Description:
This instruction loads register Rd with a byte from the Stack. The stack pointer is pre-incremented by 1 before the POP.
This instruction is not available in all devices. Refer to the device specific instruction set summary.
Operation:
(i)Rd ← STACK
Syntax: Operands: Program Counter: Stack:
(i) POP Rd 0 ≤ d ≤ 31 PC ← PC + 1 SP ← SP + 1
16-bit Opcode:
|
1001 |
000d |
dddd |
1111 |
Status Register (SREG) and Boolean Formula:
|
I |
T |
H |
S |
V |
N |
Z |
C |
|---|---|---|---|---|---|---|---|
|
- |
- |
- |
- |
- |
- |
- |
- |
Example:
callroutine ; Call subroutine ... routine: pushr14 ; Save r14 on the stack push r13 ; Save r13 on the stack ... pop r13 ; Restore r13 pop r14 ; Restore r14 ret ; Return from subroutine
Words: 1 (2 bytes)
Cycles: 2