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Alkatraz protection systemI recently became interested in the Alkatraz protection system, a very widely used tape protection (a infoseek search returns more than one hundred r…
... ROM for the pilot and sync tones and faster (~560t,~1120t ... -
More Games For Sale N-RMore, probably the last list for today, enjoy.. Box 15 Single Cases Nightflite ? Hewson Nightflite II ? Hewson Ninja ? Mastertronic Ninja Massacre …
...
Rapscallion ? Bug-Byte
Raster Runner ? Mastertronic
Raw Recruit ... -
Grey +2 video output and oddities.I've been experimenting with one of the above that I acquired years ago, but had just been buried at the back of a cupboard. I've connected it up to…
... the output of the vertical sync. signal. My monitor claims ... to use just the composite sync. signal, which I have connected ... to its horizontal sync. input. Turning TR5 round means ... the proper vertical sync. signal is now output too ... -
Collection Worth Saving?Hi, I've recently been reunited with my childhood collection of spectrum items - a boxed +2, original and a couple of Cheetah joysticks, loads of mag…
... Price
Rastan Budget
Raster Runner Budget
Raw Recruit ... -
Precisely timed loops in assemblyI'm looking for a way to make my code stop until the raster has reached the lower screen border (right after having drawn the last pixel line). I und…
... my code stop until the raster has reached the lower screen ... first to wait until the raster reaches the top of the ... -
old PC with Monocrome Monitor Out.So as discussed in the Carboot sale thread, I have brought and old Apricot Xi. It takes a monochrome monitor via a 9 pin D connector. Now I don't ha…
... 0v
4 horizontal sync
5 vertical sync
6 frame ... tech manual:
"Both sync signals are at standard positive ... frequency
of the Horizontal Sync pulses to match the standard ... the frequency of the Vertical Sync Pulses, 72 Hz. The
A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... T-states waiting for the raster beam, about 32K T-states ... racing the raster beam, and over 9K T ... the method to synchronize the raster beam to avoid flickering. Everything ...+2B and RGB colors all brightHi, I wonder if this is something others have experienced.. I connect to my LCD monitor using either RGB or composite cable. I was doing some raster…
... cable. I was doing some raster effect stuff and to my ...Clocks go Forward UK?All morning I forgot that the clocks should have gone forward. I was wondering why my PC was out of sync with my wall clock. :oops:
All morning I forgot that the clocks should have gone forward. I was wondering why my PC was out of sync with my wall clock. :oops:BIFROST* ENGINE with Spectrum 128K support is out!The BIFROST* ENGINE release 1.1 is finally available, now providing also support for all Spectrum 128 models. You can download it from here: [url]ht…
... much harder to achieve perfect raster beam synchronization, so there would ...Would this work for Scart blanking in +3?I was looking at RGB to Scart cable solutions over at CPCWiki. Theres [URL="http://www.cpcwiki.eu/index.php/TV_SCART_cable#Alternative_RGB_Wiring"]o…
... "]one[/URL] that takes the sync signal (pin 4) from Amstrad ... />
In +3, the composite sync is feeding the composite pin ... blanking pin to supply the sync signal one-way and add ...ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... , write, close, opendir, readdir, seek, sync, fstat, getcwd, chdir, unlink...
Raster Runner inspired by Tron[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0004037[/url] Could well be inspired by the movie [URL="http://us.imdb.com/Title?0084827"]Tron…
[url]http://www.worldofspectrum.org/infoseekid.cgi?id=0004037[/url]
Could well be inspired by the movie [URL="http://us.imdb.com/Title?0084827"]Tron[/URL], like a similar game, [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0005868"] ...Spectrum +3 into a Microvitec CUB 452 MonitorSo nearly had this working! Had a lead made up for me that should have worked but the wiring was a bit off, after a bit of messing around and search…
... and blue, trouble is the sync is off and its scrolling ...Ferguson MA20 via SCART to modern TVHello, I am a newbie here but I visit this forum on regular basis to find interesting informations about computers of my life - Speccies. I have a s…
... />
3) How about "inverted sync" signal mentioned at this page ... this is negative or positive sync ?
If my plasma TV ... ]http://www.twobits.com/RGB/sync.html[/url]
I ...Low level microdrive programmingSo I'm on my lunch break trying to find out about low level microdrive programming (without using IF1 ROM). I see one can use port 0xe7 to read and w…
BIFROST* Advanced Programming - part 1In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. …
In BIFROST*, it's much easier to just make changes in the tile map and let the engine automatically draw & animate everything in multicolor for you. Even so, sometimes experienced developers may decide to access BIFROST* internal routines directly, for ...BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…
BIFROST* Advanced Programming - part 3This new demo demonstrates the BIFROST* built-in sprite support that I mentioned before. In BIFROST*, "sprite tiles" are 2 special tiles that BIFROS…
... = -dcolEnemy;
}
// frame sync
asm("halt");
// frame sync
asm("halt");
}
48K+ losing horizontal syncHello! I've got this 48K plus in perfect cosmetic condition and it works well except for when it gets a tad bit warmer the image rolls around. That w…
Hello! I've got this 48K plus in perfect cosmetic condition and it works well except for when it gets a tad bit warmer the image rolls around. That would happen after about 20 minutes after powered on.
Any advice?BIFROST* Advanced Programming - part 4In previous posts I demonstrated how to move multicolor tiles up and down smoothly by a single pixel, and sideways by an entire char (8 pixels). Thi…
ZX-Paintbrush version 2.2.9 releasedDear forum readers and ZX-Spectrum emulator friends, today I released ZX-Paintbrush version 2.2.9 with interesting new features (small ones but I th…
... maps.[/LIST]
[LIST]New raster icons "16x16 pixels" and "256x192 ...BIFROST* Advanced Programming - part 5In my [URL="http://www.worldofspectrum.org/forums/showthread.php?t=40437"]previous post[/URL] I demonstrated how to move multicolor images smoothly i…
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…
... ease split screen implementation, or raster effects, hardware sprites, hardware scroll ...Beepola questionshope this is the right place :) Is there a way to make the playing of the exported file wait until a button is pressed. I would like to sync the mus…
... .
I would like to sync the music, so if there ...BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... /> while(1) {
// frame sync
asm("halt");
// frame sync
asm("halt");
Revisiting Spectrum CPU clock regenerationWarning: This post will be a bit nerdy :-) Some time ago, I experimented with phase locked loop circuits as a possible way to regenerate the Spectru…
... you wanted to keep in sync with the video clock, ... ]http://photo.alioth.net/DPLL/sync.png[/img]
sync.
Actually, the ... is back in perfect sync with the 3.5469 ... 're back in perfect sync with the ULA only about ...Velesoft's ZX128+2 with 1.5MB memoryMy old ZX128+2 PROFI (grey model - spanish version) for sale here: [url]http://aukro.cz/super-zx-spectrum-128-2-1-5-mb-i2738723874.html[/url] Back s…
... 9 with boosted signals RGBI,sync,35MHz,GND,+5V (ideal for ...48k faultyHi guys! I have a 48k that, currently, presents 2 problems: 1 - Can?t sync to TV correctly. I get a lot of noise and the characters appear to be inc…
... problems:
1 - Can?t sync to TV correctly. I get ...
