b) Now Kaiyuan needs your help to finish the LC-3 implementation of dispatcher. aplete the function below. Note that you must check the cmd value, and return 1, if it is invalid. The LC3 atch table and dispatcher C-function are copied below for reference. Everything written beyond the provided will be IGNORED. Not all blank lines need to be filled. ; Get the "Core Function" pointer into R3 JMP R3 ; Jump to the core function ; Jump here for invalid cmd and return 0 INVALID_CMD