Specifications

Usage
Use flushda to write dirty lines back to memory only if the
addressed memory location is currently in the cache, and then
flush the cache line. By contrast, refer to “flushd flush data
cache line”, “initd initialize data cache line”, and “initda
initialize data cache address” for other cache-clearing options.
For more information on the Nios II data cache, refer to the
Cache and Tightly Coupled Memory chapter of the Nios II
Software Developer’s Handbook.
Exceptions
Supervisor-only data address
Fast TLB miss (data)
Double TLB miss (data)
MPU region violation (data)
Instruction Type
I
Instruction Fields
A = Register index of operand rA
IMM16 = 16-bit signed immediate value
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
A 0 IMM16
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
IMM16 0x1b
Related Information
• Cache and Tightly-Coupled Memory
• initda on page 8-44
• initd on page 8-43
• flushd on page 8-38
flushi
Instruction
flush instruction cache line
Operation
Flushes the instruction cache line associated with address rA.
Assembler Syntax
flushi rA
Example
flushi r6
NII51017
2015.04.02
flushi
8-41
Instruction Set Reference
Altera Corporation
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