Implement emulators like PSIM, an emulator for PIPE implementation of the chArm instruction set architecture.

Implement a PIPE simulator. You are going to complete the C code in files through a GitHub repository I will provide . The goal is to pass all test cases in the GitHub repo. You are required to implement five functions that emulate five stages for your PIPE- simulator: • fetch instr(): Fetch stage (including PC update actions). • decode instr(): Decode stage. • execute instr(): Execute stage. • memory instr(): Memory stage. • wback instr(): Write-back stage. The fields of the pipeline registers are defined in include/pipe/instr_pipeline.h in several struct types *_instr_impl_t and pipe_reg_t. The “clocking” of these registers is handled for you in src/base/proc.c. When implementing the combinational logic for a pipeline stage, you will be passed in the appropriate structs as your input and output arguments, which are named in and out. There are also a few global variables that represent the “backwards” wires sent from one stage to a prior stage, which you will need to update as well.