Simulation on RISC-V

This repository houses (another) RV32I emulator developed in C++ Builder and a simple visualizer to inspect RISC-V registers and memory updates.

ball.c is the source code of program used in visualizer.

Compile ball.c in a Debian-based Linux distribution with Clang compiler and generate the assembler (.s) file. Than navigate to Lucas Teske's RISC-V Online Assembler and compile the .s file. Finally put the "Objdump Code Disassembly" content in visualizer executable and run the simulation.

Binary can be downloaded from Made Network website.

Table of Contents

• Building ball.c and run the simulation
• Building the visualizer
• Binary download
• Dependencies and Credits
• License

Building ball.c and run the simulation

1. On a Debian-based Linux distribution install Clang:

sudo apt install -y clang

2. Then compile ball.c with Clang:

clang --target=riscv32 -march=rv32i -static -S -fno-addrsig ball.c

3. Open ball.s file and cut the 2nd and 3rd lines in .text section:

    .attribute 4, 16
    .attribute 5, "rv32i2p0"

4. Then navigate to Lucas Teske's RISC-V Online Assembler https://riscvasm.lucasteske.dev/# and put ball.s file in the assembly code text area (on the top-left).

5. Instead, in the Linker Script parameters (on the right) change these parameters:

__heap_size   = 0x200;
__stack_size  = 0x800;

MEMORY
{
  ROM (rwx) : ORIGIN = 0x00000000, LENGTH = 0x01000
  RAM (rwx) : ORIGIN = 0x00001000, LENGTH = 0x01000
}

6. Click the Build button and copy the Objdump Code Disassembly.

7. Open SimulationOnRiscV.exe visualizer and paste the binary + assembly code in the input area on left bottom.

8. Click the Load ASM button.

9. Click the Run button.

Building the visualizer

From the src directory open and compile the SimulationOnRiscV.cbproj project with C++ Builder.

Binary download

(Not signed) binary is available at: www.madenetwork.net/riscv

• Exe name: SimulationOnRiscV.exe
• Size: 9,357,379 bytes
• MD5: 3717cd415754a9b9e1f29ae2c8471d48
• SHA1: 9ef9b71d244460328c4f842ab8dc6035845d55af
• SHA256: 6725c30137e3c72826bc3ff070b5fd3cb60cccb0387faa8b90a67ed0333c156e
• SHA512: 7d4ff07e1e998d65a72164f1958142cec415df7e176488b4531c76bdccc2b44e6dd62bd441279ae5ddceeb607e1bd1eac56d1e8d0d50685001cde35b7b9d8f57

Dependencies and Credits

• Lucas Teske's RISC-V Online Assembler
• GNU Compiler Collection for ball.c sample file

License

This repository is licensed under the GNU GPLv3.

The RISC-V trade name is a registered trademark of RISC-V International.