Design And Implementation Of RISC Instruction Set Simulation Based On DSP

DSP(Digital Signal Processor)digital signal processing chip,and it can also present digital signal proeessor,the later is a kind of technique.Over the past few decades,the digital signal processing technology has been widely used in communications,multimedia and information appliances field.The rapid improvement of DSP chip expands the influence of DSP technique,which now can finish more and more task,and the theory of DSP which once was never realized makes great progress.Now it can be to change into a real DSP processor chips.Meanwhile,DSP also speeds the development of other field.It can be said for sure that DSP has played an important role in the field of computer control and so on.This article design and implementation of RISC instruction set simulation based on DSP,which design concept is interpretive instruction set simulator and MD32 processor.The main function of the system is simulate the MD32 instructions and return the simulation result.The system is divided into two parts,one is the user interface,this part has two functions,one is designed to test the system for instruction set simulator,the testers can use the interface button to chose which instruction will be simulated,if the test instructions have already been chosed,the system will automatically generates test instructions and a randomly generated number required to bring the operation of the instruction in accordance with the test instructions,if you do not test,the user only need to select the "Use mode"button,then the interface will call instruction set simulator automatically and load the generated text and write test procedures.When the instruction set simulator load the test program to the storage area,the top module will first call the instruction set simulator module according to the flag value,then the instruction set simulator module read the instructions from program memory,and send the instruction to the corresponding instruction processing unit according to the results obtained by the decoding processing,after the module completed it will re-execute this process step until the program storage area has been completed,if an error occurs during the simulation,the simulation module will stop simulate and the error flag will be set,and the program control to the top module,the top-level module more complete emulation flag call display output interface,which will,accumulator,memory,and the value of the global flag status bits programs all the registers once read and written to the output file according to a fixed form,then the end of the emulator.The article designed base on the traditional instruction simulation combines the user interface,it will let the user to be more clear to the simulation result.