Specifications

8–52 Altera Corporation
Nios II Processor Reference Handbook October 2007
eret
eret
exception return
Operation:
status
←
estatus
PC
←
ea
Assembler Syntax:
eret
Example:
eret
Description:
Copies the value of
estatus into the status register, and transfers execution to the
address in
ea.
Usage:
Use
eret to return from traps, external interrupts, and other exception-handling
routines. Note that before returning from hardware interrupt exceptions, the exception
handler must adjust the
ea register.
Instruction Type: R
Instruction Fields: None
313029282726252423222120191817161514131211109876543210
0x1d 0 0 0x01 0 0x3a