rvcore is a single-core RISC-V emulator that implements the RV32IM ISA, except for the FENCE and EBREAK instructions, which are currently NOP.

Build instructions

1. To build, CMake and a compiler that supports C++20 is required (for Windows, Cygwin is required)

2. Dependencies: libsdl3-dev / sdl3-devel

3. Run

       mkdir build
       cmake -B build -DCMAKE_BUILD_TYPE=Release
       cd build
       cmake --build .
   

Build instructions for doomgeneric

1. Clone https://github.com/lalitshankarch/doomgeneric
2. riscv64-unknown-elf-gcc or the riscv64-gnu-toolchain configured with ./configure --with-multilib-generator="rv32im-ilp32--" must be installed
3. Navigate to doomgeneric and run make

Milestones

• Run flat binaries written in assembly language

• Run flat binaries written in C language

• Run ELF binaries (binaries with a single PT_LOAD segment work)

• Implement the newlib stubs needed to run DOOM

• Get DOOM to boot

• Make DOOM playable

• Implement the M extension