Xilinx MicroBlaze Reference Manual page 230

Chapter 5: MicroBlaze Instruction Set Architecture
pcmpne
Pattern Compare Not Equal
pcmpne
1 0 0 0 1 1
0 6
Description
The contents of register rA is compared with the contents in register rB.
•
Pseudocode
Registers Altered
•
Latency
•
Note
This instruction is only available when the parameter C_USE_PCMP_INSTR is set to 1.
230
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rD, rA, rB
rD rA
1
1
rD is loaded with 0 if they match, and 1 if not
if (rB) = (rA) then
←
(rD) 0
else
←
(rD) 1
rD
1 cycle
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equality comparison with a negative boolean
result
rB 1 0 0 0 0 0 0 0 0 0 0
1 2
6 1
MicroBlaze Processor Reference Guide
3
1
UG081 (v14.7)