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DESCRIPTION OF INSTRUCTIONS
315
56. MOV A, @Rr (Move indirect address to accumulator)
1110011r
70
Instruction code
Operation
Number of bytes
Number of cycles
Flags
(PSW)
Description
Example MOV A, @R0
Instruction code
: Byte 1
(A)←((Rr)) r=0 or 1:
C AC F0 RS1 RS0 OV F1 P
•
:
:
:
The data memory location contents addressed by the register r
contents are copied to the accumulator, and the flag is updated.
:
11100110
70
Byte 1
Register 0
01110010
70
1
1
Before execution
Register 0
01110010
70
After execution
:
72H
10110111
70
72H
10110111
70
Accumulator
01001100
70
Accumulator
10110111
70