H8SLASH3003 datasheet(50/715 Pages) RENESAS

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Table 2-4 Arithmetic Operation Instructions

Instruction

Size*

Function

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 register. (Immediate byte data cannot

be subtracted from 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 data in two general

registers, or on immediate data and data in a general register.

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.)

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 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.

Note: * Size refers to the operand size.

B: Byte

W: Word

Longword

ADDX,

SUBX

INC,

DEC

ADD,

SUB

ADDS,

SUBS

DAA,

DAS

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