Educational RISC-V 32I simulator with focus not on performance but on understanding the architecture and hardware.

• Loading/Run a rv32i elf executable (with some special compile options)
• SerialPort simulation simple char output
• all rv32i instructions
• machine mode only

• exceptions and interrupts
• CSR registers
• Hardware timer & interrupt
• Hardware timer pending reset (currently target software reset)
• many RO / RW CSR constrains

• supervisor and user modes
• A and M extension instructions
• better (graphical) device options

My goal is to develop a good to understand and expandable simulation. That can run a simple embedded like OS. And maybe even dynamically load rv32i executables into this running and simulated hardware and OS.

• riscv-gnu-toolchain (newlib arch=rv32i) (https://github.com/riscv/riscv-gnu-toolchain)
• libelf