riscv cpu registers

riscv cpu registers

pub fn read(comptime reg_name: []const u8) u64 {
    return asm volatile("csrr %[ret], " ++ reg_name : [ret] "=r" (-> u64));
}

pub fn write(comptime reg_name: []const u8, data: u64) void {
    asm volatile("csrw " ++ reg_name ++ ", %[data]" : : [data] "r" (data));
}