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Help needed with calculating screen addressesCan anyone help me finally crack Jonathan Cauldwell's screen addressing calculator and, more to the point, is the reason I'm struggling because this …
... ld a,(ycoord) ; fetch vertical coordinate.
ld e,a ... a,e ; restore the vertical.
and 192 ; ... /> ld e,a ; vertical coordinate calculation done.
... -
Might need a new ROM for an MF128Had some trouble recently that has apparently killed my MF128, basically on pressing the NMI I get black paper and multicoloured vertical lines, and …
... get black paper and multicoloured vertical lines, and just for curiosity ... -
ScrollsHello. Ive been working in scroll routines and I want to show you them. First, one vertical 2 pixels scroll routine with 13 sprites [youtube]D-T3…
... them.
First, one vertical 2 pixels scroll routine with ... -
Something I made in Minecraft...So, this is what I do in my spare time these days (when I'm sure a lot of you will be screaming for me to come back to Speccy-land; I assure you I wi…
... straight side, but making it vertical is the closest approximation. Where ... -
New version emulator ZEsarUX-1.1Hi I have uploaded a new version of my ZX80/81/Spectrum emulator on [url]http://sourceforge.net/projects/zesarux/[/url] Changes are: Added suppo…
... aofile WAV format
Improved vertical display synchronization on ZX80/81 ... -
Next step for fixing my speccy?Hi guys, I've picked up my faulty Spectrum aiming to fix it. So I followed the excellent JouledperCoulomb videos on Youtube for the basics and I am …
... black screen with slim white vertical stripes. And that's where ... -
Issue 4s - Not 'Jailbars' but lines alloverIt's not another 'Jailbars' question!, but I've got this Issue 4S that aside from the 'Jailbars' on the Paper area of the screen which I can live wit…
... displaying alternating light and dark vertical lines all across the screen ... with BC547's, yet the vertical lines in the border are ... -
ADG questionCan some one help me please. Using AGD 4.3, if I want to do a game with say 20 levels all vertical how to I make it so that when my man falls from t…
... with say 20 levels all vertical how to I make it ... -
Issue 2 Spectrum - Black screenHi I have an issue 2 spectrum which I'm having some issues with. I bought it on ebay so have no idea of the history or how it came to be broken. Whe…
Need help with +2a graphics glitchFirst of all It's my first time on here so, Hi! Recently got back into the spectrum scene by buying a +2a and a DivMMC (a lovely piece of kit btw), …
... some small flickering short dark vertical lines that only seem to ...Uridium possible with more colour??Having seen the MSX version of Uridium mentioned in another thread I wondered if the Spectrum could produce anything similiar, and had a go at a mock…
... stayed locked horizontally, with only vertical movement by character square there ...Best Worst Gadgets of the 80sWhilst working today my mind began to wander as it does regularly to the 1980s. I began to think of all the fads and gadgets that came and went, some…
... [/img]
Remember those vertical record players. I always considered ...Spectrum +2 (grey) RAM issueHi, I?ve got a ZX Spectrum +2 (grey) with what I think is a RAM issue. I used to be able to load games very reliably by playing converted TAPs and …
... it gets to cyan, coloured vertical stripes appear, which according to ...Bought a car? You might soon not actually own it.<div style="font-family: Arial, Verdana; font-size: 10pt; font-style: normal; font-variant: normal; line-height: normal;">Quote "<span style="font-fa…
Quote "It's official: John Deer and General Motors want to eviscerate the notion of ownership. Sure, we pay for their vehicles. But we don’t own them. Not according to their corporate lawyers, anyway.
In a particularly spectacular display of ...New game released: EXPLORER<div><span style="font-size: 13.3333330154419px; line-height: normal; font-family: 'Courier New';">- EXPLORER -</span></div><div><span style="font-si…
... I've seen an alternate vertical-scrolling version in a TV ... weak attempt to play a vertical clone of my favourite arcade ...[NEW] Retro Virtual Machine v1.0.0 for OSX released!!!!Here it is! Retro Virtual Machine v1.0.0 RELEASED!!!! Many thanks first to Patrik Rak for the PZX format and for their Z80 tests without which RVM…
... using OpenGL and GLSL.
Vertical sync using a triple buffer ...Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…
... />
I'm trying to vertical scroll my back buffer, but ... . The area I need to vertical scroll is therefore 18 chars ...z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... coords.
ld hl,xcoord ; vertical position.
dec (hl) ; move ... it.
ld a,(xcoord) ; vertical position.
rst 16 ; print ...48k not startingHi team, I have 2 48k's, one works (Issue 4s), one doesn't (Issue 4a). The non-working one appears to start, but not finish the RAM test. The pape…
... , which join some of the vertical red lines.
The ...ZX Spectrum Sprite chipHi everyone. As I said some time ago, I wanted to make a 'virtual' Sprite chip for the ZX spectrum, on my ZEsarUX emulator. The idea is to make so…
... can be mirrored horizontal or vertical
Every Sprite is ...NTSC Compatibility?Correct me if I'm wrong, but wasn't the Timex 2068 the only NTSC clone built of the ZX Spectrum? And I use clone lightly... From what I underst…
Spectrum Screen RAM layoutHi there The spectrum screen layout is rather odd. It seems to be arranged into 3 256 byte groups. If I have an x (horizontal) coordinate (from…
... to 31) and a y (vertical) coordinate (0 to 191), what ...New K-MOUSE 2016-LPI plan make new PCB version of K-MOUSE 2016. This version will oneboard, horisontal, without cinch connector. "LP" at end sign LOW PRICE. Price of ho…
... two additional ZX bus(throught) vertical connectors (+ 5 or 10 USD ...Spud81New version of Spud81 out, not done much really except add vertical and horizontal hold settings and tweaked under the bonnet a bit. Anyway, enjoy…
New version of Spud81 out, not done much really except add vertical and horizontal hold settings and tweaked under the bonnet a bit.
Anyway, enjoy!!
http://bit.ly/MYuLBXZ88DK NOOB cplot INK colorHi I am a complete NOOB with Z88DK, I am trying to draw colored circles. How does ink, paper and border work with Z88DK. I started trying to wo…
help with broken +2 greyHello, the other day I was trying to record sounds from my grey +2 "sound" socket to an old cassette recorder. Suddenly the screen went to a solid…
... a solid black border with vertical bars and has been that ...Basic Screen Shadow QuestionHello, I've been porting a game to the Spectrum from another platform. So far so good and I have per pixel screen scrolling working really nicely …
... correctly fills the screen with vertical lines. This works correctly
Rolling display from RGB port on a +2Hi gang, after many years I finally decided today to attempt connecting my +2 to my Japanese RGB monitor. Using just the composite video pin only …
... , ground and composite sync. Connecting vertical sync makes it go worse ... rather than better. Just with vertical sync I get no picture ... inputs and separate horizontal and vertical input. Now, when I connect ...Shimmering displayHi all, I've got a 48K issue 4S and it appears to be working apart from it's displaying weird vertical shimmering patterns. It passes a RAM test t…
... from it's displaying weird vertical shimmering patterns. It passes a ...Strange things about my +2AHello everybody I´m from Spain and first of all I want to thank you the oppotunity of join to this forum. And second, my problem. I have and old…
... map of the empire, violet vertical bars and bye bye, just ...
