Panasonic MN103001G/F01K User Manual

2-12

CPU

2.4.3

Instruction Set

The instruction set has a simple organization, and features the generation of compact and optimized code through a
C compiler.
The instruction code size is reduced by making the basic instruction word length one byte.  As a result, increases in
the code size of the assembler program can be kept to a minimum even though the instruction set is simple, with

data transfers to and from memory limited to load and store operations.

Table 2-4-3   Instruction Types (All 46 types and extension instructions)

• Transfer instructions

MOV

Transfer of word data between registers

Transfer of word data between registers and the memory

Transfer of immediate values to registers

MOVBU

Transfer of byte data between registers and the memory

(zero-extension)

MOVHU

Transfer of halfword data between registers and the memory

(zero-extension)

EXT

64-bit sign-extension of word data

EXTB

32-bit sign-extension of byte data

EXTBU

32-bit zero-extension of byte data

EXTH

32-bit sign-extension of halfword data

EXTHU

32-bit zero-extension of halfword data

MOVM

Transfer between multiple registers and the memory

CLR

Data clear

• Arithmetic instructions

ADD

Addition

ADDC

Addition with carry

SUB

Subtraction

SUBC

Subtraction with borrow

MUL

Signed multiplication

MULU

Unsigned multiplication

DIV

Signed division

DIVU

Unsigned division

INC

Increment by 1

INC4

Increment by 4

• Compare instructions

CMP

Compare

• Logical instructions

AND

And

OR

Inclusive Or

XOR

Exclusive Or

NOT

Not (complement of 1)