-
Issue 2 colour problemsHey all, I've got a slight colour problem with my Issue 2 Spectrum, as can be seen below: [IMG]http://www.bennyalford.com/images/issue2a.jpg[/IMG] …
... . I've also decided to upgrade the memory to 48k, with the ... -
Decent ESXDOS manualI couldn't find a decent manual for ESXDOS, so I created one myself: [URL="http://www.benophetinternet.nl/hobby/vanmezelf/ESXDOS%20manual.pdf"]http:…
... '/C' is a directory for external commands while on third page ... /> if you are going to upgrade this manual to esx085, don ... -
Decent ESXDOS manualI couldn't find a decent manual for ESXDOS, so I created one myself: [URL="http://www.benophetinternet.nl/hobby/vanmezelf/ESXDOS%20manual.pdf"]http:…
... '/C' is a directory for external commands while on third page ... /> if you are going to upgrade this manual to esx085, don ... -
Some thoughs about fast scrolling on 128 modelPlease, consider this article as technically interesting concept not a proven algorithm. ONE The fastest scrollers use long sequence of PUSH inst…
... ]
The jumptable in slow memory will lead to the "snow ... " and may, ultimately, lead to memory corruption. And you cannot use ... be the case when some external hardware is connected.
Issue 2 black paper white borderGot an issue 2 here that has a 6c001e ULA, no cockroach, no transistor mod (although you can clearly see on the top of the z80 and on some legs, some…
... input/output device control, not memory control. You could carefully and ... /> My advice: remove the RAM upgrade, get you multimeter out and ... option is that the RAM upgrade is not making good contact ...Migrating OS to SSDIve been thinking of getting a 120g SSD drive for my pc and migrating the OS (Win7 64bit) to it and just having the OS on it, nothing else (Got 1.5TB…
... looking to a full ram upgrade, 16g ddr3 2000, its already ... of an ssd and that memory, i should get a few ...esxDOS v0.8.5 released (with TR-DOS emulator)Yup, you read right! Now with TR-DOS emulation! More info and download here: [url]http://www.esxdos.org/[/url] Enjoy :)
... use port #E3 for DIVIDE MEMORY paging (compatible with original divide ... for all other external devices. Also memory acces for external devices will disables ... if DIVIDE memory is connect ...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…
... lot easier to use an external, specialized tool to do it ... wouldn't save much but memory is not really a problem ...DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
... FLASH ? This open jumper = disable external divide memory mapping.DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
[QUOTE=1024MAK;715858]Ben
If the ROM on the Speccy is not responding to a 2.7V logic high signal, you could try this little mod.:-
[CODE]
----+--------+--- +5V
| |
Hardware description - MB-02+ interfaceOn this thread will soon released info about MB-02+ idisk interface ( memory paging mechanism, list of ports, addressing, MB IDE, schematics, etc... …
...
MB-02+ use own external DMA chip (type UA828D = clone ... between internal ZX memory/external MB02 memory/internal or external I/O ports ... as during classic non DMA memory access. So DMA access ... +2A/+3 ULA use different memory contention)
[B ...Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…
... * it was it used a memory bank that was being used ... probably left the +3 disc memory area alone.
It ... of a poor quality hardware upgrade that they didn't ensure ...Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…
... a lot of the extra memory is planned for use as ... only intended a small 48K upgrade at first), I might make ... and give it the full upgrade to 128K - Even more rooms ...New multi-interface for ZXI have in development new interface for ZX Spectrum. PCB size is similar as K-MOUSE interface and on board is CPLD (programmable logic), up to 1MB st…
... support 32K or even 64K external ROMs using the standard ... ZX rom emulation/replacement with external SRAM/FLASH EPROM.
... can be loaded to external sram memory and used instead ZX ... br /> Interface will support MB02+ memory paging (allram - 512kB ram/ ...New multi-interface for ZXI have in development new interface for ZX Spectrum. PCB size is similar as K-MOUSE interface and on board is CPLD (programmable logic), up to 1MB st…
... ZX rom emulation/replacement with external SRAM/FLASH EPROM.
external sram memory and used instead ZX ... .
Interface will support MB02+ memory paging (allram - 512kB ram/flashable ...Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…
... top 32k of the Spectrums memory map being bank switched between ... just a unusual 32k RAM upgrade...
[I][B]Mark ...Issue 3 board with strange piggy-back boardIn case you are interested. I?ve never seen something like this before. I have an Issue 3 board here. When I opened the case and found a strange pig…
... a high), the results of memory reads or writes are erratic ... confused.
Now, that RAM upgrade *could* require the user to ...idea: new gaming interface for ZX Spectrum (48k)First of all, I am not an expert this is just an idea of what I would like to see happening in the modern era of the ZX Spectrum. A compact, small, …
... ]You can of course use external logic to get rid of ... or whatever.
For memory card read/writes you'd ...SNES versus Megadrive (yet again...)One of the most debated things on the Internet is which is best between the [B]Super Nintendo[/B] and the [B]Megadrive[/B] (we've even covered it on …
... would've been the better upgrade. The 32X is a right ... /> Of course building a small upgrade at the time would almost ... with the SNES without an upgrade, so even though it was ... zoomed in images from whatever external machines were used for dev ...Gaming Pc - advice appreciatedI don't know much about modern gaming PC requirements (the last time I pushed a PC to the limit with a game was trying to play Microprose GP2 on a 48…
... managable for low end, the memory isn't very good, the ... be a bit tricky to upgrade - no idea if this is ...Anyone Buying a PS4 or Xbox One as Soon as They Are Released?...or, like me, will you wait until they are much cheaper and much smaller. I'm guessing most people on here are over 30 and have bills to pay so ?35…
... to upgrade for a few years. Same with the CPU and memory ... depressing, in the case of memory especially, since very few games ...follow upsWhat computer did you see was a natural follow up from the ZX Spectrum ? For me it was the Atari ST as it still sounded like a Spectrum but had far …
... to pay to get an external diskrive.
So I ... -exclusive) it was time to upgrade to Amiga.
follow upsWhat computer did you see was a natural follow up from the ZX Spectrum ? For me it was the Atari ST as it still sounded like a Spectrum but had far …
... to pay to get an external diskrive.
So I ... -exclusive) it was time to upgrade to Amiga.
ULA snow effectIt's wintertime, you know. [quote="http://ramsoft.bbk.org.omegahg.com/floatingbus.html"]when the I register falls in the range 0x40-0x7F then the UL…
... gap.
During a Z80 memory access (address range 0x4000 - 0x7FFF ... a RD or WR. The external multiplexers on the Z80 address ... mode. However, the ULA dynamic memory RAS/CAS handler still notices ... above, the ULA dynamic memory handler will force RAS low ...Why are multicolour engines only able to be made now?Now I'm no programmer, but, how come multicolour engines are only being created/designed now? I know there were Rainbow Graphics used in games in the…
... 128 only had the extra memory and the sound chip (and ... (to me) like a lazy upgrade, with no planning or thought ...ZX Alien BreedNot sure if this has been mentioned already (I did trawl the threads but couldn't see anything :smile: ), but I've always hankered after a Speccy Ali…
... .mykeweb.co.uk/csscgc2014/images/external/AlienBreedZX.png[/IMG]
The logo and '128K Memory' tagline are a nod to ...Are there any custom +3 DOS file systems?I'm looking to see if there are any custom +3 DOS disk file systems available rather than the 40 track, 9 sector, 512 bytes/sector (I think that is r…
... by Chris Pile, if my memory serves. c'mon guys, it ... a Dr Sunn - my crap memory.....[/COLOR]
There was ... /write +D floppies in an external 720K B: drive. Oh, and ...
