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How feasible is it to add a second CPU to the ZX Spectrum?Today with IDE, and USB, and TCP/IP and other wonderful technologies arriving on the ZX Spectrum, I'm beginning to wonder if we'll run out of CPU tim…
... these devices on the weak Z80 @ 3.5MHz.
But ... maybe a third and fourth?) Z80 shared our contended memory, then ... dreams:
This second Z80, I call CPU1, has access ... -
Spectranet newsIf you read the announcements forum, you know already... ... but the Spectrum tweets! At the Oxford meet, after perhaps three or four pints of beer…
... it turned out. While writing Z80 asm after a few beers ... -
New to developmentHello there my fellow forum chummies, I have recently been bitten once again to go into software development, its been a while. I have a lot of ski…
... C++ and some VERY rudementary z80 ASM. I have downloaded TOMMY ... Spectrum software using ANSI C z80 compiler.
My dev ... a C compiler for the Z80 to be tied into it ... -
ANN: Spud v0.203[url]http://homepage.ntlworld.com/richard.chandler3/Spud_20090709.rar[/url] [code] ADDED: Spud now loads 48k .tzx and .tap files. ADDED: Standalone …
... couple of bugs in the Z80 core (a couple of rarely ... -
range coder on Z80Do anyone understand %subj% ? I tried very simple scheme which can be described by this pseudocode [code] @1 read new VALUE (16 bits) TRESHOLD =…
Do anyone understand %subj% ?
I tried very simple scheme which can be described by this pseudocode
[code]
@1
read new VALUE (16 bits)
TRESHOLD = %TTTT 0000 0000 0000
@2
if (TRESHOLD < 16) goto @1
Free to good homeHi all Just been given a faulty +2A, I need the AY but the Z80 and a copuple of other chips are socketed, so if anyone needs them or whats left of t…
... need the AY but the Z80 and a copuple of other ...Utility to read/write to memory cards formatted for +3EThis post comes from [url=http://www.worldofspectrum.org/forums/showthread.php?t=25658]this thread[/url]. I've released a small command-line utility…
... later is necessary for copying .Z80 and .SNA files, so you ...Two dead SpectrumsHi all, Long time since I posted on here. I'm having a bit of a clear-out, and I've re-discovered two Spectrums I had in the loft : One is an orig…
... I'm suspecting a knackered Z80.
The second is ...SpeccyBoot 1.0 releasedHello all, a couple of months ago I dropped a message about the SpeccyBoot project, which loads Z80 snapshots over the network into a Spectrum. I wa…
... the SpeccyBoot project, which loads Z80 snapshots over the network into ...2 new FPGA based clone from russiaFirst of all I wanna introduce you to the [B]ZX Evo[/B] by NedoPC -> [URL="http://www.nedopc.com/zxevo/zxevo.php"]http://www.nedopc.com/zxevo/zxevo.p…
... a Sprinter2000 might be possible. Z80 is limited to "only" 7Mhz ... differ in having a real Z80 and Ethernet or not. [URL ... 't necessarily require the real Z80 (clocked at 20Mhz), you can ... use Z80-Cores on the FPGA, which ...Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... components such as modualtor, ULA, Z80, memory etc.
Would anyone ... codes for the ULA and Z80, plus Z80 manufacturer, then we can ... />
As the ULA and Z80 can get replaced over time ...Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…
... Sinclair Spectrum, with a true Z80 and a true ULA, and ... can boost performance, like a Z80-DMA inboard, or a DivIDE ..."Lerm" titlesas I was hunting for "Lerm z80 toolkit" I noticed the title doenst carry LERM as couldnt find it, but then when I did I noticed tape copier carries…
... I was hunting for "Lerm z80 toolkit" I noticed the title ... toolkit is titled as just "Z80 Tookit" in the database should ... this be "Lerm Z80 Toolkit"
looking at ...Lancelot 128kHi, everybody! I was interested about Lancelot for the 128k Spectrum, however was unable to get a working copy of the second part. No matter you us…
... used the tzx or the z80 (marked as corrupted), the second ... restore?
Indeed, the z80 in the WOS archive is ...can someone help with a rom routinei have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that wo…
i have been trying to draw a simple line with a the rom routine , but i just cant get it to work , so if anyone can give me an example in z80 that would be great
TIA
CodenameVHidden routine in loading screenAs discussed in another thread, the loading screen for [B]Back To Skool[/B] seems to have a hidden routine (in blue INK and PAPER). It would be inter…
... interesting if someone skilled in Z80 assembly could take a look ...Extended memory and SNApshots in emulatorsExist any snapshot fileformat that support extended memory for ZX (clones) ? I see only Z80 fileformat with 48/128 and 256kB(ZS Scorpion 256) support…
... add new computer types to Z80 fileformat.
[url ... br />
ZX Emulator "Z80 STEALTH" support save extra memory ... in Z80 files (contain added new computer ... types in Z80 format) but not exist ...Demo: The LinkAnother mad strike from the russians, using the 24MHz Z80 on the NeoGS card not to play back .mod files ... but calculations for the demo. Also uses …
... the russians, using the 24MHz Z80 on the NeoGS card not ...another adventure stumper (Beatle Quest)I've got stuck near the end of this preposterous game. Neither of the walkthroughs work with either of the program files available on WoS. This [url=…
... ]BQ_saves[/url] file holds a Z80 snapshot, plus a TAP saved ...Spectrum dead: 8 vertical bars in alternating colorsI have been soldering on this basterd for a long time now. All IC's now have sockets (except the LM1889). I swapped all 4116's by types that are 100%…
... is 100% ok. Swapped ULA, Z80 and ROM for 100% ok ...Listening ZX spectrumI recently got hold of ZX spectrum 48k machine, and it was a joy. But very soon i wanted to be able to transfer games from emulator (.Z80, .snp, .tap…
... to transfer games from emulator (.Z80, .snp, .tap, .tzx) to real ...How do the swingy ropes in Jet Set Willy work?Not sure if this should go in the programming forum but here goes. I remember back in '84 being totally blown away by the realistically swinging rope…
... game but to be honest Z80 assembly language makes as much ...Commando with MusicYears back I downloaded the hacked version of commando that had a rendition of the 64 sid tune in it. It's a .z80 snapshot but has anyone actually go…
... in it. It's a .z80 snapshot but has anyone actually ...Questions on PC distribution of ZX software...Im looking at ways to distribute ZX software (TAP,SNA,Z80,etc) to friends who don't have an emulator, or who aren't technically savay enough to downl…
... distribute ZX software (TAP,SNA,Z80,etc) to friends who don ...Alien fiend emulationHello I trie the game [U]alien fiend[/U] (z80). The keyboard entry are ignored during the game. I try emulzx 2.7 : it doesn't work -klive zx, :…
... game [U]alien fiend[/U] (z80). The keyboard entry are ignored ... zx, : it doesn't support z80 files
-speculator : it work ...Repair options for my own dear old Spectrum 48k?Hello all, This is my first post to this wonderful forum, which is part of a truly great website! My name is Arnold, and I live in Utrecht, The Nethe…
... , the upper part of the Z80 as well, and the ROM ...WAV to TAPI'm having huge troubles trying to convert a program from a real tape to TAP virtual tape. I have tried several utilities and nothing works. I have p…
An idea for a possible(?) new interfaceDue to the Spectrum's processor speed and the way the ULA works, there are a couple things (among others) that are difficult to do: -Gigascreen or a…
... other things that use the Z80 a lot) and send back ... results, in essence leaving the Z80 free to do something else ... be used to give the Z80 a hand.Tinkering with Quique Llar?a's Midi2Ay tool...Im tinkering with Quique Llar?a's Midi2Ay tool, found at: [url]ftp://ftp.worldofspectrum.org/pub/sinclair/tools/pc/midi2ay-0.1.zip[/url] Im not a v…
... /> Im not a very capable z80 programmer, so having difficulty understanding ... from crashing... Is there any z80 genius out there who could ...joystick not supported games.. change via emulator?I was just wondering if there was a program or something you could do in an emulator for some of the games I have.. they are only supporting keys an…
... can save out as a z80 or snap.. and load up ...
