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Dot crawl?Hi, As I'm rather new to the hardware of the spectrum, just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube.com/watch?v=_U…
... , just to confirm: is this video showing "Dot crawl" ? [url]https://www.youtube ... of my Speccy + with composite video.
I've read ... -
Dot CrawlHiya, I know this might seem like a stupid question but i`ve seen the term "dot crawl" used a lot on articles about older Spectrums. I wondered if so…
Hiya, I know this might seem like a stupid question but i`ve seen the term "dot crawl" used a lot on articles about older Spectrums. I wondered if someone could explain what it is exactly and how it effects the graphic display. -
interface1discipleanyone manage to virtually connect two emulators running on the same machine? could zx spin be modified to replay two rzx files simultaneously? any o…
... still fighting with real spectrums video display options in order to ... tv picture exact anyone seen dot crawl on an lcd screen - think ... -
ula bookula book is here: [url]http://www.zxdesign.info/book/[/url] can i post sam coupe stuff here - she kind of is a speccy if you stuff the speccy rom i…
... menu screen mimics was called dot crawl:
[url]http://www ... 5x2-to-1 multiplexer saying video enable
this is ... correct? although it is un video contested - or rather slightly less ... a blitter dumping stuff in video ram - would this have ... -
SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... sharp, bright and free from dot-crawl, and equivalent in quality to ... written to the Spectrum?s video RAM, with the active display ... -
Childhood moments with my SpeccyHey everyone. The other day I randomly came across a tumblr page called "Me and My ZX Spectrum" ([url]http://meandmyzxspectrum.tumblr.com[/url]) …
... even prefer using a composite video cable instead of the RGB ... the RF output and the video artifacts and impurities introduced by ... young mind. I thought the dot crawl on the Atic Atac loading ... -
Issue 4S differencesI decided to buy an Issue 4S PCB after reading much about them on here. It was originally in a plus case which didn't come in the sale. I've been run…
... a single transistor composite video mod using a BC549, ... video display at all. The display is pretty good and dot crawl ... the Spectrum video circuit already operates the video inverter transistor ... With a single transistor composite video mod, no further changes ... -
Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…
... the video output (CVBS) of these machines show the same dot-crawl like ... -
Character wobbleHello, I have an Issue 2 board which shows vertical character wobble. This happens for a few minutes followed by a few minutes of character sta…
... 't correlate with any horizontal dot crawl.
The latter is adjustable ... has a transistor video mod. This provides composite video to a
video
setup.
I ... -
One emulator feature it would be good to haveI'd like to see emulators (and SCR-to-proper-bitmap-format converters) have a config option for colours: "Realistic" or "Bright". The trouble with b…
... and demonstrates the true internal video signal of the speccy, you ... what you mean.
plus dot crawl etc, but that's not ... -
Speccy 128 QuestionMainly for the experienced speccy resurecters around these parts. Have you ever had a Speccy 128 with a borked TEA2000 video chip? The reason I ask…
... image, razor sharp and no dot crawl.
So the upshot ... work, have routed the comp video through to an unused pin ... -
Speccy 128 QuestionMainly for the experienced speccy resurecters around these parts. Have you ever had a Speccy 128 with a borked TEA2000 video chip? The reason I ask…
... image, razor sharp and no dot crawl.
So the upshot ... work, have routed the comp video through to an unused pin ... my TVs!
Apart from video output, I'm pretty sure ... -
emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... convincing ula interference but no dot crawl and ula snow - though ... been used to encode avi video files of the emualtor ... back into the video input - composite or s-video unless your ... delay effect and crosstalk synchronization dot crawl effects using the ageia/ ... -
emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... notcontinued in...)or crosstalk synchronisation dot crawl tau ceti underground on cyberun ... Composite!
I shun S Video!
Shun them, it ... -
emulatorsplease help can we see clearly which emulator emaulates which hardware is there any that has a pc function key for the mulitface nmi button and the +…
... convincing ula interference but now dot crawl and ula snow - though ... to phosphorous delay and the dot crawl was some kind of ... 479292]any chance of some video of wokring dma for ... smooth scorlling ? pixel sprites? interlaced video 384x256 with tv 90degrees to ... -
How to clean up video output to TFT LCD - Spectrum 48kHi, I hope that there is an easy answer to this question. I have modded the RF socket on my 48k Spectrum to output composite video as described in t…
... " of the 48K Spectrum's video circuits that will leave you ... to get rid of (like dot crawl). Also composite will never be ... -
How to clean up video output to TFT LCD - Spectrum 48kHi, I hope that there is an easy answer to this question. I have modded the RF socket on my 48k Spectrum to output composite video as described in t…
Additional: I think the "shimmer" you're talking about is the dot crawl I mentioned earlier. No, you can't get rid of it; you need a Spectrum 128K+ or later for a dot-crawl-free display. The dot crawl is a result of how the timing circuits work for video. -
How to clean up video output to TFT LCD - Spectrum 48kHi, I hope that there is an easy answer to this question. I have modded the RF socket on my 48k Spectrum to output composite video as described in t…
... 2008/11/zx-spectrum-composite-video-mod.html"]http://womblesretrorepairshack. ... sits between the boards Video input and the central ... . It still has the dot crawl described by Winston but it ... php?t=31463&highlight=video+converter"]http://www.worldofspectrum. ... -
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... 32K (and even 16K) of video memory (even split into several ... seeing on Speccy games was Dot crawl, and that *was* a design ... -
Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …
... signal with all the attendant dot crawl and artifacts. Sure it's ... inputs bar the HDMI, component video and VGA....it is present ... , SCART, composite and even S-video inputs - though I doubt it ... -
Modern LCD TV for my Spectrums - some advice neededHaving recently purchased some Spectrums for my collection, which were succesfully tested on two old and reliable CRT TV's daily used by my parents, …
... signal with all the attendant dot crawl and artifacts.[/QUOTE]
If ... inputs bar the HDMI, component video and VGA....it is present ... , SCART, composite and even S-video inputs - though I doubt it ... -
QR Codes - CreatingQR codes, distinctive usually black on white square patterns in the form of my avatar, are becoming ubiquitous at the moment. They are on leaflets fr…
... even be read in inverse video and through a mirror or ... gets crumpled, or you get dot-crawl, it should still work. Also ... -
CSS has been Rogeredcomp.sys.sinclair has just been rogered. I make do with a summary when anything happens and activity shot up on Friday. Turns out to be the usual qu…
... as this almost has the dot crawl effect in the earlier email ... 5x2-to-1 multiplexer saying video enable
this is not ... correct? although it is un video contested - or rather slightly less ... a blitter dumping stuff in video ram - would this have required ... -
CSS has been Rogeredcomp.sys.sinclair has just been rogered. I make do with a summary when anything happens and activity shot up on Friday. Turns out to be the usual qu…
... as this almost has the dot crawl effect in the earlier email ... 5x2-to-1 multiplexer saying video enable
this is not ... correct? although it is un video contested - or rather slightly less ... a blitter dumping stuff in video ram - would this have required ... -
CSS has been Rogeredcomp.sys.sinclair has just been rogered. I make do with a summary when anything happens and activity shot up on Friday. Turns out to be the usual qu…
... as this almost has the dot crawl effect in the earlier email ... 5x2-to-1 multiplexer saying video enable
this is not ... correct? although it is un video contested - or rather slightly less ... a blitter dumping stuff in video ram - would this have required ... -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... /> All the internal timings, including video, are generated from this crystal ... 8 to give the composite video colour freq. Oh, divide by ... colour composite video, but there will be terrible amounts of dot crawl and ... -
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... to generate a proper colour video signal. At first I ... as seen from the composite video output of the ULA replacement ... present in composite video signals (i.e. dot crawl). The scanlines are ... clean picture, with nearly no dot crawl, or thick edges between ... -
+2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…
... have quite a lot of dot crawl since the colour subcarrier wouldn ... .54MHz CPU clock (7.09MHz dot clock) and the pixels and ... of phase constantly. The S-Video outputs would have no such ... -
+2 (Grey) S-video?I have a pretty good Composite/S-video to VGA adapter that does a nice work of running my retro machines on an old LCD screen. However, it looks best…
... have quite a lot of dot crawl since the colour subcarrier wouldn ... .54MHz CPU clock (7.09MHz dot clock) and the pixels and ... of phase constantly. The S-Video outputs would have no such ... -
Composite mod - which one?On all my 16K/48K and Plus Spectrums I use to carry out the "Womble" Composite mod: [URL="http://womblesretrorepairshack.blogspot.de/2008/11/zx-spect…
... than possible using composite video. It eliminates dot crawl and ensures the main ...
