Assembly Language Help (alang.hlp) (Table of Contents; Topic list)
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documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
System I/O Instructions
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     Select an instruction for more information.
 
     Instruction     Description
 
     IN              Input from port
     INS             Input from port to string (186+)
     OUT             Output to port
     OUTS            Output string to port (186+)
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