If the sbbsexec.dll (VDD) load from the exec dir fails, load without a path
specified (e.g .from \windows\System32\).
Do not specify an init function, apparently not supported by Vista -
RegisterModule() fails with AX=1 when an InitFunc is specified.

and virtual UART VDD.
Use FOSSIL function constant macros from fossdefs.h.

debug output.
Added optional debugging of FOSSIL functions (counts number of calls to each).

potential forced yield. This "tames" BRE down to single-digit CPU utilization!

(the "exec" directory) - used if there's no sbbsexec.ini in the current working
directory (e.g. xtrn/somedoor).

function), for program-specific settings in the sbbsexec.ini file.

function.

for use with the COM1/UART virtualization.

wait (return immediately if no data). The SBBSEXEC.DLL VDD_READ operation
blocks, so we must poll status first to see if there's any data to read. <sigh>

block returned in function 0x1b.

arguments.
Returns revision in FOSSIL information block (FOSSIL function 0x1b).
Uses new fossdefs.h to fix "baud_rate" field value in information block and
size of information block (was +1 due to padding).

This may make some obscure FOSSIL programs (e.g. door games) work that
previously would not recognize the Synchronet FOSSIL driver.
(Inspired by Deuce).

define HACKERY to actually use it.
(Note, SEG:OFFSET may be backwards/broken here...)

Consider doing the same for all .h files.
Consider the meaning of sanity.

Added support for naughty FOSSIL programs (e.g. IceEdit and OOII) that call the int14h ISR directly rather than issue an interrupt.

Added intelligent yielding for FOSSIL and DOS I/O programs that poll for input (eliminates CPU hogging).

Eliminated unused code.