I have a youtube video and a github repo with the code. It demonstrates building and running your guest code (the assembly you wrote) in the QEMU host. It works with the Bash Shell, WSL2 or Linux. It also shows how to step into the startup code by debugging QEMU from the "reset" until the "cpu_exec" handing off execution to the guest code.

Video:https://youtu.be/EshBUwpxtIs

Code and instructions: https://github.com/stevemac321/riscv-asm