231
9140CINDCO02/10
ATA8741
ROL
Rd
Rotate Left Through Carry
Rd(0)?C,Rd(n+1)? Rd(n),C?Rd(7)
Z,C,N,V
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),Rd(7..4)?Rd(3..0)
None
1
BSET
s
Flag Set
SREG(s) ? 1
SREG(s)
1
BCLR
s
Flag Clear
SREG(s) ? 0
SREG(s)
1
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
SEN
Set Negative Flag
N ? 1
N
1
CLN
Clear Negative Flag
N ? 0
N
1
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
SEH
Set Half Carry Flag in SREG
H ? 1
H
1
CLH
Clear Half Carry Flag in SREG
H ? 0
H
1
DATA TRANSFER INSTRUCTIONS
MOV
Rd, Rr
Move Between Registers
Rd ? Rr
None
1
MOVW
Rd, Rr
Copy Register Word
Rd+1:Rd ? Rr+1:Rr
None
1
LDI
Rd, K
Load Immediate
Rd ? K
None
1
LD
Rd, X
Load Indirect
Rd ? (X)
None
2
LD
Rd, X+
Load Indirect and Post-Inc.
Rd ? (X), X ? X + 1
None
2
LD
Rd, - X
Load Indirect and Pre-Dec.
X ? X - 1, Rd ? (X)
None
2
LD
Rd, Y
Load Indirect
Rd ? (Y)
None
2
LD
Rd, Y+
Load Indirect and Post-Inc.
Rd ? (Y), Y ? Y + 1
None
2
LD
Rd, - Y
Load Indirect and Pre-Dec.
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-Inc.
Rd ? (Z), Z ? Z+1
None
2
LD
Rd, -Z
Load Indirect and Pre-Dec.
Z ? Z - 1, Rd ? (Z)
None
2
LDD
Rd, Z+q
Load Indirect with Displacement
Rd ? (Z + q)
None
2
LDS
Rd, k
Load Direct from SRAM
Rd ? (k)
None
2
ST
X, Rr
Store Indirect
(X) ? Rr
None
2
ST
X+, Rr
Store Indirect and Post-Inc.
(X) ? Rr, X ? X + 1
None
2
ST
- X, Rr
Store Indirect and Pre-Dec.
X ? X - 1, (X) ? Rr
None
2
ST
Y, Rr
Store Indirect
(Y) ? Rr
None
2
ST
Y+, Rr
Store Indirect and Post-Inc.
(Y) ? Rr, Y ? Y + 1
None
2
ST
- Y, Rr
Store Indirect and Pre-Dec.
Y ? Y - 1, (Y) ? Rr
None
2
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-Inc.
(Z) ? Rr, Z ? Z + 1
None
2
ST
-Z, Rr
Store Indirect and Pre-Dec.
Z ? Z - 1, (Z) ? Rr
None
2
STD
Z+q,Rr
Store Indirect with Displacement
(Z + q) ? Rr
None
2
STS
k, Rr
Store Direct to SRAM
(k) ? Rr
None
2
LPM
Load Program Memory
R0 ? (Z)
None
3
LPM
Rd, Z
Load Program Memory
Rd ? (Z)
None
3
LPM
Rd, Z+
Load Program Memory and Post-Inc
Rd ? (Z), Z ? Z+1
None
3
SPM
Store Program Memory
(z) ? R1:R0
None
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
POP
Rd
Pop Register from Stack
Rd ? STACK
None
2
MCU CONTROL INSTRUCTIONS
NOP
No Operation
None
1
SLEEP
Sleep
(see specific descr. for Sleep function)
None
1
WDR
Watchdog Reset
(see specific descr. for WDR/Timer)
None
1
BREAK
Break
For On-chip Debug Only
None
N/A
Mnemonics
Operands
Description
Operation
Flags
#Clocks
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