R

Chapter 4: MicroBlaze Instruction Set Architecture

ori

Logical OR with Immediate

ori

rD, rA, IMM

1 0 1 0 0 0

rD

rA

IMM

0

6

11

16

31

Description

The contents of register rA are ORed with the extended IMM field, sign-extended to 32 bits; the result is placed into register rD.

Pseudocode

(rD) (rA) (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 imm instruction for details on using 32-bit immediate values.

122

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Xilinx EDK 8.2i manual Logical or with Immediate Ori RD, rA, IMM