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Re: NTSC Emulation
- Subject: Re: NTSC Emulation
- From: Michael J. Mahon <mjmahon@aol.com>
- Date: Tue, 25 Jan 2011 13:27:20 -0600
- Newsgroups: comp.sys.apple2
- References: <2011012512253232311-wsspammy@gmailcom>
- User-agent: NewsTap/3.2 (iPhone/iPod Touch)
- Xref: g2news2.google.com comp.sys.apple2:22035
Sheldon Simms <wsspammy@gmail.com> wrote:
> On 2011-01-25 04:12:18 -0500, Michael J. Mahon said:
>
>> I was hoping that by making it table-driven, it would become trivial
>> to add faithful NTSC monitor emulation to almost any emulator--as long
>> as it processes all video with a simulated 14.3MHz dot clock (560x192).
>
> Any emulator that doesn't use a simulated 14.3 Mhz (at least) dot clock is
> not emulating Apple II video at all, well except for maybe the rev. 0 Apple II.
>
> I'm going to try out the table approach, using my current code for now.
> When it's working I'll get back to you about improvements in the DSP code.
>
>>> The saturation is too low on the real //e monitor.
>
> That's how I actually use it. When it's brighter text is so unpleasant
> to look at (in graphics mode).
Yes, which is why a color-killer is so important. And why many also had a
monochrome monitor for text work. ;-)
-michael - NadaNet 3.1: http://home.comcast.net/~mjmahon