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+2 grey Contended RAMhi all, i have some quenstions about, contended RAM are banks 1,3,5,7 banks are the pairs of IC's (4164), so 1 pairs = 16k X 4 pairs = 64k this 64…
... "upper" memory with the same logic
now psysical, contended ... -
You know you've been using Spectaculator for too long when......you press Shift and Z and expect to see one of these : On a PC keyboard. Oh dear.
...you press Shift and Z and expect to see one of these
:
On a PC keyboard.
Oh dear. -
LucasArts Shut Down By Disney"[B]After acquiring LucasArts and Lucasfilm last year for a hefty price tag of $4.05 billion, Disney has today announced that LucasArts has seen its …
... market, we've decided to shift LucasArts from an internal development ... -
Spectrum16 keyboard is dead - help?Hi. Spectrum 16K with 32K Rampack, AY, Kempston and divIDE was my main machine for usage. Sadly, suddenly the keyboard of my Spectrum16 stopped t…
... ,X,C............N,M,Symbol Shift.
We tried to ... -
2013 projects: new PlusD, DivIDE and MultifaceI have written about this before, but as I want to let these project be influenced by your opinions, I thought to create a separate topic about it. …
... CPLD.
This CPLD replaces logic chips like GALs and 74xx ... -
Problem with DIY Kempston Joystick InterfaceHello, Decided to try out Yarek's Kempston joystick interface: [img]http://8bit.yarek.pl/hardware/zx.joystick/kjschem.gif[/img] Having a few issues.…
... or Ground going to both logic ICs. That's one thing ... -
plus d machine code loader issueas many of you know i have done / been doing quite a few tr-dos recracks for the plus d but i have come into a bit of a problem the plus d machine co…
... filename then inc (hl) to shift it up to the next ... -
ludomancy.com - Daniel BenmerguiThis is pretty old but has anyone played any of the 'games' at [url]http://www.ludomancy.com/blog/[/url] by Daniel Benmergui? They're generally reall…
... 'games' with a bit of logic puzzling thrown in together with ... -
Beta testing Fuse 1.1.0 beta 2Hello everyone, We are still preparing Fuse for a new release soon and would appreciate help in testing that all the new features and all the old fea…
... /> [*] Fix inverted DISCiPLE printer busy logic
[*] Empty sound buffer when ... -
16K/48K Lower RAM (4116) replacement.You may want to read [URL="http://www.worldofspectrum.org/forums/showthread.php?t=37957"]this thread[/URL] for background information on the quest t…
... particular, in some cases a logic high may be represented by ... is pulled down by a logic low at one of ... will (it uses the same logic levels as 74LS). The ... recognise 2.3V as a logic high on its address ... one that uses original 74 logic levels, but there are many ... -
Speccy collection prepping for sale - Pics includedHi guys, I made a post a while back about having to shift my sizeable collection due to incoming sprog. I gave up typing up the names, so I'm going…
... while back about having to shift my sizeable collection due to ... -
Homebrew Microcomputer design...getting ICs and stuffFor anyone interest in homebrew microcomputer design or just making add-ons and electronics gizmo's..this might be of interest. Sourcing affordable …
... create a ULA and Glue logic. A ZX Spectrums ULA fits ... -
FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…
... 2 pixels from the top ("shift"), character "a" is 5 pixels ... -
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…
... RAM chips and the associated logic in IC23-IC26, so this ... -
Shifting the UDG pointer from a MC loop...I have got myself in a bit of a mess again, I am trying to write a machine code subroutine that shifts the udg pointer (23675) up 64 places then shif…
... (23675) up 64 places then shift it back on the next ... -
Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
... Counter, DMM... but, unfortunately, no logic analyzer.
This is ... 't there anyone with a Logic Analyzer and a IF1/microdrive ... -
+2A in the Essex area for saleI'm selling my +2A, local collection only I'm afraid due to my shift work. [url]http://bit.ly/12oGziU[/url]
I'm selling my +2A, local collection only I'm afraid due to my shift work.
[url]http://bit.ly/12oGziU[/url] -
SE Basic IV 4.1 Buffy previewSE Basic IV 4.0 Anya was released back in December 2012. You can read about it here: [url]http://cheveron.github.io/sebasic4/[/url] But here's some …
... the equivalent letter keys (when SHIFT is held).
[img ... -
New game: The curse of OddvilleDon't get too excited! :p Just wanted to share this because the coding of it is driving me mad, or rather the game designer is. The curse of Oddvil…
... uses Patrick Rak's XOR Shift RND generator, and Einar's ... -
20-column multicolour: a half-baked ideaI was writing an email reply to one Mr Jowett about multicolour routines, and in that way that explaining something to someone else makes you think "…
... have to do actual game logic when working with engines like ... -
C.G.D - Classic Game Designer[b]UPDATE: August 07, 2013 AN UPDATED VERSION OF CGD IS NOW AVAILABLE, DETAILS HERE: [url]http://www.worldofspectrum.org/forums/showpost.php?p=7155…
... Patrick Rak's superb XOR Shift random number generator. Thanks to ... -
ZX Spectrum upper RAM module (4532/4164 replacement)Following the [URL="http://zx.zigg.net/LRR/"]lower RAM replacement module[/URL], there have been quite a lot of requests for something similar for th…
... and will need the support logic ICs (IC23, IC24, IC25 & ... -
Full 16*16-digit BASIC multiplicationI liked Andre Adrian's 32-bit long multiplication routine so much that I decided to a decimal version. After all, 2^63 is only 9223372036854775808, a…
... ("H") : REM RR H ; RIGHT SHIFT UPPER
1230 GO SUB ... ("B") : REM RR B ; RIGHT SHIFT MPR/
1330 GO SUB ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
... ), so Z80 is a complete shift in mindset. It's simultaneously ... -
Homebrew keyboardGuys, just a quick question. I really should know, but I don't :( I've built keyboards for the standard layout before now, and was hoping to expand…
... same time as the Symbol Shift key.
The diode ... single keypress activating the Symbol shift and P key lines at ... -
August sales[COLOR="Blue"]I have about everything listed here in stock. But some of it must be made ready (with custom wishes). [B]Buying directly will save you…
soundfx with BEEP or assemblyhas anyone got any soundfx they have made with BEEP this one does a fart noise BEEP 0.003,5 BEEP 0.003,7 BEEP 0.003,9 BEEP 0.003,7 BEEP 0.003,5 BEE…
... beep you do CTRL and SHIFT to get the E cursor ... and then SHIFT and Z to get BEEPCan a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…
... of books.)
Flawed logic and perhaps exposure to too ...Spectrum 48k video and keyboard issueHi all, few days ago I experimented with battery supply for my speccy (48k issue 2), and I was measuring the voltage and how much current it used. A…
... 2, w, s, z, symbol shift, l o, 9 don't ... , but unfortunately because the symbol shift is not working, I could ...Fastest way to delete a folder?Sometimes ccleaner is enough on some computers I work on, sometimes shift+delete while using Windows or Ubuntu is enough, sometimes rd folder /s /q (…
... computers I work on, sometimes shift+delete while using Windows or ...