No Flicker!!

 BBS: Inland Empire Archive
Date: 08-15-92 (06:25)             Number: 181
From: STEVE GARTRELL               Refer#: NONE
  To: RICK PEDLEY                   Recvd: NO  
Subj: No Flicker!!                   Conf: (2) Quik_Bas

   STI - Set (disable) interrupt flag
   RETF - Far return (outta QB data seg back to code seg)
   and
   CLI - Clear (enable) interrupt flag
   RETF - (El ditto)
 ...
     That vertical synch sig is of insufficient duration to
share part of it with system interrupts...|-}
   (Oh, yeah...If I can find a 4 MHz 8086/88 with a VGA system, I'm going to
try that routine on it.  The possibility exists that,
should a flicker be evident on such a system, that moving
the enable interrupts call to _after_ that key PUT will
control it.  At the risk of impacting time keeping,
however.
    I probably will submit it to Dave.  I'd rather risk
rejection, than to see the only source of good QB/PDS
material (with nary a Windows ad) disappear.  And, it's
free...Anybody else out there get my drift??...|-}....)
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