HD64F3337YCP16V Datasheet, PDF (74/749 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

2.5.2 Arithmetic Operations
Table 2.5 describes the arithmetic instructions. See figure 2.6 in section 2.5.4, Shift Operations,
for their object codes.
Table 2.5 Arithmetic Instructions
Instruction
ADD
SUB
Size*
B/W
ADDX
B
SUBX
INC
B
DEC
ADDS
W
SUBS
DAA
B
DAS
MULXU
B
DIVXU
B
CMP
B/W
NEG
B
Note: * Size: Operand size
B: Byte
W: Word
42
Function
Rd ± Rs → Rd, Rd + #imm → Rd
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.
Rd ± Rs ± C → Rd, Rd ± #imm ± C → Rd
Performs addition or subtraction with carry or borrow on byte data in
two general registers, or addition or subtraction on immediate data
and data in a general register.
Rd ± #1 → Rd
Increments or decrements a general register.
Rd ± #imm → Rd
Adds or subtracts immediate data to or from data in a general
register. The immediate data must be 1 or 2.
Rd decimal adjust → Rd
Decimal-adjusts (adjusts to packed BCD) an addition or subtraction
result in a general register by referring to the CCR.
Rd × Rs → Rd
Performs 8-bit × 8-bit unsigned multiplication on data in two general
registers, providing a 16-bit result.
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.
Rd – Rs, Rd – #imm
Compares data in a general register with data in another general
register or with immediate data. Word data can be compared only
between two general registers.
0 – Rd → Rd
Obtains the two’s complement (arithmetic complement) of data in a
general register.