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  • Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…

    ... this.

    Z80 in ReVerSE runs at 42 ... MHz (comparable to 70 MHz Z80).

    Two ... options:
    1. Fast Z80 on the mainboard. Plusses: easy ... option.
    2. Fast Z80 in NeoGS card, invisible ... may be added to Z80 instruction set, 2 MB ...
    Alone Coder Alone Coder June 2013 Development
  • "Jumping Jack" on Kempston Joystick.Hello. I'm new here, so at start I want to welcome everybody :) I'm totally newbie in ZX Spectrum. But I'm still own Timex without cassete player (I …

    ... for sure on original "Kane" Z80 snapshot file is my Kempston ... Polish Magazine "Bajtek" (05 / 1988 - page 13). But I typed some ... to convert it to TZX/Z80 file to use with Marvin ...
    olesio olesio June 2013 Games
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... "]ZX Spectrum loading schemes[/URL] page. Seeing that there are some ... !

    My level of Z80 competence can best be described ... (SQL and C#, mostly), so Z80 is a complete shift in ...
    stephenw32768 stephenw32768 July 2013 Development
  • The Cambrian Explosion - 1st place demo at Chaos ConstructionsGreetings from sunny St Petersburg, where the Chaos Constructions demo party has just wrapped up! Obviously, getting to a Russian party in person was…

    ... /prod.php?which=61692]Pouet page[/url] / [url=http://zxdemo.org ... =r9ZTyiECekQ]Tony Bastable buying a Z80 in Japan[/url] as sampled ...
    gasman gasman August 2013 Brand new software
  • Hardware description - MULTIFACE 128I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded from WOS. But all PCB layers on WOS contain some bugs, absent signals, etc.. Now …

    I make schematic of MULTIFACE 128 (v36) from PCB layers ... I don't have real MULTIFACE 128. But schematic structure correspond ...
    velesoft velesoft September 2013 Hardware
  • ZX Spin kicking up a strange errorDon't know if this is a 'strange' error or not, but it refuses to load certain Z80 files stating: [B][I]This Z80 file contains a block that decompre…

    Don't know if this is a 'strange' error or not, but it refuses to load certain Z80 files stating:

    [B][I]This Z80 file contains a block that decompresses to greater than 16384 bytes[/I][/B]

    Whats going on?
    daveysludge daveysludge September 2013 Emulators
  • Suggestions for the "Professional Adventure Writer" pageReading through my old Wicker Woman thread, I remembered something that I had found on the PAW page; There is a possible mix-up in the actual downloa…

    ... had found on the PAW page; There is a possible mix ...
    The Lone Magpie The Lone Magpie September 2013 Infoseek database
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... I can get a decent Z80 assembler that will work on ...
    David Jones David Jones September 2013 Development
  • Copying data between memory banks in USR0 modeI am experimenting with Funky Fungus to load the majority of its data (levels, screens, music etc.) into memory banks 1, 3, 4, 6 and (partly) 7 by sw…

    ... DivIDE by using Velesoft's .Z80 loader files or, if ESXDOS ... whole of its contents (49152,16384) into bank 0 at 49152 ... />
    Unfortunately my knowledge of Z80 MC - or any MC for ...
    Alessandro Grussu Alessandro Grussu September 2013 Development
  • Super Wonder Boy Encoding Scheme MisclassificationThe original Activision release of [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0005053"]Super Wonder Boy[/URL] is listed as having an Enco…

    ... 1 - Start=16384, Length= 6144, RAM page=16
    ... =32768, Length= 768, RAM page=16
    -->Sub ... =37548, Length= 7936, RAM page=16
    -->Sub ... =64895, Length= 2, RAM page=16
    -->Sub ...
    jp jp September 2013 Infoseek database
  • JSW2 - Game Loader DifferencesThere are three official releases of JSW2. I'm not counting the 'JSW2-128' version here as far as I'm aware this was not in any way 'official' as it …

    There are three official releases of JSW2. I'm not counting the 'JSW2-128' version here as far as I'm aware this was not in any way 'official' as it incorporates a built in cheat mode. Feedback on this point is appreciated. To quote the readme:

    spider spider September 2013 Sinclair Miscellaneous
  • ANN: Spud v0.225New version of Spud for anyone who's interested. Some new features. [code] v0.225 ADDED: Load & Save Binary Files. ADDED: Manually trigger NMI. A…

    ... : Interface 1 Emulation.
    ADDED: Multiface Emulation.
    ADDED: Fuller AY ... uSpeech Emulation.
    ADDED: Debugger. Page Selection when Viewing Memory.
    rich_chandler rich_chandler September 2013 Emulators
  • .z80 files load faster than .tap or .tzxHello again, I was wondering why the majority of games can be downloaded as .tap or .tzx but not as snapshots (.z80 or .sna). It takes about 5 minut…

    ... .tzx but not as snapshots (.z80 or .sna). It takes about ...
    Zerg Zerg October 2013 Emulators
  • Assembly - Loops bigger than 255Hi, It looks like it's a bit difficult to make loops with more than 255 cycles on Z80 machine code, since the 16-bit decrements (DEC) do not alter a…

    ... more than 255 cycles on Z80 machine code, since the 16 ... FOR example
    LD HL,16384 ; Beginning of the graphic memory ...
    Zerg Zerg October 2013 Development
  • ZX Spectrum Games Download PageHey there I don't know how many people knows about this anyway the page is well done and the guy taking care of it is very nice have a look ! [ur…

    Hey there

    I don't know how many people knows about this
    anyway the page is well done and the guy taking care of it is very nice

    have a look !
    [url]http://tarjan.uw.hu/zx_gamez_downloadz.htm[/url]
    gabriele amore gabriele amore October 2013 Announcements
  • A FAQ from a Z80 datasheet may reveal some up-to-now unknown behavioursA fellow member of the zonadepruebas.com forum has just mailed this PDF to me. [url]http://www.atc.us.es/~rodriguj/zilog_z80_faq.zip[/url] It's an e…

    ... CMOS chip?
    - Does the Z80 CMOS suffers from latch-up ... /> - What happens if a NMOS Z80 suffers a negative spike? (those ...
    mcleod_ideafix mcleod_ideafix October 2013 Hardware
  • POKEs on 128K "upper RAM"?I've been working lately with some 128k games, and I've got this question about RAM in games. I guess most games use RAM pages 5 and 2 to store the …

    ... , 6 or 7? I guess page 0 should be in the ... POKEr interfaces (Pokeador Autom?tico, Multiface III, anything that could POKE ...
    Zup Zup October 2013 Games
  • clang/llvm backend for Z80?Every so often I feel tempted to revisit assemblers/compilers etc. I had (for unrelated to Z80 reasons) the need to have a look at the clang compiler…

    ... had (for unrelated to Z80 reasons) the need to have ... anyone tried to make a Z80 backend for it"?
    ... to use it for Z80. I seem to remember ... the architectural limits of the Z80 (despite the GNU project ... putting out a pretty decent Z80 assembler). Now if z88dk ...
    Winston Winston October 2013 Development
  • Saving game progress on Multiface 128Hello, It's been a while since I used my multiface 128 and can't seem to remember how to load saved states/or screenshots. Currently playing through…

    ... while since I used my multiface 128 and can't seem ... each island I:
    -press multiface button
    -press 'save'
    thomas3120 thomas3120 November 2013 Hardware
  • Overclock the Z80 cpu to smooth out gameplay?Was thinking today of a Genesis/Megadrive mod I did a while back. It involved lifting the CLK leg on the motorola 68000 cpu (which in the MD, if I r…

    ... believe was handled by a Z80 cpu).

    Well, I ... + or +3e) by lifting the Z80's CLK pin and adding ...
    thomas3120 thomas3120 November 2013 Hardware
  • A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…

    ... a,$07
    call paginar ; page ROM2/RAM7 (+3DOS configuration)

    ; page BASIC ROM
    ld a ... />
    ; paging routine
    ; destination page is a
    paginar:
    db 0 ; screen$
    dw 16384
    dw 6912
    db ...
    Zup Zup December 2013 Development
  • Problem with Pasmo Assembler/Speccy emulator?I'm at the start of trying to learn Z80 assembly for the ZX Spectrum. I'm using Speccy 1.7 as my emulator, Pasmo as my assembler, and am following t…

    ... start of trying to learn Z80 assembly for the ZX Spectrum ... .com/2011/12/introduction-to-z80-assembly-part-i.html[/url ... the first program on this page in notepad, assembled the way ... the second program on this page, which should display some text ...
    bigbadbear9885 bigbadbear9885 December 2013 Development
  • My Spectrum +2, Multiface 128 and Plus D....Here's something that's always bothered me and had me wondering if anyone else experienced the same thing - Back in 1990 or so, when I finally manag…

    ... was to plug my old Multiface 128 in first, and then ...
    manonfire manonfire December 2013 Hardware
  • harvard architecture spectrum clone.I got my first +2 before christmas. I'd never given the 128k spectrums much thought, always been a 48k rubber key tradionalist. :smile: I've been me…

    ... .

    I know the z80 isn't designed like this ... amount of glue logic to page the memory in and out ... in. interupts would need to page this in too to store ... issue i think with the z80 but offset a little by ...
    Basher Basher January 2014 Hardware
  • Multiface 128Looking for a multiface 128. Reasonable price paid.

    Looking for a multiface 128. Reasonable price paid.
    Witbear Witbear January 2014 Wanted
  • Sinclair / z80 books (Zaks & Dale)As part of a continuing clear-out, I'm selling the following books, and will accept offers: The Sinclair Story - Rodney Dale (1st edition hardback, …

    ... condition)

    Programming the Z80 - Rodnay Zaks (softback in well ...
    bobs bobs January 2014 Sales
  • How to load a +3 dos file from disk to memory in z80Hi all again, Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination? Thanks.

    Hi all again,

    Are there any example z80 code listings (not BASIC) to load a +3 binary dos file from disk to a specific memory destination?

    Thanks.
    Speccy_James Speccy_James February 2014 Development
  • Clear command in z80Hi, How would I replicate what the basic clear command does in z80? Do I need to change the stack pointer as well as setting ramtop (23730)? If I se…

    ... basic clear command does in z80? Do I need to change ...
    Speccy_James Speccy_James February 2014 Development
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Latest Posts

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  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on April 22
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on April 22
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21

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