World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.008s
<1…15161718192021…34>
  • memory chips spectrum +Hi with regards to memory chips the ones in there are tms4116 in the lower memory.there is some on ebay MCM4116BP20 can i mix these with tms ones or …

    ... anything about the timing requirements for the processor or ULA to access ... required for the processor or ULA to clock data out? I ...
    zx2628 zx2628 January 2010 Hardware
  • Best Spectrum game from 2009Ok, its almost 2010, and we have to decide which was the best game this year :) Miles Mad Mission [url]http://www.worldofspectrum.org/infoseekid.cg…

    ... similar. The lack of memory contention gives them a boost over ... modes or anything (ahem - Timex, ULA Plus).

    It's ...
    joefish joefish January 2010 Games
  • Can ULA kill other componentsIn my search for a problem I used a ULA6C001E-7 on a board that had a ULA6C00IE-6 chip. Q1) Should this have worked? Q2) After this experiment both …

    ... there is a small timing difference between both ULA's.
    A2 ... picture. Don't blame the ULA too soon, there is videoRAM ...
    roko roko January 2010 Hardware
  • ULA Plus and Interlace.May be a bit late to suggest this, but here goes. Did the original Speccy ULA actually output a proper PAL interlaced image, with timing pulses on a…

    ... Speccy ULA actually output a proper PAL interlaced image, with timing pulses ... .

    [quote]Now, does ULA Plus generate a proper interlaced ...
    csmith csmith January 2010 Hardware
  • ULA Book Price - Feedback PLEASEThe book is coming together very nicely, and I am in the process of kicking off all the administration tasks like getting ISBN numbers and setting up…

    ... /> csmith: No, but timing was crucial to ULA development as can be ...
    Jumping Stack Jumping Stack February 2010 Sinclair Miscellaneous
  • iXpectrum 1.1 added touch keyboard and ULAplus support.Hi, a new release for iXpectrum. ;) I added a touch keyboard in landscape and portrait mode. I think it is very usable and let you play text adventu…

    ... is useful to show some ULA effects. The main people works ... 3gs or you could disable contention mode to gain some fps ...
    Seleuco Seleuco February 2010 Emulators
  • Spectrum 2-3 times more powerfull than MSX?![url]http://www.youtube.com/watch?v=2-kI0urN9tI#t=8m18s[/url]

    ... /O ports. There are some timing requirements to observe when video ... is quicker even allowing for contention. The MSX also has a ...
    joefish joefish March 2010 Sinclair Miscellaneous
  • Have a real 48k Speccy? yes ? I need your help.Im looking to run this quick test on as many [COLOR="Red"](only)[/COLOR] 48k Spectrums as possible [B][COLOR="Red"]files moved[/COLOR][/B] [URL="ht…

    ... of tests to check the contention values I added to our ... were built to check the timing though I quickly found the ... to check for "early/late" timing to find some late machines ... theres an option for late timing tick it and run again ...
    Richard_Butler Richard_Butler March 2010 Development
  • IM2 Loading on +3EHi there Speccy Guru's, As some of you know, I've spent a while building the ultimate image for +3e, it's currently at 6000+games and demos and i've…

    ... the Wolfenstein (and other timing sensitive) parts (Pentagon Timing ofcourse), otherwise works ... space of time, while the ULA is mid-scanline). I won ...
    gasman gasman April 2010 Development
  • Resolution & Memory Question ...Hi, I'm hoping someone with some experience writing an emulator, or a vast knowledge of all things Spectrum can help me answer the following questio…

    ... screen is being displayed, the ULA fetches the screen data from ... RAM, but without the interfering contention.

    The screen starts ...
    joefish joefish April 2010 Emulators
  • Vic 20 game better than Speccy version?Years ago, when I had my Vic 20 I had a game called Blitz, it was on the welcome tape in fact. Very simple game, but strangely addictive. For those t…

    ... in A'F').

    ULA II support has been added ... . It seems to be a timing issue rather than a bug ...
    Jimmy Jimmy April 2010 Games
  • Vic 20 game better than Speccy version?Years ago, when I had my Vic 20 I had a game called Blitz, it was on the welcome tape in fact. Very simple game, but strangely addictive. For those t…

    ... in A'F').

    ULA II support has been added ... . It seems to be a timing issue rather than a bug ...
    Alien 8 Alien 8 April 2010 Games
  • DivIDEo - streaming video on the DivIDEThis has been a bit of a personal holy grail for years and years, so I'm very pleased to announce the release of DivIDEo, my streaming video system f…

    ... the quality of sound (perfect timing)[/QUOTE]

    I *think ... only place I run into contention is when writing to screen ...
    gasman gasman May 2010 Announcements
  • BUZZSAW+ Demo No. 3Right, another demo of BUZZSAW+. [URL="http://www.joefish.co.uk/speccy/Joefish_Buzzsaw_Demo_3.tap"]Joefish_Buzzsaw_Demo_3.tap[/URL] The default con…

    ... else was going on about ULA+ support when I posted the ... etc. to get the colour timing right though. If I was ...
    joefish joefish June 2010 Development
  • So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…

    ... of working if placed between ULA's Z80 clock output, ... clocks which are synchronized with ULA. That could simplify clock switch ... divided clock - remember that ULA's clock output isn't ... MHz. version sounds nice, but timing of control signals may change ...
    RetroTechie RetroTechie June 2010 Hardware
  • So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…

    ... previously divided clock - remember that ULA's clock output isn't ... models would be if the ULA clock stopping wound up inverting ... number of T-states that contention lasts without getting unacceptably far ... br />
    As for the ULA's clock output, it actually ...
    Winston Winston June 2010 Hardware
  • KING OF PONG: Pong revisitedHello everybody. I'm proud to announce you that my last personal project for the ZX Spectrum, "KING OF PONG" is available to download here at WOS si…

    ... (that is, mainly when the ULA is retracing the overscan border ... any time driven by the ULA, and "interframe blending" to interpolate ... my own proofs of perfect timing at *exactly* 50Hz. These include ...
    Ricardo Cancho Ricardo Cancho June 2010 Development
  • KING OF PONG: Pong revisitedHello everybody. I'm proud to announce you that my last personal project for the ZX Spectrum, "KING OF PONG" is available to download here at WOS si…

    ... (that is, mainly when the ULA is retracing the overscan border ... your case for "perfect 50Hz timing" because guess what, every speccy ...
    TrueVideo TrueVideo June 2010 Development
  • Hypothetically....If you were putting together a "Spectrum +4" what presently available hardware would you include. My criteria would be total comparability (or as ne…

    ... something after making fortune with ULA book :smile::smile:

    timing it would be perfect clone ...
    kpuchatek kpuchatek June 2010 Hardware
  • LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…

    ... not actually contended until the ULA starts rendering the screen details ... HALT you can reduce the contention.
    BloodBaz BloodBaz June 2010 Development
  • LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…

    ... not actually contended until the ULA starts rendering the screen details ... HALT you can reduce the contention.[/QUOTE]
    Or to save ...
    mcleod_ideafix mcleod_ideafix June 2010 Development
  • LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…

    ... :1, de:1" ie apply contention based on the value of ... , run for 1 tstate, apply contention for the value of DE ... be just one point of contention with (DE), and therefore that ... to waste time until the ULA starts drawing the lower border ...
    ajmoss ajmoss June 2010 Development
  • X128 - moved forward.I don't know if anybody noticed but author of the X128 emulator resumed works on the program: [url]http://www.indigobanquet.adsl24.co.uk/x128wip/x12…

    ... space contention. It's problem on ZX Spectrum models. ZX ULA slow ...
    velesoft velesoft July 2010 Emulators
  • X128 - moved forward.I don't know if anybody noticed but author of the X128 emulator resumed works on the program: [url]http://www.indigobanquet.adsl24.co.uk/x128wip/x12…

    ... space contention. It's problem on ZX Spectrum models. ZX ULA slow ...
    Mister Beep Mister Beep July 2010 Emulators
  • RGB to VGA convertor for ZX128/+2/+2A/+3David Luftner release source code (VHDL) of SCANDOUBLER for ZX128/ZX128+2/+2A/+3: [url]http://velesoft.speccy.cz/other/scandoubler-for-zx128_fixed_by…

    ... had in mind was a ULA+ on a plug in card ... thinking of is a ULA+ implementation, the original ULA will still be ... the CPU clock while in ULA contention. (Actually for a double buffered ...
    Winston Winston July 2010 Hardware
  • Issue 2 issue (...)Just acquired an issue 2 Spectrum 48 K, selled as working board, not working keyboard. Before testing it with a psu I opened the case and discovered …

    ... br />
    "5C102. This ULA has a timing fault which was cured ... miniature board and spider. This ULA
    was fitted to ... />
    5C112. This improved ULA has no spider modification, but ... br />
    6C001 This ULA alters the timing of the colour burst ...
    Cignale Cignale July 2010 Hardware
  • Issue 2 issue (...)Just acquired an issue 2 Spectrum 48 K, selled as working board, not working keyboard. Before testing it with a psu I opened the case and discovered …

    ... br />
    "5C102. This ULA has a timing fault which was cured ... miniature board and spider. This ULA
    was fitted to ... />
    5C112. This improved ULA has no spider modification, but ... br />
    6C001 This ULA alters the timing of the colour burst ...
    Cignale Cignale July 2010 Hardware
  • Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…

    ... the screen attributes of the ULA.

    The game maps ... to copy it while the ULA is drawing the lower border ... address 32768, because the RAM contention messes them up.

    ULA scan-line precisely. A program ...
    ajmoss ajmoss August 2010 New game ideas
  • Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…

    ... the screen attributes of the ULA.

    The game maps ... to copy it while the ULA is drawing the lower border ... address 32768, because the RAM contention messes them up.

    ULA scan-line precisely. A program ...
    ewgf ewgf August 2010 New game ideas
  • More colours II (Was: Most popular new features?)The suggested 4xCLUT multi-colour solution never took off.

    ... a huge and prohibitively expensive ULA (or two cheaper ULAs) and ... require some mental signal timing and extra ULA pins....)

    So ...
    csmith csmith September 2010 Emulators
<1…15161718192021…34>

Latest Posts

  • Happy 40th Birthday to the Amstrad CPC464!
    dmsmith on 6:19PM
  • Another Birthday! The Game Boy Is 35!
    dm_boozefreek on 6:17PM
  • I bought an accoustic guitar. How do you play it?
    Maroc's Other Projection on 6:04PM
  • I am currently watching.....
    Antiriad2097 on 5:05PM
  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21

HitBox

Word Docs Hits
contention 1.4K 2.4K
ula 7.3K 13K
timing 3.3K 4.1K

Related Threads

  • ULA......Woooooo and ULA 160??'ello all from down under !<br /> <br /> they don't know the speccy well this way it seems, <br /> <br /> anyways, picked up my brand new astra yeste…
  • Contention and floating bus timingHello,<br /> <br /> I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit.…
  • Serching for ZX printer ULA and ZX interface I ULAIs there anyone having any spares. In both cases, I swapped ULA's from working equipment which fixed things, so I'm 100% sure it's the ULA that is ca…
  • Where: ZX Printer ULA's and ZX interface I ULA'sIs there any source left for these ULA's? Alot of tings can be replaced, like the ZTX transistors and occasionally you can come accross a normal ZX S…
  • New test for finding missing +2A/+3 ULA timing detailsHello,<br /> <br /> having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention patt…
  • 5C Horizontal timing vs 6C horizontal timing.Hi all,<br /> <br /> Just considering the timing difference in the video signal between the 5C and the 6C where the 6C ULA seems to have 50% longer…
  • WANTED: 128k+ or 128k +2(early grey mod.) ULA chipHello,<br /> Attempting to repair my 128k+ speccy.<br /> Needs a ULA(IC1)chip from either a 128k+ or an early +2 will work also.<br /> If anyone has …
  • TimingHey All,<br /> <br /> Is their away of obtaining timing information on ZX128k other than addresses 23672-&gt;23674. Basically I would like to identi…
  • ULA schematicsHi everyone.<br /> <br /> Some while ago I remember getting hold of some circuit schematics of the innards of the Speccy 48K ULA. Sadly I've since lo…
  • ULA?Just curious, what does ULA stand for - I'm guessing Ultra Large (Gate) Array?

Related Searches

  • 2a timing
  • 3b ula
  • issue 3b ula
  • harlequin modified ula
  • ula model 2
  • ula
  • zx 2 ula
  • zx 2 ula interchange
  • zx 2 ula swap
  • grey 2 ula swap
  • ula 128
  • ula replacement
  • 2b dead ula
  • black 2 dead ula
  • slam ula
  • contention timing
  • contetion timing ula
  • contention ula
  • 128 ula timing test
  • contention and floating bus timing

Copyright © 2024 World of Spectrum