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8052 Instruction Set
E-16
MOV Move into/out of Internal RAM
Syntax MOV operand1,operand2
Instructions OpCode Bytes Cycles Flags
MOV @R0,#data8 0x76 2 1 None
MOV @R1,#data8 0x77 2 1 None
MOV @R0,direct 0xA6 2 2 None
MOV @R1,direct 0xA7 2 2 None
MOV R0,#data8 0x78 2 1 None
MOV R1,#data8 0x79 2 1 None
MOV R2,#data8 0x7A 2 1 None
MOV R3,#data8 0x7B 2 1 None
MOV R4,#data8 0x7C 2 1 None
MOV R5,#data8 0x7D 2 1 None
MOV R6,#data8 0x7E 2 1 None
MOV R7,#data8 0x7F 2 1 None
MOV R0,direct 0xA8 2 2 None
MOV R1,direct 0xA9 2 2 None
MOV R2,direct 0xAA 2 2 None
MOV R3,direct 0xAB 2 2 None
MOV R4,direct 0xAC 2 2 None
MOV R5,direct 0xAD 2 2 None
MOV R6,direct 0xAE 2 2 None
MOV R7,direct 0xAF 2 2 None
MOV direct,#data8 0x75 3 2 None
MOV direct,@R0 0x86 2 2 None
MOV direct,@R1 0x87 2 2 None
MOV direct,R0 0x88 2 2 None
MOV direct,R1 0x89 2 2 None
MOV direct,R2 0x8A 2 2 None
MOV direct,R3 0x8B 2 2 None
MOV direct,R4 0x8C 2 2 None
MOV direct,R5 0x8D 2 2 None
MOV direct,R6 0x8E 2 2 None
MOV direct,R7 0x8F 2 2 None
MOV direct1,direct2 0x85 3 2 None
MOV copies the value of operand2 into operand1. The value of operand2 is
not affected.
Note:
In the case of MOV direct1,direct2, the operand bytes of the instruction are
stored in reverse order. That is, the instruction consisting of the bytes 85
H
, 20
H
,
50
H
means move the contents of internal RAM location 0x20 to internal RAM
location 0x50, although the opposite would be generally presumed.
See also: MOVC, MOVX, XCH, XCHD, PUSH, POP