Freescale Semiconductor MPC8260 - Manual (Page 134)

G2 Core
MPC8260 PowerQUICC II Family Reference Manual, Rev. 2
2-16 Freescale Semiconductor
2.3.2.2 PowerPC Instruction Set
The PowerPC instructions are divided into the following categories:
• Integer instructions—These include arithmetic and logical instructions.
— Integer arithmetic
— Integer compare
— Integer logical
— Integer rotate and shift
• Floating-point instructions—These include floating-point computational instructions, as well as
instructions that affect the FPSCR.
— Floating-point arithmetic
— Floating-point multiply/add
— Floating-point rounding and conversion
— Floating-point compare
— Floating-point status and control
• Load/store instructions—These include integer and floating-point load and store instructions.
— Integer load and store
— Integer load and store with byte reverse
— Integer load and store string/multiple
— Floating-point load and store
• Flow control instructions—These include branching instructions, condition register logical
instructions, trap instructions, and other synchronizing instructions that affect the instruction flow.
— Branch and trap
— Condition register logical
— Primitives used to construct atomic memory operations (lwarx and stwcx.)
— Synchronize
• Processor control instructions—These instructions are used for synchronizing memory accesses
and management of caches, TLBs, and the segment registers.
— Move to/from SPR
— Move to/from MSR
— Instruction synchronize
• Memory control instructions—These provide control of caches, TLBs, and segment registers.
— Supervisor-level cache management
— User-level cache management
— Segment register manipulation
— TLB management
Note that this grouping of the instructions does not indicate which execution unit executes a particular
instruction or group of instructions.