BIOS initialization and DOS device driver initialization fixes. Parallel port and serial port BIOS and DOS registration fixes. Parallel port emulation now allows you to specifically assign the Disney Sound Source in the [parallel] section to a specific port, in addition to using the widely used disney=true setting. 3Dfx/Voodoo PCI registration fixes, card now shows up in enumeration again. External patch provided by ghoul8765 to fix 3Dfx MMIO access.