Nios® II Processor Reference Guide

ID 683836
Date 8/28/2023
Public
Document Table of Contents

8.1.3. J-Type

J-type instructions contain:
  • A 6-bit opcode field
  • A 26-bit immediate data field

J-type instructions, such as call and jmpi, transfer execution anywhere within a 256-MB range.

Table 89.  J-Type Instruction Format
Bit Fields
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
IMM26
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
IMM26 OP