Motorola MC68340 ユーザーズマニュアル

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MOTOROLA

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Contents of a referenced location

Example: (Rn) refers to the contents of Rn

CCR

Condition code register (lower byte of SR)

X—extend bit
N—negative bit
Z—zero bit
V—overflow bit
C—carry bit

PC

Program counter

SP

Active stack pointer

SR

Status register

SSP

Supervisor stack pointer

USP

User stack pointer

FC

Function code

DFC

Destination function code register

SFC

Source function code register

+

Arithmetic addition or postincrement

–

Arithmetic subtraction or predecrement

/

Arithmetic division or conjunction symbol

×

Arithmetic multiplication

=

Equal to

≠

Not equal to

>

Greater than

≥

Greater than or equal to

<

Less than

≤

Less than or equal to

Λ

Logical AND

V

Logical OR

⊕

Logical exclusive OR

~

Invert; operand is logically complemented

BCD

Binary-coded decimal, indicated by subscript

Example: Source10 is a BCD source operand.

LSW

Least significant word

MSW

Most significant word

{R/W}

Read/write indicator

In a description of an operation, a destination operand is placed to the right of source
operands and is indicated by an arrow (

⇒).

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Freescale Semiconductor, Inc.

For More Information On This Product,

   Go to: www.freescale.com

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