PPDEBUG: Sets and Clears the Bits on the Printer Port

PPDEBUG.ASM is an assembly language code module that
provides C-callable services to set and clear the bits on
the printer port.

PPDBG.INC is an assembly language include file that
provides macros to assembly language code modules.

These modules demonstrate the concepts discussed in the
"Use Your Printer Port to Measure System Timings"
technical article on the Microsoft(R) Developer Network
CD.

KEYWORDS: CD3
