Datasheet

Rev.6.00 Oct.28.2004 page 37 of 1016
REJ09B0138-0600H
Type Instruction Size*
1
Function
Arithmetic
operations
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.
DIVXS B/W Rd ÷ Rs → Rd
Performs signed 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.
CMP B/W/L Rd – Rs, Rd – #IMM
Compares data in a general register with data in another
general register or with immediate data, and sets CCR
bits according to the result.
NEG B/W/L 0 – Rd → Rd
Takes the two's complement (arithmetic complement) of
data in a general register.
EXTU W/L Rd (zero extension) → Rd
Extends the lower 8 bits of a 16-bit register to word size,
or the lower 16 bits of a 32-bit register to longword size,
by padding with zeros on the left.
EXTS W/L Rd (sign extension) → Rd
Extends the lower 8 bits of a 16-bit register to word size,
or the lower 16 bits of a 32-bit register to longword size,
by extending the sign bit.
TAS B @ERd – 0, 1 → (<bit 7> of @ERd)*
2
Tests memory contents, and sets the most significant bit
(bit 7) to 1.
Logic
operations
AND B/W/L Rd ∧ Rs → Rd, Rd ∧ #IMM → Rd
Performs a logical AND operation on a general register
and another general register or immediate data.
OR B/W/L Rd ∨ Rs → Rd, Rd ∨ #IMM → Rd
Performs a logical OR operation on a general register
and another general register or immediate data.
XOR B/W/L Rd ⊕ Rs → Rd, Rd ⊕ #IMM → Rd
Performs a logical exclusive OR operation on a general
register and another general register or immediate data.
NOT B/W/L ¬ (Rd) → (Rd)
Takes the one's complement of general register
contents.
Shift
operations
SHAL
SHAR
B/W/L Rd (shift) → Rd
Performs an arithmetic shift on general register contents.
1-bit or 2-bit shift is possible.
SHLL
SHLR
B/W/L Rd (shift) → Rd
Performs a logical shift on general register contents.
1-bit or 2-bit shift is possible.
ROTL
ROTR
B/W/L Rd (rotate) → Rd
Rotates general register contents.
1-bit or 2-bit rotation is possible.
ROTXL
ROTXR
B/W/L Rd (rotate) → Rd
Rotates general register contents through the carry flag.
1-bit or 2-bit rotation is possible.