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SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…
... specific address or I/O port.
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UNTIL ... onto the address bus during port IO operations. This means that ... effectively compute a 16-bit port number! The spectrum itself uses ... Well, because of this feature, port numbers in SPIN are always ... -
ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…
... .
But how is contended memory refreshed? By constantly reading ... -
zx spectrum +3hello fellaes from europe, greece, last week finally i found a zx spectrum 3, with a damaged drive, a power supply that works fine, and a black wire …
128 I/O portsIn The Spectrum Hardware Manual there is a small circuit on page 71/72 to allow 128 I/O ports by using IORQ+A7 to override IORQGE, so any I/O access …
... I/O access at a port with A7=0 prevents the ...The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…
... that it will make the port footprint bigger (it'll require ...Graphic equalizer m.c. program neededBack in the 90's I had a full-screen attribute equalizer that was simple, yet very impressive. We used to listen to Vangelis or Jean M Jarre by conne…
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Keep bit 5 of port 254
Increment counter ...A little bit more on Ocean == US GoldJust doing research for a secret project for next year[1], and found this: [url]http://www.worldofspectrum.org/showmag.cgi?mag=C+VG/Issue036/Pages/C…
... games to the UK and port them to the popular UK ...Gryzor for DOS, apparently by OceanAnybody know anything about a Gryzor for DOS "made by Ocean"? It is in fact just Konami's/Banana's Contra for DOS, with a modified title screen and d…
... my guess that the Amiga port of Gryzor exists (on which ...Adventures in Programmable Logic Part 2So, now armed with an Xilinx Parallel III cable, an XC9536 CPLD, a breakout board with power, a JTAG pin header and a 44-pin PLCC socket, I could try…
... otherwise the PC's parallel port would have been dead, too ...It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…
... high (A15 on the through port will be controlled via the ... any peripherals on my through port from paging their ROMs in ...Wii hacked for native homebrew, bootable Linux DVD on the way, could FUSE port over?It appears the Wii's protection has been bypassed, allowing the promise of homebrew development for this console: [url]http://www.engadget.com/2007/…
It appears the Wii's protection has been bypassed, allowing the promise of homebrew development for this console:
[url]http://www.engadget.com/2007/12/28/nintendo-fully-hacked-for-native-homebrew/[/url]
[URL="http://youtube.com/ ...Ethernet: Memory prototyping...Spectrum Ethernet blog updated: [url]http://spectrum.alioth.net/doc/index.php/Current_events[/url] Summary: 1. A rubber key expanded to 304k. 2. RE…
name that game again i'm afraid...you are a ships captain. you buy stock, you sail off and you port at the other end and sell hopefully for a profit you always had an adveture betwe…
... , you sail off and you port at the other end and ...Spectrum 48K video fixI have done this mod to my 48k speccy and now when i plug the spectrum into the tvs composite port i just get a black and white picture no colour. It…
I have done this mod to my 48k speccy and now when i plug the spectrum into the tvs composite port i just get a black and white picture no colour.
Its an issue 3 board with rubber keys.From The LoftHello All I have just been up in the loft (I have to clear it out Mrs VQ says so), and found my old Spectrun+2 (boxed) with outer sleeve telling me i…
... /> ebay is probably the first port of call, but is it ...Putative guide to CSSCGC 2009Can I start by saying kudos to Digital Prawn! His tireless promotion of this year's CSSCGC is practically certain to make it the best one ever. Ass…
... desirable - perhaps a good Spectrum port of the BBC game Zalaga ...DivIDE HelpHi all, After a rather long wait my DivIDE from Papaya labs arrived. I connected it to my spectrum, turned it on and...nothing. The green power LED…
... I can tell the expansion port works fine - I've got ...Original Kempston interface on a +3Hello everyone, if i insert an original kempston interface in the extension port of a +3 should it work or not? I tried it and the machine didn't bo…
... kempston interface in the extension port of a +3 should it ...External keyboard, strang behaviorHi all, I am using an external keyboard on my 48 K speccy since nearly two decades without any problems. I can not exactly remember where I got it f…
... added an IF 2 Joystick port on the Speccy. I wired ...DivIDE+ and 128K HeatsinkI got my DivIDE+ yesterday and i tried it on a 48K+ at first, it worked marvelously on it, no problems at all. Today i desided to try it on my 128 H…
... /> I used a standard single port kempston interface after that and ...A warning for anyone considdering Virgin Media as an ISPAfer virgin clevery removed all the files on my web space I was unable to gain access to it via my client CuteFTP. I have attempted to contact them a…
... /> 12:03 FTP site connection port: ###
12:03 FTP Login ...Mapper of Spec+3 - Needed schematic equivalent .And also wondered if the register 1FFDh bit0 = 1, the port mapper 7FFDh disabled ? Possible only such combination pages? [CODE]┌──…
Is there anything like Star Port on the Spectrum?That game is great, and I'd like to see more of the same. It's one of my favorites, and I'd love to have something like it for the Spectrum. If any…
That game is great, and I'd like to see more of the same. It's one of my favorites, and I'd love to have something like it for the Spectrum. If anybody knows of anything similar, could they please post it?Recording music from Spectrum 128Does anyone have any tips for recording music or improving sound quality from a real Spectrum 128 +2? I tried the obvious method of running a jack t…
... from the tape/sound output port on my +2 to my ...Zip disk long format problemHere's a puzzler. I've checked out the Iomega help & FAQs and Iomega user forum and Usenet and haven't as yet fully resolved this problem - so now I'…
... connected directly to a USB port (no hub) using original Iomega ...+3e ROMs v1.35 & ResiDOS v2.05 releasedI've just released a new version of the +3e ROMs (v1.35) and ResiDOS (v2.05). As well as a number of bugfixes, there are a few useful improvements: …
... is now supported
[*]New port available for ZXCF+2 interface ...
[*]New port available for ZXUSB (on ZX ...Interesting setup at Retromadrid'08[url]http://www.bytemaniacos.com/galeria/main.php/v/reuniones/rm2008/Octocom+-+demo+Insert+Coins+2.JPG.html[/url] [url]http://www.bytemaniacos.com/ga…
... the +3's B: drive port?
What about that disk ...+12v/-12v/9v and peripherals?Do any peripherals use the +12v, -12v or 9v lines exposed at the edge connector? Firstly, if they use +9v they won't work on a +3, since the +3 does…
... ).
For the through port on the board I'm ... video signals on the through port, but everything else will be ...