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EmuzWinHi folks I'm using EmuZWin and it's started running games super quick (not all games but some) I've tried messing around with speed settings but eve…
... is a useful test of 128 emulation accuracy because it will ... /O is properly emulated on ULA 128s. Emulator authors seem to ... -
Spectrum +2 EPROM in Spectrum +2AHi, My friend Marc bought a +2A from Tim Abbott at the Spectrum 30 event. Back in the day there were companies selling +2 ROMs to put into +2As to r…
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Unless you have a ULA 128 + keypad, or a +2A/+2B ... ) and a version of the 128 editor ROM with three bytes ... -
Spectrum +2 EPROM in Spectrum +2AHi, My friend Marc bought a +2A from Tim Abbott at the Spectrum 30 event. Back in the day there were companies selling +2 ROMs to put into +2As to r…
... ;652913]Unless you have a ULA 128 + keypad, or a +2A/+2B ... -
WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…
... are socketed (and of course ULA), so I can remove them ... generator, with horizontal and vertical counters, and a simple RGB pattern ... -
Revisiting Spectrum CPU clock regenerationWarning: This post will be a bit nerdy :-) Some time ago, I experimented with phase locked loop circuits as a possible way to regenerate the Spectru…
... any integer from 1 to 128 (and you have five ... edge connector is from the ULA, before it is amplified ... ). This output from the ULA has rather slow rise and ... /CLK output from the ULA so it is in phase ... 3.3 volts. (Actually, the ULA's signal never actually makes ... -
Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…
... truth for +2A/+3 models, 128 and +2 does not allow ... is possible to work with 128 more like it is 48K ... handler most likely finish before ULA start to generate screen so ... -
What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…
... /> As there's now a ULA replacement with ULAplus on the ... the "Braine-bow" for the 128 machines. -
semi dead speccy 48k who can helpHi forum , i am busy recovering a 48 k speccy issue 3 board unit. With the help of a more experienced spectrum user from the uk , i managed to get…
... the EPROM (27(C)128?). There's even some ... defective ?? ( i assume ula but how to prove that ... ?? )
Ula is ofcourse the "6C001E-6 ... shows" directly translates as "ULA is okay", although for ... on keyboard connectors, as ULA keyboard pins surely won ... -
semi dead speccy 48k who can helpHi forum , i am busy recovering a 48 k speccy issue 3 board unit. With the help of a more experienced spectrum user from the uk , i managed to get…
... just wishful thinking, and original ULA decoding is simpler...
[*]Wire up a 27(C)128 as proposed earlier by me ... that works
[*]Put an ULA in a breadboard, set all ... (preferably repeated for 5Cxx version ULA's)
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Ghost 'N Goblins - New Loading ScreenInspired by the new loading screen for Ocean's "Where Time Stood Still", I decided that I would go through some Spectrum games that had truly woeful …
... done better today, especially with 128 kB Spectrum.[/QUOTE]
Or improved even further with ULA+ implementation and the huge storage ... -
New colors / switchable color palette with regular ULA ?Hello. This may be an ignorant question but I just thought about it today and wanted to post it here to get some opinions. OK, so, today, while goin…
... bipolar signals), although since the ULA runs on 0V and 5V ... enhanced colours is with the 128 (or +2, +3, +2A). It ... TTL RGBI outputs from the ULA. These represent a four bit ... , B-Y outputs from the ULA are much less easy to ... -
The new Superfo cloneHi In the spanish forum speccy.org some guys and me have optimized the superfo clon to have less ICs. The actual design has 39 ICs versus the 45 ICs…
... computers (ZX compatible) which use ula port #FE with full 8bit ... /> Here is port table with ULA port decoding on russian clones ... GMX
2 - ZX Spectrum +128,+2 7 - KAY-1024SL/Beta ... +2a,+2b/+3 8 - Pentagon 128(1991) D - Pentagon-1024SL
Configuration of FPGA coresHi all! Lately a lot of features have been added to the V6Z80p Spectrum core. Most of them are handled (clearly) using ports. Some examples: ULA+, Ti…
... QUOTE]
A plug-in ULA replacement (such as a ULAPlus ... device will respond to 128 of the available 256 ... . not a plug-in ULA replacement) however can be ... be allocated from the higher 128 ports (i.e. A15 ... on any plug in ULA devices, however only software ...Configuration of FPGA coresHi all! Lately a lot of features have been added to the V6Z80p Spectrum core. Most of them are handled (clearly) using ports. Some examples: ULA+, Ti…
The wording on the FAQ wiki could be a little clearer especially with regards to the the 128 available ports for ULA plugins and the differentiation between IO and memory decoding. I've requested a wiki account, and will perform some embellishment!SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... video ram page like the 128? does it offer any other ...
would this reduce the ula contention and video ram to ...SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]
... video ram page like the 128[/QUOTE]
Yes ... a modern version of a ULA (CPLD?).
... ]would this reduce the ula contention and video ram ... SPECTRA does not change the ULA contention in any way. ... cleverly synchronise with the ULA clock to ensure it ...ZX Spectrum ULA + Glue Logic in VHDL for EPM78128SLC84Hi. I'm wanting the VHDL code for the Spectrum ULA and Glue logic to pop onto a Alter MAX EPM7128SLC84 (CPLD) IC. I'm wanting it to perform : Memo…
The original CPLD ULA (see link in my ... resources (cells).
128 macro cells won't be ... be able to squish the ULA into one CPLD, and ... to fit. Knowing the Spectrum ULA design will help enormously ( ... for RAM? The original CPLD ULA needed to support DRAM ( ...The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... since I know the Beta 128 and Multiface had to do ... trickery here (as per the ULA side of the bus) such ...Spectrum 128K +2 problemhello, i am try to repair my spectrum 128k +2 grey, i remove all ram chips and i have some new ones spares, now i have remove all ram chips, i want …
... RAM. I would imagine the 128 machines were the same? Anyone ... the ROM and to the ULA via 470 ohm resistors. Each ... each data line from the ULA should go to one RAM ... the Z80 CPU and the ULA to operate separately). On the ...Mouse systems for ZX Spectrum[U][B]Mouse systems for ZX Spectrum[/B][/U] Okay, I have been reading the [URL="http://www.worldofspectrum.org/forums/showthread.php?p=688449#post68…
... -AXIS are both easy 8bit counters and return values in range ... used as number in range -128 to 127. For X-AXIS ...Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... T for the left border, 128 T for main screen, at ... T for the left border, 128 T for main screen, 24 ... /03/temporizacao-de-video-da-ula-e-do-clone.html]my ... with the clone of TK90X ULA that was made by Fabio ...RAM Diagnostic ROMhi all, i burn this ROM from here [url]http://www.fruitcake.plus.com/Sinclair/Interface2/Cartridges/Interface2_RC_New_RAM_Tester.htm[/url] and i a…
... x 64k bits = 64k bytes = 128 k bytes.
The ... all ram ic's cpu ula rom and anything goes where ... about the +5 volts on ula 4 pin
what he ... finally found a DMA0 line (ULA pin 4) stuck to +5V ...Strange and faulty toastrackI just got hold of a toastrack, which is kind of strange. First of all, when I opened it, I spotted a socketed ULA and ROM, which is good, however, t…
... it, I spotted a socketed ULA and ROM, which is good ... see the contours of the 128 boot menu, but B/W ...Games with Music BugsI know there is already a thread about games with bugs (and indeed its a awesome thread), but I thought maybe it would be nice to open another one ju…
... is placed high (causing the ULA bug with the game crashing ... 48k music instead of the 128 AY one...
Should these ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... select preconfigured machine config (48/128/pentagon/scorpion/profi/atm1/atm2 ... /> Also it allows to change ULA device on the fly, without ... can see demo with different ULA's with no need to ...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…
... game.
4. Item counters, we must select the ‘N ... the default restart resets the counters which will probably upset your ... ="1"]• POKE from 34366: 33,128,153,54,0,0 this ...SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…
... McLeod_IdeaFix pulling off a ULA+ for the 128, and suspect, like Dunny ...Rainbow Chaos(I so want to call this Law of Chaos to pun on lords) Anyway. Dunno if I'll make this. But if I don't /someone/ will want to. It's just too good an …
... The two issues on the ULA 128s are that the ... no glitching. On the ULA 128s the number is ... of the time the ULA 128 version will just seem a ... benefit to doing a ULA 128 specific version as the ... from Velesoft with the ASIC 128 contention model (and no ...Modern printer with the ZX SpectrumJust curious: If for some reason I wanted to use a printer with my Spectrum, are there any modern printers that would work with it?
... or the ULA 128s. If you have an ASIC 128 then you ...
