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Search Again :: Adv Search 1000 results in 0.024s
<1234567…34>
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... ULAplus screens with LOAD "" CODE 16384: RESET.
    [*]Lower ... ULAplus screens with SAVE "screen" 16384, 6976
    [*]SCREEN$() ... .
    [*]Simple code page support in hi-res mode ... and divMMC.
    [*]Z80 LDIR block copy: PUT 49152, 16384, 6912.[/list]
    chev chev October 2013 Sinclair Basic
  • When could Speccy have been born?Just a pondering excercise for those that know more about the different types of chips in the Spectrum than I. Whilst browsing the z80 page on wiki …

    ... than I. Whilst browsing the z80 page on wiki last night I ... away to see that the z80 started it`s life in ...
    CKay CKay December 2006 Sinclair Miscellaneous
  • Cross compilersAre there any z80 cross compilers out there which will produce spectrum files ready for use? That is to say something which I could copy a load of te…

    ... being meantioned on the official z80 page so I think using this ... might be able to develope z80 code for the Spectrum using ...
    cyborg cyborg December 2001 Sinclair Miscellaneous
  • simple z80 rom for test my emulatorHi there! Does anyone here have a very simple rom(in Z80 format) for testing my emulator. I need a very simple one that implements few opcodes and po…

    ... have them in .sna or .z80 format.

    Before ... any further, though:

    .z80 snapshots often use RLE compression ... right". You do have .z80 compressed block decoding routines already, yes?
    Z80 core loose on it.
    Dunny Dunny April 2004 Emulators
  • .z80 to .tap ?Some days ago I discovered that game I have dreamed for so long is actually existing, and it is Bobby Yazz Show, and of course I would like to play i…

    ... : The bugs are in the z80 page decompressor - it sometimes corrupts memory ...
    Tom-Cat Tom-Cat October 2006 Games
  • Sam coup? - some questionsHi everyone. Got myself a sam coup&#233; without any kind of cables. I was a bit suspicious about it's working condition. Hooked it to a pc at psu a…

    ... have:

    ROM0 in Page A (0-16383)
    LMPR ... , so page 0 is mapped in Page B (16384-32767)
    [Page 0 would ... is mapped to Page C (32768-49151), and page 2 is mapped ... to Page D (49152-65535 ...
    Quazar Quazar November 2006 Hardware
  • Making your own joystick interfaceJust spied the diagram for the kempston joystick interface in the docs section. For someone who has only made up cables, what is involved in constru…

    ... />
    I notice on your Z80 page you have a 40x4 LCD ...
    Jonathan Harston Jonathan Harston June 2007 Hardware
  • Making your own joystick interfaceJust spied the diagram for the kempston joystick interface in the docs section. For someone who has only made up cables, what is involved in constru…

    ... ]
    I notice on your Z80 page you have a 40x4 LCD ...
    Winston Winston June 2007 Hardware
  • Super Hang On (Speedlock deprotector program needed)Hello all, I been looking into finding a way of decrypting the speedlock on Super Hang On. I want to create a deprotected tap version of the game, w…

    ... whole memory in one headerless block (16384-65535) and run the game ...
    FrankT FrankT March 2010 Games
  • 48k Timing Tests...Here's v1 of the timing tests for the 48k Spectrum, with a little background [IMG]http://www.zxspectrum4.net/images/timing_test_v1.jpg[/IMG] [URL="…

    ... ="http://scratchpad.wikia.com/wiki/Z80"]z80 page[/URL] on the tech wiki ...
    Woody Woody April 2010 Development
  • 48k Timing Tests...Here's v1 of the timing tests for the 48k Spectrum, with a little background [IMG]http://www.zxspectrum4.net/images/timing_test_v1.jpg[/IMG] [URL="…

    [QUOTE=Woody;437457]Its home is the [URL="http://scratchpad.wikia.com/wiki/Z80"]z80 page[/URL] on the tech wiki site :)

    Obviously you've already got it now![/QUOTE]

    Yup. Thanks Woody :smile:
    Madonna Mk 2 Madonna Mk 2 April 2010 Development
  • Correct flag response to BIT n,(HL) etc.When running the test program suggested by Arjun (thanks again), all intructions are passing the flag tests except the BIT n,(HL), BIT n,(IX+dis) and…

    ... file. According to the Wikia Z80 page:

    "Note that the ...
    Madonna Mk 2 Madonna Mk 2 May 2010 Emulators
  • Zero (aka Ziggy) 0.4.5The 0.4.5 preview build is available for er... preview. There are still some bugs and glitches to iron out but I have taken various suggestions on bo…

    ... is doing. They save a block 16384 bytes long and expect to ... see 16384 bytes saved as that is ... /> What if I save a block with a custom routine that ... bytes count displayed then show 16384 bytes?
    FrankT FrankT October 2010 Emulators
  • Zero (aka Ziggy) 0.4.5The 0.4.5 preview build is available for er... preview. There are still some bugs and glitches to iron out but I have taken various suggestions on bo…

    ... is doing. They save a block 16384 bytes long and expect to ... see 16384 bytes saved as that is ...
    Philip Kendall Philip Kendall October 2010 Emulators
  • The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …

    ... reasons it contained a Zilog Z80.

    I ...
    [code]
    Z80: ld hl,16384 ; Load with...

    x86: mov ax,16384 ; Move with...

    ... 68K: move.w #16384,d0 ; Move to...
    [/ ... d0
    or.w #16384,d0
    move.w ...
    ASM ASM October 2010 Sinclair Miscellaneous
  • Fuse : tape loading errorJust installed fuse on Puppy Linux. What joy. Trying to load a .tzx file - Manic Miner - what else :) Getting: Fuse Error: libspectrum: libspect…

    ... ;527946]Actually, for the Z80 format, that's possibly a ... bug in Fuse/libspectrum. 'Z80' apparently saves the +D' ... D ROM and RAM in Z80 page 1 as long as we ... stored in the same Z80 file page and I guess I ... +D ROM into every Z80 snapshot made with the interface ...
    Fred Fred April 2011 Emulators
  • machine code loadercan someone have a look at this loader and break down what its actually doing and also how i can stop it from executing the 2 loads of headerless blo…

    ... randomize usr 16384

    1st block - screen$
    2nd block - 24e3, ... a separate file)
    3rd block - 16384,280? (I already saved the ... />
    The code at 16384 would set the stack or ... because of the big code block. ;)
    @Zetr0: This game ...
    zxbruno zxbruno August 2011 Sinclair Miscellaneous
  • MCODE problem...Hi Folks, Trying to write a simple machine code program to hatch the screen. So far I have the following but even this is not working - it does not…

    ... based around one of the Z80's block move commands LDIR. All ... is done internally by the Z80 so it's a lot ...
    Turkwel Turkwel October 2011 Development
  • Psion 5 Spectrum Emulator probsI picked up a second hand Psion 5MX as I have gotten the text adventuring bug once more. I installed the Sinclair Spectrum Emulator version 4.0 by Pa…

    ... . For example when loading a z80 of ghouls and ghosts in ... I get the error message 'Z80 page out of range. Try running ... load Game Over z80 I get a message 'Z80 v300. SAM RAM ...
    yadster yadster December 2012 Emulators
  • Psion 5 Spectrum Emulator probsI picked up a second hand Psion 5MX as I have gotten the text adventuring bug once more. I installed the Sinclair Spectrum Emulator version 4.0 by Pa…

    ... . For example when loading a z80 of ghouls and ghosts in ... I get the error message 'Z80 page out of range. Try running ... load Game Over z80 I get a message 'Z80 v300. SAM RAM ...
    snigfarp snigfarp December 2012 Emulators
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... char based sprites using the Page flip method:


    A Z80 snapshot can be found here ... co.uk/downloads/bb2.z80"]http://www.peargames.co ... .uk/downloads/bb2.z80[/url]

    ... .WORD
    #DEFINE DEFS .BLOCK
    #DEFINE EQU .EQU< ...
    robpearmain robpearmain September 2004 Development
  • SjASMPlus cross compiler of Z80 assembly languageHi! I want to present you cross-compiler of Z80 assembly language: [B]SjASMPlus[/B]. [SIZE="4"]Features:[/SIZE] [LIST] [*]Z80/R800 documented and un…

    ... present you cross-compiler of Z80 assembly language: [B] ... ]
    [LIST]
    [*]Z80/R800 documented and undocumented opcodes ... file inclusion
    [*]Multiline block comments
    [*]Multi file ...
    [size=4]Project page at SourceForge:[/size]
    [size ...
    aprisobal aprisobal September 2006 Development
  • Spin problems/issuesI am running Spin 0.666 and have noticed a few issues (some are bugs, some might be just me). I am using Vista sp1 (yeah I know!), and I've seen Dunn…

    ... Memory Block. Apart from the fact that the RAM page ... [I]start address [/I]= 16384, [I]length[/I]=6000, you ... and select "run". The Z80 will now freeze at the ... . If you interrupt the Z80 at a random point, ... Spin1 header and main code block. Right click, select ...
    Jimmy Jimmy April 2008 Emulators
  • .Z80 format question for 128KHello!!! I am working on my ZX Life Shield utility to make it compatible with .Z80 snapshots. I have sucessfully coded .Z80 48K snapshots, but for …

    ... to make it compatible with .Z80 snapshots.

    I ... have sucessfully coded .Z80 48K snapshots, but for 128K ... In 128K mode, which 16384 bytes page belongs to the addresses:
    16384
    32768
    49152 ...
    marcoagpinto marcoagpinto June 2008 Emulators
  • Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…

    ... ZX Spin. Select Tools -> Z80 Assembler.
    To run our ... -hand side of the assembler page to make your code more ... the Display file, from addresses 16384 to 22527, which stores a ... , which affects an 8x8 pixel block per byte, in logical order ...
    bigjon bigjon November 2009 Development
  • Z80 internal compressionThis isn't exactly a ZX Spectrum problem, but since WOS probably has some of the best Z80 coders in the world, I thought I might ask anyway. For my …

    ... has some of the best Z80 coders in the world, I ... last byte of the data block is always $ff.
    - Minimum ... , is not aligned to a page limit).
    - Hard-coded addressing ...
    utz utz May 2013 Development
  • Restoring AY registersAfter doing (not still finished) the sna to tap converter, I'm going to try to do the same for 128k snapshots. I've got threee ideas about what to do…

    ... only found them in Z80 snapshots (I guess SZX ... part of RAM page 5, page 2 and page 0.
    ... 7.
    5.- Restore page register $7ffd.[b](*)[/b] ... placed at 16384 loads a headerless block starting at 16484 ... easily modified to load our block.

    Some ...
    Zup Zup April 2018 Development
  • Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…

    ... ZX Spin. Select Tools -> Z80 Assembler.
    To run our ... -hand side of the assembler page to make your code more ... the Display file, from addresses 16384 to 22527, which stores a ... , which affects an 8x8 pixel block per byte, in logical order ...
    buzzy buzzy September 2012 Development
  • New Utility to Transfer Z80 Snapshot to +3 DiskSince getting a Gotek for my +3 it has been my go to machine. The biggest downside however is the lack of older games on disk format with pretty much…

    ... 3) Load compressed page 0 into page/bank 2 and ... will scan for continuous block of zeros
    ...
    4 : @16384-32751 user specified memory location ... />
    Z80onDSK snapshot1.z80 snapshot2.z80 compilation1
    where "compilation1 ...
    TomD TomD May 2019 Development
<1234567…34>

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