Mnemonic Operands Description Op Flags
#Clocks
AVR
#Clocks
AVRxm
#Clocks
AVRxt
#Clocks
AVRrc
EIJMP Extended
Indirect Jump
to (Z)
PC(15:0)
PC(21:16)
←
←
Z
EIND
None 2 2 2 N/A
JMP k Jump PC ← k None 3 3 3 N/A
RCALL k Relative Call
Subroutine
PC ← PC + k + 1 None 3 / 4
(1)
2 / 3
(1)
2 / 3 3
(1)
ICALL Indirect Call to
(Z)
PC(15:0)
PC(21:16)
←
←
Z
0
None 3 / 4
(1)
2 / 3
(1)
2 / 3 3
(1)
EICALL Extended
Indirect Call to
(Z)
PC(15:0)
PC(21:16)
←
←
Z
EIND
None 4
(1)
3
(1)
2 / 3 N/A
CALL k Call
Subroutine
PC ← k None 4 / 5
(1)
3 / 4
(1)
3 / 4 N/A
RET Subroutine
Return
PC ← STACK None 4 / 5
(1)
4 / 5
(1)
4 / 5 6
(1)
RETI Interrupt
Return
PC ← STACK I 4 / 5
(1)
4 / 5
(1)
4 / 5 6
(1)
CPSE Rd,Rr Compare,
skip if Equal
if (Rd = Rr)
PC
← PC + 2 or 3 None 1 / 2 / 3 1 / 2 / 3 1 / 2 / 3 1 / 2
CP Rd,Rr Compare Rd - Rr Z,C,N,V,S,H 1 1 1 1
CPC Rd,Rr Compare with
Carry
Rd - Rr - C Z,C,N,V,S,H 1 1 1 1
CPI Rd,K Compare with
Immediate
Rd - K Z,C,N,V,S,H 1 1 1 1
SBRC Rr, b Skip if Bit in
Register
Cleared
if (Rr(b) = 0)
PC
← PC + 2 or 3 None 1 / 2 / 3 1 / 2 / 3 1 / 2 / 3 1 / 2
SBRS Rr, b Skip if Bit in
Register Set
if (Rr(b) = 1)
PC
← PC + 2 or 3 None 1 / 2 / 3 1 / 2 / 3 1 / 2 / 3 1 / 2
SBIC A, b Skip if Bit in
I/O Register
Cleared
if (I/O(A,b) =
0) PC
← PC + 2 or 3 None 1 / 2 / 3 2 / 3 / 4 1 / 2 / 3 1 / 2
SBIS A, b Skip if Bit in
I/O Register
Set
If (I/O(A,b) =1)
PC
← PC + 2 or 3 None 1 / 2 / 3 2 / 3 / 4 1 / 2 / 3 1 / 2
BRBS s, k Branch if
Status Flag
Set
if (SREG(s) =
1) then PC
← PC + k + 1 None 1 / 2 1 / 2 1 / 2 1 / 2
BRBC s, k Branch if
Status Flag
Cleared
if (SREG(s) =
0) then PC
← PC + k + 1 None 1 / 2 1 / 2 1 / 2 1 / 2
BREQ k Branch if
Equal
if (Z = 1) then
PC
← PC + k + 1 None 1 / 2 1 / 2 1 / 2 1 / 2
BRNE k Branch if Not
Equal
if (Z = 0) then
PC
← PC + k + 1 None 1 / 2 1 / 2 1 / 2 1 / 2
BRCS k Branch if
Carry Set
if (C = 1) then
PC
← PC + k + 1 None 1 / 2 1 / 2 1 / 2 1 / 2
BRCC k Branch if
Carry Cleared
if (C = 0) then
PC
← PC + k + 1 None 1 / 2 1 / 2 1 / 2 1 / 2
BRSH k Branch if
Same or
Higher
if (C = 0) then
PC
← PC + k + 1 None 1 / 2 1 / 2 1 / 2 1 / 2
Atmel AVR Instruction Set Manual [OTHER]
Atmel-0856L-AVR-Instruction-Set-Manual_Other-11/2016
24
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