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Tutorial: ZX-Paintbrush and BIFROST*The latest version of [URL="http://www.zxmodules.de/"]ZX-Paintbrush[/URL] now supports editing multicolor tiles as used in [URL="http://www.worldofsp…
... 't look like the other. No white teeth, and red in ... .zip" into ZX-Spin in Spectrum 48K mode, then loaded your file ... -
ZX Spectrum clock signals comparedI haven't searched for this on WoS; it might have been posted before. But I think it's important info, and can't do any harm to repeat or show from a…
... some problems with the ZX Spectrum clock signal.[/QUOTE]
The ... ... why do you need the Spectrum clock signal? Wouldn't be ... Spectrum 48K/128K clock is not periodic: it has blackouts when the ULA ... -
ZX Spectrum clock signals comparedI haven't searched for this on WoS; it might have been posted before. But I think it's important info, and can't do any harm to repeat or show from a…
... ... why do you need the Spectrum clock signal? Wouldn't be ... Spectrum 48K/128K clock is not periodic: it has blackouts when the ULA ... -
Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …
In order to give satisfaction to all self-appointed guardians of legality, from this moment on, [B]the 'Interface 1bis' is officially sold WITHOUT a copy of the Sinclair ZX Spectrum 48k ROM[/B].
The user will however notice no difference. -
Interface 1bisHas anyone on here got a "Interface 1bis": [URL="https://sites.google.com/site/interface1bis/"]https://sites.google.com/site/interface1bis/[/URL] I …
... ZX Spectrum 48k ROM[/B].
The user will however notice no difference ... on-board SRAM NO copy of the Sinclair ZX Spectrum ROM, but ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... get a fully compatible ZX Spectrum 48k in the original dimensions to ... of a rubber Spectrum or that of the 48k+. Secondly it was ... . All the functionality of the ULA is realized in discrete TTL ... further modern clones of ZX Spectrum including VGA output as I ... -
IF1bis StabilityI just thought I would start a different thread relating to the IF1bis, and leave the copyrighters to it elsewhere...:-P I've had mine for a few mon…
... before shipping, on a ZX Spectrum 48k, fitted with fresh capacitors and ... [/B].
There is no need to load the operating ... -
Video problem on grey +2I have a bad video problem on grey +2. The computer is in a poor shape, but the major problem is with the video. With a (known good) SCART cable I ca…
... ... let's see...
The ULA is creating CSync, which feeds ... , then it's probably the ULA.
All that, assuming ... and the CSync from the Spectrum on pin 16 (blanking), then ... even be possible that the Spectrum has no problem, it just outputs ... -
Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... /> This is only true for Spectrum +2A/+3 models. However, if ... are developing code specific for Spectrum +2A/+3 models, you ... />
[QUOTE=Metalbrain;730377]In 48k models it will be a ... line.[/QUOTE]
No. In Spectrum 48K and 128K/+2 models, the ... -
Copy 4Kb in Assembly?Here's an interesting problem: what's the best way to copy a block of 4Kb in assembly? The most obvious solution is to use [B]LDIR[/B]: [CODE] l…
... uncontended RAM? :)[/QUOTE]
No, you have missed the point ... uncontended RAM, but there's no way to avoid the screen ... /> It's not just the Spectrum 128. You shouldn't put ... in contended memory of the Spectrum 48K either!
[QUOTE=aowen ... -
Double Dragon Remake: The Development ThreadOk guy's, so this is the new thread that will be focusing on Jim Bagley's development of the Double Dragon remake that was first proposed by myself a…
... thought the Amstrad CPC and Spectrum 48k version were looking quite bad ... in whole character squares, with no background masking or transparency whatsoever ... exactly the same as the spectrum one, but slower (probably ... -
NEW GAME: Elixir VitaeOnly 2 weeks after Janosik I have a pleasure to announce my next creation - a logical minigame called [B]Elixir Vitae[/B]. Just like another Polish …
... multicolour again, so it has no visible effect.[/QUOTE]
... Each repetition takes 224T in Spectrum 48K (starting 15891T after interrupt), ... 228T in Spectrum 128K/+2 (starting 15941T ... interrupt) and 228T in Spectrum +2A/+3 (starting 15944T ... -
eBay 128K Spectrum RGB cables overheat the Spectrum!?Hi everybody, For a long time I've wondered why Spectrum 128K Toastracks were overheating when using my Retro Computer Shack RGB SCART cable. Today …
... I've wondered why Spectrum 128K Toastracks were overheating ... sold and so have no knowledge on how they ... the cost is my Spectrum 128K's ULA, and that's ... which of course is a no-no.[/QUOTE]
... the monitor socket, although no where as severely as using ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... release it because I had no time to test anything.
Spectrum models, such as Timex or ... label "sync_raster" is 29T for Spectrum 48K and 36T for other models ... -
128k gamesHi. I've come to World of Spectrum for advice. I'm a Commodore guy OK, please be nice to me, as I seek your wisdom! I love the Commodore 128, and I'…
The Spectrum 48K and 128K are structurally similar. The 48K has no paging at all ... pretty easy to have a 48K game be enhanced to use ... -
Bomb Munchies - preview releaseBomb Munchies Preview release Version 12th Jan 2014 [URL=http://s979.photobucket.com/user/MatGubbins/media/bmsix_zpsc33279a2.gif.html][IMG]http://i…
... /> -File --> Model --> Spectrum 48k (unpause)
-File --> ... on Numeric
'no dot' both joysticks have ... br /> If there is no ticks, dots, threshold numbers ... are getting somewhere...
No?.. oh well, goto 5) ... -
48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... four distinct versions of the Spectrum 48K ULA:
[LIST]
[*] ... CPU in machines containing this ULA (Issue 2 boards).
... all 48K PCB issues
[*]5C102E/5C112E/6C001E-6 ULA's ... 's excellent book, "The ZX Spectrum ULA".
... -
@zxuno, the TwitterHi! Now we have a Twitter account about ZX-Uno FPGA Spectrum board project. Follow at: [url]https://twitter.com/zxuno[/url] Main site: [url]http:/…
... -phenomenon'..[/QUOTE]
The ULA+ has been real hardware for ... of the ULA+ that fits inside a 48K Spectrum (in the ULA socket). He ... -
@zxuno, the TwitterHi! Now we have a Twitter account about ZX-Uno FPGA Spectrum board project. Follow at: [url]https://twitter.com/zxuno[/url] Main site: [url]http:/…
[QUOTE=Winston;757158]The ULA+ has been real hardware for ... of the ULA+ that fits inside a 48K Spectrum (in the ULA socket). He ... -
Spectipede (mastertronic)There are 2 different inlays for this in the archive. I have just checked my copies and noticed there is a difference between the 2 versions. [URL=…
... .. some have "spectrum 48k" in the corner and others have "spectrum 48k/+2" etc ... be different in some way. No idea what the difference is ... -
New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …
... />
[B][U]Toastrack 128 (ULA: 7K010E-5 8612, CPU: Zilog ... T cycle when there is no black bar visible.
14358 ... - no bar visible
- the ... .
[U][B]Spectrum +2 Grey (ULA: Amstrad 40056 8630, CPU ... -
Help with 1-bit sampled soundHi all, I've been sent over this way from the CPC Wiki forums as you guys may be able to help me more specifically with a programming query. Firstly…
... for the 48K Spectrum (there's very little capacitance between the ULA and ... pass filter, for instance the Spectrum +3 on its audio output ... same though. For instance, the Spectrum +3 doesn't have a ... trial and error for the Spectrum 48K's beeper. The low pass ... -
48k+ ULA'sI've got three ULA's here that only work in certain boards. Thought I was going nuts, swapping, changing stuff around. But hey, I've got two working …
... four distinct versions of the Spectrum 48K ULA:
[LIST]
[*]5C102E ... 's excellent book, "The ZX Spectrum ULA".
B[/QUOTE ... designed the complete ZX Spectrum with that complexity (ULA mainly), even when ... -
Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
... a Spectrum 48k, the register for the border colour in the ULA starts ... the ULA is faulty (rare) or another device in the spectrum is ... preventing the CPU, ROM and ULA communicating.
Spectrum up and looked inside? ... -
DivMMC EnJOY! v2014.1Teaser: [url]http://www.youtube.com/watch?v=ea036HH25f8[/url] This is the board version that is designed for the custom case which is worked on at t…
... ,
for the ZX Spectrum bare metal usage I think ... br />
Some unmodified ZX Spectrum 48k connected to DivMMC-Enjoy! and ... /> snapshotting. Remark the small Spectrum wallet, compared to the
weird? No, it's another extension to ... -
+2 Grey Composite question.Hello all, Long time reader first time poster and all that...... Probably a daft question which has been asked hundreds of times, even though I ca…
... at all then I see no reason why it would only ... evidence is worth, both my 48k and +3 work perfectly (composite ... I ever tried on the 48k - I was doing various tests ... sync wheras on the 16/48k the ULA generates analogue YUV to ... -
Harlequin clone...PCB manufactured!Using Chris Smith's detailed schematics and project notes from the Harlequin... a Speccy fan in the United States by the name of Don (Superfo) has de…
... harlequin reset and there is no divide booting screen. i have ... works ok with other zx spectrum 48k so a bug must be ... -
+2 Grey Composite question.Hello all, Long time reader first time poster and all that...... Probably a daft question which has been asked hundreds of times, even though I ca…
... a way to capture the spectrum 48K and 128K +2 to PC ... card....must be.....
No way I am paying out ... for an old tv, no where to put the damned ... -
Spectrum Not Responding to Keyboard InputHello, sorry if this thread is not in the correct place, This is my first post and I'm not sure where to post this type of thread. :lol: Anyway, I r…
... the keyboard while running the Spectrum with 16K of RAM ... any soldering points on the spectrum.)
Could the ... a Spectrum 48k, the register for the border colour in the ULA starts ... , the border of the spectrum sometimes appeared black when powering ...
