On Thu, 30 Aug 2001, B. Watson wrote:
> Does anyone know, is one scanline *exactly* 76 cycles? I.E. if I write a
> scanline loop with no STA WSYNC in it, that takes exactly 76 cycles (with
> dey;bne start_of_loop as the last 5 cycles), will the Atari stay in sync
> with the TV picture, or are the WSYNCs absolutely necessary? The emulators
> all handle it fine, but will a real Atari be able to do this?
Yes, you can do this. Strobing the WSYNC register is just a lazy way to do
it. It also only takes 2 bytes. Delay loops and whatnot waste valuable ROM
space. :)
-Chris
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