Table of Contents
Advertisement
Table 2-4 Arithmetic Operation Instructions
www.DataSheet4U.com
Instruction Size*
Function
Rd ± Rs → Rd, Rd ± #IMM → Rd
ADD,
B/W/L
SUB
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
ADDX,
B
SUBX
Performs addition or subtraction with carry or borrow on data in two general
registers, or on immediate data and data in a general register.
Rd ± 1 → Rd, Rd ± 2 → Rd
INC,
B/W/L
DEC
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,
L
SUBS
Adds or subtracts the value 1, 2, or 4 to or from data in a 32-bit register.
Rd decimal adjust → Rd
DAA,
B
DAS
Decimal-adjusts an addition or subtraction result in a general register by
referring to CCR to produce 4-bit BCD data.
Rd × Rs → Rd
MULXU
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
MULXS
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.
Note: * Size refers to the operand size.
B: Byte
W: Word
L: Longword
30
Advertisement
Table of Contents
