RTL Studio Open IDE

3.6 · RISC-V CLASS

LSU and data memory integration

Connect the LSU to the local data RAM and run a store followed by a load to verify data integrity.

Video coming soon. This lesson page stays at the same URL when the lecture publishes.

What you practice

LSU and data memory integration (3.6). Connect the LSU to the local data RAM and run a store followed by a load to verify data integrity. It is in LSU + DMEM top — Part 3 · Load/Store & Local Memory of the RISC-V RV32I Core Masterclass.

The RV32I core is Verilog you simulate in the browser IDE. Verilator runs the program; the waveform shows PC, the instruction, and the register write.

Run it in the Verilog IDE

  1. Open the RV32I lesson in the IDE. Fetch, decode, and execute are source you can simulate.
  2. Run Verilator and watch PC, the instruction, and the register write on the waveform.
  3. Treat a program printout as done only after the ISA step this lesson names matches the wave.
  4. Change the RTL in the editor, rerun Verilator, and read the waveform again in the same tab.

The lesson is done when the simulation matches LSU and data memory integration. Change the source, run the Verilog simulator again, and read the waveform without leaving the IDE. Simulation guide · Yosys guide.