MicroBlaze Processor Reference Guide 202
UG984 (v2018.2) June 21, 2018 www.xilinx.com
Chapter 5: MicroBlaze Instruction Set Architecture
andni
Logical AND NOT with Immediate
andni
rD, rA, IMM
1 0 1 0 1 1 rD rA IMM
0 6 11 16
31
Description
The IMM field is sign-extended to 32 bits. The contents of register rA are ANDed with the logical
complement of the extended IMM field; the result is placed into register rD.
Pseudocode
(rD) ← (rA) ∧ (sext(IMM))
Registers Altered
•rD
Latency
1 cycle
Note
By default, Type B Instructions will take the 16-bit IMM field value and sign extend it to 32 bits to use
as the immediate operand. This behavior can be overridden by preceding the Type B instruction with
an imm instruction. See the instruction
“imm” for details on using 32-bit immediate values.
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