What is Direct Addressing Mode ?
Direct Addressing Mode :
In this mode
of addressing the address of the operand (data) is given in the instruction
itself.
Example:-
1) STA 2500H (store the
content of Accumulator in the memory location 2500)
In this
instruction 2500H is the memory address where data is to be stored. It is given
in the instruction specify the address of the memory location the source of the
data is accumulator.
2) IN62 (read data from port C)
In this instruction 62 is
the address of the port C of an input/output port from where the data is to be
read. It is implied that the destination is the accumulator. The 2nd
byte of the instruction specifies address of the port.
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