Description:

Loads $FF directly to register Rd.

Operation:

(i) Rd ← $FF

Syntax: Operands: Program Counter:

(i) SER Rd 16 ≤ d ≤ 31 PC ← PC + 1

16-bit Opcode:

1110

1111

dddd

1111

Status Register (SREG) and Boolean Formula:

I

T

H

S

V

N

Z

C

-

-

-

-

-

-

-

-

Example:

clr r16 ; Clear r16
ser r17 ; Set r17
out $18,r16 ; Write zeros to Port B
nop ; Delay (do nothing)
out $18,r17 ; Write ones to Port B

Words: 1 (2 bytes)

Cycles: 1