Freescale Semiconductor PowerPC e500 Core - Terminology Conventions

PowerPC e500 Core Family Reference Manual, Rev. 1
Freescale Semiconductor xxxv
rD Instruction syntax used to identify a destination GPR
REG[FIELD] Abbreviations for registers are shown in uppercase text. Specific bits, fields,
or ranges appear in brackets. For example, MSR[LE] refers to the
little-endian mode enable bit in the machine state register.
x In some contexts, such as signal encodings, an unitalicized x indicates a
don’t care.
x An italicized x indicates an alphanumeric variable.
n An italicized n indicates an numeric variable.
¬ NOT logical operator
& AND logical operator
| OR logical operator
Indicates reserved bits or bit fields in a register. Although these bits can be
written to as ones or zeros, they are always read as zeros.
Terminology Conventions
Table i lists certain terms used in this manual that differ from the architecture terminology
conventions.
Table i. Terminology Conventions
Architecture Specification This Manual
Change bit Changed bit
Extended mnemonics Simplified mnemonics
Out of order memory accesses Speculative memory accesses
Privileged mode (or privileged state) Supervisor level
Problem mode (or problem state) User level
Reference bit Referenced bit
Relocation Translation
Storage (locations) Memory
Storage (the act of) Access
0 0 0 0