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<1234567…34>
  • sound sample rangesIf 0 is the midpoint for a range such as 127 to -128 then should the value -128 not be used for the sake of symmetry? Is this the way it is done wit…

    ... ... is also trivial. Just use arithmetic coding. ]

    [ This Message was ...
    Philip Kendall Philip Kendall October 2004 Development
  • sound sample rangesIf 0 is the midpoint for a range such as 127 to -128 then should the value -128 not be used for the sake of symmetry? Is this the way it is done wit…

    ... implementation I gave above does; arithmetic coding or other more efficient schemes ...
    Philip Kendall Philip Kendall October 2004 Development
  • New compression method: Exomizer 2After I finished working on optimizing aPLib's decoder, I was told that pucrunch did compress better, and while looking for info about pucrunch (it t…

    ... methods such as Huffman or arithmetic coding... but those are usually adaptive ...
    Metalbrain Metalbrain January 2012 Development
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... set pixels. Then use (a) arithmetic coding to record the lengths of ...
    joefish joefish January 2013 Development
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... set pixels. Then use (a) arithmetic coding to record the lengths of ... prediction algorithm. Using Elias Gamma Coding and a smart ("optimal") compressor ...
    Einar Saukas Einar Saukas January 2013 Development
  • Calling all coding munkeez...Having spent the last 8 years as a Windows application developer I thought I'd try my hand at a bit of Z80 speccy coding - something I missed out on …

    ... a bit of Z80 speccy coding - something I missed out on ...
    Choccy Choccy February 2002 Sinclair Miscellaneous
  • Three coding books for saleHi all, I've got three coding books for sale :- Spectrum Machine Code Made Easy Volume One For Beginners - James Walsh (Reasonable condition) Adva…

    ... />
    I've got three coding books for sale :-

    jp jp March 2004 Sales
  • Decimals, bcd etc in z80...Working bloody full-time on my Ragnar Revival game right now - just finished the basic sprite engine and before I go on coding the actual 3d engine (…

    ... and before I go on coding the actual 3d engine (moving ... on how to think before coding!

    So in short ... "Can you explain the basic arithmetic operations in BCD?"-section! Oh ...
    ekoman ekoman July 2004 Development
  • Pixel setting / general speccy codingi just started doing some cross-coding with the [url="http://www.bigfatpanda.fsnet.co.uk/z80.html"]Z80 SNA assembler[/url] and an emulator, and this …

    ... just started doing some cross-coding with the [url="http://www ... . i'm not used to coding on a 8-bit platform ... good info on speccy coding (in particular graphics coding), with code examples ...
    Lambchop Lambchop August 2004 Development
  • Jeff Minter - But who was YOUR first coding hero?Im still massively a fan of anything Jeff does, despite the fact he usually picks likely to die platforms. I remember in 88 when I was first discove…

    ... />
    He was my first coding hero, a legend to me ... /> So... who was your first coding hero?

    :)
    CKay CKay October 2004 Sinclair Miscellaneous
  • Getting started with asm Speccy codingSomeone on another forum I read has asked for good Speccy coding resources. I thought it would be great to link him to a simple tutorial about how to…

    ... has asked for good Speccy coding resources. I thought it would ... . Not something for the complete coding newbie though, I'm looking ...
    evilpaul evilpaul May 2009 Development
  • Homebrew Coding Geekend : Manchester UK : 26th JulyThis should be fun: [url]http://www.consolecombat.co.uk[/url] [url]http://www.consolecombat.co.uk/geekend.html[/url] Games, beer and coding! And q…

    This should be fun:

    [url]http://www.consolecombat.co.uk[/url]
    [url]http://www.consolecombat.co.uk/geekend.html[/url]

    Games, beer and coding!

    And quite possibly a lovely ruby too.

    -Charlie
    sirmorris sirmorris July 2009 Development
  • tricks to simplify codingWhen i started with programming in assembler i had very simple approach to do things. Just shifting bytes around, doing simple tests and so... Later …

    ... your own snippets to make coding easier.
    Fikee Fikee March 2010 Development
  • Homebrew Coding Weekend @ In Da 80s, July 16-17, ManchesterHi, This is a bit late notice, but we're trying to reach out to 8-bit homebrew developers who might be at a loose end this weekend! We're trying to…

    ... .cgeu.info/homebrewcoding.html]Homebrew Coding Weekend[/url]. As well as ...
    Arcadian Arcadian July 2011 Sinclair Miscellaneous
  • SpecBAS 0.730 Now available!Well, I felt I should release SpecBAS as it is right now - my new son has been born (this one survived! \o/ ) and when he comes home I'll have very l…

    ... little time to do any coding for a while...

    arithmetic operations are now "compounded" into ...
    Dunny Dunny February 2012 Sinclair Miscellaneous
  • Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…

    ... on the fundamentals of 128k coding.

    Chapter 24 of ...
    R-Tape R-Tape October 2012 Development
  • All that good coding, for nothing.Which games do you think has a wasted coding and programming excelences? For example, I think [B]PsychoHopper[/B] is a pity. It has good scroll ( th…

    ... you think has a wasted coding and programming excelences?

    judasEZT judasEZT February 2013 Games
  • BASin in new coding initiative from Vega teamhttp://everychildcancode.org/ >>Every Child Can Code is a new initiative to teach coding to children from age 7, or even younger. Our aim is to ma…

    http://everychildcancode.org/

    >>Every Child Can Code is a new initiative to teach coding to children from age 7, or even younger. Our aim is to make it easy and fun for you to learn to code
    stevebrowne stevebrowne September 2015 Sinclair Basic
  • Retromania: 40 years of the Z80 game coding contestAs usual, Retroacción is holding a coding contest for Retromañía (held in November), with cash prizes! This year we're celebrating the Z80 CPU's 40th…

    ... , Retroacción is holding a coding contest for Retromañía (held ... birthday with a Z80 game coding contest. *Any* Z80 based system ...
    Winston Winston October 2016 Development
  • New here? Looking for a solution to a problem with your coding? Read onThis observation is for the benefit of newcomers especially those learning to program. This site - World of Spectrum - is a resource of immense va…

    ... may be having with your coding progress.

    Its taken ... should have on books about coding and how computers work, most ...
    mik3d3nch mik3d3nch November 2016 Chit chat
  • Coding WorkflowHello All, I'm trying to work out an easy coding workflow. I'd like to be able to code in an modern text editor, compile the code to a .tap file and…

    ... to work out an easy coding workflow. I'd like to ...
    lozzabox lozzabox July 2017 Development
  • A way into coding? Yes it is not called programming any more - coding sounds a lot "posher" so I will go with that even though I am really just talking about "good ol…

    ... not called programming any more - coding sounds a lot "posher" so ...
    harriusherbartio harriusherbartio December 2018 Updates
  • Idea about improving EmulatorHi, I got a bright idea today how to improve such excellent emulators a bit more. Okay, disassemblers are available in nearly every one new released …

    ... it. It was a own coding language with ability to transfer ... of Basic and floating point arithmetic, just look at HiSoft Basic ... this project with their excellent coding techniques and ideas.
    Peter ...
    LCD LCD April 2001 Emulators
  • Emulation vs SpecApologies if this is an old thread, what does anyone think is the best - playing spectrum games through emulation or on a real speccy? I feel it's b…

    ... , so games that used fancy coding techniques would almost certainly crash ... simulate subtracting numbers in BCD arithmetic, and embedded it into the ...
    Digital Prawn Digital Prawn August 2007 Games
  • Move objectHi again, I am using paper colors to represent game objects. I have a "paddle" that is 4 pixels wide. I save its position as a 2 byte word in memory…

    ... access to all of those arithmetic/logic operations; checking whether you ... posts, I think he's coding in assembly :)

    The ...
    ooze48k ooze48k July 2011 Development
  • Graph Plothi! please, help with code: [PHP]For x=-100 To 100 For y=-100 To 100 If (x/2-25)*(x/2-25)+(y-50)*(y-50)<200 Or (x/2+25)*(x/2+25)+(y-50)*(y-50)<200 th…

    ... . The routine shows the correct coding structure to get it to ... writing it using simple register arithmetic but the negative numbers proved ...
    Battle Bunny Battle Bunny November 2012 Development
  • Testers for new z88dk clibA long (long, long, long) time ago a few people offered to help test the new clib in z88dk. Much time has passed since then and I won't hold people,…

    ... necessitated a bit of re-coding.

    Otherwise all is ... make use of fast integer arithmetic if that is selected.
    Alcoholics Anonymous Alcoholics Anonymous January 2015 Development
  • Help! I'm learning Machine Code...Having decided to take the plunge and learn to machine code a while ago, I have started in earnest using the much recommended 'Mastering Machine Code…

    ... a,(hl)
    (some logical, arithmetic or rotate left/right operation ... spend 30% of the time coding, and 70% of the time ... in a debugger, and made coding the average Z80 instruction painfully ...
    RetroTechie RetroTechie March 2016 Development
  • Mr.MicroId love some information of Manchester coding house, Mr. Micro Im sure they had a shop open in Swinton near me, in the early eighties and would like …

    Id love some information of Manchester coding house, Mr. Micro
    Im sure they had a shop open in Swinton near me, in the early eighties and would like to know more, any help?


    Lee
    PeeknPoke PeeknPoke January 2002 Games
  • INPUT ArchiveHowdy folks. I'd really appreciate some help in this. I'm planning on creating an online archive of the old coding mag INPUT (having recently acquir…

    ... online archive of the old coding mag INPUT (having recently acquired ...
    Fuzzbucket Fuzzbucket October 2001 Games
<1234567…34>

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  • Calling all coding munkeez...Having spent the last 8 years as a Windows application developer I thought I'd try my hand at a bit of Z80 speccy coding - something I missed out on …
  • need help in codingI have an address in HL, which I must save in memory buffer (for example at address buff1) with shift (for example taken from memory address shft1). …
  • Three coding books for saleHi all,<br /> <br /> I've got three coding books for sale :-<br /> <br /> Spectrum Machine Code Made Easy Volume One For Beginners - James Walsh (Rea…
  • Pixel setting / general speccy codingi just started doing some cross-coding with the [url="http://www.bigfatpanda.fsnet.co.uk/z80.html"]Z80 SNA assembler[/url] and an emulator, and this …
  • Jeff Minter - But who was YOUR first coding hero?Im still massively a fan of anything Jeff does, despite the fact he usually picks likely to die platforms.<br /> <br /> I remember in 88 when I was f…
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