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New MEMFACE projectMEMFACE is my old project, but never finished. Now is PCB done (at the post office) and I write firmware for CPLD. MEMFACE is interface with external…
... is interface with external memory flash eprom 512kB and ... /> - external rom can full replace internal zx rom and enable ... /> - can disable external memory on next connected devices (next ... /> - emulation of DIVIDE 512kB memory (classic divide, divmmc, divide ... -
Converting a 16K speccy in +3??Yes, you heard right. A new interface to convert a 16Kb speccy into a Spectrum+3 have been developed. [IMG]https://lh6.googleusercontent.com/N2eAoz5…
... /> - NMI button
- 512Kb flash memory containing until 32 different ROMs ... -
Memotech MTX512 main board and lower caseSomehow Sinclair related: I?m selling a Memotech MTX512 main board with its lower case: [URL="http://www.ebay.de/itm/131384175282?ru=http%3A%2F%2Fww…
... MTX512 main board with its lower case:
[URL="http://www ... -
Using an EPROM in a 48K SpectrumThere are plenty of guides as to how to do this floating around, however I didn't like the fact that you can't then plug in the standard 27128 ROM ch…
... .uk/electronics-articles/how-to-replace-the-rom-of-a-zx ... can only use the bottom 16K of the EPROM, but you ... -
ZX Evolution -- contended memory and raster emulationFresh bleeding update for [url=http://www.nedopc.com/zxevo/zxevo_eng.php]ZX Evolution[/url] [url=https://code.google.com/p/pentevo/source/list]Baseco…
... -- raster and ULA contended memory emulation for original 48k and ... />
1. Contened memory is emulated as described here ... some help with raster/contended memory
Mike & ... valuable insight into contended memory topic and useful discussions.< ... -
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…
... that the chips in the 16K RAM bank have a different ... -
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 …
... have a strange Issue Two 16K Spectrum here, that doesn?t ... -
Seeking April fool article: turn 48k into 128kHi everyone! When I was about 11 years old (I think ?) an article appeared in a Spectrum related magazine. It turned out to be an April fool's joke,…
... /> I owned a ZX Spectrum 16k and it took me almost ... code to run in a lower address. When I finally got ... -
Beau Jolly Value Pack 16K Version Inlay MIAI was hoping to find the inlay for this compilation (16K pack version) but WoS doesn't have it. [URL="http://www.worldofspectrum.org/infoseekid.cgi…
... the inlay for this compilation (16K pack version) but WoS doesn ... -
TR4/TR5 replacementHi guys, I've got another Spectrum I'm working on now - an Issue 4S this time. When I originally got it, I powered it up and did the basic tests a…
... ]. Testing the voltages on the lower RAM IC's show they ... , I know I need to replace TR4 and TR5 in order ... the lower RAM IC's, so I'm planning to replace TR5 ... -
Hey Hey 16k tour dates<p>Hopefully this one works!</p><p>Hey Hey 16K is the brand new two man rock opera from MJ Hibbett (and Steve), the people who gave the world <a href…
... this one works!Hey Hey 16K is the brand new two ... ' and, of course, 'Hey Hey 16K'. It's an hour's ... -
SpecBAS 0.844 releasedHi all - it's been a while... Having some unexpected extra time off work, I've been able to get some work done on SpecBAS and it's now a bit more …
... scrolling long lists
REPLACE$(target$,[EXP] substr$, replace$) - using EXP with ... $ as a regular expression
REPLACE$ now replaces all occurences of ... /> Array copying MAT a()=b() memory leak fixed
TOKEN$ didn ... -
I'm writing an Operating SystemOkay this might seem like a bait thread, but I am legitamately interested in figuring out how to write a multi-process system for the ZX Spectrum (no…
... if this will work on 16k, but primarily aiming for the ... handled having multiple processes sharing memory and/or processor time.
How to replace broken images on Infoseek ?Would it be possible searching infoseek from a search box within the forums just as in the old WoS ? This way you may have the user navigate within …
... /questions/92720/jquery-javascript-to-replace-broken-images
http://stackoverflow ...128k toast rack diagnosisHi - I recently won a 128K toast rack, and have got a Retroleum smart card. I've tried a couple of games and all seems fine...-ish.<div><br></div><di…
... like the membrane?2. 128K Memory test runs through up to ... I guess I can just replace that if I need to ...Contended memory and TritoneQuick question regarding contended memory...<div style="font-style: normal;"><br></div><div style="font-style: normal;">I'm testing ideas with Triton…
Quick question regarding contended memory...
I'm testing ideas ... the player code after 0x7fff memory address and the data in ... contended memory, and it doesn't seem ... being run from non contented memory, so I think it actually ...Creating a ZX Spectrum Development Environment on Mac OS XI’ve been using a Macbook for a while now and am so impressed with it I decided shift my ZX Spectrum development from PC. It took me a little while t…
... /> end tell[/code]
Replace “/Applications/SevenuP-v1/“ to wherever ... what went wrong or what memory position the labels are at ...another non working issue 3 48kHi all, next! :) I don't have good filings about this speccy :) https://youtu.be/D9qpCR18-kI here is short video what this speccy do. we hav…
... -5 on leg 1 at lower memory chips, i change ztx 650 ...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…
Recently I've bought a 16k speccy and ran into some ... stable frequency, faulty lower RAM chip, it being 16k, the only being ... but hey), switched out the lower RAM for a modern solution ...Spectrum Ram UpgradeHi, I am looking to upgrade my 16K Spectrum to 48K. I have some 41256 dram chips from an old QL memory expansion, can the Spectrum us the large…
... am looking to upgrade my 16K Spectrum to 48K.
memory expansion, can the Spectrum us ...48k Memory MapIs there a link or info anywhere that explains the 48k memory layout? My game uses double buffering and I'm trying to decide where the best memor…
Is there a link or info anywhere that explains the 48k memory layout?
My game uses double buffering and I'm trying to decide where the best memory location should be.Sinclair QL bad memoryI googled around trying to see if there was a resource for this but didn't really find anything specific. I have a QL with the white screen proble…
... screen problem which indicates bad memory, so I plopped a Minerva ... you addresses of the bad memory...Problem is that doesn't ... help me identify which IC memory chip it is. Is there ... " a good chip on each memory chip but the only result ...Recommend-me-do - memory card devicesSo, both myself (with a +3 that has a dodgy drive) and my friend (with a +2) are looking at the various options for loading from memory card. What…
... various options for loading from memory card.
What do ... to find their way onto memory card?The right size for Standard Betadisk 48k TR-DOS v4 ROMs is 8k and not 16kHi Emulator-Authors, I just want to clarify, that Betadisk 48 ROMs TRDOS v4 ROMs has size of 8 kByte and not 16k Byte. Only TRDOS v5 (of Beta…
... of 8 kByte and not 16k Byte.
Only TRDOS ... 8k ROMs together to one 16k ROM (e.g. with MSDOS ... +TRDOS48K TRDOS.ROM).
This 16k ROM can than be used ...New NIRVANA+ feature: wide tiles!The size of each bicolor tile in [b]NIRVANA+[/b] is 2x2 characters (16x16 pixels), like this: [img]http://i60.tinypic.com/mw358y.png[/img] [i]* M…
... again 2 pixels higher or lower:
[img]http://i61 ... ] distribution, to avoid using more memory than previous version. If you ...lower part of the grey Spectrum +2's caseHi, does anyone have a spare lower part of the grey Spectrum +2's case for me - I mean the base part of the case. Greetings Ingo.
Hi,
does anyone have a spare lower part of the grey Spectrum +2's case for me - I mean the base part of the case.
Greetings Ingo.The history of ESXDOS, the DivMMC and the DivMMC EnJOY![img]http://benophetinternet.nl/hobby/divmmc_history/1%20esxdos.jpg[/img] These are the stories behind esxDOS, the most popular operating system e…
... /> - swap partition
- virtual memory up to 4Mb
- port #3F replace with new port adress #EB ... the ZXMMC.
The DivMMC memory mapping is compatible with that ... other ports.
The memory paging port is compatible with ...SINCLAIR ZX80 + 16K ORIGINAL EXPANSION ROM!!!http://www.ebay.co.uk/itm/-/171965470419? Here you are my ZX80 in perfect working condition. It was upgraded in 1981 with the new rom and keybo…
12V Rail - Spectrum 48kOkay - I may just be having a senior moment here, but I'm running out of ideas. I'm working on a Spectrum Issue 4S board,and have had to remove al…
... had to remove all the 16k RAM chips and work on ... 2 board here with no lower RAM, and the rail there ...No contended memory?Sorry if this is a stupid question. But I'm trying to learn more about the ZX Spectrum. If I had a stock 48k Speccy and I could wave a magic wa…
... magic wand to remove the memory contention, what software would break ...
