16 bit 2's complement adder in VHDL -

i want add value 16 input , 1 output input , output has 16 bit length.i have 2 types of input value.

• binary 16 bit positive value , sign bit '0' such "0111000101111000" (29048).
• 2's complement 16 bit negative value , sign bit '1' such "1000111010001000" (-29048).

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