H8SSLASH2214 datasheet(99/936 Pages) RENESAS

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Section 2 CPU

Rev.4.00 Sep. 18, 2008 Page 39 of 872

REJ09B0189-0400

Type

Instruction

Size*

Function

Arithmetic

operations

ADD

SUB

B/W/L

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

byte data in a general register. Use the SUBX or ADD

instruction).

ADDX

SUBX

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.

INC

DEC

B/W/L

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.)

ADDS

SUBS

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.

DAA

DAS

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.

MULXU

B/W

× 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.

MULXS

B/W

× 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.

DIVXU

B/W

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.

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