neorv32

neorv32 with Makefiles compatible with MSYS2 64 on Windows(ONLY ASSEMBLY CODE) and Linux(ASSEMBLY, C, and CPP).

1. Windows Installation, and test(Assembly code).

2. Linux Installation, and test(C code).

1. Windows Installation

You must download the latest RISCV precompiled binaries for your platform from: https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/

in this case the architecture x64 for windows binaries(https://github.com/xpack-dev-tools/riscv-none-elf-gcc-xpack/releases/download/v13.2.0-2/xpack-riscv-none-elf-gcc-13.2.0-2-darwin-x64.tar.gz), then extract these under the folder C:\riscv_precompiled

1. clone or download this repository on your windows machine.

   $ git clone https://gitea.squirrelnut.synology.me:5001/FPGALover/neorv32
   

2. download and install MSYS2(msys2-x86_64-20240113.exe) --> https://www.msys2.org/

3. once MSYS2 is installed, run MSYS2, and run the command(pacman -S mingw-w64-ucrt-x86_64-gcc)

   $ pacman -S mingw-w64-ucrt-x86_64-gcc
   

4. Select ALL dependencies by pressing Enter and select Y[yes].

   resolving dependencies...
   looking for conflicting packages...
   
   Packages (15) mingw-w64-ucrt-x86_64-binutils-2.41-2
               mingw-w64-ucrt-x86_64-crt-git-11.0.0.r216.gffe883434-1
               mingw-w64-ucrt-x86_64-gcc-libs-13.2.0-2  mingw-w64-ucrt-x86_64-gmp-6.3.0-2
               mingw-w64-ucrt-x86_64-headers-git-11.0.0.r216.gffe883434-1
               mingw-w64-ucrt-x86_64-isl-0.26-1  mingw-w64-ucrt-x86_64-libiconv-1.17-3
               mingw-w64-ucrt-x86_64-libwinpthread-git-11.0.0.r216.gffe883434-1
               mingw-w64-ucrt-x86_64-mpc-1.3.1-2  mingw-w64-ucrt-x86_64-mpfr-4.2.1-2
               mingw-w64-ucrt-x86_64-windows-default-manifest-6.4-4
               mingw-w64-ucrt-x86_64-winpthreads-git-11.0.0.r216.gffe883434-1
               mingw-w64-ucrt-x86_64-zlib-1.3-1  mingw-w64-ucrt-x86_64-zstd-1.5.5-1
               mingw-w64-ucrt-x86_64-gcc-13.2.0-2
   
   Total Download Size:    49.38 MiB
   Total Installed Size:  418.82 MiB
   
   :: Proceed with installation? [Y/n]
   [... downloading and installation continues ...]
   

5. after the installation is completed, add the Path "C:\msys64\ucrt64\bin" under the enviroments variable on Windows.
   

6. open a cmd and run the command (gcc --version)

   $ gcc --version
   gcc.exe (Rev2, Built by MSYS2 project) 13.2.0
   

7. go to the folder C:\msys64\ucrt64\bin make a copy of the file mingw32-make.exe and name it make.exe
   

8. go to the directory where you cloned or donwloaded this repository to the directory neorv32\sw\example\demo_blink_led_asm

   $ cd neorv32\sw\example\demo_blink_led_asm
   

9. run the command make all (make sure all antivirus are disabled)

   $ make all
   "Memory utilization:"
   text    data     bss     dec     hex filename
       432       0       0     432     1b0 main.elf
   "Generationg APP BIN"
   "OK - APP BIN"
   "Generationg APP IMG VHD"
   "OK - APP IMG VHD"
   "Generationg RAW HEX"
   "OK - RAW HEX"
   "Generationg RAW BIN"
   "OK - RAW BIN"
   "Generationg BOOT IMG VHD"
   "OK - BOOT IMG VHD"
   "Memories Generated"    
   
   

10. list the generated files and you will see

    $ ls -l
    -rw-rw-rw-  1 adriz 0 6781 2024-02-24 01:45 main.asm
    -rw-rw-rw-  1 adriz 0  432 2024-02-24 01:45 main.bin
    -rw-rw-rw-  1 adriz 0 8708 2024-02-24 01:45 main.elf
    -rw-rw-rw-  1 adriz 0 5456 2024-02-23 16:14 main.S
    -rw-rw-rw-  1 adriz 0 2764 2024-02-24 01:45 main.S.o
    -rw-rw-rw-  1 adriz 0  274 2024-02-24 01:16 makefile
    -rw-rw-rw-  1 adriz 0 1882 2024-02-24 01:45 neorv32_application_image.vhd
    -rw-rw-rw-  1 adriz 0 1878 2024-02-24 01:45 neorv32_bootloader_image.vhd
    -rw-rw-rw-  1 adriz 0  444 2024-02-24 01:45 neorv32_exe.bin
    -rw-rw-rw-  1 adriz 0  432 2024-02-24 01:45 neorv32_raw_exe.bin
    -rw-rw-rw-  1 adriz 0  972 2024-02-24 01:45 neorv32_raw_exe.hex
    

11. you have been able to Assemble assembly code for the RISCV on windows.

2. Linux Installation

1. Open shell and run:

   sudo apt-get update
   sudo apt-get install autoconf automake autotools-dev curl python3 python3-pip libmpc-dev libmpfr-dev libgmp-dev gawk build-essential bison flex texinfo gperf libtool patchutils bc zlib1g-dev libexpat-dev ninja-build git cmake libglib2.0-dev
   git clone https://github.com/riscv/riscv-gnu-toolchain
   cd riscv-gnu-toolchain/
   mkdir build/
   cd build
   sudo mkdir /opt/riscv32im
   sudo chown $USER /opt/riscv32im
   ./configure --with-arch=rv32im --prefix=/opt/riscv32im
   make -j$(nproc)
   

2. clone this repository.

3. go to the directory where you cloned or donwloaded this repository to the directory neorv32\sw\example\demo_blink_led_asm

   $ cd neorv32\sw\example\demo_blink_led
   

4. run the command make all

   $ make all
   Memory utilization:
   text    data     bss     dec     hex filename
   1012       0       0    1012     3f4 main.elf
   Executable (neorv32_exe.bin) size in bytes:
   1024
   Installing application image to ../../../rtl/core/neorv32_application_image.vhd
   
   

5. list the generated files and you will see

   $ ls -l
   -rw-r--r-- 1 adrizcorp adrizcorp 18160 Feb 24 01:54 main.asm
   -rw-r--r-- 1 adrizcorp adrizcorp  1012 Feb 24 01:54 main.bin
   -rw-r--r-- 1 adrizcorp adrizcorp  4314 Feb 23 15:08 main.c
   -rw-r--r-- 1 adrizcorp adrizcorp  7696 Feb 24 01:54 main.c.o
   -rwxr-xr-x 1 adrizcorp adrizcorp 42856 Feb 24 01:54 main.elf
   -rw-r--r-- 1 adrizcorp adrizcorp   141 Feb 23 15:08 makefile
   -rw-r--r-- 1 adrizcorp adrizcorp  3704 Feb 24 01:54 neorv32_application_image.vhd
   -rw-r--r-- 1 adrizcorp adrizcorp  1024 Feb 24 01:54 neorv32_exe.bin
   -rw-r--r-- 1 adrizcorp adrizcorp  1012 Feb 24 01:54 neorv32_raw_exe.bin
   -rw-r--r-- 1 adrizcorp adrizcorp  2277 Feb 24 01:54 neorv32_raw_exe.hex
   

6. now you have been able to compile C code for the RISCV processor.

Enjoy!