Because of the frequent need to increment 4-byte values, we decide to invent a new microinstruction, written inc4 $(x)$, that directly performs a 4-byte increment on the value stored in SRAM locations $x$ through $x+3$, where the least significant byte is in location $x$. Write a (symbolic) nanocode segment to implement this new microinstruction. You do not need to limit it to 16 cycles. How many cycles does your nanocode take?