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<1234567…34>
  • New version emulator ZEsarUX-2.0Hi I have uploaded a new version of my ZX80/81/Spectrum/Z88 emulator on [url]http://sourceforge.net/projects/zesarux/[/url] Changes are: Added Ca…

    ... :

    Added Cambridge Z88 emulation
    Added Real audio tape ...
    Added option to emulate RAM refresh
    Added option to enable ... , Z88
    Improved Inves Spectrum+ emulation
    Fixed idle bus port ...
    chernandezba chernandezba January 2015 Emulators
  • Programming flash eprom on DIVIDE+Can you test it on DIVIDE PLUS ? [url]http://velesoft.speccy.cz/other/flasher-divide-plus.zip[/url] (This flash utility is WINSTON's flasher for dia…

    ... for install rom: ";ram : poke 32002,ram
    3 input ... of ram page in 512kB ram in divide plus (ram 0- ... writing in low 16kB ram(rom emulation)
    OUT (23 ... divide plus use different ram pages in DIVIDE PLUS ... only ram and each system can erase and refresh this ...
    velesoft velesoft November 2010 Hardware
  • JSpeccy v0.89 Christmas 2011 EditionHi, After seven months of hard work, tonight I've released a new JSpeccy version as my humble Christmas gift for all the community. As my webpage i…

    ... to 8 Microdrives with unprecedented emulation accuracy, using the new MDV ... the cartridges.
    [*]LEC RAM Extension Emulation, that allow to run the ... and, unofficially, store the LEC RAM pages.
    [*]The fast load ...
    zx81 zx81 December 2011 Emulators
  • New version Emulator ZEsarUX-1.0Hi I have uploaded a new version of my Spectrum/ZX80/ZX81 emulator. This is a major stable version, with real timing for all the models and with hi-…

    ... hotswap machine option
    Added emulation of some other oddities of ... the border)
    Added RAM pack emulation of 32 KB and 48 ...
    Added idle bus port emulation
    Added option to load ...
    chernandezba chernandezba May 2014 Emulators
  • Tinkering with DMASo, some afternoon tinkering... [img]http://photo.alioth.net/tmp/dma_small.jpg[/img] The purpose of this all is to see what's possible using the Xi…

    ... buses and writes directly to RAM, instead of the CPU requesting ... serial flash without requiring nonvolatile RAM (which means you have to ... note I've not mentioned RAM refresh, but that's because I ... 't go over any DRAM refresh maximums).

    This ...
    Winston Winston November 2014 Hardware
  • zx spectrum 48k issue 6A boot fail- black paperohh whats wrong with this poor specie .. boot fail,, border white & paper black .. when reset it shows the red lines to indicate that the CPU is cycl…

    ... is cycling and reading the ram ? when i plug the retroleum ... card in all the ram passes.. but the contention test ... warning about high frequency . the ram refresh tests reports a pass but ...
    mark8bit mark8bit February 2021 Hardware
  • compatibility between ZX computers?Hey all, I'm new here :) I was wondering about compatibility between ZX computers. Is it possible to run a game made for ZX80 on a ZX Spectrum? Or a …

    ... stuff (you can safely page RAM 7 out and it'll ... in the top of the RAM) although I wouldn't have ... need more than 16k of RAM for emulation and the ZX81 isn ... 't exactly bursting with RAM. 4 to ... contended hence the use of RAM 5 and 7 as the ...
    cyborg cyborg July 2003 Sinclair Miscellaneous
  • Investronica Inves Spectrum +Hi, Has anyone here ever heard of the Investronica Inves Spectrum +? This site [url="http://www.silicium.org/uk/sinclair/inves.htm"]http://www.sili…

    ... Sinclair range of Spectrums. The RAM was composed by just two ... mapped in that area). The RAM refresh is made by four chips ...
    na_th_an na_th_an June 2005 Sinclair Miscellaneous
  • Zx Spectrum Laptop (again)I've been reading all the old treads about a possible portable speccy. I even found the one about the Speccy Laptop. But it seems there's a lot of ne…

    ... of the old-style RAM and replace them with ... effects achieved by lack of RAM refresh will be lost (unacceptable ... DRAMs?): You get the RAM chip count reduced 4 ... or 8 times. Old RAM drains lotsa power.
    ... longer be needed by the RAM replacement?

    ...
    Marcelo Marcelo March 2007 Sinclair Miscellaneous
  • 16k Spectrum.How come emulator's in 16k mode don't provide 32 ram-pack support.

    This is all very well and good, but can we get back to the point I'd like to see 32k ram pack emulation
    chop983 chop983 March 2007 Emulators
  • 16k Spectrum.How come emulator's in 16k mode don't provide 32 ram-pack support.

    ... 'd like to see 32k ram pack emulation[/QUOTE]

    Sorry ... achieve by emaulating a 32K RAM pack? I would assume that ... the circuitry in the ram pack simply mirrors that of ... "features" that can with your ram pack? (reset button, snapshot button ...
    BloodBaz BloodBaz March 2007 Emulators
  • Features that emulators don't haveI believe most of us use more than one emulator, mainly because there isn't one emulator that has all the features we need or want to use. We also kn…

    I'd like to see 32k Ram Pack emulation while in 16k mode
    chop983 chop983 March 2007 Emulators
  • Features that emulators don't haveI believe most of us use more than one emulator, mainly because there isn't one emulator that has all the features we need or want to use. We also kn…

    [QUOTE=chop983;177347]I'd like to see 32k Ram Pack emulation while in 16k mode[/QUOTE]

    With the same wobbling effects as on the ZX81?
    Dr BEEP Dr BEEP March 2007 Emulators
  • Features that emulators don't haveI believe most of us use more than one emulator, mainly because there isn't one emulator that has all the features we need or want to use. We also kn…

    [QUOTE=chop983;177347]I'd like to see 32k Ram Pack emulation while in 16k mode[/QUOTE]
    Oh, and I want to see faulty upper RAM emulation for the 48K model...

    Si
    obo obo March 2007 Emulators
  • Magazine viewer vs FirefoxThe Magazine viewer still doesn't work in Firefox is this likely to every be sorted out?

    What is Magazine Viewer? and more importantly, why the hell doesn't it work in FF?
    PS: How is 32K RAM pack emulation going?
    BloodBaz BloodBaz March 2007 Sinclair Miscellaneous
  • Spectrum 48K ROMHi Can anybody help I have an Issue 6a Circuit Board which has a faulty ROM Chip. Is it possible to program a ROM Chip with the 48K ROM and fit it as…

    ... seems related to
    a) RAM refresh
    b) ULA bus mastering ... to same line in lower RAM.
    In R is linked ... is linked directly to the RAM, and RASL in the ULA ... of the schematic do the RAM refresh, but I'm no 100 ...
    Zup Zup April 2007 Hardware
  • ZXF11 now available!To celebrate 25 years of Spectrum computing, ZXF magazine has returned with a special celebratory issue! Before I give you the link, a couple of poi…

    ... be upgraded with a 32K RAM Pack. Sinclair Research never made ... you obviously missed my 32k ram-pack emulation campaign
    chop983 chop983 April 2007 Sinclair Miscellaneous
  • ZXF11 now available!To celebrate 25 years of Spectrum computing, ZXF magazine has returned with a special celebratory issue! Before I give you the link, a couple of poi…

    ... you obviously missed my 32k ram-pack emulation campaign[/QUOTE]

    woodcock88 woodcock88 April 2007 Sinclair Miscellaneous
  • Benchmark timeWell, the BASIC benchmark posted in Creative Computing back in the 80s came up as a topic on the AtariAge forums. The article is available online an…

    ... bus contention caused by video refresh that slows it down where ... CPU isn't interrupted and RAM refresh is accomplished just by updating ...
    JamesD JamesD December 2007 Sinclair Basic
  • Benchmark timeWell, the BASIC benchmark posted in Creative Computing back in the 80s came up as a topic on the AtariAge forums. The article is available online an…

    ... contention caused by video refresh that slows it down ... isn't interrupted and RAM refresh is accomplished just by ... C code in uncontended RAM so there is no ... slowdown due to video ram access conflicts in that ... one. The spectrum's ram is only contended while ...
    Alcoholics Anonymous Alcoholics Anonymous December 2007 Sinclair Basic
  • ANN:Spud v.02Well here we are, post number 10,000 and it's a momentus if not slightly nerve racking one because today I unleash upon the world Spud, my ZX Spectru…

    How about 32k ram pack emulation whilst in 16k mode

    I like the help guide
    chop983 chop983 September 2008 Emulators
  • ANN:Spud v.02Well here we are, post number 10,000 and it's a momentus if not slightly nerve racking one because today I unleash upon the world Spud, my ZX Spectru…

    [QUOTE=chop983;301606]How about 32k ram pack emulation whilst in 16k mode

    I like the help guide[/QUOTE]

    Don't forget to emulate "RAM Pack Wobble" as well.
    MrCheese MrCheese September 2008 Emulators
  • ANN:Spud v.02Well here we are, post number 10,000 and it's a momentus if not slightly nerve racking one because today I unleash upon the world Spud, my ZX Spectru…

    [quote=chop983;301606]How about 32k ram pack emulation whilst in 16k mode

    I like the help guide[/quote]
    Ta, it's the only thing which works properly...
    rich_chandler rich_chandler September 2008 Emulators
  • Test ROM Cartridge For SaleI'm selling another load of gear including a Sinclair Research Test ROM Cartridge. [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=4000772…

    ... routine into the 16K video RAM that executes a tight ... />
    6. The RAM Test.
    The RAM Test tests every location ... here may indicate that the RAM refresh is not functioning properly - ... maintained in both areas of RAM, and corruptions are reported. ...
    murtceps murtceps October 2009 Sales
  • DMA interface for ZX Spectrum[url]http://velesoft.speccy.cz/data-gear.htm[/url] This is internal DATA-GEAR interface for any 8-bit computer with Z80CPU. Use Direct Memory Access…

    ... zilog ideal world no ram refresh and certainly no video ... ula ram contention to contend with ... transfers from rom area to ram or for +2a rom ... 1-4mb of sam ram and networking please masterdos ... lite hdf compact flash ram cards please help him ...
    Roger Jowett Roger Jowett October 2010 Hardware
  • JSpeccy v0.89 Christmas 2011 EditionHi, After seven months of hard work, tonight I've released a new JSpeccy version as my humble Christmas gift for all the community. As my webpage i…

    ... to 8 Microdrives with unprecedented emulation accuracy, using the new MDV ... the cartridges.
    [*]LEC RAM Extension Emulation, that allow to run the ... and, unofficially, store the LEC RAM pages.
    [*]The fast load ...
    rich_chandler rich_chandler December 2011 Emulators
  • 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... …

    ...
    Only 16kB rom/ram pages is supported.

    ram page 0 with write protect ... ZX rom external 16kB ram page number 7 with ... from zx ram 32768 to MB-02+ ram (rom emulation):[/B]< ... MB ram is read only for perfect rom emulation. Is ...
    velesoft velesoft August 2013 Hardware
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    32k ram pack emulation whilst in 16k mode.
    chop983 chop983 January 2015 Emulators
  • Features that are still wanted in Spectrum emulation.Features that are still wanted in Spectrum emulation. 4 USB joystick/gamepad input for real multiplayer games - Yes, Bomb Munchies.... - Sinclair 12…

    [QUOTE=chop983;815403]32k ram pack emulation whilst in 16k mode.[/QUOTE]
    What would that achieve and why would you want it?
    rich_chandler rich_chandler January 2015 Emulators
<1234567…34>

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HitBox

Word Docs Hits
ram 12.6K 21.4K
refresh 1.1K 1.5K
emulation 8.2K 10.9K

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