ST20-C1 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'ST20-C1' PDF : 205 Pages View PDF
8 Instruction Set Reference
eret
Code: 23 F2
Description: Return from an interrupt or trap.
Definition:
if (Statustrap_mode = clear)
signal interrupt return to interrupt controller
Areg′ ← word[Wptr @ ex.InterptdAreg]
Breg′ ← word[Wptr @ ex.InterptdBreg]
Creg′ ← word[Wptr @ ex.InterptdCreg]
Wptr′ ← word[Wptr @ ex.InterptdWptr]
Iptr′ ← word[Wptr @ ex.InterptdIptr]
Tdesc′ ← word[Wptr @ ex.InterptdTdesc]
Status′ ← word[Wptr @ ex.InterptdStatus]
Status Register:
Saved status register is restored.
Comments:
Secondary instruction.
The interrupted Wptr must be word aligned.
See also: ecall
Chapter 6.
exception return
107/205
®
Share Link: 
