🚀 go-pugleaf

Hello,
	I am fairly new to the world of pc's and hardware dependent
programming. The question I am about to ask has probably been discussed
in depth before so if someone has the info archived I'd appreciate it
they would e-mail it to me.

	I am writing a graphics application and understand that to do
flicker free animation one should do the screen update during the
verticle retrace period. I believe I have a fairly good idea of catching
the virtcle sycn pulse by setting it to cause a level 2 interrupt in
turboC. What I am not clear on is how does one determine how much time
one has to draw i.e., how many assembly instructions can I run. Since
different instructions take different amounts of time has anyone come
up with a method to determine when to stop updating the screen? 


..Rajiv