Attention:
	1. for quickly simulation, please in the ../../project/src/ddr3_memory_interface/temp/DDR3/gwmc_param.v file,
           add below:
	   `define SIM
 	2. if appear below Error:
        # ** Error (suppressible): (vsim-12023) ../../tb/tb.v(91): Cannot execute undefined system task/function '$fsdbDumpfile'
	    # ** Error (suppressible): (vsim-12023) ../../tb/tb.v(92): Cannot execute undefined system task/function '$fsdbDumpvars'

        please ignore this error,because $fsdbDumpfile,$fsdbDumpvars function used in the vcs simulation

1.Run Command
    method 1: do cmd.do , in the Transcript windows of the Modesim Tool
    method 2: vsim -do cmd.do , in the Terminal of the Linux 

2.Files Introduction

    prim_sim.v                  :
                                simulation library, get from installation path of gowin yunyuan software tool
    cmd.do                      :
                                modesim  do(command) file
    compile.f                   :
                                modesim compile design file

