16 bit risc processor verilog code

Can you share the ISA for above architecture? Are you following MIPS? But here we don't need it. I have modified and verified it. I used it and got A grade from my teacher however I am a bit confused. Why have you avoided alucontrol instead used opcode directly from control unit? Are you goin to add more instructions? Well alucontrol was somehow taking a clock cycle and was making my processor a delay with 1 CC. Yes there are 2 more patches coming soon. Hello Tony, the code is complete, You must simulate the top level module, This will only show the wave of clk and reset, however other waves can be added using the navigation to all modules from the navigator at left side in Xilinx Simulator.

Correct Bro!

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I have changed it. Thanks for reviewing. The sel 10 state gets used only in JMP format so it was a relief. Also ran prime and Fibonacci on this code. Your code is poorly documented!!!! Try to make it readable next time.

Feliks zemdegs 473

The risc module is the top module with only clock and reset pins. Sorry for late reply. If you are using Xilinx then in the simulation windows check the left pane It will show all modules.

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All you have to do is add any port of the module to the wave window by dragging or right click and add. Regarding What kind of output should be there? Well you have to provide the right instruction and the program will do operation according to the opcode and it will be stored in the destination register whih you will have to drag in the window to see the stored value.

Your code is for 16 bit processor.Attached files: ID. Ok, so I need some help with a verilog self learning project I'm working on.

Verilog code for 16-bit single cycle MIPS processor

I'm building a 16 bit RISC microprocessor. I'm on the last 3 modules before major testing and I'm stuck on the second one. The instruction decoder. I'll have a diagram to explain what I'm talking about.

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The module takes a 16 bit input First 4 bits raise a flag that corresponds to the instruction ex. I've also attached my code to what I think is correct.

Does this look ok? Is this how you would implement this? Did I over complicate it. I'm not the Verilog pro, but as far as I see, you kind of assign the op to itself Why the doublestep with assigning op codes to the op codes? Here you will find an example code of a very small and simple CPU. Hope you will find an inspiration for your project. This is written in Lucid. But Lucid will be compiled into Verilog. Download the free Mojo IDE and compile this example.

You will find the Verilog code in a sub directory. Therefore, it is a 16bit CPU. But a pretty crippled one considering you need three instructions to load a bit value anywhere Watch this topic Disable multi-page view.

Reply Entering an e-mail address is optional. If you want to receive reply notifications by e-mail, please log in. Rules — please read before posting Post long source code as attachment, not in the text Posting advertisements is forbidden. Searching for similar topics Note: the original post is older than 6 months. Please don't ask any new questions in this thread, but start a new one. Contact — Data privacy information — Advertising on EmbDev.May i check with you what type of stimulus do i have to include in the test bench codes.

I ran the whole program with the testbench for ns but the register values are 0 or x. Double check your instruction memory. All instructions here are fully verified. You can check instruction by instruction and see register files, data memory to verify.

Ok thanks for your advice. How do i implement a pipeline structure into a mips processor? Do i just implement a register in between individual stages?

If so where do i implement them. I tried that but the end output just outputs 'z's??? I guess I dont know what is supposed to be happening here. Please post verilog codes for 32 bit pipelined risc processor with data path and control unit explanation. That's only for debugging in simulation. You can commented it out in the top level code if you don't want to see it in simulation.

I read that mips is risk based processor! Isn't it a 16 bits per word memory? Just a memory word alignments a MIPS data access unit. Thanks for your question. It is a bit CPU, so 2 byte per word. The PC and the Offset address is increased by 2.MicroBlaze is the Xilinx one we fully support 32 bit.

Verilog Code for 16-bit RISC Processor

I can antecipate that your biggest concern should be creating code with the compiler, ie it would be necessary to provide a toolchain for it.

Code it up using your favorite environment, use any simulation tool like the Xilinx's own or even iverilog on Linux, then create an IP and wrap it into an AXI interface so you can integrate.

Overall, if your goal is to introduce custom logic into your processing, as you said you perhaps do not need a CPU at all - just code it in HLS. A CPU only makes sense with a custom toolchain or any other form to automatically generate the instruction bitstream. It is a very interesting project since the forth instructions it uses are both very intelligible to humans and have a relationship with its assembly instructions so the "compiler" is a mere token mapping.

That said, I would check your link script to see where you are storing the. Sign In Help.

16 bit risc processor verilog code

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16 bit risc processor verilog code

Search instead for. Did you mean:. All forum topics Previous Topic Next Topic. Hope this helps.Thanks in advance. These files were given above.


Just create the file with the same names and copy the contents into these files. Thank you for the above code. I tested itworks perfectly. I got an overview now.

16 bit risc processor verilog code

Thanks again. For the instruction memory, you need to convert instructions to machine code. Then, put the data into instruction memory. There are 2 given example files for data and instruction memory. You can refer to it. Check register and memory content for verification or you take some of them as outputs to see on the simulation waveform. Data Processing Instructions 1. Logical Shift Right:. Bitwise AND:. Bitwise OR:. Control Flow Instructions 1. Control signals.

ALU Control. Opcode hex. ALU Operation.The individual. The Register File has two registers R0 and R1. Design the program counter and instruction memory such that. You can refer to the construction and working of the MIPS datapath and control path found in the text book. The complete RTL schematic of the processor including the datapath and the control path is designed in. After the final design is synthesized, the processor can be simulated to view the inputs and outputs.

Inputs can. Dear sir I have more than 10 years experience in digital design using verilog please message me so that we can discuss more details.

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Hi I am working in rtl design work by more than 6 years. I have a very good experience in designing microprocessors. Please let me know if we can work.

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I will design this system for you. I am Mphill in mechanical engineering, Electrical engineering and plumbing. I have five years of experience as a MEP in a multinational company of Dubai. I have 10 years of experience in design and verification using Verilog.

I had some projects similar to your project please see my review. Please message me. Best regards. Contact me to discuss more on the details. Looking positively to work with you on this BR, Prashanthi. I have also implemented CPU designs you can see my project logs. I was part of CPU design team in a big semiconductor company. I have developed various kind of processors with and without pipelined architectures. I will do this and provide it you with In a week I have done similar project in my undergraduate time.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

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16 bit risc processor verilog code

If nothing happens, download Xcode and try again. If nothing happens, download the GitHub extension for Visual Studio and try again. The processor is capable of fetching and executing a set of bit machine instructions. The address for conditional jump instructions is calculated by adding the bit sign-extension of an 8-bit signed offset to the program counter. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.

Sign up. Verilog Branch: master. Find file. Sign in Sign up. Go back. Launching Xcode If nothing happens, download Xcode and try again. Latest commit Fetching latest commit…. You signed in with another tab or window. Reload to refresh your session.

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