Hi,
Anyone can tell me how I can know whether I need to use "using" attribute or not? Attribute "using" ranges 0-3, So which number I have to select? I read Cx51 user guide, it states that:
The using attribute may not be used in functions that return a value in registers. You must exercise extreme care to ensure that register bank switches are performed only in carefully controlled areas. Failure to do so may yield incorrect function results. Even when you use the same register bank, functions declared with the using attribute cannot return a bit value.
Unfortunately, I cannot get point.
Thanks, pak