Assume a microinstruction set that includes a microinstruction with the following symbolic form: where AC0 is the

Question:

Assume a microinstruction set that includes a microinstruction with the following symbolic form:

where AC0 is the sign bit of the accumulator and are the first seven bits of the microinstruction. Using this microinstruction, write a micro program that implements
a Branch Register Minus (BRM) machine instruction, which branches if the AC is negative. Assume that bits through of the microinstruction specify a parallel set of micro-operations. Express the program symbolically.