Rd ± 2 → Rd, Rd ± 4 → Rd
Adds or subtracts the value 1, 2, or 4 to or from data in a
32-bit register.
Rd decimal adjust → Rd
Decimal-adjusts an addition or subtraction result in a
general register by referring to the CCR to produce 4-bit
BCD data.
Rd × Rs → Rd
Performs unsigned multiplication on data in two general
registers: either 8 bits × 8 bits → 16 bits or 16 bits ×
16 bits → 32 bits.
Rd × Rs → Rd
Performs signed multiplication on data in two general
registers: either 8 bits × 8 bits → 16 bits or 16 bits ×
16 bits → 32 bits.
Rd ÷ Rs → Rd
Performs unsigned division on data in two general
registers: either 16 bits ÷ 8 bits → 8-bit quotient and 8-bit
remainder or 32 bits ÷ 16 bits → 16-bit quotient and 16-
bit remainder.