Anexa 4
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
LD r, r, |
r ¬ r, |
01 r r, |
|||||||
|
LD r, n |
r ¬ n |
00 r 110 n |
|||||||
|
LD r, (HL) |
r ¬ (HL) |
01 r 110 |
|||||||
|
LD r, (IX+d) |
r ¬ (IX+d) |
11011101 01 r 101 d |
DD |
||||||
|
LD r, (IY+d) |
r ¬ (IY+d) |
11111101 01 r 110 d |
FD |
||||||
|
LD (HL), r |
(HL) ¬ r |
01110 r |
|||||||
|
LD (IX+d), r |
(IX+d) ¬ r |
11011101 01110 r d |
DD |
||||||
|
LD (IY+d), r |
(IY+d) ¬ r |
11111101 01110 r d |
FD |
||||||
|
LD (HL), n |
(HL) ¬ n |
00110110 n |
36 |
||||||
|
LD (IX+d), n |
(IX+d) ¬ n |
11011101 00110110 d n |
DD 36 |
||||||
|
LD (IY+d), n |
(IY+d) ¬ n |
11111101 00110110 d n |
FD 36 |
||||||
|
LD A, (BC) |
A ¬ (BC) |
00001010 |
0A |
||||||
|
LD A, (DE) |
A ¬ (DE) |
00011010 |
1A |
||||||
|
LD A, (nn) |
A ¬ (nn) |
00111010 n n |
3A |
||||||
|
LD (BC), A |
(BC) ¬ A |
00000010 |
02 |
||||||
|
LD (DE), A |
(DE) ¬ A |
00010010 |
12 |
||||||
|
LD (nn), A |
(nn) ¬ A |
00110010 n n |
32 |
||||||
|
LD A, I |
A ¬ I |
11101101 01010111 |
ED 57 |
|
|
0 |
IFF |
0 |
|
|
LD A, R |
A ¬ R |
11101101 01011111 |
ED 5F |
|
|
0 |
IFF |
0 |
|
|
LD I, A |
I ¬ A |
11101101 01000111 |
ED 47 |
||||||
|
LD R, A |
R ¬ A |
11101101 01001111 |
ED 4F |
||||||
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicator ii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
LD dd, nn |
dd ¬ nn |
00dd0001 n n |
|||||||
|
LD IX, nn |
IX ¬ nn |
11011101 00100001 n n |
DD 21 |
||||||
|
LD IY, nn |
IY ¬ nn |
11111101 00100001 n n |
FD 21 |
||||||
|
LD HL, (nn) |
H ¬ (nn+1)L ¬ (nn) |
00101010 n n |
2A |
||||||
|
LD dd, (nn) |
ddH ¬ (nn+1)ddL ¬ (nn) |
11101101 01dd1011 n n |
ED |
||||||
|
LD IX, (nn) |
IXH ¬ (nn+1)IXL ¬ (nn) |
11011101 00101010 n n |
DD 2A |
||||||
|
LD IY, (nn) |
IYH ¬ (nn+1)IYL ¬ (nn) |
11111101 00101010 n n |
FD 2A |
||||||
|
LD (nn), HL |
( nn+1) ¬ H(nn) ¬ L |
00100010 n n |
22 |
||||||
|
LD (nn), dd |
( nn+1) ¬ ddH(nn) ¬ ddL |
11101101 01dd0011 n n |
ED |
||||||
|
LD (nn), IX |
( nn+1) ¬ IXH(nn) ¬ IXL |
11011101 00100010 n n |
DD 22 |
||||||
|
LD (nn), IY |
( nn+1) ¬ IYH(nn) ¬ IYL |
11111101 00100010 n n |
FD 22 |
||||||
|
LD SP, HL |
SP ¬ HL |
11111001 |
F9 |
||||||
|
LD SP, IX |
SP ¬ IX |
11011101 11111001 |
DD F9 |
||||||
|
LD SP, IY |
SP ¬ IY |
11111101 11111001 |
FD F9 |
||||||
|
PUSH qq |
(SP-2) ¬ qqL(SP-1) ¬ qqHSP ¬ SP-2 |
11qq0101 |
|||||||
|
PUSH IX |
(SP-2) ¬ IXL(SP-1) ¬ IXHSP ¬ SP-2 |
11011101 11100101 |
DD E5 |
||||||
|
PUSH IY |
(SP-2) ¬ IYL(SP-1) ¬ IYHSP ¬ SP-2 |
11111101 11100101 |
FD E5 |
||||||
|
POP qq |
qqH ¬ (SP+1)qqL ¬ SPSP ¬ SP+2 |
11qq0001 |
|||||||
|
POP IX |
IXH ¬ (SP+1)IXL ¬ SPSP ¬ SP+2 |
11011101 11100001 |
DD E1 |
||||||
|
POP IY |
IYH ¬ (SP+1)IYL ¬ SPSP ¬ SP+2 |
11111101 11100001 |
FD E1 |
||||||
Schimburi între registre, transfer de blocuri, căutări
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de con diţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
EX DE, HL |
DE « HL |
11101011 |
EB |
||||||
|
EX AF, AF’ |
AF « AF’ |
00001000 |
08 |
||||||
|
EXX |
BC « BC’DE « DE’HL « HL’ |
11011001 |
D9 |
||||||
|
EX (SP), HL |
H « (SP+1)L « (SP) |
11100011 |
E3 |
||||||
|
EX (SP), IX |
IXH « (SP+1)IXL « (SP) |
11011101 11100011 |
DD E3 |
||||||
|
EX (SP), IY |
IYH « (SP+1)IYL « (SP) |
11111101 11100011 |
FD E3 |
||||||
|
LDI |
(DE) ¬ (HL)DE ¬ DE+1HL ¬ HL+1BC ¬ BC-1 |
11101101 10100000 |
ED A0 |
0 |
|
0 |
|||
|
LDIR |
(DE) ¬ (HL)DE ¬ DE+1HL ¬ HL+1BC ¬ BC-1se repetă până când BC=0 |
11101101 10110000 |
ED B0 |
0 |
0 |
0 |
|||
|
LDD |
(DE) ¬ (HL)DE ¬ DE-1HL ¬ HL-1BC ¬ BC-1 |
11101101 10101000 |
ED A8 |
0 |
|
0 |
|||
|
LDDR |
(DE) ¬ (HL)DE ¬ DE-1HL ¬ HL-1BC ¬ BC-1se repetă până când BC=0 |
11101101 10111000 |
ED B8 |
0 |
0 |
0 |
|||
|
CPI |
A - (HL) HL ¬ HL+1BC ¬ BC-1 |
11101101 10100001 |
ED A1 |
|
|
|
|
1 |
|
|
CPIR |
A - (HL) HL ¬ HL+1BC ¬ BC-1se repetă până când A=(HL) sau BC=0 |
11101101 10110001 |
ED B1 |
|
|
|
|
1 |
|
|
CPD |
A - (HL) HL ¬ HL-1BC ¬ BC-1 |
11101101 10101001 |
ED A9 |
|
|
|
|
1 |
|
|
CPIR |
A - (HL) HL ¬ HL-1BC ¬ BC-1se repetă până când A=(HL) s au BC=0 |
11101101 10111001 |
ED B9 |
|
|
|
|
1 |
|
Operaţii aritmetice şi logice pe 8 biţi
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
ADD A, r |
A ¬ A+r |
10000 r |
|
|
|
V |
0 |
|
|
|
ADD A, n |
A ¬ A+n |
11000110 n |
C6 |
|
|
|
V |
0 |
|
|
ADD A, (HL) |
A ¬ A+(HL) |
10000110 |
86 |
|
|
|
V |
0 |
|
|
ADD A, (IX+d) |
A ¬ A+(IX+d) |
11011101 10000110 d |
DD 86 |
|
|
|
V |
0 |
|
|
ADD A, (IY+d) |
A ¬ A+(IY+d) |
11111101 10000110 d |
FD 86 |
|
|
|
V |
0 |
|
|
ADC A, r |
A ¬ A+r+CY |
10001 r |
|
|
|
V |
0 |
|
|
|
ADC A, n |
A ¬ A+n+CY |
11001110 n |
CE |
|
|
|
V |
0 |
|
|
ADC A, (HL) |
A ¬ A+(HL) +CY |
10001110 |
8E |
|
|
|
V |
0 |
|
|
ADC A, (IX+d) |
A ¬ A+(IX+d) +CY |
11011101 10001110 d |
DD 8E |
|
|
|
V |
0 |
|
|
ADC A, (IY+d) |
A ¬ A+(IY+d) +CY |
11111101 10001110 d |
FD 8E |
|
|
|
V |
0 |
|
|
SUB r |
A ¬ A-r |
10010 r |
|
|
|
V |
1 |
|
|
|
SUB n |
A ¬ A-n |
11010110 n |
D6 |
|
|
|
V |
1 |
|
|
SUB (HL) |
A ¬ A-(HL) |
10010110 |
96 |
|
|
|
V |
1 |
|
|
SUB (IX+d) |
A ¬ A-(IX+d) |
11011101 10010110 d |
DD 96 |
|
|
|
V |
1 |
|
|
SUB (IY+d) |
A ¬ A-(IY+d) |
11111101 10010110 d |
FD 96 |
|
|
|
V |
1 |
|
|
SBC A, r |
A ¬ A-r-CY |
10011 r |
|
|
|
V |
1 |
|
|
|
SBC A, n |
A ¬ A-n-CY |
11011110 n |
DE |
|
|
|
V |
1 |
|
|
SBC A, (HL) |
A ¬ A-(HL)-CY |
10011110 |
9E |
|
|
|
V |
1 |
|
|
SBC A, (IX+d) |
A ¬ A-(IX+d) -CY |
11011101 10011110 d |
DD 9E |
|
|
|
V |
1 |
|
|
SBC A, (IY+d) |
A ¬ A-(IY+d) -CY |
11111101 10011110 d |
FD 9E |
|
|
|
V |
1 |
|
|
AND r |
A ¬ AŮr |
10100 r |
|
|
1 |
P |
0 |
0 |
|
|
AND n |
A ¬ AŮn |
11100110 n |
E6 |
|
|
1 |
P |
0 |
0 |
|
AND (HL) |
A ¬ AŮ (HL) |
10100110 |
A6 |
|
|
1 |
P |
0 |
0 |
|
AND (IX+d) |
A ¬ AŮ (IX+d) |
11011101 10100110 d |
DD A6 |
|
|
1 |
P |
0 |
0 |
|
AND (IY+d) |
A ¬ AŮ (IY+d) |
11111101 10100110 d |
FD A6 |
|
|
1 |
P |
0 |
0 |
|
OR r |
A ¬ AÚr |
10110 r |
|
|
0 |
P |
0 |
0 |
|
|
OR n |
A ¬ AÚn |
11110110 n |
F6 |
|
|
0 |
P |
0 |
0 |
|
OR (HL) |
A ¬ AÚ (HL) |
10110110 |
B6 |
|
|
0 |
P |
0 |
0 |
|
OR (IX+d) |
A ¬ AÚ (IX+d) |
11011101 10110110 d |
DD B6 |
|
|
0 |
P |
0 |
0 |
|
OR (IY+d) |
A ¬ AÚ (IY+d) |
11111101 10110110 d |
FD B6 |
|
|
0 |
P |
0 |
0 |
|
XOR r |
A ¬ AĹr |
10101 r |
|
|
0 |
P |
0 |
0 |
|
|
XOR n |
A ¬ AĹn |
11101110 n |
EE |
|
|
0 |
P |
0 |
0 |
|
XOR (HL) |
A ¬ AĹ (HL) |
10101110 |
AE |
|
|
0 |
P |
0 |
0 |
|
XOR (IX+d) |
A ¬ AĹ (IX+d) |
11011101 10101110 d |
DD AE |
|
|
0 |
P |
0 |
0 |
|
XOR (IY+d) |
A ¬ AĹ (IY+d) |
11111101 10101110 d |
FD AE |
|
|
0 |
P |
0 |
0 |
|
CP r |
A - r |
10111 r |
|
|
|
V |
1 |
|
|
|
CP n |
A - n |
11111110 n |
FE |
|
|
|
V |
1 |
|
|
CP (HL) |
A - (HL) |
10111110 |
BE |
|
|
|
V |
1 |
|
|
CP (IX+d) |
A - (IX+d) |
11011101 10111110 d |
DD BE |
|
|
|
V |
1 |
|
|
CP (IY+d) |
A - (IY+d) |
11111101 10111110 d |
FD BE |
|
|
|
V |
1 |
|
|
INC r |
r ¬ r+1 |
00 r 100 |
|
|
|
V |
0 |
||
|
INC (HL) |
(HL) ¬ (HL)+1 |
00110100 |
34 |
|
|
|
V |
0 |
|
|
INC (IX+d) |
(IX+d) ¬ (IX+d) + 1 |
11011101 00110100 d |
DD 34 |
|
|
|
V |
0 |
|
|
INC (IY+d) |
(IY+d) ¬ (IY+d) + 1 |
11111101 00110100 d |
FD 34 |
|
|
|
V |
0 |
|
|
DEC r |
r ¬ r-1 |
00 r 101 |
|
|
|
V |
1 |
||
|
DEC (HL) |
(HL) ¬ (HL)-1 |
00110101 |
35 |
|
|
|
V |
1 |
|
|
DEC (IX+d) |
(IX+d) ¬ (IX+d) - 1 |
11011101 00110101 d |
DD 35 |
|
|
|
V |
1 |
|
|
DEC (IY+d) |
(IY+d) ¬ (IY+d) - 1 |
11111101 00110101 d |
FD 35 |
|
|
|
V |
1 |
|
Operaţii aritmetice generale şi operaţii de comandă
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
DAA |
Con verteşte conţinutul lui A în format BCD după adunări sau scăderi cu operanzi BCD |
00100111 |
27 |
|
|
|
P |
|
|
|
CPL |
A ¬ /A |
00101111 |
2F |
1 |
1 |
||||
|
NEG |
A ¬ 0 - A |
11101101 01000100 |
ED 44 |
|
|
|
V |
1 |
|
|
CCF |
CY ¬ /CY |
00111111 |
3F |
x |
0 |
|
|||
|
SCF |
CY ¬ 1 |
00110111 |
37 |
0 |
0 |
1 |
|||
|
NOP |
00000000 |
00 |
|||||||
|
HALT |
Oprire CPU |
01110110 |
76 |
||||||
|
DI |
IFF 1,2 ¬ 0 |
11110011 |
F3 |
||||||
|
EI |
IFF 1,2 ¬ 0 |
11111011 |
FB |
||||||
|
IM 0 |
Stabilire mod întreruperi 0 |
11101101 01000110 |
ED 46 |
||||||
|
IM 1 |
Stabilire mod întreruperi 1 |
11101101 01010110 |
ED 56 |
||||||
|
IM 2 |
Stabilire mod întreruperi 2 |
11101101 01011110 |
ED 5E |
||||||
Operaţii aritmetice pe 16 biţi
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
ADD HL, dd |
HL ¬ HL+dd |
00dd1001 |
x |
0 |
|
||||
|
ADC HL, dd |
HL ¬ HL+dd +CY |
11101101 01dd1010 |
ED |
|
|
x |
V |
0 |
|
|
SBC HL, dd |
HL ¬ HL-dd-CY |
11101101 01dd0010 |
ED |
|
|
x |
V |
1 |
|
|
ADD IX, ss |
IX ¬ IX+ss |
11011101 01ss1001 |
DD |
x |
0 |
|
|||
|
ADD IY, pp |
IY ¬ IY+pp |
11111101 00pp1001 |
FD |
x |
0 |
|
|||
|
INC dd |
dd ¬ dd+1 |
00dd0011 |
|||||||
|
INC IX |
IX ¬ IX+1 |
11011101 00100011 |
DD 23 |
||||||
|
INC IY |
IY ¬ IY+1 |
11111101 00100011 |
FD 23 |
||||||
|
DEC dd |
dd ¬ dd - 1 |
00dd1011 |
|||||||
|
DEC IX |
IX ¬ IX - 1 |
11011101 00101011 |
DD 2B |
||||||
|
DEC IY |
IY ¬ IY - 1 |
11111101 00101011 |
FD 2B |
||||||
Operaţii aritmetice pe 16 biţi
|
Mnemonica Z80Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
|||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
RLCA |
CY ¬A7¬A0 ¬A7 |
00000111 |
07 |
0 |
0 |
|
|||
|
RLA |
CY ¬A7¬A0 ¬CY |
00010111 |
17 |
0 |
0 |
|
|||
|
RRCA |
00001111 |
0F |
0 |
0 |
|
||||
|
RRA |
00011111 |
1F |
0 |
0 |
|
||||
|
RLC r |
11001011 00000 r |
CB |
|
|
0 |
P |
0 |
|
|
|
RLC (HL) |
11001011 00000110 |
CB 06 |
|
|
0 |
P |
0 |
|
|
|
RLC (IX+d) |
11011101 11001011 d 00000110 |
DD CB 06 |
|
|
0 |
P |
0 |
|
|
|
RLC (IY+d) |
11111101 11001011 d 00000110 |
FD CB 06 |
|
|
0 |
P |
0 |
|
|
|
RL r |
11001011 00010 r |
CB |
|
|
0 |
P |
0 |
|
|
|
RL (HL) |
11001011 00010110 |
CB 16 |
|
|
0 |
P |
0 |
|
|
|
RL (IX+d) |
11011101 11001011 d 00010110 |
DD CB 16 |
|
|
0 |
P |
0 |
|
|
|
RL (IY+d) |
11111101 11001011 d 00010110 |
FD CB 16 |
|
|
0 |
P |
0 |
|
|
|
RRC r |
11001011 00001 r |
CB |
|
|
0 |
P |
0 |
|
|
|
RRC (HL) |
11001011 00001110 |
CB 0E |
|
|
0 |
P |
0 |
|
|
|
RRC (IX+d) |
11011101 11001011 d 00001110 |
DD CB 1E |
|
|
0 |
P |
0 |
|
|
|
RRC (IY+d) |
11111101 11001011 d 00001110 |
FD CB 1E |
|
|
0 |
P |
0 |
|
|
|
RR r |
11001011 00011 r |
CB |
|
|
0 |
P |
0 |
|
|
|
RR (HL) |
11001011 00011110 |
CB 1E |
|
|
0 |
P |
0 |
|
|
|
RR (IX+d) |
11011101 11001011 d 00011110 |
DD CB 1E |
|
|
0 |
P |
0 |
|
|
|
RR (IY+d) |
11111101 11001011 d 00011110 |
FD CB 1E |
|
|
0 |
P |
0 |
|
|
|
SLA r |
11001011 00100 r |
CB |
|
|
0 |
P |
0 |
|
|
|
SLA (HL) |
11001011 00100110 |
CB 26 |
|
|
0 |
P |
0 |
|
|
|
SLA (IX+d) |
11011101 11001011 d 00100110 |
DD CB 26 |
|
|
0 |
P |
0 |
|
|
|
SLA (IY+d) |
11111101 11001011 d 00100110 |
FD CB 26 |
|
|
0 |
P |
0 |
|
|
|
SRA r |
11001011 00101 r |
CB |
|
|
0 |
P |
0 |
|
|
|
SRA (HL) |
11001011 00101110 |
CB 2E |
|
|
0 |
P |
0 |
|
|
|
SRA (IX+d) |
11011101 11001011 d 00101110 |
DD CB 2E |
|
|
0 |
P |
0 |
|
|
|
SRA (IY+d) |
11111101 11001011 d 00101110 |
FD CB 2E |
|
|
0 |
P |
0 |
|
|
|
SRL r |
11001011 00111 r |
CB |
|
|
0 |
P |
0 |
|
|
|
SRL (HL) |
11001011 00111110 |
CB 3E |
|
|
0 |
P |
0 |
|
|
|
SRL (IX+d) |
11011101 11001011 d 00111110 |
DD CB 3E |
|
|
0 |
P |
0 |
|
|
|
SRL (IY+d) |
11111101 11001011 d 00111110 |
FD CB 3E |
|
|
0 |
P |
0 |
|
|
|
RLD |
11101101 01101111 |
ED 6F |
|
|
0 |
P |
0 |
||
|
RRD |
11101101 01100111 |
ED 67 |
|
|
0 |
P |
0 |
||
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
BIT b, r |
Z ¬ /rb |
11001011 01 b r |
CB |
x |
|
1 |
x |
0 |
|
|
BIT b, (HL) |
Z ¬ /(HL)b |
11001011 01 b 110 |
CB |
x |
|
1 |
x |
0 |
|
|
BIT b, (IX+d) |
Z ¬ /(IX+d)b |
11011101 11001011 d 01 b 110 |
DD CB |
x |
|
1 |
x |
0 |
|
|
BIT b, (IY+d) |
Z ¬ /(IY+d)b |
11111101 11001011 d 01 b 110 |
FD CB |
x |
|
1 |
x |
0 |
|
|
SET b, r |
rb ¬ 1 |
11001011 11 b r |
CB |
||||||
|
SET b, (HL) |
(HL)b ¬ 1 |
11001011 11 b 110 |
CB |
||||||
|
SET b, (IX+d) |
(IX+d)b ¬ 1 |
11011101 11001011 d 11 b 110 |
DD CB |
||||||
|
SET b, (IY+d) |
(IY+d)b ¬ 1 |
11111101 11001011 d 11 b 110 |
FD CB |
||||||
|
RES b, r |
rb ¬ 0 |
11001011 10 b r |
CB |
||||||
|
RES b, (HL) |
(HL)b ¬ 0 |
11001011 10 b 110 |
CB |
||||||
|
RES b, (IX+d) |
(IX+d)b ¬ 0 |
11011101 11001011 d 10 b 110 |
DD CB |
||||||
|
RES b, (IY+d) |
(IY+d)b ¬ 0 |
11111101 11001011 d 10 b 110 |
FD CB |
||||||
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
JP nn |
PC ¬ nn |
11000011 n n |
C3 |
||||||
|
JP cc, nn |
dacă cc PC ¬ nnaltfel continuă |
11 cc 010 n n |
|||||||
|
JR e |
PC ¬ PC+e |
00011000 e - 2 |
18 |
||||||
|
JR C, e |
dacă C = 1 PC ¬ PC+ealtfel continuă |
00111000 e - 2 |
38 |
||||||
|
JR NC, e |
dacă C = 0 PC ¬ PC+ealtfel continuă |
00110000 e - 2 |
30 |
||||||
|
JR Z, e |
dacă Z = 1 PC ¬ PC+ealtfel continuă |
00101000 e - 2 |
28 |
||||||
|
JR NZ, e |
dacă Z = 0 PC ¬ PC+ealtfel continuă |
00100000 e – 2 |
20 |
||||||
|
JP (HL) |
PC ¬ HL |
11101001 |
E9 |
||||||
|
JP (IX) |
PC ¬ IX |
11011101 11101001 |
DD E9 |
||||||
|
JP (IY) |
PC ¬ IY |
11111101 11101001 |
FD E9 |
||||||
|
DJNZ e |
B ¬ B - 1dacă B <> 0 PC ¬ PC+ealtfel continuă |
00010000 e - 2 |
10 |
||||||
Apeluri de subrutine, reveniri, instrucţiuni de restart
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
CALL nn |
(SP-1) ¬ PCH(SP-2) ¬ PCLPC ¬ nn |
11001101 n n |
CD |
||||||
|
CALL cc, nn |
dacă cc=1 CALL nn altfel continuă |
11 cc 100 n n |
|||||||
|
RET |
PCH ¬ (SP)PCL ¬ (SP+1) |
11001001 |
C9 |
||||||
|
RET cc |
dacă cc=1 RET altfel continuă |
11 cc 000 |
|||||||
|
RETI |
Revenire din întrerupere |
11101101 01001101 |
ED 4D |
||||||
|
RETN |
Revenire din întrerupere nemascabilă |
11101101 01000101 |
ED 45 |
||||||
|
RST p |
(SP-1) ¬ PCH(SP-2) ¬ PCLPCH ¬ 0PCL ¬ p |
11 t 111 |
|||||||
|
Mnemonica Z80 |
Descrierea simbolică |
Cod obiect |
Indicatorii de condiţii |
||||||
|
Binar |
Hexa |
S |
Z |
H |
P/V |
N |
C |
||
|
IN A, (n) |
A ¬ (n) |
11011011 n |
DB |
||||||
|
IN r, (C) |
r ¬ (C) |
11101101 01 r 000 |
ED |
|
|
|
P |
0 |
|
|
INI |
(HL) ¬ (C)B ¬ B - 1HL ¬ HL + 1 |
11101101 10100010 |
ED A2 |
x |
|
x |
x |
|
x |
|
INIR |
(HL) ¬ (C)B ¬ B - 1HL ¬ HL + 1se repetă până când B=0 |
11101101 10110010 |
ED B2 |
x |
1 |
x |
x |
|
x |
|
IND |
(HL) ¬ (C)B ¬ B - 1HL ¬ HL - 1 |
11101101 10101010 |
ED AA |
x |
|
x |
x |
|
x |
|
INDR |
(HL) ¬ (C)B ¬ B - 1HL ¬ HL - 1se repetă până când B=0 |
11101101 10110010 |
ED BA |
x |
1 |
x |
x |
|
x |
|
OUT (n), A |
(n) ¬ A |
11010011 n |
D3 |
|
x |
||||
|
OUT (C), r |
(C) ¬ r |
11101101 01 r 001 |
ED |
|
x |
||||
|
OUTI |
(C) ¬ (HL)B ¬ B - 1HL ¬ HL + 1 |
11101101 10100011 |
ED A3 |
x |
|
x |
x |
|
x |
|
OTIR |
(C) ¬ (HL)B ¬ B - 1HL ¬ HL + 1se repetă până când B=0 |
11101101 10110011 |
ED B3 |
x |
1 |
x |
x |
|
x |
|
OUTD |
(C) ¬ (HL)B ¬ B - 1HL ¬ HL - 1 |
11101101 10101011 |
ED AB |
x |
|
x |
x |
|
x |
|
OTDR |
(C) ¬ (HL)B ¬ B - 1HL ¬ HL - 1se repetă până când B=0 |
11101101 10110011 |
ED BB |
x |
1 |
x |
x |
|
x |
|
r, r’ |
Registru |
b |
Bit testat |
|
|
000 |
B |
000 |
0 |
|
|
001 |
C |
001 |
1 |
|
|
010 |
D |
010 |
2 |
|
|
011 |
E |
011 |
3 |
|
|
100 |
H |
100 |
4 |
|
|
101 |
L |
101 |
5 |
|
|
111 |
A |
110 |
6 |
|
|
111 |
7 |
|
dd, qq, ss, pp |
Registre - dd |
Registre - qq |
Registre - ss |
Registre - pp |
|
00 |
BC |
BC |
BC |
BC |
|
01 |
DE |
DE |
DE |
DE |
|
10 |
HL |
HL |
IX |
IY |
|
11 |
SP |
AF |
SP |
SP |