転送命令
MOV Rd, Rr Rd = Rr
MOVW Rd, Rr Rd1 : Rd = Rr1 : Rr, r, d even
LDI Rd, K8 Rd = K8
LDS Rd, k Rd = (k)
LD Rd, X Rd = (X)
LD Rd, X+ Rd = (X), X = X + 1
LD Rd, -X X = X - 1, Rd = (X)
LD Rd, Y Rd = (Y)
LD Rd, Y+ Rd = (Y), Y = Y + 1
LD Rd, -Y Y = Y - 1, Rd = (Y)
LDD Rd, Y+q Rd = (Y + q)
LD Rd, Z Rd = (Z)
LD Rd, Z+ Rd = (Z), Z = Z + 1
LD Rd, -Z Z = Z - 1, Rd = (Z)
LDD Rd, Z+q Rd = (Z + q)
STS k, Rr (k) = Rr
ST X, Rr (X) = Rr
ST X+, Rr (X) = Rr, X = X + 1
ST -X, Rr X = X - 1, (X) = Rr
ST Y, Rr (Y) = Rr
ST Y+, Rr (Y) = Rr, Y = Y + 1
ST -Y, Rr Y = Y - 1, (Y) = Rr
ST Y+q, Rr (Y + q) = Rr
ST Z, Rr (Z) = Rr
ST Z+, Rr (Z) = Rr, Z = Z + 1
ST -Z, Rr Z = Z - 1, (Z) = Rr
ST Z+q, Rr (Z + q) = Rr
LPM R0 = (Z)
LPM Rd, Z Rd = (Z)
LPM Rd, Z+ Rd = (Z), Z = Z + 1
ELPM R0 = (RAMPZ : Z)
ELPM Rd, Z Rd = (RAMPZ : Z)
ELPM Rd, Z+ Rd = (RAMPZ : Z), Z = Z + 1
SPM (Z) = R1 : R0
ESPM (RAMPZ : Z) = R1 : R0
IN Rd, P Rd = P
OUT P, Rr P = Rr
PUSH Rr STACK = Rr
POP Rd Rd = STACK
ビット操作命令
LSL Rd Rd(n + 1) = Rd(n), Rd(0) = 0, C = Rd(7)
LSR Rd Rd(n) = Rd(n + 1), Rd(7) = 0, C = Rd(0)
ROL Rd Rd(0) = C, Rd(n + 1) = Rd(n), C = Rd(7)
ROR Rd Rd(7) = C, Rd(n) = Rd(n + 1), C = Rd(0)
ASR Rd Rd(n) = Rd(n + 1), n = 0, ..., 6
SWAP Rd(3..0) = Rd(7..4), Rd(7..4) = Rd(3..0)
BSET s SREG(s) = 1
BCLR s SREG(s) = 0
SBI P, b I/O(P, b) = 1
CBI P, b I/O(P, b) = 0
BST Rr, b T = Rr(b)
BLD Rd, b Rd(b) = T
SEC C = 1
CLC C = 0
SEN N = 1
CLN N = 0
SEZ Z = 1
CLZ Z = 0
SEI I = 1
CLI I = 0
SES S = 1
CLN S = 0
SEV V = 1
CLV V = 0
SET T = 1
CLT T = 0
SEH H = 1
CLH H = 0
NOP No operation
SLEEP Sleep
WDR Watchdog
BREAK Execution Break
算術命令
ADD Rd, Rr Rd = Rd + Rr
ADC Rd, Rr Rd = Rd + Rr + C
ADIW Rd, K Rd + 1 : Rd, K
SUB Rd, Rr Rd = Rd - Rr
SUBI Rd, K8 Rd = Rd - K8
SBC Rd, Rr Rd = Rd - Rr - C
SBCI Rd, K8 Rd = Rd - K8 - C
AND Rd, Rr Rd = Rd · Rr
ANDI Rd, K8 Rd = Rd · K8
OR Rd, Rr Rd = Rd V Rr
ORI Rd, K8 Rd = Rd V K8
EOR Rd, Rr Rd = Rd EOR Rr
COM Rd Rd = $FF - Rd
NEG Rd Rd = $00 - Rd
SBR Rd, k8 Rd = Rd V K8
CBR Rd, k8 Rd = Rd · ($FF - K8)
INC Rd Rd = Rd + 1
DEC Rd Rd = Rd - 1
TST Rd Rd = Rd · Rd
CLR Rd Rd = 0
SER Rd Rd = $FF
SBIW Rdl, K6 Rdh : Rdl = Rdh : Rdl - K6
MUL Rd, Rr R1 : R0 = Rd * Rr
MULS Rd, Rr R1 : R0 = Rd * Rr
MULSU Rd, Rr R1 : R0 = Rd * Rr
FMUL Rd, Rr R1 : R0 = (Rd * Rr) << 1
FMULS Rd, Rr R1 : R0 = (Rd * Rr) << 1
FMULSU Rd, Rr R1 : R0 = (Rd * Rr) << 1
分岐命令
RJMP k PC = PC + k + 1
IJMP PC = Z
EIJMP STACK = PC + 1, PC(15 : 0) = Z, PC(21 : 16) = EIND
JMP k PC = k
RCALL k STACK = PC + 1, PC = PC + k + 1
ICALL STACK = PC + 1, PC = Z
EICALL STACK = PC + 1, PC(15 : 0) = Z, PC(21 : 16) = EIND
CALL k STACK = PC + 2, PC = k
RET PC = STACK
RETI PC = STACK
CPSE Rd, Rr if (Rd == Rr) PC = PC 2 or 3
CP Rd, Rr Rd -Rr
CPC Rd, Rr Rd - Rr - C
CPI Rd, K8 Rd - K
SBRC Rr, b if (Rr(b) == 0) PC = PC + 2 or 3
SBRS Rr, b if (Rr(b) == 1) PC = PC + 2 or 3
SBIC P, b if (I/O(P, b) == 0) PC = PC + 2 or 3
SBIS P, b if (I/O(P, b) == 1) PC = PC + 2 or 3
BRBC s, k if (SREG(s) == 0) PC = PC + k + 1
BRBS s, k if (SREG(s) == 1) PC = PC + k + 1
BREQ k if (Z == 1) PC = PC + k + 1
BRNE k if (Z == 0) PC = PC + k + 1
BRCS k if (C == 1) PC = PC + k + 1
BRCC k if (C == 0) PC = PC + k + 1
BRSH k if (C == 0) PC = PC + k + 1
BRLO k if (C == 1) PC = PC + k + 1
BRMI k if (N == 1) PC = PC + k + 1
BRPL k if (N == 0) PC = PC + k + 1
BRGE k if (S == 0) PC = PC + k + 1
BRLT k if (S == 1) PC = PC + k + 1
BRHS k if (H == 1) PC = PC + k + 1
BRHC k if (H == 0) PC = PC + k + 1
BRTS k if (T == 1) PC = PC + k + 1
BRTC k if (T == 0) PC = PC + k + 1
BRVS k if (V == 1) PC = PC + k + 1
BRVC k if (V == 0) PC = PC + k + 1
BRIE k if (I == 1) PC = PC + k + 1
BRID k if (I == 0) PC = PC + k + 1
補足
レジスタは、r0からr31の32個
命令長は、2バイト。rjmpとrcallは、相対アドレス
ｘｙｚレジスタは、r26:r27,r28:r29,r30:r31
r0からr15は、ldi,cpiできない
sramにプログラムは、置けない。