dwarfRegisterBytes

    pub fn dwarfRegisterBytes(ctx: *M68k, register_num: u16) DwarfRegisterError![]u8 {
        switch (register_num) {
            0...7 => return @ptrCast(&ctx.d[register_num]),
            8...15 => return @ptrCast(&ctx.a[register_num - 8]),
            26 => return @ptrCast(&ctx.pc),

            16...23 => return error.UnsupportedRegister, // fp0 - fp7
            24...25 => return error.UnsupportedRegister, // Return columns in GCC...?

            else => return error.InvalidRegister,
        }
    }