8085 Microprocessor :: Data Transfer Instructions

i) MOV
Syntax: MOV Rd, Rs

• MOV M, Rs
• MOV Rd, M

ii) MVI
Syntax: MVI Rd/M, 8-bit data

iii) LXI
Syntax: LXI Reg. pair, 16-bit data

• e.g. LXI B, 8085    ;B<=80, C<=85

iv) LDA
Syntax: LDA 16-bit address

• e.g. LDA 8085    ;A<=M[8085]

v) STA
Syntax: STA 16-bit address

• e.g. STA 8085    ;M[8085]<=A

vi) LDAX
Syntax: LDAX B/D register pair

• e.g. LDAX B    ;A<=M[8050] (if B=80, C=50)

vii) STAX
Syntax: STAX B/D register pair

• e.g. STAX B    ;M[8050]<=A (if B=80, C=50)

viii) LHLD
Syntax: LHLD 16-bit address

• e.g. LHLD 8085    ;L<=M[8085], H<=M[8086]

ix) SHLD
Syntax: SHLD 16-bit address

• e.g. SHLD 8085    ;M[8085]<=L, M[8086]<=H

x) XCHG
Syntax: XCHG ;interchanges between D and H; and E and L

• H<=D and L<=E
• D<=H and E<=L

xi) IN
Syntax: IN 8-bit port address

• e.g. IN 15    ;data received from port address 15 is transferred into Accumulator.

xii) OUT
Syntax: OUT 8-bit port address

• e.g. OUT 15    ;content of Accumulator is transferred to port address 15.