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If a C64 can do it...Forgive me if this isn't the right section. We've seen coders surprising us over and over again with excellent demos and things that a few years ago…
... black can do to eliminate color clash / blockyness.
< ... points and just draw lines or they have some ... Wolfenstein 3D but without color addressable at the pixel ... a combo of 3D lines and some fixed sprites. ... btw. There was some color clash but the animation ... -
problem on the video output (spectrum 2+)Hello, I'am french. (Sorry my english is very bad). I have a problem on my spectrum 2 +. At the beginner the picture (on my tv) have 2 area where 2 t…
... spectre est-vous à angle droit colorés aléatoires et des ... showing random coloured squares and lines?
If there is ... -
Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…
... quite a few I/O lines left over (certainly enough to ... low order bit of the lower half of the address bus ... -
Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…
... use the function that includes lines too. For now this is ... now I'm removing all color from screens on start-up ... -
TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…
... makes the decision between the lower 32K and upper 32K based ... because you can tell which lines are wiggling as they should ... -
TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…
... as if there is bad lower RAM or TR3, ZTX313 is ... for a 48K machine, red lines up and down the screen ... Sinclair Research Ltd, but only lower 16K only working. Ramtop gets ... , which is what the red lines up and down the screen ... -
TV Modulator. Can it be repaired?Is it possible, to repair tha TV modulator (after removing it) if it gives wavy picture? I replaced both transistors (tr1/2) and both electrolytic ca…
... a 48K machine, red lines up and down the screen ... Sinclair Research Ltd, but only lower 16K only working. Ramtop ... which is what the red lines up and down the screen ... , slower access to the lower 16K, so it all ... for ripple in the power lines. That's a big ... -
On a 48K issue 6A......how can i isolate the 32K block? I want to test if there is any fault on the 4116's , leaving the 4532's out of the equation. Will removing the …
... case something was interfering with lower ram but still... nothing. No ... , black paper, thin red vertical lines but then it froze. some ... -
AlchNews 21Just a quick one -- [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0013968]AlchNews 21[/url] appears to be corrupt (RealSpectrum refuses to lo…
"According to official sources" :D Bounder, Deflektor, Dizzy 8, Hexxagon, Color Lines, Orion, Ammytris, FPD News and Popkey should be on the AN 21 +D floppy. Wotalot! :o -
RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
... based, with adjusters for each color:
[url]http://www.ppest ... input. And if solder input lines directly to ULA will get ... -
RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
... based, with adjusters for each color:
[URL]http://www.ppest ... input. And if solder input lines directly to ULA will get ... -
RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
... yourself it to Speccy (YUV lines and 5V, GND)?
lines - not for everyone.
lower noise on UVY lines when edge connector ... -
RGB OutputWas there ever a device available for the 48 that had a RGB output ? As an alternative , what about using a pc monitor (iirc these have seperate syn…
... yourself it to Speccy (YUV lines and 5V, GND)?
lines - not for everyone.
lower noise on UVY lines when edge connector ... -
Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…
... it's 64K of RAM, lower 16K are not used and ... (graphics, every pixel in own color, EGA-compatible) and 640x200x16 (graphics ... -
Unconventional way of diagnosing a faultHi everyone Some time ago I got a 48k Spectrum (issue 3B board) in a pretty bad condition. I believe the power supply transistor TR4 failed, causing…
If the only fault is lower RAM, it's unlikely you' ... I can think of where lower RAM has failed in such ... ' the bus - check for bus lines that are stuck at 1 ... 't be fully functional and lower RAM can be completely goosed ... -
Unconventional way of diagnosing a faultHi everyone Some time ago I got a 48k Spectrum (issue 3B board) in a pretty bad condition. I believe the power supply transistor TR4 failed, causing…
... I can think of where lower RAM has failed in such ... ' the bus - check for bus lines that are stuck at 1 ... see all data and address lines go from 0 to 5V ... 't be fully functional and lower RAM can be completely goosed ... -
Name the game, vol. 34829048390Alright, it was a game where you dig through the ground and have to collect some items while watching out for falling rocks (even though I'm pretty …
... I end up writing [color=red]twenty[/color] lines of description (there is ... already [color=red]tons[/color] of text ... -
How can I tell what issue a speccy is from the serial number?Is it possible to know the issue of a speccy just by looking its serial number? What issue a 001-107603 could be? Is it issue 1 (i know its a 16K ma…
... lines for the DRAMs. It uses the ULA timning for the lower ... -
UlaI remplaced an ULA 6c001-6 by an ULA 6c001-7 chip on issue 3B board. It is "crucial" to remove R32 and adding the 2x NAND gates ??? or not ? Thanks.
... well, in my Speccy, the lower bank is also serviced by ... zeroes being read from the lower bank by the ULA.
lines you could use a 4464 ... -
Disable onboard memoryWould this work...? Access to onboard I/O can be disabled by holding IORQGE high. Would it be possible to create a MEMRQGE in a similar way to disa…
... the interaction between ULA and lower bank is for memory access ... on the RAS and CAS lines coming from the ULA, which ... keep in mind that the lower bank is refreshed implicitly by ... -
8-bit or 16-bit registers?I'm playing around with writing a Speccy emulator for mobile Java at the moment. I did a quick and dirty port of Qaop, which does run but at less tha…
... if it just "putfield" the lower 16 bits we are not ... was thinking more along the lines of simulating the C-like ... -
ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... stack has to be moved lower than what is shown in ... masked sprites move in straight lines
// at various speeds, bouncing ... -
ZX Spectrum 128+ problemsHello!I recently purchased and got myself a spectrum 128+ from ebay.The item did not have an original power supply so i got a power supply of 9volts …
... /> [/code]
R, G, B lines contain resistors, S (sync) line ... ZX. It will be in color and will have rather good ... -
Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…
... />
ld b,8 ;8 lines of char need to be ...
ld a,h ;Mask lower 3 bits of h to ... -
Poorly Spectrum + Fault diagnosis help needed!Hi, I've got a Spectrum+. Sometime in the past I broke it and sent it off to be fixed. It came back working good as new, but with an issue 2 board i…
... black paper with vertical red lines (i.e. writing 0x02 to ... for a while, then vertical lines start appearing on the screen ... shots, it's been bad lower RAM. (That's not to ... -
Poorly Spectrum + Fault diagnosis help needed!Hi, I've got a Spectrum+. Sometime in the past I broke it and sent it off to be fixed. It came back working good as new, but with an issue 2 board i…
... black paper with vertical red lines (i.e. writing 0x02 to ... for a while, then vertical lines start appearing on the screen ... shots, it's been bad lower RAM. (That's not to ... -
Spectrum Diagnosis: Purple is not my colour!Hi, I thought the self-fault-finding amongst you might appreciate my learning experience this afternoon in fixing my home-made speccy 48K. Yesterda…
... to try to boot (vertical lines instantly) but it stayed in ... changed all 8 of the lower ram chips with another kind ... just black).
The two lower pins of each chip (right ... -
Z80 Developer ConsoleHi, This is a project I have meaning to do for ages, recently had a kid, had some time off work (as a software developer) and surprisingly had a bit…
... was thinking exactly along those lines when using the Spin assembler ... my mnemonics to be in lower case - I find them easier ... -
Z80 Developer ConsoleHi, This is a project I have meaning to do for ages, recently had a kid, had some time off work (as a software developer) and surprisingly had a bit…
... the size of the output lines too (to make it easier ... /> Arjun, good idea with the lower case, I will make it ... -
Using a multiface to exit to BasicBack in the days I was always fascinated with the idea of getting access to BASIC listings inside a program or game. I was able to work a way around …
... and errors such 'K Invalid color', but I'm not sure ... to renumber all the 0 lines. But for now all I ...
