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GZX emulator source code publishedHi, GZX is the name of my own personal ZX Spectrum emulator that I wrote and have been using for my needs. I just wanted to let you know that I publ…
... /> - Experimental support or Spec256, double-vertical-res
- Emulate built-in ... -
ZX Spectrum Issue 2 - 12V badHey there, I'm currently attempting to fix a ZX Spectrum issue 2 that I recieved. Overall the machine was generally working when I recieved it, bu…
... ), just slightly intensity of the vertical lines. Turned out the 12V ... -
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…
... Issue 2 board which shows vertical character wobble. This
... screen.
The vertical wobble doesn't correlate with ... discernible
effect on the vertical wobble. VR1 & 2 ... />
Apart from the vertical wobble the board now works ... -
Broken Issue 2 - likely culpritsI've just got hold of an issue 2 spectrum with an interesting layout (heatsink is vertical and goes down to the speaker, some variable resistors and …
... an interesting layout (heatsink is vertical and goes down to the ... -
1st steps in animation Having finally resurrected my familiar old graphics programs, chief amongst which is DPaint Animation, I was a little taken aback to reali…
... decided to try a sinuous vertical snake like motion. Starting with ... -
Time travelling, inter-galactic communication with a BBC MicroJust listened to this podcast of the best story ever, to do with time travel and inter galactic communication. It happened around 1984, to a couple …
... from a book entitled ,"The Vertical Plane". I recently discovered Mysterious ... -
Better graphic in new ZX gamesLCD TV (ideally full hd) used with ZX Spectrum enable using new graphic modes with 2x higher vertical resolution, more colors and without attribute c…
... graphic modes with 2x higher vertical resolution, more colors and without ... -
ZX graphic editor for HI-RES mode / gigascreen / LCD TVI have idea for new ZX graphic editor. For example MULTIARTIST support gigascreen mode (interlace), but show stable mixed colors. Reality is differen…
... in interlaces mode 2x increase vertical resolution of ZX graphic and ... -
Harlequin G Video problem.Hi everyone! Last week I finished putting my Harlequin version G kit together. Nervously I tested it but it was only a partial succes. The keyboard…
... but half the picture in vertical stripes is garbled. I tried ... -
For the Love of ElectronicsBesides the ZX Spectrum, what other pieces of electronic tech, new or old, do you have that has garnered similar levels of affection? For me it wo…
... its switchable head-shells ,adjustable vertical tracking angle (VTA), and that ... -
Spectrum 48K / composite mod / LCD TV: voltages out of the ULAHello Spectrum World I have juste bought again my first computer on ebay... a Speccy 48k issue 2 with a 5C112E-2 ULA. Just had to replace TR4 and …
... output because:
a) the vertical sync is much shorter than ... generate color bursts even during vertical sync (the 250us long sync ... -
ZEsarUX Beta 7.2-RCHi I have uploaded a new ZEsarUX Beta version: 7.2 Release Candidate! Next version will be final stable :) You can download it from: https://g…
... error managing TBBlue Layer 2 vertical scroll
Fixed triggering "opcode ... -
Drawing LinesHas anyone got any experience of coding a Bresenham line drawing algorithm on the Speccy? I've had a go and I find the algorithm has quite a few s…
... , and optimal purely horizontal and vertical lines, but I'd like ... -
ZEsarUX stable 7.2Hi! I have uploaded a new stable ZEsarUX version 7.2! You must go to the Releases section on the GitHub project to download It, as usual: htt…
... /> -Fixed error managing Layer 2 vertical scroll
-Fixed audio bug ... -
Grey +2 with lines on some games on RGB connectionHi Everyone, Is it OK if I ask a question? I dug my +2 out of the loft after far too many years about a month ago, and I have finally got it ba…
... some of my games show vertical lines down the screen, really ... -
ZEsarUX 8.0 stableHi! I've uploaded a new FINAL stable ZEsarUX version, 8.0 :) You can download it, as always, from the url: https://github.com/chernandezba/z…
...
Fixed bug on CPC vertical scrolling
Fixed segmentation fault ... -
CRT VGA monitor: 640x480@50Hz is possible?Anyone knows or has any information regarding a particular brand/model of VGA monitor capable of attaining such screen resolution at 50 Hz vertical r…
Anyone knows or has any information regarding a particular brand/model of VGA monitor capable of attaining such screen resolution at 50 Hz vertical refresh rate? :-? -
The Diagnostic PCBIt arrived in the post today so this is my first go with the Diagnostic PCB. (bought on Ebay) This item , I think , does the same job as Retroleu…
... but got black and white vertical lines on screen .So I ... got the Black and White vertical lines on screen . So I ... -
why am i getting b integer out of range in this code?ive tried running this in spin but thats what i get [code]main org 40000; ; We want a black screen. ld a,71 ; white ink (7) on black paper (0…
... /> and 15 ; want vertical in range 0 to 15 ... 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.
... -
this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …
... ,plx ; remember, x is the vertical coord!
ld a,(hl ... ,plx ; remember, x is the vertical coord!
ld a,(hl ...
ld a,(plx) ; player vertical coord.
rst 16 ; set ... vertical position of player.
ld ... -
12V missing on an issue 3I’ve been working on an issue 3 Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and -5V are all right but the 12V line measures ro…
... Spectrum +. It shows thin distorted vertical stripes on bootup. +5 and ... -
Xcel - how to win this gameHi. I have been exploiting lockdown to do ridiculous numbers of RZX longplays (mostly boring text adventures that you hate, because everyone did the …
... game "Xcel": this is a vertical scrolling shooter, you know, a ... like a lot of these vertical scroller shooters, dodging the walls ... -
Arkanoid / Batty clones ?Although there is an old 2008 topic [url="https://worldofspectrum.org/forums/discussion/16532/best-worst-arkanoid-clones/"]here[/url] , I felt a new …
... I'm looking for is vertical rather than horizontal bat/ball ... -
How to Find a Game You Are Looking for - in a TZX (Emulator) Context I was looking for information about something else but I found a totally different concern instead . Whilst looking I found out that have been lo…
... asked about such things a "Vertical Bat Games" . It got me ... -
Key Materials ,Concepts , and Ideas for DIY Cases For ZX Spectrum Interfaces.In the 1980's ZX Spectrum Interfaces were largely supplied "cased up" or encased . Nowadays often they are not as they are usually sold as bare PCBs.…
... thin material ( eg on a vertical interface , a thin material may ... -
Building a ZX Spectrum 3B, Looking for PartsAs the title says, I'm attempting to build a new ZX Spectrum, but I'm having some trouble locating all of the parts. Thus far, I've got all of t…
... with thick black and white vertical bars). I've practically replaced ... -
What is VSYNC-based sound on ZX80/81?An Z81 emulator demo with quite impressive sound has this explanation -- "manipulating the vertical sync to create sound with the TV buzz". This is …
An Z81 emulator demo with quite impressive sound has this explanation -- "manipulating the vertical sync to create sound with the TV buzz". This is new to me. What does it mean and can it be done on Spectrum too? -
Hardware Reference Manual for ZX SpectrumHi, I want to write games for ZX Spectrum in assembly language. I have lot of books in PDF format from SpectrumComputing. Still missing a book lik…
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How we define playfield, vertical and horizontal scroll support
