M80C31 データシートの表示（PDF） - Oki Electric Industry

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M80C31

CMOS 8-Bit Microcontroller

Oki Electric Industry 

¡ Semiconductor

MSM80C31F/80C51F

INSTRUCTION LIST

List of Instruction Symbols

A

: Accumulator

AB

: Register pair

AC

: Auxiliary carry flag

B

: Arithmetic operation register

C

: Carry flag

DPTR

: Data pointer

PC

: Program counter

Rr

: Register indicator (r = 0 to 7)

SP

: Stack pointer

AND

: Logical product

OR

: Logical sum

XOR

: Exclusive-OR

+

: Addition

–

: Subtraction

X

: Multiplication

/

: Division

(X)

: Denotes the contents of X

((X))

: Denotes the contents of address determined by the contents of X

#

: Denotes the immediate data

@

: Denotes the indirect address

=

: Equality

: Non-equality

¨

: Substitution

Æ

: Substitution

—

: Negation

<

: Smaller than

>

: Larger than

bit address : RAM and the special function register bit specifier address (b0 to b7)

code address : Absolute address (A0 to A15)

data

: Immediate data (I0 to I7)

relative offset : Relative jump address offset value (R0 to R7)

direct address : RAM and the special function register byte specifier address (a0 to a7)

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