Altera Nios II User Manual page 237

Chapter 8: Instruction Set Reference
Instruction Set Reference
initi
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
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Initializes the instruction cache line associated with address rA.
initi rA
initi r6
Ignoring the tag, initi identifies the instruction cache line associated with the byte address in
ra, and initi invalidates that line.
If the Nios II processor core does not have an instruction cache, the initi instruction
performs no operation.
This instruction is used to initialize the processor's instruction cache. Immediately after
processor reset, use initi to invalidate each line of the instruction cache.
For more information on instruction cache, refer to the
chapter of the Nios II Software Developer's Handbook.
Supervisor-only instruction
R
A = Register index of operand rA
24 23 22 21 20 19 18 17
0 0
initialize instruction cache line
Cache and Tightly Coupled Memory
16 15 14 13 12 11 10 9
0x29
8 7 6 5 4 3 2 1
0 0x3a
Nios II Processor Reference Handbook
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