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RGB video issue on +2 and +3. Signal high?I have a couple of +3's and a new +2a that arrived today. When I plugged in the +2a using my RGB lead from Retro Computer Shack I was reminded of a n…
... was reminded of a niggling issue.
Anyone seen anything ... have the same cutting out issue with the SNES and Master ... -
DivMMC Enjoy - I'm not enjoying it!My DivMMC Enjoy arrived today. Excitedly I rushed home to plug it into my +2a. I have quite a few SD card/CF solutions for my computers so I know wha…
... manual says 128k SNA and Z80 files won't work on ... tape fine.
The issue does seem to be 128k ... -
48k issue 2 video issueHi folks. I am currently tring to fix an issue 2 board. I was getting the yellow greenish screen. (also there there is a lower ram fault with it i th…
... currently tring to fix an issue 2 board. I was getting ... -
Return to basic from sna created by Z80 compilerHow can I go back to basic when running sna created using Z80 Assembler ([url] http://www.worldofspectrum.org/utilities.html#crossass [/url])? For e…
... when running sna created using Z80 Assembler ([url] http://www.worldofspectrum ... -
Issue 1 16K RAM bankFolks, I recently had a chance to fix a couple of Issue 1 boards, and learned the hard way that the chips in the 16K RAM bank have a different place…
... to fix a couple of Issue 1 boards, and learned the ... (IC13...IC6)
with Issue 1, chips arrangement is D7 ... naught. Sigh.
The Issue 1 board layout is not ... -
Issue 1 Speccy - ?6,000!Just seen this: [URL="http://www.ebay.co.uk/itm/Sinclair-ZX-Spectrum-Issue-1-Console-Serial-No-001-000009-RARE-/141543731934?pt=UK_VideoGames_VideoG…
... .uk/itm/Sinclair-ZX-Spectrum-Issue-1-Console-Serial-No-001 ... .uk/itm/Sinclair-ZX-Spectrum-Issue-1-Console-Serial-No-001 ... -
Issue Two 16K doesn?t like any keyboardI have a strange Issue Two 16K Spectrum here, that doesn?t like any keyboard. With the original keyboard fitted, it boots, but no key works. Okay, I …
I have a strange Issue Two 16K Spectrum here, that ... -
ZX Spectrum+ DivMMC EnJOY! Grundig 16" LCD TV and books.The Spectrum is in very good condition. Composite video mod. New mambrane (bought in November 2014 from rwap_software [url]http://www.sellmyretro.co…
... Spectrum+. Issue 4S.
Serial: "Upgraded".
- Replaced Z80 with supplied ... /> - Fitted supplied socket and new Z80.
- Power on: 530 mA ... -
Spectrum +2 (grey) RAM issueHi, I?ve got a ZX Spectrum +2 (grey) with what I think is a RAM issue. I used to be able to load games very reliably by playing converted TAPs and …
... I think is a RAM issue.
I used to ... RAM page 5 has an issue.
Here?s a ... same time? It's an Issue 3 PCB.
[I ... being incorrectly mounted on the Issue 3 PCB. I can't ... -
Help for beginner with z80Hi chaps, I'm reasonably new with z80, but had a fair amount of experience with 68000, so decided to give a few things a go. One little thing I'm t…
... /> I'm reasonably new with z80, but had a fair amount ... -
Three Spectrum main boards (Issue Two, 3B and 4A)I will be offering three partially tested Spectrum main boards (Issue Two, 3B and 4A) on Ebay. All boot to the Sinclair (C) message. All fully popula…
... partially tested Spectrum main boards (Issue Two, 3B and 4A) on ... -
Floating Point Package Math48<br>I came across a neat little floating point package for the z80 and I'm adapting it now to work with z88dk and sdcc. There is an interesting…
... point package for the z80 and I'm adapting ... Label Pascal for the z80 around 1980 and later ... registers. The floating point format is 48 bits with ... with an almost identical format as this one. Genmath ... also faster than other z80 implementations I have seen ... -
SkoolKit 4.4<div><font face="Arial, Verdana"><span style="font-size: 13.3333330154419px; line-height: normal;">Hey, first SkoolKit release announcement since the…
... disassembling Spectrum software, into ASM format or into a bunch of ... can do:disassemble SNA snapshots, Z80 snapshots, SZX snapshots, and raw ... Fuse, SpecEmu, Spud, Zero or Z80
automatically label routine entry ... -
ZX Interface 1 Compatability<p>I wondered if anyone knows of any compatibility problems between the ZX interface 1 and certain Issues of the Spectrum motherboard?</p><p>I just p…
... thing to work with my Issue 3 Spectrum+. I connect it ... extended BASIC commands like CAT, FORMAT etc.I did think the ... the set up on my Issue 2 48k everything sprang into ... . So going back to the Issue 3. Even though I can ... -
Issue 3 /3b power rail improvements<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--> <p class="MsoNormal">Hi F…
... /> I have seen the odd issue 3 and 3b’s with ... will be?I have an issue 3 I trying to get ... -
Spectrum Show Magazine Issue 6Issue 6 of The Spectrum Show Magazine is now available from my blog (see sig).
Issue 6 of The Spectrum Show Magazine is now available from my blog (see sig). -
.DSK format documentation?Unfortunately the web page at WOS points to a broken link for documentation on the .DSK format for +3 discs, and the FAQ wiki doesn't have any docume…
... for documentation on the .DSK format for +3 discs, and the ... any documentation on the .DSK format, either.
Anyone have any ... to get them in some format that emulators understand. -
Falling Blocks - new game from z80 assembly beginner<p>I started learning z80 assembly earlier this year, mostly from reading Jonathan Cauldwell's "How to write ZX Spectrum Games" and from reading arti…
I started learning z80 assembly earlier this year, mostly ... -
Ziloghino - Arduino like Z80 systemHi, I found this board on Kickstarter, the Ziloghuino. It's an Arduino like Z80 system extensible with hardware shields. With some effort maybe s…
... . It's an Arduino like Z80 system extensible with hardware shields ... -
Execution map file support in different emulatorsAs I'm now seeking about execution map files, the different emulators support, I want to start a new discussion here. Today, I tried to create a mem…
... create a memory map with Z80 emulator, but my machine is ... fast. But the map file format is described well in the ... />
We have now:
*********************** Z80 emulator:
file extension: *.map ... -
TV Pal, odd and even framesI have been researching, but haven't found any real interesting information on this subject, so far. What I mean is, since TV PAL signal is interl…
... also possibly avoid the ULA snow effect, and maybe prevent us ... read something from a floating Z80 bus or similar.
Just ... -
Could ELITE's wireframe graphics be improvedWas watching this video last night comparing the BBC and Spectrum version of Elite: https://www.youtube.com/watch?v=Ov4OAteeGWs It seems that the…
... this being much of an issue back in the day (we ... 's the fault of the Z80 CPU that the Speccy couldn ... -
DEFFNder: a small library of BASIC functions written in Z80I've published a small library of 15 Sinclair BASIC functions written in Z80. I wrote it last year for a project of mine. Some of them are generic, s…
... Sinclair BASIC functions written in Z80. I wrote it last year ... -
External Z80 CPUHi Looking for some advice if possible. Many years ago I had a plug-in board for a Spectrum 48k which had a couple of switches, a z80 CPU, and a S…
... a couple of switches, a z80 CPU, and a Spectrum ROM ... can't recall how the Z80 was switched. The ROM seems ... -
ZX Spectrum issue 2 has only blue tintsRecently I've bought a 16k speccy and ran into some issues with it. Faulty keyboard, broken caps, no stable frequency, faulty lower RAM chip, it bein…
... have the blue tint issue and loading issue. From the research I ... could be because of another issue (or that I'm just ... luck)
The not loading issue might be because of a ... -
Subtract 4 from an addressThis is a novice Z80 question really: I'm trying to vertical scroll my back buffer, but I'm not sure of the quickest way to apply an offset and mo…
This is a novice Z80 question really:
I' ... , NOT in the speccy display format.
I start by ... -
z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... started reading numerous books around z80 assembly. It's slow going ... in the dark arts of z80 assembly! -
1-Bit Sound AccuracyI'm hoping someone can give this snapshot a try on a real machine (just press enter to start the music): https://drive.google.com/file/d/0B6XhJJ33xp…
... modified to work on any z80 machine and to allow the ... if this is an emulator issue or if I actually have ...
