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Architecture
192
SYNC Synchronize SYNC
31 26 25 6 5 0
SPECIAL
000000
0
0000 0000 0000 0000 0000
SNYC
001111
6 20 6
Format :
SYNC
Description :
Interlocks the pipeline until the load, store or data cache refill operation of the previous instruction is
completed.
The R3900 Processor Core can continue processing instructions following a load instruction even if
a cache refill is caused by the load instruction or a load is made from a noncacheable area.
Executing a SYNC instruction interlocks subsequent instructions until the SYNC instruction
execution is completed. This ensures that the instructions following a load instruction are executed
in the proper sequence.
This instruction is valid in user mode.
Operation :
T: SyncOperation()
Exceptions :
None