Altera Nios II User Manual page 233

Chapter 8: Instruction Set Reference
Instruction Set Reference
flushi
Operation:
Assembler Syntax:
Example:
Description:
Exceptions:
Instruction Type:
Instruction Fields:
31 30 29 28 27 26 25
A
February 2014 Altera Corporation
Flushes the instruction cache line associated with address rA.
flushi rA
flushi r6
Ignoring the tag, flushi identifies the instruction cache line associated with the byte address
in rA, and invalidates that line.
If the Nios II processor core does not have an instruction cache, the flushi instruction
performs no operation.
For more information about the data cache, refer to the
chapter of the Nios II Software Developer's Handbook.
None
R
A = Register index of operand rA
24 23 22 21 20 19 18 17
0 0
flush instruction cache line
Cache and Tightly Coupled Memory
16 15 14 13 12 11 10 9
0x0c
8 7 6 5 4 3 2 1
0 0x3a
Nios II Processor Reference Handbook
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