On 17 Sep 2003 at 18:44, Alan Cave wrote:


>
> from QBasic you can use OUT with either hex or decimal arguments but hex
> arguments must be preceded by &h eg OUT(&h378,255) would write all ones
> to the data bits of (usually) LPT1
>
Oops, that should have been
OUT &h378,255
or
OUT &h278,&hFF
if you prefer to stick with Hex throughout

and for reading
data = INP(&h378)

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