[time-nuts] Lady Heather's Disciplined Oscillator (Thunderbolt) Software

[Mark Sims]

The program attempts to allocate quite a bit of memory  for its plot and ADEV buffers.  It assumes it is running in a 640K memory space under DOS/WIN98.   I suspect that WIN2000, etc have more overhead,  hence the memory/startup errors.  The buffers are  allocated as old style HUGE memory arrays (so that  they can be> 64kb) that manipulate the real mode X86 memory segment registers with each access...  might also cause problems with the later operating systems. 

The supported graphics video mode is defined at compile time.  There are compile options for 800x600,  1024x768, or 1280x1024 res screens.  You can also run it in a text only mode with the /T command line option.  If you can't get it working with a 1024x768 screen,  I can send you the version compiled for a 800x600 screen (but  you lose a bit of goodness with the smaller screen).  You don't gain a whole bunch of goodness going to 1280x1024 (just a bigger graph area).

The program uses the old school technology so that it is easy and cheap to dedicate a $20 surplus laptop as the GPSDO controller.  I am using it with Compaq Armadas (200 MHz) and Fujitsu Milan (90 MHz) laptops.
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