Renesas H8S/2111B Network Card User Manual


 
Rev. 1.00, 05/04, page 32 of 544
Table 2.4 Arithmetic Operations Instructions (1)
Instruction Size* Function
ADD
SUB
B/W/L 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. (Subtraction on
immediate data and data in a general register cannot be performed in
bytes. Use the SUBX or ADD instruction.)
ADDX
SUBX
B Rd ± Rs ± C Rd, Rd ± #IMM ± C Rd
Performs addition or subtraction with carry on data in two general
registers, or on immediate data and data in a general register.
INC
DEC
B/W/L Rd ± 1 Rd, Rd ± 2 Rd
Adds or subtracts the value 1 or 2 to or from data in a general
register. (Only the value 1 can be added to or subtracted from byte
operands.)
ADDS
SUBS
L 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.
DAA
DAS
B Rd (decimal adjust) Rd
Decimal-adjusts an addition or subtraction result in a general register
by referring to CCR to produce 4-bit BCD data.
MULXU B/W 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.
MULXS B/W 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.
DIVXU B/W 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.
Note: * Size refers to the operand size.
B: Byte
W: Word
L: Longword