tspc603r ATMEL Corporation, tspc603r Datasheet - Page 33

• Manufacturer Part Number: tspc603r
• Description: Powerpc 603e Risc Microprocessor Family Pid7t-603e
• Manufacturer: ATMEL Corporation

12.2
12.2.1
5410B–HIREL–09/05
Instruction Set and Addressing Modes
PowerPC Instruction Set and Addressing Modes
The following subsections describe the PowerPC instruction set and addressing modes in
general.
All PowerPC instructions are encoded as single-word (32-bit) opcodes. Instruction formats are
consistent among all instruction types, permitting efficient decoding to occur in parallel with oper-
and accesses. This fixed instruction length and consistent format greatly simplifies instruction
pipelining.
PowerPC Instruction Set
The PowerPC instructions are divided into the following categories:
• Integer Instructions
• Floating-point Instructions
• Load/Store Instructions
• Flow Control Instructions
• Processor Control Instructions
as instructions that affect the FPSCR
instructions
instructions, trap instructions, and other instructions that affect the instruction flow
accesses and management of caches, TLBs, and the segment registers
– Integer arithmetic instructions
– Integer compare instructions
– Integer logical instructions
– Integer rotate and shift instructions
– Floating-point arithmetic instructions
– Floating-point multiply/add instructions
– Floating-point rounding and conversion instructions
– Floating-point compare instructions
– Floating-point status and control instructions
– Integer load and store instruction
– Integer load and store multiple instructions
– Floating-point load and store
– Primitives used to construct atomic memory operations (lwarx and stwcx
– Branch and trap instructions
– Condition register logical instructions
– Move to/from SPR instructions
– Move to/from MSR
– Synchronize
– Instruction synchronize
instructions)
–
these include computational and logical instructions
–
these include integer and floating-point load and store
–
–
these include branching instructions, condition register logical
these include floating-point computational instructions, as well
–
these instructions are used for synchronizing memory
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