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ZX81 back porch fix using LM1881Hello! Has anyone here did the back porch fix for ZX81 using LM1881? I did it this weekend and instead of clear black on white i got black on dark g…
... picture has a lot vertical aftifacts (darker/ligher vertical lines). Probably from ... -
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. …
... /> int lin[NUM_TILES]; // hi-res vertical tile position
int col ... /> int dlin[NUM_TILES]; // hi-res vertical tile movement
int dcol ... -
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…
... /> int lin[NUM_TILES]; // hi-res vertical tile position
int col ...
int dlin; // hi-res vertical tile movement
int px ... -
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…
... /> int linEnemy, linPlayer; // hi-res vertical tile position
int colEnemy ... /> int dlinEnemy, dlinPlayer; // hi-res vertical sprite movement
int dcolEnemy ... -
Work out attribute location in MCHow do I go about writing a MC routine which calculates the attribute address from a set of PRINT co-ordinates. I know you in basic you multiply the…
... in basic you multiply the vertical co-ord by 32 add ... -
Interview with Steve Wetherill (Odin)Hi you all!!! Here is the interview done to STEVE WETHERILL (Nodes of Yesod, Robin of The Wood, Arc of Yesod, Heartland... ?Odin!) and published at […
... have had time to add vertical jumping and platforms to Heartland ... -
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…
... /> int lin[NUM_TILES]; // hi-res vertical tile position
int hrc ... /> int dlin[NUM_TILES]; // hi-res vertical tile movement
int dhrc ... -
TESTROM3 - utility/rom for test your ZXHere is TESTROM3 utility as 16kB ROM file + flasher for install this rom to divide eeprom (or mapram mode). Work also on ZX Spectrum without ROM and …
... can see in first videoram vertical lines with roll effect.
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…
... /> int linPlayer; // hi-res vertical tile position
int hrcPlayer ... int dirPlayer; // hi-res vertical sprite movement
int ... />
// update player vertical position (up/down stairs)
Just bought a Spectrum+. Doesn't work. Red bars on screen.Hi all, Something of a noob here. Having recently been on holiday, I came across a Spectrum+ in a box, with a collection of games in a shop, and, af…
... get an alternating pattern of vertical red bars - it switches between ...Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …
... replaced by black and white vertical stripes, one character wide.
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…
... int linPlayer; // hi-res vertical tile position
int hrcPlayer ... int dirPlayer; // hi-res vertical sprite movement
int ... [NUM_ENEMIES]; // hi-res vertical tile position
int ..."Knightmare", new game by ClimacusYes! The day has come. Climacus has already published via Bytemaniacos web site his new game. After successing with Speccy Bros and RetroInvaders, re…
... conversion from a MSX classic vertical shooter called "Knightmare", released in ...The great 128k ConversionWell, I am not sure if it is going to be great. Hopefully it will! This evening, I set about getting my Issue 6A Spectrum Plus working. I suspecte…
... about the electrolytics. There were vertical bars moving horizontally across the ...Is the 128K heatsink's TV out modulator kit repairable?I have a 128K+ Spectrum that is working absolutely fine and is giving out the perfect picture from its RGB out socket (with the right cable ofcourse)…
... satisfactory.... it has two distorted vertical bands and there are clicks ...My 48K Speccy has died.Hi fellow WoSer's! Wondering if you could help me with my rubber key 48k Spectrum, which died on me this afternoon. It is one I prevoiusly fixed up j…
... black paper area with red vertical lines which have dashes in ... border, black paper with the vertical lines. Tried several times reseting ...DivIDE on +3Hi guys! I need some help with my DivIDE interface. It?s a standard DivIDE from Ebay, no Plus. It works quite well, but actually I have three proble…
... not recognized. I use a vertical 2 x CF card adapter ...QL composite question...Hello guys, I have two QLs, both in excellent condition with new membranes, capacitors, all plastic caps for the slots etc... Although I've made th…
Correction of +2 hardware errorsThis is a collection of various pieces of information picked up from various places, including a lot from this forum. I have edited it and reworded i…
... TEA2000).
TR5 provides the vertical Sync. (V.Sync.) output on ...Spectrum 128K +2 (grey) faulty screenHi. Just got untested +2. Now I only get picture like this (Black screen, with two vertical very thin white lines): [url]http://aijaa.com/Nk93Ub[…
"Attribute embosing" on Pentagon 128I'm still in the progress of build my 2 Pentagon 128 machines and everything seems to be sorted out by now :) Except for 1 more or less minor issue. …
... edges (like the very first vertical line being darker) ... this seems ...SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…
... variety of increased horizontal and vertical resolutions. In fact, a total ...Yet another glitchy graphics 48kHeyo, I'm new both to the forums (sorry if this is the wrong forum) and to Spectra I'm afraid, picked up a 48k from a steam fair sale thingy (not th…
... a flashing "K" to drawing vertical red lines on an otherwise ...Spectrum +2A problemWorking my way through a new influx of greys and blacks i came across one thats got me a little stumped, on boot it goes straight to vertical black a…
... boot it goes straight to vertical black and white lines, nothing ...Poorly Issue One 16k spectrum diagnosis?Hello, everyone. :smile: I was lucky enough to buy an Issue One 16k rubber key the other week; I didn't know it was an Issue One till I opened it up…
... white, sometimes black border and vertical black and white stripes as ... border
3. The symmetric vertical pattern and buzzing sound indicates ...Issue 4A issuesHi all, I've been trying to get the Issue 4A board that came DOA with the case I purchased for my Frankenspectrum to work. I've recapped and socket…
... bone pattern without the periodic vertical stripes, and removing the Z80 ...Struggling with this routine... Any ideas?I'm trying to write a routine that plots 3 pixels to decrease the energy bar in the top right corner by 5 units, but it just wont have it! There mus…
... 18
ld b,171 ;vertical co-ordinate to be plotted ...quick RAM copy using LET in BASICI'm in the process of reviewing, revising and refining all the programming tips & utility routines which I've posted on this forum over the last eigh…
... : STOP
[/code]
The vertical bars are due to S ...Video capture from spectrumI got this usb video capture device from maplin to try and record some clips of programs running on my 48k spectrum. [url]http://www.maplin.co.uk/us…
... up the screen like the vertical sync is off.
vertical sync signal.
Anyone ...
