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MicroBlaze Processor Reference Guide
UG081 (v14.7)
Chapter 5:
MicroBlaze Instruction Set Architecture
swaph
Swap Halfwords
Description
Swaps the contents of register rA treated as two halfwords, and places the result in rD. This
effectively converts the two halfwords in the register between endianness formats, either from little-
endian to big-endian or vice versa.
Pseudocode
(rD)[0:15]
← (
rA)[16:31]
(rD)[16:31]
← (
rA)[0:15]
Registers Altered
•
rD
Latency
•
1 cycle
Note
This instruction is only valid if MicroBlaze is configured to use reorder instructions
(
C_USE_REORDER_INSTR = 1
).
swaph
rD, rA
1 0 0 1 0 0
rD
rA
0 0 0 0 0 0 0 1 1 1 1 0 0 0 1 0
0
6
1
1
1
6
3
1