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ZX Spectrum 48k issue 3b power problem?Hi :) I was lucky enough to find a couple of ZX Spectrums at a car boot sale yesterday. I spent the evening fiddling about with one (issue 2) and t…
... the middle, filled with thin vertical red lines. This flashes up ... -
"FlikerFixer" for Spectrum? (GigaScreen)Hi. Yeeeeeaaaaaaars ago there was some device for Amiga500, called "flicker fixer" that was liquidate flickering on interlace (gigascreen). I was…
... some device for Amiga500, called "flicker fixer" that was liquidate flickering ... -
Spectrum+ fault - lines on boot screen, freezesThe ZX Spectrum+ I bought in the car boot has a fault. When you boot it, it's displaying the Copyright screen, but each character position has a vert…
... each character position has a vertical line going down it in ... -
Bride of Frankenstein mapAs part of the debugging for Bride of Frankenstein I was intending to compile a screen-shot map, as the painted map in SU has some incorrect connecti…
... 4 connections). In addition, the vertical orientation of rooms 1a/2a ... -
ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
... what happens.
The vertical bands are symmetrical as stated ... -
try to fix issue 4 board problemHi I try to fix speccy 48. All voltages are in place, ula 100% ok, cutted +5v from ic25 so far no luck. What next? ROM or upper memory? wojtek (i…
... /> wojtek
(i got vertical stripes and some flashing garbage ... -
New Game! Horace Goes to the TowerWell, it all started as a joke in this thread: [url]http://www.worldofspectrum.org/forums/showthread.php?t=35612[/url] I got inspired by ewgf's bac…
... . And the feature that a vertical moving platform may not stop ... -
ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…
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IOREQ+READ sets the vertical sync signal as active. IOREQ ... -
Help I killed my +3...I replaced the drive belt on my +3 and gave drive quick service. Upon booting everything was fine and one of the discs I bought went in and I heard…
... get is black and white vertical stripes with a couple of ... -
Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…
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(Thick black and white vertical bars, but almost always with ... -
128k multicolour graphics...ok over the years I've been a fan of multicolour graphics on zx spectrum, an I clearly get that on a 48k the (8x1@2)multicolour limit stands at 18cha…
... the buffered 128k limit without flicker? As it only takes a ... , I don't want any flicker or more colours, I want ... -
Milk, No SugarA few people were asking about this vertical shooter at Replay, and I'm not sure if TMR found time to load up the WIP demo over the course of the wee…
... people were asking about this vertical shooter at Replay, and I ... -
Doom 3 is now open source!I'm no fan of Doom 3, but I think it's great news that id Software has released the game's source code* into the public domain, so that the game can …
... opponents), the ability to jump, vertical aiming, non-standard enviromental architecture ... -
SLIGHT GHOSTING EFFECTI've recently dusted down my old 128K Spectrum (toast rack version) from the attic, purchased and fitted a new keyboard membrane and purchased a scar…
... from a faint ghosting of vertical lines in the "paper" area ... -
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…
... prevented the output of the vertical sync. signal. My monitor claims ... TR5 round means the proper vertical sync. signal is now output ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... I thought I understood screen flicker issues, but I don't ...A Thread with not much Speccyness about it..Sorry this not only non-speccy related but is also somewhat C64 related:o But hey this is the chit forum is it not? Anyway, I already posted this q…
... not have a lot of vertical height. My biggest problem is ...Faulty rubber speccy - advice neededHello all speccy hardware gurus :) Recently I moved to a new flat and after a long time have some space (and time) to dig out my old Speccy hardware…
... fitted - black paper with thin vertical lines.
Since the ...joining lines of BASICDue to overwhelming demand - well, one demand - well, more of a suggestion, really - here's a routine to join together lines of BASIC. The vertical c…
... together lines of BASIC. The vertical cursor motion code is based ...Sevenup - bug or feature ?I have noticed a very peculiar behaviour of this great utility. I have for example a picture of 3 vertical lines which is 19 pixels high and 16 pixe…
... example a picture of 3 vertical lines which is 19 pixels ... 8 horizontal pixels. But in vertical dimension there aren't any ...4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
... the errant pixels would not flicker. I have not yet determined ...editing strings with INPUT LINEHere's the latest in my unpredictable series of utility routines. This one I needed for the SAGE game editor; it emulates INPUT LINE l$ but with the …
... the string).
The vertical cursor enhancement from "joining lines ...SEUD - How to - Part IOK, a few weeks ago, I bought my copy of SEUD to make my first game on the Spectrum after 26 years! :) I'm learning it yet, but I'll show to you my a…
... the direction of the game (vertical or horizontal), you will create ...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…
... /> 4 horizontal sync
5 vertical sync
6 frame ground ... kHz; the frequency of the Vertical Sync Pulses, 72 Hz. The ...Scrimpy screensHere's a question - how small a window can you get away with as a playing area for an arcade/action game before anyone notices? From the very earlie…
... good aspect ratio for a vertical shmup:
[IMG]http://www ...Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …
... black display with thin red vertical lines.
Next, the ... .png[/IMG]
The vertical white markers show the times ...Arcade Game Designer 3The latest version of the arcade game creation tool for the 128K Spectrum. AGD 3 now boasts pop-up menu and inventory facilities for arcade adventur…
... the utility itself, supporting 12 flicker-free sprites at a smooth ...Scart output flickeringHello :-) Got myself a scart lead from eBay for a +3 and a +2A. The picture quality is brilliant but the top third of the screen flickers / pulses …
... see there will still cause flicker. I tried a different tv ... much worse but with no flicker.
Is it just ...What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…
... remember, x is the vertical coord!
ld a ... remember, x is the vertical coord!
ld a ... ld a,(plx) ; player vertical coord.
rst 16 ; ... set vertical position of player.
...
