Edge detector. Write a function that outputs a short pulse on bit $7$ of "virtual$\_$gpio$\_$out" when

; rising edge is detected on one of bit of "virtual$\_$gpio$\_$in$".$ The bit to detect the rising edge

; $($bit mask$)$ is passed via R$3.$ The 'rising edge' is changing bit from $\text{'}0\text{'}$ to $\text{'}1\text{'}.$