> On 2017-11-04, at 16:56, smf <smf@null.net> wrote: > > On 04/11/2017 14:38, silverdr@wfmh.org.pl wrote: >> Amiga is a different beast/story [than the 8bitters like C64] because neither 50 nor 60Hz is actually PAL (nor NTSC) in correct terms. > I'm not entirely convinced that even composite video comes under NTSC or PAL, which were originally RF broadcast video standards. You mean the composite one coming out of the Amigas? Can't confirm either. Never used those for anything. I recall A1k2 used an off-the-shelf encoder chip (by Sony if I remember correctly) but can't say anything about how well it did the job in terms of standard compliance. > The c64 doesn't output legal NTSC or PAL in any case, which causes problems for some modern TV's. You can tell me about this particular subject ;-) >> The 64 has to be either PAL or NTSC due to the fact that the integral, internal hardware encodes colour into chroma line and one can't put his fingers on any other form of the signal. > If there was a cost advantage to including both PAL and NTSC chroma in one package, then commodore could have done so. Probably yes, but I was more about external (to VIC chip) encoding from YUV/RGB rather than putting both PAL and NTSC in. In such case I hardly see a chance of having any cost advantage by putting more stuff inside a chip rather than removing as much as possible.. > Amiga's are either PAL or NTSC too, some have composite video output which is one or the other. That's correct, although - as I said - I never had any non-PAL Amiga and never used the composite output for anything. Except maybe testing for function when repairing the computers :-) > The others still have different system clocks which match the video standard. You can't take an "NTSC" amiga and make it display a valid PAL signal, without modifying the hardware so that it's a "PAL" amiga. Which (at least the other way around NTSC out of "PAL" Amiga) as I wrote in the other post I was doing for living some very good time ago. -- SD! - http://e4aws.silverdr.com/ Message was sent through the cbm-hackers mailing listReceived on 2017-11-04 17:00:31
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