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Conventions – Motorola MPC8260 User Manual

Page 60

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MPC8260 PowerQUICC II UserÕs Manual

MOTOROLA

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Application notesÑThese short documents contain useful information about
speciÞc design issues useful to programmers and engineers working with PowerPC
processors.

For a current list of PowerPC documentation, refer to the world-wide web at
http://www.mot.com/PowerPC.

Conventions

This document uses the following notational conventions:

Bold entries in Þgures and tables showing registers and parameter
RAM should be initialized by the user.

mnemonics

Instruction mnemonics are shown in lowercase bold.

italics

Italics indicate variable command parameters, for example, bcctrx.
Book titles in text are set in italics.

0x0

PreÞx to denote hexadecimal number

0b0

PreÞx to denote binary number

rA, rB

Instruction syntax used to identify a source GPR

rD

Instruction syntax used to identify a destination GPR

REG[FIELD]

Abbreviations or acronyms for registers or buffer descriptors are
shown in uppercase text. SpeciÞc bits, Þelds, or numerical ranges
appear in brackets. For example, MSR[LE] refers to the little-endian
mode enable bit in the machine state register.

x

In certain contexts, such as in a signal encoding or a bit Þeld,
indicates a donÕt care.

n

Used to express an undeÞned numerical value

Â

NOT logical operator

&

AND logical operator

|

OR logical operator

Bold