Assembler mnemonics/de
BASCOM unterstützt die von Atmel definierten Mnemonics.
Der in BASCOM integrierte Assembler akzeptiert Mnemonics des Befehlssatzes.
Hier wird ein Überblick über die Befehlsliste (Mnemonics) und deren Parameter gegeben. Eine genauere Beschreibung der Anweisungen (Mnemonics) erhalten sie durch die AVR Datenbücher.
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Mnemonics |
Operanden |
Beschreibung |
Operation |
Flags |
Clock |
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ARITHMETIC AND LOGIC INSTRUCTIONS |
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ADD |
Rd, Rr |
Add without Carry |
Rd = Rd + Rr |
Z,C,N,V,H |
1 |
|
ADC |
Rd, Rr |
Add with Carry |
Rd = Rd + Rr + C |
Z,C,N,V,H |
1 |
|
SUB |
Rd, Rr |
Subtract without Carry |
Rd = Rd – Rr |
Z,C,N,V,H |
1 |
|
SUBI |
Rd, K |
Subtract Immediate |
Rd = Rd – K |
Z,C,N,V,H |
1 |
|
SBC |
Rd, Rr |
Subtract with Carry |
Rd = Rd - Rr - C |
Z,C,N,V,H |
1 |
|
SBCI |
Rd, K |
Subtract Immediate with Carry |
Rd = Rd - K - C |
Z,C,N,V,H |
1 |
|
AND |
Rd, Rr |
Logical AND |
Rd = Rd · Rr |
Z,N,V |
1 |
|
ANDI |
Rd, K |
Logical AND with Immediate |
Rd = Rd · K |
Z,N,V |
1 |
|
OR |
Rd, Rr |
Logical OR |
Rd = Rd v Rr |
Z,N,V |
1 |
|
ORI |
Rd, K |
Logical OR with Immediate |
Rd = Rd v K |
Z,N,V |
1 |
|
EOR |
Rd, Rr |
Exclusive OR |
Rd = Rd Å Rr |
Z,N,V |
1 |
|
COM |
Rd |
Ones Complement |
Rd = $FF - Rd |
Z,C,N,V |
1 |
|
NEG |
Rd |
Twos Complement |
Rd = $00 - Rd |
Z,C,N,V,H |
1 |
|
SBR |
Rd,K |
Set Bit(s) in Register |
Rd = Rd v K |
Z,N,V |
1 |
|
CBR |
Rd,K |
Clear Bit(s) in Register |
Rd = Rd · ($FFh - K) |
Z,N,V |
1 |
|
INC |
Rd |
Increment |
Rd = Rd + 1 |
Z,N,V |
1 |
|
DEC |
Rd |
Decrement |
Rd = Rd - 1 |
Z,N,V |
1 |
|
TST |
Rd |
Test for Zero or Minus |
Rd = Rd · Rd |
Z,N,V |
1 |
|
CLR |
Rd |
Clear Register |
Rd = Rd Å Rd |
Z,N,V |
1 |
|
SER |
Rd |
Set Register |
Rd = $FF |
None |
1 |
|
ADIW
Adiw r24, K6 |
Rdl, K6 |
Add Immediate to Word |
Rdh:Rdl = Rdh:Rdl + K |
Z,C,N,V,S |
2 |
|
SBIW
Sbiw R24,K6 |
Rdl, K6 |
Subtract Immediate from Word |
Rdh:Rdl = Rdh:Rdl - K |
Z,C,N,V,S |
2 |
|
MUL |
Rd,Rr |
Multiply Unsigned |
R1, R0 = Rd * Rr |
C |
2 * |
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BRANCH INSTRUCTIONS |
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RJMP |
K |
Relative Jump |
PC = PC + k + 1 |
None |
2 |
|
IJMP |
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Indirect Jump to (Z) |
PC = Z |
None |
2 |
|
JMP |
K |
Jump |
PC = k |
None |
3 |
|
RCALL |
K |
Relative Call Subroutine |
PC = PC + k + 1 |
None |
3 |
|
ICALL |
|
Indirect Call to (Z) |
PC = Z |
None |
3 |
|
CALL |
K |
Call Subroutine |
PC = k |
None |
4 |
|
RET |
|
Subroutine Return |
PC = STACK |
None |
4 |
|
RETI |
|
Interrupt Return |
PC = STACK |
I |
4 |
|
CPSE |
Rd,Rr |
Compare, Skip if Equal |
if (Rd = Rr) PC = PC + 2 or 3 |
None |
1 / 2 |
|
CP |
Rd,Rr |
Compare |
Rd - Rr |
Z,C,N,V,H, |
1 |
|
CPC |
Rd,Rr |
Compare with Carry |
Rd - Rr - C |
Z,C,N,V,H |
1 |
|
CPI |
Rd,K |
Compare with Immediate |
Rd - K |
Z,C,N,V,H |
1 |
|
SBRC |
Rr, b |
Skip if Bit in Register Cleared |
If (Rr(b)=0) PC = PC + 2 or 3 |
None |
1 / 2 |
|
SBRS |
Rr, b |
Skip if Bit in Register Set |
If (Rr(b)=1) PC = PC + 2 or 3 |
None |
1 / 2 |
|
SBIC |
P, b |
Skip if Bit in I/O Register Cleared |
If(I/O(P,b)=0) PC = PC + 2 or 3 |
None |
2 / 3 |
|
SBIS |
P, b |
Skip if Bit in I/O Register Set |
If(I/O(P,b)=1) PC = PC + 2 or 3 |
None |
2 / 3 |
|
BRBS |
s, k |
Branch if Status Flag Set |
if (SREG(s) = 1) then PC=PC+k + 1 |
None |
1 / 2 |
|
BRBC |
s, k |
Branch if Status Flag Cleared |
if (SREG(s) = 0) then PC=PC+k + 1 |
None |
1 / 2 |
|
BREQ |
K |
Branch if Equal |
if (Z = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRNE |
K |
Branch if Not Equal |
if (Z = 0) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRCS |
K |
Branch if Carry Set |
if (C = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRCC |
K |
Branch if Carry Cleared |
if (C = 0) then PC = PC + k + 1 |
None |
1 / 2 |
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BRSH |
K |
Branch if Same or Higher |
if (C = 0) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRLO |
K |
Branch if Lower |
if (C = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRMI |
K |
Branch if Minus |
if (N = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRPL |
K |
Branch if Plus |
if (N = 0) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRGE |
K |
Branch if Greater or Equal, Signed |
if (N V= 0) then PC = PC+ k + 1 |
None |
1 / 2 |
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BRLT |
K |
Branch if Less Than, Signed |
if (N V= 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRHS |
K |
Branch if Half Carry Flag Set |
if (H = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRHC |
K |
Branch if Half Carry Flag Cleared |
if (H = 0) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRTS |
K |
Branch if T Flag Set |
if (T = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRTC |
K |
Branch if T Flag Cleared |
if (T = 0) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRVS |
K |
Branch if Overflow Flag is Set |
if (V = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRVC |
K |
Branch if Overflow Flag is Cleared |
if (V = 0) then PC = PC + k + 1 |
None |
1 / 2 |
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BRIE |
K |
Branch if Interrupt Enabled |
if ( I = 1) then PC = PC + k + 1 |
None |
1 / 2 |
|
BRID |
K |
Branch if Interrupt Disabled |
if ( I = 0) then PC = PC + k + 1 |
None |
1 / 2 |
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DATA TRANSFER INSTRUCTIONS |
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MOV |
Rd, Rr |
Copy Register |
Rd = Rr |
None |
1 |
|
LDI |
Rd, K |
Load Immediate |
Rd = K |
None |
1 |
|
LDS |
Rd, k |
Load Direct |
Rd = (k) |
None |
2 |
|
LD |
Rd, X |
Load Indirect |
Rd = (X) |
None |
2 |
|
LD |
Rd, X+ |
Load Indirect and Post-Increment |
Rd = (X), X = X + 1 |
None |
2 |
|
LD |
Rd, -X |
Load Indirect and Pre-Decrement |
X = X - 1, Rd =(X) |
None |
2 |
|
LD |
Rd, Y |
Load Indirect |
Rd = (Y) |
None |
2 |
|
LD |
Rd, Y+ |
Load Indirect and Post-Increment |
Rd = (Y), Y = Y + 1 |
None |
2 |
|
LD |
Rd, -Y |
Load Indirect and Pre-Decrement |
Y = Y - 1, Rd = (Y) |
None |
2 |
|
LDD |
Rd,Y+q |
Load Indirect with Displacement |
Rd = (Y + q) |
None |
2 |
|
LD |
Rd, Z |
Load Indirect |
Rd = (Z) |
None |
2 |
|
LD |
Rd, Z+ |
Load Indirect and Post-Increment |
Rd = (Z), Z = Z+1 |
None |
2 |
|
LD |
Rd, -Z |
Load Indirect and Pre-Decrement |
Z = Z - 1, Rd = (Z) |
None |
2 |
|
LDD |
Rd, Z+q |
Load Indirect with Displacement |
Rd = (Z + q) |
None |
2 |
|
STS |
k, Rr |
Store Direct |
(k) = Rr |
None |
2 |
|
ST |
X, Rr |
Store Indirect |
(X) = Rr |
None |
2 |
|
ST |
X+, Rr |
Store Indirect and Post-Increment |
(X) = Rr, X = X + 1 |
None |
2 |
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ST |
-X, Rr |
Store Indirect and Pre-Decrement |
X = X - 1, (X) = Rr |
None |
2 |
|
ST |
Y, Rr |
Store Indirect |
(Y) = Rr |
None |
2 |
|
ST |
Y+, Rr |
Store Indirect and Post-Increment |
(Y) = Rr, Y = Y + 1 |
None |
2 |
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ST |
-Y, Rr |
Store Indirect and Pre-Decrement |
Y = Y - 1, (Y) = Rr |
None |
2 |
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STD |
Y+q,Rr |
Store Indirect with Displacement |
(Y + q) = Rr |
None |
2 |
|
ST |
Z, Rr |
Store Indirect |
(Z) = Rr |
None |
2 |
|
ST |
Z+, Rr |
Store Indirect and Post-Increment |
(Z) = Rr, Z = Z + 1 |
None |
2 |
|
ST |
-Z, Rr |
Store Indirect and Pre-Decrement |
Z = Z - 1, (Z) = Rr |
None |
2 |
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STD |
Z+q,Rr |
Store Indirect with Displacement |
(Z + q) = Rr |
None |
2 |
|
LPM |
|
Load Program Memory |
R0 =(Z) |
None |
3 |
|
IN |
Rd, P |
In Port |
Rd = P |
None |
1 |
|
OUT |
P, Rr |
Out Port |
P = Rr |
None |
1 |
|
PUSH |
Rr |
Push Register on Stack |
STACK = Rr |
None |
2 |
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POP |
Rd |
Pop Register from Stack |
Rd = STACK |
None |
2 |
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BIT AND BIT-TEST INSTRUCTIONS |
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LSL |
Rd |
Logical Shift Left |
Rd(n+1) =Rd(n),Rd(0)= 0,C=Rd(7) |
Z,C,N,V,H |
1 |
|
LSR |
Rd |
Logical Shift Right |
Rd(n) = Rd(n+1), Rd(7) =0, C=Rd(0) |
Z,C,N,V |
1 |
|
ROL |
Rd |
Rotate Left Through Carry |
Rd(0) =C, Rd(n+1) =Rd(n),C=Rd(7) |
Z,C,N,V,H |
1 |
|
ROR |
Rd |
Rotate Right Through Carry |
Rd(7) =C,Rd(n) =Rd(n+1),C¬Rd(0) |
Z,C,N,V |
1 |
|
ASR |
Rd |
Arithmetic Shift Right |
Rd(n) = Rd(n+1), n=0..6 |
Z,C,N,V |
1 |
|
SWAP |
Rd |
Swap Nibbles |
Rd(3..0) « Rd(7..4) |
None |
1 |
|
BSET |
S |
Flag Set |
SREG(s) = 1 |
SREG(s) |
1 |
|
BCLR |
S |
Flag Clear |
SREG(s) = 0 |
SREG(s) |
1 |
|
SBI |
P, b |
Set Bit in I/O Register |
I/O(P, b) = 1 |
None |
2 |
|
CBI |
P, b |
Clear Bit in I/O Register |
I/O(P, b) = 0 |
None |
2 |
|
BST |
Rr, b |
Bit Store from Register to T |
T = Rr(b) |
T |
1 |
|
BLD |
Rd, b |
Bit load from T to Register |
Rd(b) = T |
None |
1 |
|
SEC |
|
Set Carry |
C = 1 |
C |
1 |
|
CLC |
|
Clear Carry |
C = 0 |
C |
1 |
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SEN |
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Set Negative Flag |
N = 1 |
N |
1 |
|
CLN |
|
Clear Negative Flag |
N = 0 |
N |
1 |
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SEZ |
|
Set Zero Flag |
Z = 1 |
Z |
1 |
|
CLZ |
|
Clear Zero Flag |
Z = 0 |
Z |
1 |
|
SEI |
|
Global Interrupt Enable |
I = 1 |
I |
1 |
|
CLI |
|
Global Interrupt Disable |
I = 0 |
I |
1 |
|
SES |
|
Set Signed Test Flag |
S = 1 |
S |
1 |
|
CLS |
|
Clear Signed Test Flag |
S = 0 |
S |
1 |
|
SEV |
|
Set Twos Complement Overflow |
V = 1 |
V |
1 |
|
CLV |
|
Clear Twos Complement Overflow |
V = 0 |
V |
1 |
|
SET |
|
Set T in SREG |
T = 1 |
T |
1 |
|
CLT |
|
Clear T in SREG |
T = 0 |
T |
1 |
|
SHE |
|
Set Half Carry Flag in SREG |
H = 1 |
H |
1 |
|
CLH |
|
Clear Half Carry Flag in SREG |
H = 0 |
H |
1 |
|
NOP |
|
No Operation |
|
None |
1 |
|
SLEEP |
|
Sleep |
|
None |
1 |
|
WDR |
|
Watchdog Reset |
|
None |
1 |
- ) Nicht verfügbar bei Standard Mikrocontrollern
Der Assembler beachtet keine Groß- Kleinschreibung.
Die Operanden haben folgende Form:
Rd: R0-R31 or R16-R31 (abhängig vom Befehl)
Rr: R0-R31
b: Konstante (0-7)
s: Konstante (0-7)
P: Konstante (0-31/63)
K: Konstante (0-255)
k: Konstante , Wert Bereich abhängig vom Befehl.
q: Konstante (0-63)
Rdl: R24, R26, R28, R30. Für ADIW und SBIW Befehle
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