HD64F3644PV Datasheet, PDF (55/551 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 2 CPU
2.5.2 Arithmetic Operations
Table 2.5 describes the arithmetic instructions.
Table 2.5 Arithmetic Instructions
Instruction Size^*
Function
ADD
B/W
Rd ± Rs → Rd, Rd + #IMM → Rd
SUB
Performs addition or subtraction on data in two general registers, or
addition on immediate data and data in a general register. Immediate
data cannot be subtracted from data in a general register. Word data
can be added or subtracted only when both words are in general
registers.
ADDX
B
Rd ± Rs ± C → Rd, Rd ± #IMM ± C → Rd
SUBX
Performs addition or subtraction with carry on data in two general
registers, or addition or subtraction with carry on immediate data and
data in a general register.
INC
B
Rd ± 1 → Rd
DEC
Increments or decrements a general register
ADDS
W
Rd ± 1 → Rd, Rd ± 2 → Rd
SUBS
Adds or subtracts 1 or 2 to or from a general register
DAA
B
Rd decimal adjust → Rd
DAS
Decimal-adjusts (adjusts to packed BCD) an addition or subtraction
result in a general register by referring to the CCR
MULXU
B
Rd × Rs → Rd
Performs 8-bit × 8-bit unsigned multiplication on data in two general
registers, providing a 16-bit result
DIVXU
B
Rd ÷ Rs → Rd
Performs 16-bit ÷ 8-bit unsigned division on data in two general
registers, providing an 8-bit quotient and 8-bit remainder
CMP
B/W
Rd – Rs, Rd – #IMM
Compares data in a general register with data in another general
register or with immediate data, and indicates the result in the CCR.
Word data can be compared only between two general registers.
NEG
B
0 – Rd → Rd
Obtains the two’s complement (arithmetic complement) of data in a
general register
Notes: * Size: Operand size
B: Byte
W: Word
Rev. 6.00 Sep 12, 2006 page 33 of 526
REJ09B0326-0600