Function sbi_rt::get_marchid

source ·
pub fn get_marchid() -> usize
Expand description

Return value of marchid register in the current environment.

This function returns a value that is legal for the marchid register, and 0 is always a legal value for this register.

This function is defined in RISC-V SBI Specification chapter 4.6. According to the introduction of chapter 4, all base extension functions must success and return no error code.