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<1…16171819202122…34>
  • How does interrupts work?I am a little confused regarding the interrupts on the Spectrum. If I have some hundred bytes of machine code started with, say, [B]RANDOMIZE USR 300…

    ... have some hundred bytes of machine code started with, say, [B]RANDOMIZE ... 30000-30100, will any other code from the ROM also be ... RST instructions in my own code.)

    I suspect that ... with routines in the ROM code?
    Rickard Rickard May 2007 Development
  • Name this Microcomputer Book!!!Hoping somebody can pull the name of this book out of the hat! I've tried google searches, wild-card searches, eBay searches and loads more, and no …

    ... difference in file size between machine code and basic (and presumably to ...
    Shuggy Shuggy June 2007 Chit chat
  • Lucky or whatYou may have heard of freecycle. [url]www.freecycle.co.uk[/url] Some one the other night offered free Spectrum gear or it will go to the tip. I got…

    ...
    Plus3 manual
    Spectrum Machine Code made easy
    The Complete ... Sinclair ZX Spectrum
    Variouse Machine Code cassette tapes.

    If ...
    swift240 swift240 July 2007 Hardware
  • Currah MicroSpeech manualI'm trying to obtain Currah MicroSpeech manual or link to a page describing it. I need it's programming interface for machine code programming. An…

    I'm trying to obtain Currah MicroSpeech manual or link to a page describing it. I need it's programming interface for machine code programming.
    Any suggestions?
    ZX64 ZX64 July 2007 Hardware
  • Using a multiface to exit to BasicBack in the days I was always fascinated with the idea of getting access to BASIC listings inside a program or game. I was able to work a way around …

    ... , but since I never learned machine code, I didn't had much ... a BASIC listing inside the code, especially if the whole ram ... (inside the game of app code, not the loader) and that ...
    zxbruno zxbruno August 2007 Sinclair Basic
  • Emulator with remote keyboard input?(I've searched the forums before starting this thread) We've heard about the PC version of Jet Set Willy (which some of us were unable to run). What…

    ... how to do something in machine code. It could also to show ... any change to the game code. The buddy list configuration could ... users teaching others how to code, Daren showing others how to ...
    zxbruno zxbruno August 2007 Games
  • Amaurote & Zub -- missing TZXs?With reference to [url=http://www.worldofspectrum.org/forums/showpost.php?p=209176&postcount=11]this post[/url], the TZX of Amaurote at WoS is of the…

    ... 't check to see which machine it's running on, displays ... . It does, however, have some machine code embedded in the BASIC loader ...
    StuBruise StuBruise August 2007 MIA/STP/SDP
  • Mnemonics UppercaseMy question is more PC oriented than Spectrum, but maybe somebody knows a simple solution. I have some Spectrum machine code in .asm files. I wrote …

    ... />
    I have some Spectrum machine code in .asm files. I wrote ... I want to compile this code under another assembler which requires ...
    Ralf Ralf September 2007 Development
  • Port Chuzzle Deluxe for Windows to the ZX Spectrum?Hi all, I've been looking around for a Commodore 64 or ZX Spectrum game that's very similar to a Windows game called "Chuzzle Deluxe", but haven't b…

    ... haven't done any Spectrum machine code programming - only BASIC programming, but ...
    timsquirrel timsquirrel September 2007 Development
  • Sam Revival issue 19 out now! [Sam CoupIssue 19 of Sam Revival is now out! Let's start off with what's on the coverdisk: Conquest. Written by Peter King in 1997 this originally had a lim…

    ... "Programming the Z80", a new machine code column from the talents of ... , memory and a couple of machine code instructions with a very small ... to date 65C02 cpu emulator code and other enhancements including support ...
    Quazar Quazar September 2007 Announcements
  • Can anybody recommend a good assembler?I've just downloaded Toni Baker's "Mastering Machine Code on Your ZX Spectrum" from the books archive and I'm hunting for a good speccy z80 compiler.…

    ... downloaded Toni Baker's "Mastering Machine Code on Your ZX Spectrum" from ...
    BigBadMick BigBadMick October 2007 Development
  • IM instruction - danger Will Robinson!!! :)Here's something I've wondered about for years: On page 102 of "Mastering Machine Code on your Zx Spectrum" by Toni Baker, there's an instruction li…

    ... /> On page 102 of "Mastering Machine Code on your Zx Spectrum" by ...
    BigBadMick BigBadMick October 2007 Development
  • Lots of original release Speccy/C64 gamesLOADS of Spectrum (and C64) games are going on EBAY tonight - hopefully I can raise a bit of much needed cash! Nearly all of the games are the origi…

    ... Box)
    Sinclair ZX Spectrum - MACHINE CODE EDITOR/ASSEMBLER
    Sinclair ZX ...
    chaosmongers chaosmongers October 2007 Sales
  • SPIN's breakpoints - an overviewAs quite a few people have been asking how to set breakpoints on memory write etc. in SPIN, here's a description of the way the breakpoints work. Get…

    ... 23296:
    [code]
    UNTIL 23296
    [/code]
    This would ... use VALUE, like this:
    [code]
    UNTIL (RADDR=23296) ... way of reading this in machine code is the "IN A, ( ... , as demonstrated next:
    [code]
    UNTIL 49152 IF (PC ...
    Marko Marko November 2007 Development
  • How does the Z80 communicate with hardware?How does the Spectrum (or Z80) interact with other hardware devices? I think devices can communicate with the CPU through interrupts, but how can the…

    ... ? Does it use some special machine code instructions to send requests, or ...
    Rickard Rickard November 2007 Development
  • Games on a D80 based systemHi everybody..... I need to satiate my urge to play Knight Lore. Never did finish that game. To do so I need a good way of getting it onto at least…

    ... to program the D80 from machine code? The PDF looks great, as ...
    Spirantho Spirantho November 2007 Sinclair Miscellaneous
  • How could you hear if loading BASIC or MC?When loading a Spectrum program from tape you could usually hear from the sound if it is a BASIC or is some machine code program *. My question is, w…

    ... a BASIC or is some machine code program *. My question is, why ... about the same as a machine code routine?

    * As to ... the sounds, I think loading machine code sounds hard and tight, and ...
    Rickard Rickard November 2007 Development
  • How does the Z80 work internaly?How does the Z80 work internaly, i.e. how does it actually execute a machine code instruction? When it fetches a byte from the memory and finds, for…

    ... does it actually execute a machine code instruction?

    When it ...
    Rickard Rickard November 2007 Development
  • 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…

    ... we tracked down the BASIC code but the results aren't ... reflect the speed of the machine running machine code but it would be ...
    JamesD JamesD December 2007 Sinclair Basic
  • DEF FN DirectivesI am looking at using some machine code functions from the DK Graphics Pack. They are machine code but they are called via Basic with the function de…

    ... am looking at using some machine code functions from the DK Graphics ... Pack. They are machine code but they are called via ... do I call these from machine code? Do the bytes following the ...
    carlinski carlinski December 2007 Development
  • How to add speech to a program?Is it possible to add speech to a machine code program? And with possible I mean with relative ease. Hardware could be 128k. Is there some utility …

    Is it possible to add speech to a machine code program? And with possible I mean with relative ease. Hardware could be 128k.

    Is there some utility around to record something and then be able to play it from inside a program?
    Rickard Rickard January 2008 Development
  • messianic lightAnybody read the bizarre posts by this guy on CSS? He's just bought a ZX81 machine code book on eBay and now wants to write a Java Runtime Environmen…

    Anybody read the bizarre posts by this guy on CSS?
    He's just bought a ZX81 machine code book on eBay and now wants to write a Java Runtime Environment on the ZX81 :-o
    rich_chandler rich_chandler February 2008 Sinclair Miscellaneous
  • Elite Commander Editors / CreatorsI've noticed 3 of these in the WOS database. One is MIA and the other two have bugs I've discovered and don't edit everything. So, I was going to ma…

    ... still can't understand much machine code.

    Some of the ... out so far...

    [code]0-9 - Commander name (followed ... /> All this loads into 53332 :)[/code]

    The numbers indicate ...
    mulder mulder March 2008 Games
  • Quick q. on MC vs. BASIC (boring question)No matter how long or tedious the programming/testing may be ... Is Machine Code [B]ALWAYS[/B] faster than BASIC?

    No matter how long or tedious the programming/testing may be ... Is Machine Code [B]ALWAYS[/B] faster than BASIC?
    ZnorXman ZnorXman March 2008 Sinclair Basic
  • Ripping a fontIs it possible to rip a font from a machine code game using Spin?

    Is it possible to rip a font from a machine code game using Spin?
    chop983 chop983 April 2008 Emulators
  • A classic thread sub-forum?You know how some sites have a "classic" thread sub-forum? Where any notable threads are moved to, after a certain period of time when no-one has pos…

    ... />


    Starting on machine code - BASIC first?:

    [URL ...
    ewgf ewgf June 2008 Sinclair Miscellaneous
  • Unprotecting games without knowning m.c.DivIDE or MB02 users don't need unprotected games, but those who still use the Microdrive, Wafadrive, Timex FDD, +3, Plus D, Disciple or use the new …

    ... lives POKE on a real machine without the use of interfaces ... BASIC permanently and starts running machine code, does it matter where the ...
    zxbruno zxbruno June 2008 Sinclair Miscellaneous
  • Games sale clean-out...Having a clean-out, and are selling the titles below... PM me if you're interested in any of them. Unsure of any particular prices - make me an off…

    ... /> White Lightening
    ZX Spectrum Machine-code Assembler


    Magazine ...
    bobs bobs July 2008 Sales
  • Machines and game starter bundles for saleI am just in the process of compiling a new stock list for the Preservation team shop and I am going to add a lot of my spare hardware kit and some o…

    ... Pack" with a fully tested machine, power supply, cables, manuals, ... games and depending on the machine, a joystick interface, Blank ... to bundle them with a machine.

    Again fully ...

    Practical Spectrum Machine Code
    Games to play on ...
    ADJB ADJB September 2008 Sales
  • Help using M3 ramFrom the Multiface 3 manual. [quote]6.0 The Use of Extra 8K RAM --------------------------- The MULTIFACE's 8K RAM extension can be accessed and us…

    ... , requires a good knowledge of machine code plus further
    information on ...
    FrankT FrankT September 2008 Development
<1…16171819202122…34>

Latest Posts

  • Minor British Sports that did become games on the ZX Spectrum
    dmsmith on April 22
  • I bought an accoustic guitar. How do you play it?
    Maroc's Other Projection on April 22
  • Goodbye Z80
    moggy on April 22
  • Happy 40th Birthday to the Amstrad CPC464!
    AndyC on April 22
  • Another Birthday! The Game Boy Is 35!
    dm_boozefreek on April 22
  • I am currently watching.....
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  • European Software Titles with an English version
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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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