IPR-NIOS Altera, IPR-NIOS Datasheet - Page 210

• Manufacturer Part Number: IPR-NIOS
• Description: IP NIOS II MEGACORE RENEW
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IPR-NIOS

• License: Renewal License
• Lead Free Status / RoHS Status: Not applicable / Not applicable

8–24
bret
Nios II Processor Reference Handbook
Operation:
Assembler Syntax:
Example:
Description:
Usage:
Exceptions:
Instruction Type:
Instruction Fields:
31
30
0x1e
29
28
27
26
25
24
0
status ← bstatus
PC ← ba
bret
bret
Copies the value of bstatus to the status register, then transfers execution to the address in
ba.
bret is used by debuggers exclusively and should not appear in user programs, operating
systems, or exception handlers.
Misaligned destination address
Supervisor-only instruction
R
None
23
22
21
20
19
0
18
17
16
15
14
0x09
13
12
11
10
9
0
8
Chapter 8: Instruction Set Reference
December 2010 Altera Corporation
7
6
breakpoint return
5
Instruction Set Reference
4
0x3a
3
2
1
0