Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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 INP(port%)
 OUT port%, data%
 
 Usage Notes
   ■ INP and OUT give a Visual Basic program direct control over the system
     hardware through the I/O ports.
 
   ■ INP and OUT must be used carefully because they directly manipulate
     the system hardware.