Subject: Re: [stella] TIA VSYNC and VBLANK From: Adam Wozniak <adam@xxxxxxxxxxxxxxxx> Date: Tue, 5 Oct 2004 08:30:19 -0700 (PDT) |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On Tue, 5 Oct 2004, Thomas Jentzsch wrote: > Adam Wozniak wrote: > > This may sound dumb, but what is the difference between the two? > > VBLANK simply disables the display of all objects (incl. the background!). > > VSYNC is used for controlling the vertical snyc, which defines the framerate. So would it be correct to say: VBLANK forces the TIA L0,L1,and L2 outputs to zero/ground, and the COL output to zero degrees phase shift. VSYNC is used to generate the composite sync output SYN. (how, exactly? is SYN simply VSYNC xor'd with the horizontal blank?) - -- adam@xxxxxxxxxxxxxxxx http://cuddlepuddle.org/~adam KG6GZR http://cuddlepuddle.org/~adam/resume.html "You think grown-ups have it all figured out? That's just a hustle, kid. Grown-ups are making it up as they go along just like you. You remember that, and you'll do fine." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFBYr4GyvXf5Z0z5zERAphbAKCdxdwTDC1kGwDObJtbETgWuBKCEACfcp9p YI6GZy9sXTOFxiqQAwMWmfI= =ZDvE -----END PGP SIGNATURE-----
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Re: [stella] TIA VSYNC and VBLANK, Thomas Jentzsch | Thread | Re: [stella] TIA VSYNC and VBLANK, Eric Ball |
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