r4f2456 Renesas Electronics Corporation., r4f2456 Datasheet - Page 91
r4f2456
Manufacturer Part Number
r4f2456
Description
16-bit Single-chip Microcomputer H8s Family / H8s/2400 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.R4F2456.pdf
(1376 pages)
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Table 2.4
Note:
Instruction
ADD
SUB
ADDX
SUBX
INC
DEC
ADDS
SUBS
DAA
DAS
MULXU
MULXS
DIVXU
*
Size refers to the operand size.
B: Byte
W: Word
L: Longword
Arithmetic Operations Instructions (1)
Size *
B/W/L
B
B/W/L
L
B
B/W
B/W
B/W
Function
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 byte 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 byte data in two
general registers, or on immediate data and data in a general register.
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 the CCR to produce 4-bit BCD data.
Rd × 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.
Rd × 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.
Rd ÷ Rs → Rd
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.
Rev. 1.00 Sep. 19, 2008 Page 61 of 1342
REJ09B0467-0100
Section 2 CPU
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