Write a PICmicro Assembly code that accept 4-bit operand 1 from the least significant bits of RB<3:0> and 4-bit operand 2 from the most significant bits of RB <7:4>. Next the opernad 1 and 2 are added and placed in PORTA or R

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Write a PICmicro Assembly code that accept 4-bit operand 1 from the least significant bits of RB<3:0>
and 4-bit operand 2 from the most significant bits of RB <7:4>. Next the opernad 1 and 2 are added and
placed in PORTA or RA<4:0>.
The program shall wait until value of operands are changes and only then update the sum stored in
PORTA or RA<4:0>.  using the PIC 18f1220

 

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