Hello all,
Just need to know exactly how the function vga_setdisplaystart()
operates. I can think of two possibilities:
a) The page switch takes affect during the NEXT vertical blank.
b) The page switch happens immediatley.
If it works like case "a" then I would do something like this:
vga_setdisplaystart(); // page flip
vga_waitretrace(); // only takes affect now
however if its more like case "b" then I`d do this;
vga_waitretrace(); // wait for the blank
vga_setdisplaystart(); // switch pages
Hope that makes sense,
James
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