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<1…14151617181920…34>
  • Spectrum 48K - upper memory MIAI have recently acquired a ZX Spectrum which, according to the sticker on the bottom, should be a 48K model. It's an Issue 3 board, with upper memory…

    ... 's an Issue 3 board, with upper memory chips (8xTI4532) and supporting ... does not see the extended memory. PRINT PEEK 23732 + PEEK 23733 ...
    unholy unholy February 2012 Hardware
  • New project: CargandoLeches. Ultraloads with ROMHi This project has started months ago, between decicoder, macleod and me. Uses the best modulation of k7zx (throwing shavings). But this ultraloa…

    ... lower memory (so it works by emulating the ROM code with RAM ... the english text are traslated with google traslate, except the home ... I will try to reply (with my bad English of course ...
    antoniovillena antoniovillena February 2012 Development
  • editing strings with INPUT LINEHere's the latest in my unpredictable series of utility routines. This one I needed for the SAGE game editor; it emulates INPUT LINE l$ but with the …

    ... LINE l$ but with the enhancement that the ... ld bc,(CH_ADD)
    push bc
    ld de ... inc hl
    push hl
    push bc
    call $ ... /> pop bc
    push bc
    inc bc ...
    Battle Bunny Battle Bunny February 2012 Sinclair Basic
  • 28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…

    ... ! Gasman independently came up with essentially the same approach ... by directly changing the PUSH instructions in memory. This would (a ... /> Obviously the PUSHes deal with two character columns each. One ... br /> nop
    PUSH HL ; Deal with the left-hand area ...
    AMW AMW April 2012 Development
  • Action figures with flying disc thingieIt's another trip down memory lane to try and remember something I played with as a kiddie. It was a bunch of action figures. It must have been mid-…

    ... down memory lane to try and remember something I played with as ... any kind of cartoon connected with them and I don't ...
    Maroc's Astral Projection Maroc's Astral Projection April 2012 Chit chat
  • Difficult to find upper RAM fault.I've recently repaired an issue 3B 48K Spectrum that had a tricky to diagnose upper RAM fault, so I thought I'd post a report of what I found here. …

    ... produced a mainly black screen with various coloured squares and ( ... First, the section named RAM-FILL loops over all possible RAM ... starts again, testing the next memory location. Otherwise, the loop ... manage to capture the RAM-FILL routine passing from lower ...
    Zorn Zorn April 2012 Hardware
  • Inefficient code in ROM, from ram-check to RAM-DONEHere is the inefficient code: [CODE] ;; ram-check L11DA: LD H,D ; Transfer the top value to the HL register LD L,E …

    ... />
    ;; RAM-FILL
    L11DC: LD (HL),$02 ; Load memory with $02 - red ... />
    ;; RAM-FILL
    L11DA: LD (HL),$01 ; Load memory with $01 - blue ...
    antoniovillena antoniovillena April 2012 Development
  • What if there was no memory or space limitation?What if there was no memory or space limitation? We've had topics about the limitations of the Speccy's hardware, topics where we discussed how good …

    ... such a low amount of memory, how some programmers showed skill ... had an extreme amount of memory, paginated, at the disposal ... have a virtual amount of "memory" at our disposal. How ... adventures? Point-and-click adventures with digitised speech?

    ...
    zxbruno zxbruno May 2012 Sinclair Miscellaneous
  • What's wrong with this code ?OK, working my way through Jonathan Cauldwells 'How To' tome and I can't get the following to run in either spin or basin. ( iused the assembler in b…

    ... ; quick way to load accumulator with zero.
    call 8859 ; ... 15*256 ; load hl pair with starting coords.
    ld (plx ... ; outermost bit = key 1.
    push af ; remember the value.
    Saboteur Saboteur May 2012 Development
  • Full project AVR ZX Spectrum with all sourcesHello to all. Heare i put all my project AVR ZX Spectrum with cources, written under AVRStudio4.1 [url]http://dl.dropbox.com/u/12408899/Aspect128%20f…

    ... my project AVR ZX Spectrum with cources, written under AVRStudio4.1 ... and may be suppurting SD memory card. It will be great ...
    Vasil Vasil June 2012 Hardware
  • Oooyaah! This came from nowhere......There's a new console in the works, and it's already massively popular, despite not existing... [url]http://www.kickstarter.com/projects/ouya/ouya-a…

    ... on Kickstarter. To refresh your memory, the $99 system (which was ... grants you a single controller with a touch sensor. Most notably ... open hardware and software with a push for free-to-play content ... in-depth chat about Ouya with Behar himself here before you ...
    deadpan666 deadpan666 July 2012 Chit chat
  • Developing apps for ZX Spectrum with SDCCDue to troubles with makebin utility which always starts coversion at memory address 0x0000 and can only produce binaries < 32KB, it can't be used to…

    ... troubles with makebin utility which always starts coversion at memory address 0x0000 ... to create ZX Spectrum programs with SDCC. I present [B]makezxbin ... ]

    4) makezxbin (compile with gcc -o makezxbin makezxbin.c ...
    tstih tstih July 2012 Development
  • Interview with Steve Wetherill (Odin)Hi you all!!! Here is the interview done to STEVE WETHERILL (Nodes of Yesod, Robin of The Wood, Arc of Yesod, Heartland... ?Odin!) and published at […

    ... Odin, they were using Spectrums with Microdrives for development, which was ... Nodes, it definitely shows. With Robin and Heartland, development was ... the screens would fit in memory, and that the update ... because the working procedure with 16 bits computer or ...
    jmvbok jmvbok August 2012 Sinclair Miscellaneous
  • Your favourite Spectrum [whatever] beginning with a numberI thought I'd resurrect the fairly popular 'Best Spectrum game beginning with [whatever letter], so here goes. You know the drill, each of your answe…

    ... popular 'Best Spectrum game beginning with [whatever letter], so here goes ... game/advert/whatever that begins with the letter in the thread ... demo I've seen beginning with a number).

    ... a game title: 128K of memory.



    Best ...
    ewgf ewgf August 2012 Games
  • Custom Spectrum ROMS with modified system fonts?Some of the more memory efficient adventures used the default Spectrum font in order to save bytes for the adventure itself. Level 9 in particular ju…

    Some of the more memory efficient adventures used the default ... are any Sinclair ROM files with modified fonts that I can ... try out with emulators in order to give ...
    takapa takapa August 2012 Sinclair Miscellaneous
  • Some more PC questions1. Since we ended up discussing Linux in another thread, it made me wonder is Linux really, objectively faster than Windows? I mean, can you run, say…

    ... Linux when it comes to memory? It has to be more ... than Windows 7 (which struggles with 1GB, and personally I wouldn ... use it with less than 4GB), but to be fair, memory is ... the answer to this could fill pages of text and barely ...
    ewgf ewgf August 2012 Chit chat
  • How much memory on sprites, maps etc.I've been tinkering with shifting & pre-shifting sprites recently, but as I haven't had that much experience with Z80 assembly I sometimes find it ha…

    I've been tinkering with shifting & pre-shifting sprites ... 't had that much experience with Z80 assembly I sometimes find ... too much" as far as memory allocation is concerned.

    with small sprites, multi-screen, multi ...
    Morkin Morkin September 2012 Development
  • BeepFX ProblemHi All, I'm currently trying to integrate the BeepFX engine in my 100% Assembler Game and it plays the sound fine, but then plays the sound again, a…

    ... to be high up in memory?? (it's currently at ... 0
    SFXRTl0: push bc
    push iy
    pop ... d
    SFXRNl0: push bc
    push iy
    pop ...
    PS: Also tried with slightly different code found on ...
    Shando Shando September 2012 Development
  • Spectranet hard disk moduleI figure it's about time for a public announcement now that people are starting to get their hands on spectranets. Some of you will be aware that fo…

    ... commented skeleton driver with all the calls paging the memory correctly etc ... but simply returning so that people can "fill ... 't[/I] do is work with IBM partitioned disks. It is ... able to share a disk with an IBM system just like ...
    guesser guesser September 2012 Announcements
  • Help A Dim Man With UbuntuHeeeeeeelllllppppppp!!!!!!!!!!! I have XBMCbuntu installed on my media PC which normally works great. I logged out of XBMC into the desktop and th…

    ... system was very low on memory so uninstalled ZSNES via CTRL ... then had a 60GB partition with XBMCBuntu and a 2GB swap ... showed as a 64GB drive with 8.2GB used and about ...
    dave_beer_uk dave_beer_uk October 2012 Chit chat
  • Key redefinition addresses for games made with AGDI am attempting to implement a system to make keys redefinable on the AGD-authored game I am working on. I tried to use [URL="http://www.worldofspect…

    ... no avail. Even modifying the memory addresses in lines 20 and ... in order to match the memory space used by AGD 3 ... trace the addresses to POKE with the new key values in ...
    Alessandro Grussu Alessandro Grussu December 2012 Development
  • Interview with Clive Townsend (Saboteur)Here you have at [URL="http://www.elmundodelspectrum.com"]www.elmundodelspectrum.com[/URL] this exclusive interview with Clive Townsend. Don?t forget…

    ... com[/URL] this exclusive interview with Clive Townsend. Don?t ... Sinclair had been very unimaginative with their computer names ? the ... actual Spectrum. So in memory I had the source code ... faced with the same old problems of speed, graphical quality, and memory ...
    jmvbok jmvbok December 2012 Sinclair Miscellaneous
  • Importing binary data to paged memoryI really could use some hint :) Many emulator have a feature - open/ import binary. I select the file, give starting adress and voila ! But most of…

    ... /> But most of them work with main memory only. It's not ... :( I did everything, then checked memory in debugger and nothing changed ...
    Ralf Ralf March 2013 Emulators
  • X128 and EMS memoryI installed x128 emulator (latest v0.94 build) on my old notebook Intel P1 266MHz MMX, but I have one problem. It seems that the x128 is very sensiti…

    ... is very sensitive to EMS memory managers (EMM386, Jemm386) and hangs ... (NOEMS or AUTO switch with EMM386, Unload command with Jemm386) but x128 ... x128 starts to work, together with EMS memory installed?
    Pegaz Pegaz April 2013 Emulators
  • Help with my +3Hi fellow spectrum users. I have been lurking round the forums for several months now, but never posted until now. Anyway you guys should probably …

    ... /> I have a retro corner with a A1200 and a C64 ... say I fell in love with the little thing. I can ... websites.

    Problem is with my +3. I can't ... to get worse when I push my actual Speccy nearer to ...
    gazj82 gazj82 May 2013 Hardware
  • SpecBAS 0.775 released!Hi all - me again :) SpecBAS has been updated again, and a whole load of new stuff has been added. Not many bugs fixed (none reported, and I only fo…

    ... RESTORE and RUN when used with a numeric parameter
    CASE ... in and played from a memory bank
    WINDOW MERGE id ... ,3,4,5 to automatically fill the array
    BASE$(value ... check your value (a above) with a range, using WHEN IN ...
    Dunny Dunny May 2013 Sinclair Miscellaneous
  • 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…

    ... of PUSH instruction. PUSH can be used as very quick memory filler ... So game simply fills screen memory by preshifted patterns. However there ... registers.
    Emulation of PUSH instruction can look like
    PUSH.
    It takes 13.5 T to fill one ...
    catmeows catmeows June 2013 Development
  • DIVIDE PLUS - new memory mode DIVIDE128Divide PLUS contain 512kB sram + 512kB flash eprom. Memory paging in this device is enable on two different ports : 1) port #E3 is compatible with o…

    ... + 512kB flash eprom.
    Memory paging in this device is ... 1) port #E3 is compatible with original DIVIDE interface, select one ... make new installation TAP file with FATWARE 012a. After load ... interface is comaptible with V6Z80P DIVIDE but with 128kB or 512kB ...
    velesoft velesoft June 2013 Hardware
  • Contended Memory woes...Hello All, An iccle problem I have and was hoping one of you fine WoSers could bail me out again... :) I've noticed that my emulator is running sli…

    ... to be an issue with the contended memory not working as it ... ]

    I implemented contended memory simplistically but I'm wondering ...
    Korinel Korinel June 2013 Emulators
  • Trouble with rainbow effect push/popI'm having a bit of bother getting my rainbow graphics to behave themselves. Basically I want a rainbow effect to last for say 4 seconds before movi…

    ... problem is if I omit push and pop bc the thing ...
    in a,(254)
    ;push bc
    call flash
    daveysludge daveysludge June 2013 Development
<1…14151617181920…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • European Software Titles with an English version
    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21
  • Celebrity deaths...
    mel the bell on April 20

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push 4.9K 12.7K

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