8085 Reference
8085 Instruction Mnemonic Meanings
Data Transfer Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
MOV |
dreg, sreg |
MOVe |
. |
. |
. |
. |
MVI |
reg, byte |
MoVe Immediate |
. |
. |
. |
. |
MVX |
drp, srp |
MoVe eXtended-register (pseudo for high & low MOVs) |
. |
. |
. |
. |
LXI |
rp, word |
Load eXtended-register Immediate |
. |
. |
. |
. |
XCHG |
eXCHanGe hl with de |
. |
. |
. |
. | |
LDA |
addr |
LoaD Accumulator direct |
. |
. |
. |
. |
STA |
addr |
STore Accumulator direct |
. |
. |
. |
. |
LDAX |
B |
LoaD Accumulator indirect via eXtended-register Bc |
. |
. |
. |
. |
STAX |
B |
Store Accumulator indirect via eXtended-register Bc |
. |
. |
. |
. |
LDAX |
D |
LoaD Accumulator indirect via eXtended-register De |
. |
. |
. |
. |
STAX |
D |
Store Accumulator indirect via eXtended-register De |
. |
. |
. |
. |
LHLD |
addr |
Load HL Direct |
. |
. |
. |
. |
SHLD |
addr |
Store HL Direct |
. |
. |
. |
. |
LHLI |
Load HL Indirect via extended register de |
. |
. |
. |
. | |
SHLI |
Store HL Indirect via extended register de |
. |
. |
. |
. | |
Arithmetic Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
ADD |
reg |
ADD |
x |
x |
x |
x |
ADI |
byte |
ADd Immediate |
x |
x |
x |
x |
ADC |
reg |
ADd with Carry |
x |
x |
x |
x |
ACI |
byte |
Add with Carry Immediate |
x |
x |
x |
x |
SUB |
reg |
SUBtract |
x |
x |
x |
x |
SUI |
byte |
SUbtract Immediate |
x |
x |
x |
x |
SBB |
reg |
SuBtract with Borrow |
x |
x |
x |
x |
SBI |
byte |
Subtract with Borrow Immediate |
x |
x |
x |
x |
DAA |
Decimal Adjust Accumulator |
x |
x |
x |
x | |
INR |
reg |
INcrement Register |
x |
. |
x |
x |
INX |
rp |
INcrement eXtended-register |
. |
. |
. |
. |
DCR |
reg |
DeCrement Register |
x |
. |
x |
x |
DCX |
rp |
DeCrement eXtended-register |
. |
. |
. |
. |
DAD |
rp |
Dual-register ADd to hl |
. |
x |
. |
. |
HLMBC |
HL Minus BC |
x |
x |
h |
x | |
DEHL |
byte |
DE from HL plus byte |
. |
. |
. |
. |
DESP |
byte |
DE from SP plus byte |
. |
. |
. |
. |
Logical Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
CMP |
reg |
CoMPare |
x |
x |
x |
x |
CPI |
byte |
ComPare Immediate |
x |
x |
x |
x |
CMA |
CoMplement Accumulator |
. |
. |
. |
. | |
CMC |
CoMplement Carry |
. |
x |
. |
. | |
STC |
SeT Carry |
. |
1 |
. |
. | |
SHLR |
Shift HL Right |
. |
x |
. |
. | |
ANA |
reg |
ANd Accumulator |
x |
0 |
x |
x |
ANI |
byte |
ANd Immediate |
x |
0 |
x |
x |
ORA |
reg |
OR Accumulator |
x |
0 |
x |
x |
ORI |
byte |
OR Immediate |
x |
0 |
x |
x |
XRA |
reg |
eXclusive oR Accumulator |
x |
0 |
x |
x |
XRI |
byte |
eXclusive oR Immediate |
x |
0 |
x |
x |
RAL |
Rotate Accumulator Left through carry |
. |
x |
. |
. | |
RAR |
Rotate Accumulator Right through carry |
. |
x |
. |
. | |
RLC |
Rotate accumulator Left Circular |
. |
x |
. |
. | |
RRC |
Rotate accumulator Right Circular |
. |
x |
. |
. | |
RDEL |
Rotate DE Left through carry |
. |
x |
. |
. | |
Stack, Input/Output, & Machine Control Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
PUSH |
rp |
PUSH on stack |
. |
. |
. |
. |
POP |
rp |
POP off stack |
. |
. |
. |
. |
SPHL |
Stack Pointer from HL |
. |
. |
. |
. | |
XTHL |
eXchange Top of stack with HL |
. |
. |
. |
. | |
IN |
port |
INput from port |
. |
. |
. |
. |
OUT |
port |
OUTput to port |
. |
. |
. |
. |
DI |
Disable Interrupts |
. |
. |
. |
. | |
EI |
Enable Interrupts |
. |
. |
. |
. | |
RIM |
Read Interrupt Mask |
. |
. |
. |
. | |
SIM |
Set Interrupt Mask |
. |
. |
. |
. | |
NOP |
No OPeration |
. |
. |
. |
. | |
HLT |
HaLT |
. |
. |
. |
. | |
Branch Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
JMP |
label |
JuMP unconditional |
. |
. |
. |
. |
JZ |
label |
Jump if Zero |
. |
. |
. |
. |
JNZ |
label |
Jump if No Zero |
. |
. |
. |
. |
JP |
label |
Jump if Positive |
. |
. |
. |
. |
JM |
label |
Jump if Minus |
. |
. |
. |
. |
JC |
label |
Jump if Carry |
. |
. |
. |
. |
JNC |
label |
Jump if No Carry |
. |
. |
. |
. |
JTM |
label |
Jump if True sign Minus |
. |
. |
. |
. |
JTP |
label |
Jump if True sign Positive |
. |
. |
. |
. |
JPE |
label |
Jump if Parity Even |
. |
. |
. |
. |
JPO |
label |
Jump if Parity Odd |
. |
. |
. |
. |
CALL |
label |
CALL unconditioanl |
. |
. |
. |
. |
CZ |
label |
Call if Zero |
. |
. |
. |
. |
CNZ |
label |
Call if No Zero |
. |
. |
. |
. |
CP |
label |
Call if Positive |
. |
. |
. |
. |
CM |
label |
Call if Minus |
. |
. |
. |
. |
CC |
label |
Call if Carry |
. |
. |
. |
. |
CNC |
label |
Call if No Carry |
. |
. |
. |
. |
CPE |
label |
Call if Parity Even |
. |
. |
. |
. |
CPO |
label |
Call if Parity Odd |
. |
. |
. |
. |
RET |
RETurn unconditional |
. |
. |
. |
. | |
RZ |
Return if Zero |
. |
. |
. |
. | |
RNZ |
Return if No Zero |
. |
. |
. |
. | |
RP |
Return if Positive |
. |
. |
. |
. | |
RM |
Return if Minus |
. |
. |
. |
. | |
RC |
Return if Carry |
. |
. |
. |
. | |
RNC |
Return if No Carry |
. |
. |
. |
. | |
RPE |
Return if Parity Even |
. |
. |
. |
. | |
RPO |
Return if Parity Odd |
. |
. |
. |
. | |
PCHL |
Program Counter from HL |
. |
. |
. |
. | |
RST |
n |
ReSTart |
. |
. |
. |
. |
RSTV |
ReSTart if oVerflow |
. |
. |
. |
. | |
8085 Instruction Actions by Functional Group
Data Transfer Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
MOV |
dreg, sreg |
dreg<=sreg |
. |
. |
. |
. |
MVI |
reg, byte |
reg<=byte |
. |
. |
. |
. |
MVX |
drp, srp |
drp<=srp (pseudo for high & low MOVs) |
. |
. |
. |
. |
LXI |
rp, word |
rp<=word |
. |
. |
. |
. |
XCHG |
HL<=DE while DE<=HL |
. |
. |
. |
. | |
LDA |
addr |
A<=b[addr] |
. |
. |
. |
. |
STA |
addr |
b[addr]<=A |
. |
. |
. |
. |
LDAX |
B |
A<=b[BC] |
. |
. |
. |
. |
STAX |
B |
b[BC]<=A |
. |
. |
. |
. |
LDAX |
D |
A<=b[DE] |
. |
. |
. |
. |
STAX |
D |
b[DE]<=A |
. |
. |
. |
. |
LHLD |
addr |
HL<=w[addr] |
. |
. |
. |
. |
SHLD |
addr |
w[addr]<=HL |
. |
. |
. |
. |
LHLI |
HL<=w[DE] |
. |
. |
. |
. | |
SHLI |
w[DE]<=HL |
. |
. |
. |
. | |
Arithmetic Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
ADD |
reg |
A<=A+reg |
x |
x |
x |
x |
ADI |
byte |
A<=A+byte |
x |
x |
x |
x |
ADC |
reg |
A<=A+reg+Cf |
x |
x |
x |
x |
ACI |
byte |
A<=A+byte+Cf |
x |
x |
x |
x |
SUB |
reg |
A<=A-reg |
x |
x |
x |
x |
SUI |
byte |
A<=A-byte |
x |
x |
x |
x |
SBB |
reg |
A<=A-reg-Cf |
x |
x |
x |
x |
SBI |
byte |
A<=A-byte-Cf |
x |
x |
x |
x |
DAA |
in A3..A0 and A7..A4: if >9 then +6, carry to next |
x |
x |
x |
x | |
INR |
reg |
reg<=reg+1 |
x |
. |
x |
x |
INX |
rp |
rp<=rp+1 |
. |
. |
. |
. |
DCR |
reg |
reg<=reg-1 |
x |
. |
x |
x |
DCX |
rp |
rp<=rp-1 |
. |
. |
. |
. |
DAD |
rp |
HL<=HL+rp |
. |
x |
. |
. |
HLMBC |
HL<=HL-BC |
x |
x |
h |
x | |
DEHL |
byte |
DE<=HL+byte |
. |
. |
. |
. |
DESP |
byte |
DE<=SP+byte |
. |
. |
. |
. |
Branch Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
JMP |
label |
PC<=label |
. |
. |
. |
. |
JZ |
label |
if Zf=1 then PC<=label |
. |
. |
. |
. |
JNZ |
label |
if Zf=0 then PC<=label |
. |
. |
. |
. |
JP |
label |
if Sf=0 then PC<=label |
. |
. |
. |
. |
JM |
label |
if Sf=1 then PC<=label |
. |
. |
. |
. |
JC |
label |
if Cf=1 then PC<=label |
. |
. |
. |
. |
JNC |
label |
if Cf=0 then PC<=label |
. |
. |
. |
. |
JTM |
label |
if TSf=1 then PC<=label |
. |
. |
. |
. |
JTP |
label |
if TSf=0 then PC<=label |
. |
. |
. |
. |
JPE |
label |
if Pf=1 then PC<=label |
. |
. |
. |
. |
JPO |
label |
if Pf=0 then PC<=label |
. |
. |
. |
. |
CALL |
label |
SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CZ |
label |
if Zf=1 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CNZ |
label |
if Zf=0 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CP |
label |
if Sf=0 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CM |
label |
if Sf=1 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CC |
label |
if Cf=1 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CNC |
label |
if Cf=0 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CPE |
label |
if Pf=1 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
CPO |
label |
if Pf=0 then SP<=SP-2, w[SP]<=PC+3, PC<=label |
. |
. |
. |
. |
RET |
PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RZ |
if Zf=1 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RNZ |
if Zf=0 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RP |
if Sf=0 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RM |
if Sf=1 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RC |
if Cf=1 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RNC |
if Cf=0 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RPE |
if Pf=1 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
RPO |
if Pf=0 then PC<=w[SP], SP<=SP+2 |
. |
. |
. |
. | |
PCHL |
PC<=HL |
. |
. |
. |
. | |
RST |
n |
SP<=SP-2, w[SP]<=PC+1, PC<=n*8 where n is 0 to 7 |
. |
. |
. |
. |
RSTV |
if OVf=1 then SP<=SP-2, w[SP]<=PC+1, PC<=8*8 |
. |
. |
. |
. | |
Logical Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
CMP |
reg |
T<=A-reg |
x |
x |
x |
x |
CPI |
byte |
T<=A-byte |
x |
x |
x |
x |
CMA |
A<=1's complement of A |
. |
. |
. |
. | |
CMC |
Cf<=1's complement of Cf |
. |
x |
. |
. | |
STC |
Cf<=1 |
. |
1 |
. |
. | |
SHLR |
HL<=HL/2 while H6<=H7 (extend sign) and Cf<=L0 |
. |
x |
. |
. | |
ANA |
reg |
A<=A AND reg |
x |
0 |
x |
x |
ANI |
byte |
A<=A AND byte |
x |
0 |
x |
x |
ORA |
reg |
A<=A Inclusive OR reg |
x |
0 |
x |
x |
ORI |
byte |
A<=A Inclusive OR byte |
x |
0 |
x |
x |
XRA |
reg |
A<=A Exclusive OR reg |
x |
0 |
x |
x |
XRI |
byte |
A<=A Exclusive OR byte |
x |
0 |
x |
x |
RAL |
A<=A*2 where Cf<=A7 while A0<=Cf |
. |
x |
. |
. | |
RAR |
A<=A/2 where Cf<=A0 while A7<=Cf |
. |
x |
. |
. | |
RLC |
A7..A1<=A6..A0 while A0<=A7 and Cf<=A7 |
. |
x |
. |
. | |
RRC |
A6..A0<=A7..A1 while A7<=A0 and Cf<=A0 |
. |
x |
. |
. | |
RDEL |
DE<=DE*2 where: Cf<=DE15 while DE00<=Cf |
. |
x |
. |
. | |
Stack, Input/Output, & Machine Control Group
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
PUSH |
rp |
SP<=SP-2, w[SP]<=rp |
. |
. |
. |
. |
POP |
rp |
rp<=w[SP], SP<=SP+2 |
. |
. |
. |
. |
SPHL |
SP<=HL |
. |
. |
. |
. | |
XTHL |
HL<=w[SP] while w[SP]<=HL |
. |
. |
. |
. | |
IN |
port |
A<=data from port |
. |
. |
. |
. |
OUT |
port |
data to port<=A |
. |
. |
. |
. |
DI |
disable interrupts |
. |
. |
. |
. | |
EI |
enable interrupts |
. |
. |
. |
. | |
RIM |
A<=interrupt mask |
. |
. |
. |
. | |
SIM |
interrupt mask<=A |
. |
. |
. |
. | |
NOP |
do nothing |
. |
. |
. |
. | |
HLT |
halt 8085 processor |
. |
. |
. |
. | |
8085 Instructions by Mnemonic
Instruction |
Mnemonic Meaning |
Flags | ||||
Zf |
Cf |
Pf |
Sf | |||
ACI |
byte |
Add with Carry Immediate |
x |
x |
x |
x |
ADC |
reg |
ADd with Carry |
x |
x |
x |
x |
ADD |
reg |
ADD |
x |
x |
x |
x |
ADI |
byte |
ADd Immediate |
x |
x |
x |
x |
ANA |
reg |
ANd Accumulator |
x |
0 |
x |
x |
ANI |
byte |
ANd Immediate |
x |
0 |
x |
x |
CALL |
label |
CALL unconditional |
. |
. |
. |
. |
CC |
label |
Call if Carry |
. |
. |
. |
. |
CM |
label |
Call if Minus |
. |
. |
. |
. |
CMA |
CoMplement Accumulator |
. |
. |
. |
. | |
CMC |
CoMplement Carry |
. |
x |
. |
. | |
CMP |
reg |
CoMPare |
x |
x |
x |
x |
CNC |
label |
Call if No Carry |
. |
. |
. |
. |
CNZ |
label |
Call if No Zero |
. |
. |
. |
. |
CP |
label |
Call if Positive |
. |
. |
. |
. |
CPE |
label |
Call if Parity Even |
. |
. |
. |
. |
CPI |
byte |
ComPare Immediate |
x |
x |
x |
x |
CPO |
label |
Call if Parity Odd |
. |
. |
. |
. |
CZ |
label |
Call if Zero |
. |
. |
. |
. |
DAA |
Decimal Adjust Accumulator |
x |
x |
x |
x | |
DAD |
rp |
Dual-register ADd to hl |
. |
x |
. |
. |
DCR |
reg |
DeCrement Register |
x |
. |
x |
x |
DCX |
rp |
DeCrement eXtended-register |
. |
. |
. |
. |
DEHL |
byte |
DE from HL plus byte |
. |
. |
. |
. |
DESP |
byte |
DE from SP plus byte |
. |
. |
. |
. |
DI |
Disable Interrupts |
. |
. |
. |
. | |
EI |
Enable Interrupts |
. |
. |
. |
. | |
HLMBC |
HL Minus BC |
x |
x |
h |
x | |
HLT |
HaLT |
. |
. |
. |
. | |
IN |
port |
INput from port |
. |
. |
. |
. |
INR |
reg |
INcrement Register |
x |
. |
x |
x |
INX |
rp |
INcrement eXtended-register |
. |
. |
. |
. |
JC |
label |
Jump if Carry |
. |
. |
. |
. |
JM |
label |
Jump if Minus |
. |
. |
. |
. |
JMP |
label |
JuMP unconditional |
. |
. |
. |
. |
JNC |
label |
Jump if No Carry |
. |
. |
. |
. |
JNZ |
label |
Jump if No Zero |
. |
. |
. |
. |
JP |
label |
Jump if Positive |
. |
. |
. |
. |
JPE |
label |
Jump if Parity Even |
. |
. |
. |
. |
JPO |
label |
Jump if Parity Odd |
. |
. |
. |
. |
JTM |
label |
Jump if True sign Minus |
. |
. |
. |
. |
JTP |
label |
Jump if True sign Positive |
. |
. |
. |
. |
JZ |
label |
Jump if Zero |
. |
. |
. |
. |
LDA |
addr |
LoaD Accumulator direct |
. |
. |
. |
. |
LDAX |
B |
LoaD Accumulator indirect via eXtended-register Bc |
. |
. |
. |
. |
LDAX |
D |
LoaD Accumulator indirect via eXtended-register De |
. |
. |
. |
. |
LHLD |
addr |
Load HL Direct |
. |
. |
. |
. |
LHLI |
Load HL Indirect via extended register de |
. |
. |
. |
. | |
LXI |
rp, word |
Load eXtended-register Immediate |
. |
. |
. |
. |
MOV |
dreg, sreg |
MOVe |
||||
MVI |
reg, byte |
MoVe Immediate |
. |
. |
. |
. |
MVX |
drp, srp |
MoVe eXtended-register (pseudo for high & low MOVs) |
. |
. |
. |
. |
NOP |
No OPeration |
. |
. |
. |
. | |
ORA |
reg |
OR Accumulator |
x |
0 |
x |
x |
ORI |
byte |
OR Immediate |
x |
0 |
x |
x |
OUT |
port |
OUTput to port |
. |
. |
. |
. |
PCHL |
Program Counter from HL |
. |
. |
. |
. | |
POP |
rp |
POP off stack |
. |
. |
. |
. |
PUSH |
rp |
PUSH on stack |
. |
. |
. |
. |
RAL |
Rotate Accumulator Left through carry |
. |
x |
. |
. | |
RAR |
Rotate Accumulator Right through carry |
. |
x |
. |
. | |
RC |
Return if Carry |
. |
. |
. |
. | |
RDEL |
Rotate DE Left through carry |
. |
x |
. |
. | |
RET |
RETurn unconditional |
. |
. |
. |
. | |
RIM |
Read Interrupt Mask |
. |
. |
. |
. | |
RLC |
Rotate accumulator Left Circular |
. |
x |
. |
. | |
RM |
Return if Minus |
. |
. |
. |
. | |
RNC |
Return if No Carry |
. |
. |
. |
. | |
RNZ |
Return if No Zero |
. |
. |
. |
. | |
RP |
Return if Positive |
. |
. |
. |
. | |
RPE |
Return if Parity Even |
. |
. |
. |
. | |
RPO |
Return if Parity Odd |
. |
. |
. |
. | |
RRC |
Rotate accumulator Right Circular |
. |
x |
. |
. | |
RST |
n |
ReSTart |
. |
. |
. |
. |
RSTV |
ReSTart if oVerflow |
. |
. |
. |
. | |
RZ |
Return if Zero |
. |
. |
. |
. | |
SBB |
reg |
SuBtract with Borrow |
x |
x |
x |
x |
SBI |
byte |
Subtract with Borrow Immediate |
x |
x |
x |
x |
SHLD |
addr |
Store HL Direct |
. |
. |
. |
. |
SHLI |
Store HL Indirect via extended register de |
. |
. |
. |
. | |
SHLR |
Shift HL Right |
. |
x |
. |
. | |
SIM |
Set Interrupt Mask |
. |
. |
. |
. | |
SPHL |
Stack Pointer from HL |
. |
. |
. |
. | |
STA |
addr |
STore Accumulator direct |
. |
. |
. |
. |
STAX |
B |
Store Accumulator indirect via eXtended-register Bc |
. |
. |
. |
. |
STAX |
D |
Store Accumulator indirect via eXtended-register De |
. |
. |
. |
. |
STC |
SeT Carry |
. |
1 |
. |
. | |
SUB |
reg |
SUBtract |
x |
x |
x |
x |
SUI |
byte |
SUbtract Immediate |
x |
x |
x |
x |
XCHG |
eXCHanGe hl with de |
. |
. |
. |
. | |
XRA |
reg |
eXclusive oR Accumulator |
x |
0 |
x |
x |
XRI |
byte |
eXclusive oR Immediate |
x |
0 |
x |
x |
XTHL |
eXchange Top of stack with HL |
. |
. |
. |
. | |
8085 Machine Cycles by Functional Group
Data Transfer Group
Essential Cycles +register M involved or condition Met |
EC +MM | ||
Instruction |
Mnemonic Meaning |
Cycles | |
MOV |
dreg, sreg |
MOVe |
04 +03 |
MVI |
reg, byte |
MoVe Immediate |
07 +03 |
MVX |
drp, srp |
MoVe eXtended-register (pseudo for high & low MOVs) |
-- |
LXI |
rp, word |
Load eXtended-register Immediate |
10 |
XCHG |
eXCHanGe hl with de |
04 | |
LDA |
addr |
LoaD Accumulator direct |
13 |
STA |
addr |
STore Accumulator direct |
13 |
LDAX |
B |
LoaD Accumulator indirect via eXtended-register Bc |
07 |
STAX |
B |
Store Accumulator indirect via eXtended-register Bc |
07 |
LDAX |
D |
LoaD Accumulator indirect via eXtended-register De |
07 |
STAX |
D |
Store Accumulator indirect via eXtended-register De |
07 |
LHLD |
addr |
Load HL Direct |
16 |
SHLD |
addr |
Store HL Direct |
16 |
LHLI |
Load HL Indirect via extended register de |
10 | |
SHLI |
Store HL Indirect via extended register de |
10 | |
Arithmetic Group
Essential Cycles +register M involved or condition Met |
EC +MM | ||
Instruction |
Mnemonic Meaning |
Cycles | |
ADD |
reg |
ADD |
04 +03 |
ADI |
byte |
ADd Immediate |
07 |
ADC |
reg |
ADd with Carry |
04 +03 |
ACI |
byte |
Add with Carry Immediate |
07 |
SUB |
reg |
SUBtract |
04 +03 |
SUI |
byte |
SUbtract Immediate |
07 |
SBB |
reg |
SuBtract with Borrow |
04 +03 |
SBI |
byte |
Subtract with Borrow Immediate |
07 |
DAA |
Decimal Adjust Accumulator |
04 | |
INR |
reg |
INcrement Register |
04 +06 |
INX |
rp |
INcrement eXtended-register |
06 |
DCR |
reg |
DeCrement Register |
04 +06 |
DCX |
rp |
DeCrement eXtended-register |
06 |
DAD |
rp |
Dual-register ADd to hl |
10 |
HLMBC |
HL Minus BC |
10 | |
DEHL |
byte |
DE from HL plus byte |
10 |
DESP |
byte |
DE from SP plus byte |
10 |
Logical Group
Essential Cycles +register M involved or condition Met |
EC +MM | ||
Instruction |
Mnemonic Meaning |
Cycles | |
CMP |
reg |
CoMPare |
04 +03 |
CPI |
byte |
ComPare Immediate |
07 |
CMA |
CoMplement Accumulator |
04 | |
CMC |
CoMplement Carry |
04 | |
STC |
SeT Carry |
04 | |
SHLR |
Shift HL Right |
07 | |
ANA |
reg |
ANd Accumulator |
04 +03 |
ANI |
byte |
ANd Immediate |
07 |
ORA |
reg |
OR Accumulator |
04 +03 |
ORI |
byte |
OR Immediate |
07 |
XRA |
reg |
eXclusive oR Accumulator |
04 +03 |
XRI |
byte |
eXclusive oR Immediate |
07 |
RAL |
Rotate Accumulator Left through carry |
04 | |
RAR |
Rotate Accumulator Right through carry |
04 | |
RLC |
Rotate accumulator Left Circular |
04 | |
RRC |
Rotate accumulator Right Circular |
04 | |
RDEL |
Rotate DE Left through carry |
10 | |
Stack, Input/Output, & Machine Control Group
Essential Cycles +register M involved or condition Met |
EC +MM | ||
Instruction |
Mnemonic Meaning |
Cycles | |
PUSH |
rp |
PUSH on stack |
12 |
POP |
rp |
POP off stack |
10 |
SPHL |
Stack Pointer from HL |
06 | |
XTHL |
eXchange Top of stack with HL |
16 | |
IN |
port |
INput from port |
10 |
OUT |
port |
OUTput to port |
10 |
DI |
Disable Interrupts |
04 | |
EI |
Enable Interrupts |
04 | |
RIM |
Read Interrupt Mask |
04 | |
SIM |
Set Interrupt Mask |
04 | |
NOP |
No OPeration |
04 | |
HLT |
HaLT |
05 | |
Branch Group
Essential Cycles +register M involved or condition Met |
EC +MM | ||
Instruction |
Mnemonic Meaning |
Cycles | |
JMP |
label |
JuMP unconditional |
10 |
JZ |
label |
Jump if Zero |
07 +03 |
JNZ |
label |
Jump if No Zero |
07 +03 |
JP |
label |
Jump if Positive |
07 +03 |
JM |
label |
Jump if Minus |
07 +03 |
JC |
label |
Jump if Carry |
07 +03 |
JNC |
label |
Jump if No Carry |
07 +03 |
JTM |
label |
Jump if True sign Minus |
07 +03 |
JTP |
label |
Jump if True sign Positive |
07 +03 |
JPE |
label |
Jump if Parity Even |
07 +03 |
JPO |
label |
Jump if Parity Odd |
07 +03 |
CALL |
label |
CALL unconditional |
18 |
CZ |
label |
Call if Zero |
09 +09 |
CNZ |
label |
Call if No Zero |
09 +09 |
CP |
label |
Call if Positive |
09 +09 |
CM |
label |
Call if Minus |
09 +09 |
CC |
label |
Call if Carry |
09 +09 |
CNC |
label |
Call if No Carry |
09 +09 |
CPE |
label |
Call if Parity Even |
09 +09 |
CPO |
label |
Call if Parity Odd |
09 +09 |
RET |
RETurn unconditional |
10 | |
RZ |
Return if Zero |
06 +06 | |
RNZ |
Return if No Zero |
06 +06 | |
RP |
Return if Positive |
06 +06 | |
RM |
Return if Minus |
06 +06 | |
RC |
Return if Carry |
06 +06 | |
RNC |
Return if No Carry |
06 +06 | |
RPE |
Return if Parity Even |
06 +06 | |
RPO |
Return if Parity Odd |
06 +06 | |
PCHL |
Program Counter from HL |
06 | |
RST |
n |
ReSTart |
12 |
RSTV |
ReSTart if oVerflow |
06 +06 | |
8085 Instruction Mnemonics by Op-code
x0h |
x1h |
x2h |
x3h |
x4h |
x5h |
x6h |
x7h |
x8h |
x9h |
xAh |
xBh |
xCh |
xDh |
xEh |
xFh | |
00h-0Fh |
NOP |
LXI B,w |
STAX B |
INX B |
INR B |
DCR B |
MVI B,b |
RLC |
HLMBC |
DAD B |
LDAX B |
DCX B |
INR C |
DCR C |
MVI C,b |
RRC |
10h-1Fh |
SHLR |
LXI D,w |
STAX D |
INX D |
INR D |
DCR D |
MVI D,b |
RAL |
RDEL |
DAD D |
LDAX D |
DCX D |
INR E |
DCR E |
MVI E,b |
RAR |
20h-2Fh |
RIM |
LXI H,w |
SHLD @ |
INX H |
INR H |
DCR H |
MVI H,b |
DAA |
DEHL b |
DAD H |
LHLD @ |
DCX H |
INR L |
DCR L |
MVI L,b |
CMA |
30h-3Fh |
SIM |
LXI SP,w |
STA @ |
INX SP |
INR M |
DCR M |
MVI M,b |
STC |
DESP b |
DAD SP |
LDA @ |
DCX SP |
INR A |
DCR A |
MVI A,b |
CMC |
40h-4Fh |
MOV B,B |
MOV B,C |
MOV B,D |
MOV B,E |
MOV B,H |
MOV B,L |
MOV B,M |
MOV B,A |
MOV C,B |
MOV C,C |
MOV C,D |
MOV C,E |
MOV C,H |
MOV C,L |
MOV C,M |
MOV C,A |
50h-5Fh |
MOV D,B |
MOV D,C |
MOV D,D |
MOV D,E |
MOV D,H |
MOV D,L |
MOV D,M |
MOV D,A |
MOV E,B |
MOV E,C |
MOV E,D |
MOV E,E |
MOV E,H |
MOV E,L |
MOV E,M |
MOV E,A |
60h-6Fh |
MOV H,B |
MOV H,C |
MOV H,D |
MOV H,E |
MOV H,H |
MOV H,L |
MOV H,M |
MOV H,A |
MOV L,B |
MOV L,C |
MOV L,D |
MOV L,E |
MOV L,H |
MOV L,L |
MOV L,M |
MOV L,A |
70h-7Fh |
MOV M,B |
MOV M,C |
MOV M,D |
MOV M,E |
MOV M,H |
MOV M,L |
HLT |
MOV M,A |
MOV A,B |
MOV A,C |
MOV A,D |
MOV A,E |
MOV A,H |
MOV A,L |
MOV A,M |
MOV A,A |
80h-8Fh |
ADD B |
ADD C |
ADD D |
ADD E |
ADD H |
ADD L |
ADD M |
ADD A |
ADC B |
ADC C |
ADC D |
ADC E |
ADC H |
ADC L |
ADC M |
ADC A |
90h-9Fh |
SUB B |
SUB C |
SUB D |
SUB E |
SUB H |
SUB L |
SUB M |
SUB A |
SBB B |
SBB C |
SBB D |
SBB E |
SBB H |
SBB L |
SBB M |
SBB A |
A0h-AFh |
ANA B |
ANA C |
ANA D |
ANA E |
ANA H |
ANA L |
ANA M |
ANA A |
XRA B |
XRA C |
XRA D |
XRA E |
XRA H |
XRA L |
XRA M |
XRA A |
B0h-BFh |
ORA B |
ORA C |
ORA D |
ORA E |
ORA H |
ORA L |
ORA M |
ORA A |
CMP B |
CMP C |
CMP D |
CMP E |
CMP H |
CMP L |
CMP M |
CMP A |
COh-CFh |
RNZ |
POP B |
JNZ @ |
JMP @ |
CNZ @ |
PUSH B |
ADI b |
RST 0 |
RZ |
RET |
JZ @ |
RSTV |
CZ @ |
CALL @ |
ACI b |
RST 1 |
D0h-DFh |
RNC |
POP D |
JNC @ |
OUT port |
CNC @ |
PUSH D |
SUI b |
RST 2 |
RC |
SHLI |
JC @ |
IN port |
CC @ |
JTP @ |
SBI b |
RST 3 |
E0h-EFh |
RPO |
POP H |
JPO @ |
XTHL |
CPO @ |
PUSH H |
ANI b |
RST 4 |
RPE |
PCHL |
JPE @ |
XCHG |
CPE @ |
LHLI |
XRI b |
RST 5 |
F0h-FFh |
RP |
POP PSW |
JP @ |
DI |
CP @ |
PUSH PSW |
ORI b |
RST 6 |
RM |
SPHL |
JM @ |
EI |
CM @ |
JTM @ |
CPI b |
RST 7 |
