STAX

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Syntax: STAX Rhp
Where Rhp is higher order register  the pair. (HL, BC or DE)
Byte: 1byte
Addressing Mode: Register Indirect Addressing
Working: for execution of this instruction, microprocessor will allocate first byte for opcode and the operand is register which don't need allocation.
Example: STAX H
where [L]= FFH
[H] = 40 H
[A]= 88H
After execution of STAX H
[40FF H]= 88 H

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