RTL Studio Open IDE

4.2 · RV SYS CLASS

IF ID pipeline regs

Build the IF/ID pipeline register to latch the fetched PC and instruction, handling stalls and resets.

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

What you practice

IF ID pipeline regs (4.2). Build the IF/ID pipeline register to latch the fetched PC and instruction, handling stalls and resets. It is in IF/ID pipeline registers — Part 4 · Pipeline of the RISC-V on SoC & System Masterclass.

The core and the mini-SoC simulate as one workspace in the IDE. Follow MMIO, interrupts, and the program on the Verilator waveform, not only a pass line.

Run it in the Verilog IDE

  1. Open the system lesson in the IDE. The RV32I core and the mini-SoC fabric simulate together.
  2. Run Verilator and trace the program through MMIO: address, load/store data, and the peripheral response.
  3. Interrupts and DMA belong on the waveform next to the instruction stream, not only in a pass/fail line.
  4. Edit the integration RTL, resimulate, and run Yosys on the structural block when you want a netlist.

The lesson is done when the simulation matches IF ID pipeline regs. Change the source, run the Verilog simulator again, and read the waveform without leaving the IDE. Simulation guide · Yosys guide.