Table of Contents
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Type
Instruction
Arithmetic
ADD
operations
SUB
ADDX
SUBX
INC
DEC
ADDS
SUBS
DAA
DAS
MULXU
MULXS
DIVXU
*1
Size
Function
Rd ± Rs → Rd, Rd ± #IMM → Rd
B/W/L
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
B
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
B/W/L
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
L
Adds or subtracts the value 1, 2, or 4 to or from data in a
32-bit register.
Rd decimal adjust → Rd
B
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
B/W
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
B/W
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
B/W
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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