|
Voici un tableau de référence des différents
instructions du microprocesseur 6502:
| ADC |
ADC n |
69h nnh |
A ← A+n+C |
| ADC |
ADC pq |
6Dh qqh pph |
A ← A+(pq)+C |
| ADC |
ADC q |
65h qqh |
A ← A+(oq)+C |
| ADC |
ADC pq,X |
7Dh qqh pph |
A ← A+(pq+X)+C |
| ADC |
ADC pq,Y |
79h qqh pph |
A ← A+(pq+Y)+C |
| ADC |
ADC q,X |
75h qqh |
A ← A+(oq+X)+C |
| ADC |
ADC d,X |
61h ddh |
l ← (od+X)
h ← (od+X+1)
A ← A+(hl)+C |
| ADC |
ADC d,Y |
71h ddh |
l ← (od)
h ← (od+1)
A ← A+(hl)+C |
| AND |
AND n |
29h nnh |
A ← A ∩ n |
| AND |
AND pq |
2Dh qqh pph |
A ← A ∩ (pq) |
| AND |
AND q |
25h qqh |
A ← A ∩ (oq) |
| AND |
AND pq,X |
3Dh qqh pph |
A ← A ∩ (pq+X) |
| AND |
AND pq,Y |
39h qqh pph |
A ← A ∩ (pq+Y) |
| AND |
AND q,X |
35h qqh |
A ← A ∩ (oq+X) |
| AND |
AND d,X |
21h ddh |
l ← (od+X)
h ← (od+X+1)
A ← A ∩ (hl) |
| AND |
AND d,Y |
31h ddh |
l ← (od)
h ← (od+1)
A ← A ∩ (hl+Y) |
| ASL |
ASL |
0Ah |
C ← 7 ← 0 ← 0 |
| ASL |
ASL pq |
0Eh qqh pph |
p ↔ q |
| ASL |
ASL q |
06h qqh |
o ↔ q |
| ASL |
ASL pq,X |
1Eh qqh pph |
p ↔ q + X |
| ASL |
ASL q,X |
16h qqh |
o ↔ q + X |
| BCC |
BCC e |
90h eeh |
SI C = 0 ALORS
PC ← PC + 2+e
FIN SI
SI C = 1 ALORS
PC ← PC + 2
FIN SI |
| BCS |
BCS e |
B0h eeh |
SI C = 1 ALORS
PC ← PC + 2+e
FIN SI
SI C = 0 ALORS
PC ← PC + 2
FIN SI |
| BEQ |
BEQ e |
F0h eeh |
SI Z = 1 ALORS
PC ← PC + 2+e
FIN SI
SI Z = 0 ALORS
PC ← PC + 2
FIN SI |
| BNE |
BNE e |
D0h eeh |
SI Z = 0 ALORS
PC ← PC + 2+e
FIN SI
SI Z = 1 ALORS
PC ← PC + 2
FIN SI |
| BMI |
BMI e |
30h eeh |
SI N = 1 ALORS
PC ← PC + 2+e
FIN SI
SI N = 0 ALORS
PC ← PC + 2
FIN SI |
| BPL |
BPL e |
10h eeh |
SI N = 0 ALORS
PC ← PC + 2+e
FIN SI
SI N = 1 ALORS
PC ← PC + 2
FIN SI |
| BVC |
BVC e |
50h eeh |
SI V = 0 ALORS
PC ← PC + 2+e
FIN SI
SI V = 1 ALORS
PC ← PC + 2
FIN SI |
| BVS |
BVS e |
70h eeh |
SI V = 1 ALORS
PC ← PC + 2+e
FIN SI
SI V = 0 ALORS
PC ← PC + 2
FIN SI |
| BIT |
BIT pq |
2Ch qqh pph |
Z ← A ∩ (pq)
N=(pq)7
V ← (pq)6 |
| BIT |
BIT q |
24h qqh |
Z ← A ∩ (pq)
N ← (oq)7
V ← (oq)6 |
| BRK |
BRK q |
00h |
PC ← PC+2
(SP)=PCh
SP ← SP-1
(SP) ← PCb
SP ← SP-1
(SP) ← P
SP ← SP-1
PCb ← (FFFE)
PCh ← (FFFE) |
| CLC |
CLC |
18h |
C ← 0 |
| CLD |
CLD |
D8h |
D ← 0 |
| CLI |
CLI |
58h |
I ← 0 |
| CLV |
CLV |
B8h |
V ← 0 |
| CMP |
CMP n |
C9h nnh |
A = n |
| CMP |
CMP pq |
CDh qqh pph |
A = (pq) |
| CMP |
CMP q |
C5h qqh |
A = (oq) |
| CMP |
CMP pq,X |
DDh qqh pph |
A = (pq+X) |
| CMP |
CMP pq,Y |
D9h qqh pph |
A = (pq+Y) |
| CMP |
CMP q,X |
D5h qqh |
A = (oq+X) |
| CMP |
CMP d,X |
C1h ddh |
l ← (od+X)
h ← (od+X+1)
A = (hl) |
| CMP |
CMP d,Y |
D1h ddh |
l ← (od)
h ← (od+1)
A = (hl+Y) |
| CPX |
CPX n |
E0h nnh |
X = n |
| CPX |
CPX pq |
ECh qqh pph |
X = (pq) |
| CPX |
CPX q |
E4h qqh |
X = (oq) |
| CPY |
CPY n |
C0h nnh |
Y = n |
| CPY |
CPY pq |
CCh qqh pph |
Y = (pq) |
| CPY |
CPY q |
C4h qqh |
Y = (oq) |
| DEC |
DEC pq |
CEh qqh pph |
(pq) ← (pq) - 1 |
| DEC |
DEC q |
C6h qqh |
(oq) ← (oq) - 1 |
| DEC |
DEC pq,X |
DEh qqh pph |
(pq+X) ← (pq+X) - 1 |
| DEC |
DEC q,X |
D6h qqh |
(oq+X) ← (oq+X) - 1 |
| DEX |
DEX |
CAh |
X ← X - 1 |
| DEY |
DEY |
88h |
Y ← Y - 1 |
| EOR |
EOR n |
49h nnh |
A ← A ^ n |
| EOR |
EOR pq |
4Dh qqh pph |
A ← A ^ (pq) |
| EOR |
EOR q |
45h qqh |
A ← A ^ (oq) |
| EOR |
EOR pq,X |
5Dh qqh pph |
A ← A ^ (pq+X) |
| EOR |
EOR pq,Y |
59h qqh pph |
A ← A ^ (pq+Y) |
| EOR |
EOR q,X |
55h qqh |
A ← A ^ (oq+X) |
| EOR |
EOR d,X |
41h ddh |
l ← (od+X)
h ← (od+X+1)
A ← A ^ (hl) |
| EOR |
EOR d,Y |
51h ddh |
l ← (od)
h ← (od+1)
A ← A ^ (hl+Y) |
| INC |
INC pq |
EEh qqh pph |
(pq) ← (pq) + 1 |
| INC |
INC q |
E6h qqh |
(oq) ← (oq) + 1 |
| INC |
INC pq,X |
FEh qqh pph |
(pq+X) ← (pq+X) + 1 |
| INC |
INC q,X |
F6h qqh |
(oq+X) ← (oq+X) + 1 |
| INX |
INX |
E8h |
X ← X + 1 |
| INY |
INY |
C8h |
Y ← Y + 1 |
| JMP |
JMP pq |
4Ch qqh pph |
PC ← pq |
| JMP |
JMP pq,IND |
6Ch qqh pph |
l ← (pq)
h ← (pq+1)
PC ← hl |
| JSR |
JSR pq |
20h qqh pph |
PC ← PC + 2
(SP) ← PCh
SP ← SP - 1
(SP) ← PCb
SP ← SP - 1
PC ← pq |
| LDA |
LDA n |
A9h nnh |
A ← n |
| LDA |
LDA pq |
ADh qqh pph |
A ← (pq) |
| LDA |
LDA q |
A5h qqh |
A ← (oq) |
| LDA |
LDA pq,X |
BDh qqh pph |
A ← (pq+X) |
| LDA |
LDA pq,Y |
B9h qqh pph |
A ← (pq+Y) |
| LDA |
LDA q,X |
B5h qqh |
A ← (oq+X) |
| LDA |
LDA d,X |
A1h ddh |
l ← (od+X)
h ← (od+X+1)
A ← (hl) |
| LDA |
LDA d,Y |
B1h ddh |
l ← (od)
h ← (od+1)
A ← (hl+Y) |
| LDX |
LDX n |
A2h nnh |
X ← n |
| LDX |
LDX pq |
AEh qqh pph |
X ← (pq) |
| LDX |
LDX q |
A6h qqh |
X ← (oq) |
| LDX |
LDX pq,Y |
BEh qqh pph |
X ← (pq+Y) |
| LDX |
LDX q,Y |
B6h qqh |
X ← (oq+Y) |
| LDY |
LDY n |
A0h nnh |
Y ← n |
| LDY |
LDY pq |
ACh qqh pph |
Y ← (pq) |
| LDY |
LDY q |
A4h qqh |
Y ← (oq) |
| LDY |
LDY pq,X |
BCh qqh pph |
Y ← (pq+X) |
| LDY |
LDY q,X |
B4h qqh |
Y ← (oq+X) |
| LSR |
LSR |
4Ah |
0 → 7 → 0 → C |
| LSR |
LSR pq |
4Eh qqh pph |
p ↔ q |
| LSR |
LSR q |
46h qqh |
o ↔ q |
| LSR |
LSR pq,X |
5Eh qqh pph |
p ↔ q + X |
| LSR |
LSR q,X |
56h qqh |
o ↔ q + X |
| NOP |
NOP |
EAh |
|
| ORA |
ORA n |
09h nnh |
A ← A U n |
| ORA |
ORA pq |
0Dh qqh pph |
A ← A U (pq) |
| ORA |
ORA q |
05h qqh |
A ← A U (oq) |
| ORA |
ORA pq,X |
1Dh qqh pph |
A ← A U (pq+X) |
| ORA |
ORA pq,Y |
19h qqh pph |
A ← A U (pq+Y) |
| ORA |
ORA q,X |
15h qqh |
A ← A U (oq+X) |
| ORA |
ORA d,X |
01h ddh |
l ← (od+X)
h ← (od+X+1)
A ← A U (hl) |
| ORA |
ORA d,Y |
11h ddh |
l ← (od)
h ← (od+1)
A ← A U (hl+Y) |
| PHA |
PHA |
48h |
(SP) ← A
SP ← SP - 1 |
| PHP |
PHP |
08h |
(SP) ← P
SP ← SP - 1 |
| PLA |
PLA |
68h |
(SP) ← A
SP ← SP + 1 |
| PLP |
PLP |
28h |
(SP) ← P
SP ← SP + 1 |
| ROL |
ROL |
2Ah |
A ↔ C ← 7 ↔ 0 |
| ROL |
ROL pq |
2Eh qqh pph |
pq ← 7 ↔ 0 |
| ROL |
ROL q |
26h qqh |
oq ← 7 ↔ 0 |
| ROL |
ROL pq,X |
3Eh qqh pph |
pq ← 7 ↔ 0 |
| ROL |
ROL q,X |
36h qqh |
oq ← 7 ↔ 0 |
| ROR |
ROR |
6Ah |
A ↔ C ← 7 ↔ 0 |
| ROR |
ROR pq |
6Eh qqh pph |
pq ← 7 ↔ 0 |
| ROR |
ROR q |
66h qqh |
oq ← 7 ↔ 0 |
| ROR |
ROR pq,X |
7Eh qqh pph |
pq ← 7 ↔ 0 |
| ROR |
ROR q,X |
76h qqh |
oq ← 7 ↔ 0 |
| RTI |
RTI |
40h |
P ← (SP)
SP ← SP + 1
PCb ← (SP)
SP ← SP + 1
PCh ← (SP)
SP ← SP + 1 |
| RTS |
RTS |
60h |
PCb ← (SP)
SP ← SP + 1
PCh ← (SP)
SP ← SP + 1
PC ← PC + 1 |
| SBC |
SBC n |
E9h nnh |
A ← A - n - C |
| SBC |
SBC pq |
E9h qqh pph |
A ← A - (pq) - C |
| SBC |
SBC oq |
E5h qqh |
A ← A - (oq) - C |
| SBC |
SBC pq,X |
FDh qqh pph |
A ← A - (pq+X) - C |
| SBC |
SBC pq,Y |
F9h qqh pph |
A ← A - (pq+Y) - C |
| SBC |
SBC q,X |
F5h qqh |
A ← A - (oq+X) - C |
| SBC |
SBC d,X |
E1h ddh |
A ← A - (od+X) - C
A ← A - (od+X+1) - C
A ← A - (hl) - C |
| SBC |
SBC d,Y |
F1h ddh |
A ← A - (od) - C
A ← A - (od+1) - C
A ← A - (hl+Y) - C |
| SEC |
SEC |
38h |
C ← 1 |
| SED |
SED |
F8h |
D ← 1 |
| SEI |
SEI |
78h |
I ← 1 |
| STA |
STA pq |
8Dh qqh pph |
(pq) ← A |
| STA |
STA oq |
85h qqh |
(oq) ← A |
| STA |
STA pq,X |
9Dh qqh pph |
(pq+X) ← A |
| STA |
STA pq,Y |
99h qqh pph |
(pq+Y) ← A |
| STA |
STA oq,X |
95h qqh |
(oq+X) ← A |
| STA |
STA oq,X |
81h ddh |
l ← (od+X)
h ← (od+X+1)
(hl) ← A |
| STA |
STA oq,Y |
91h ddh |
l ← (od)
h ← (od+1)
(hl+Y) ← A |
| STX |
STX pq |
8Eh qqh pph |
(pq) ← X |
| STX |
STX oq |
86h qqh |
(oq) ← X |
| STX |
STX q,Y |
96h qqh |
(oq+Y) ← X |
| STY |
STY pq |
8Ch qqh pph |
(pq) ← Y |
| STY |
STY oq |
84h qqh |
(oq) ← Y |
| STY |
STY q,X |
94h qqh |
(oq+X) ← Y |
| TAX |
TAX |
AAh |
X ← A |
| TAY |
TAY |
A8h |
Y ← A |
| TSX |
TSX |
BAh |
X ← SP |
| TXA |
TXA |
8Ah |
A ← X |
| TXS |
TXS |
9Ah |
SP ← X |
| TYA |
TYA |
98h |
A ← Y |
|
