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Here are asm source codes for parallel port dma and fifo fast transfer of data. They are command line programs for dos and Win95/98. With winio they can be used in WinNT/2000/XP. Transfer rates up to 750 kbytes/sec. Recurrences directories.
Input/output (IO) C library exposing a common API for real mode and permission-restricted access to parallel port under Windows, Linux and MS-DOS operative systems. It also allows pin-by-pin port access.