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<1…17181920212223…34>
  • Anybody fancy coding this?blah de blah de blah Please ignore, poting error.

    ... into three different real-world memory failures with 4116 RAM.
    memory, you aren't actually doing that - for example, in the ... I have in my posession three failed 4116 memory chips from two ... /reset check on each bit in memory).

    The second ...
    Winston Winston April 2007 Development
  • Anybody know what program can:Does anybody know of a PC program (or a "set") that can scan through a BASIC program, and replace "D*, D1 or D2" with two spaces. Then, save that sc…

    ... similar to saving to tape in that you get two copies ... , 1 that is the bytes in memory that are actually interpreted when ... files if they are overwritten in the disc images, but I ...
    dekh dekh April 2007 Development
  • New Game - JustinA new isometric 3D Game for ZX Spectrum, Justin: [url]http://cpce.emuunlim.com/justin.tap.zip[/url] It can be played in spanish and english languaj…

    ... into a magazine-style type-in hack (the CALLs mean ... require shifting it about in memory and if possible I' ... LDIR it).

    In the meantime, if anyone wants ... then here it is in all its badly-coded ... code
    keypress:
    IN A,($FE) ;get keyboard
    StuBruise StuBruise April 2007 Games
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... TV signal from two places in memory, from a pixel area and ... area.
    with the "strange" memory layout ULA can be more ... circuit than with linear video memory.
    no software reasons ...
    Fikee Fikee April 2007 Development
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... frame buffer a 'raster' image in memory (laid out like a bitmap ... expense of more complex logic in its ULA to send the ...
    Winston Winston April 2007 Development
  • How did people write large assembler programs on real Spectrums?I have been wondering how people did their development back on real Spectrums. If you should write a large program, there would first be an assembler…

    ... first be an assembler program in memory, then the assembly code written ... code) and then some memory left for the produced machine ... space and compile time. The memory footprint of the programs was ... of Tomas Rylek), cleared entire memory from 23296 to 65535, ...
    Patrik Rak Patrik Rak April 2007 Development
  • New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…

    ... load and encrypting the data in memory before saving, rather than saving ...
    ghbearman ghbearman May 2007 Development
  • New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…

    [QUOTE=StuBruise;187153]I'm in pretty much the same place ( ... allows the monitor to stay in memory. I could simply keep the ...
    Patrik Rak Patrik Rak May 2007 Development
  • New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…

    ... all made sense at 2 in the morning anyway...

    in memory. I could simply keep the ...
    StuBruise StuBruise May 2007 Development
  • What clues were on the Fairlight loading screen?As stated in the manual of [B]Fairlight[/B] there shall exist clues on both the cover and in the loading screen. This might be obvious to some, but I…

    As an aside ... The inlay for Fairlight 2 has plenty of hidden pictures in it ... love it ... there are many faces and such hidden away.

    Skarpo
    :-)
    Skarpo Skarpo May 2007 Games
  • What clues were on the Fairlight loading screen?As stated in the manual of [B]Fairlight[/B] there shall exist clues on both the cover and in the loading screen. This might be obvious to some, but I…

    ... 2 has plenty of hidden pictures in it ... love it ... there are ...
    Rickard Rickard May 2007 Games
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... I know the exact addresses in memory I can use, but as ... />
    To copy SCREEN$ to memory address 32768

    LD ... ; or wherever you stored it in above routine.
    LDIR ; ... honest, but assemblers differ somewhat in their explanations of things, which ...
    DEATH DEATH May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... on the memory map, and I must been typing in the wrong ... the "sprite" by 1 pixel in memory and coping it back to ...
    Toxitalk Toxitalk May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... on the memory map, and I must been typing in the wrong ... the "sprite" by 1 pixel in memory and coping it back to ... is good info to the memory map in the orange basic programming ... use the routine to page in banks of UDGs too, and ...
    DEATH DEATH May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... /> During the the other three in memory the image would be 'shifted ... is good info to the memory map in the orange basic programming ... use the routine to page in banks of UDGs too, and ...
    Toxitalk Toxitalk May 2007 Sinclair Basic
  • Converting m$ to dataI created a maze using a matrix of 704 characters. In order to save memory, and since the maze it's just walls and spaces which could be interpreted …

    ... /> 2) Saves the maze to memory using the machine code save ... 200)
    3) Restores the memory based maze back to the ... adn 65078 contains the address in memory to SAVE to and RESTORE ... from. It is set to memory location 60000 by default.
    BloodBaz BloodBaz May 2007 Sinclair Basic
  • Sceen$ helpMost people have used screen$ at some time or another and for me what I want to do is use it or something like it as a start screen before the game p…

    ... During the the other three in memory the image would be ' ... so copying the UDG memory by an offset of ... game than the 'drop-in' snippets that people have ... the start of UDG memory, and by POKEing these ... UDGs from somewhere else in memory without actually having to ...
    gasman gasman May 2007 Sinclair Basic
  • How did games started with LOAD "" CODE auto-start?Some early games (l remember for example [B]Galaxians[/B] from 1982) was loaded with LOAD "" CODE, which in one single block first loaded the loading…

    ... loaded with LOAD "" CODE, which in one single block first loaded ... directly above the display file in memory (due to the game loading ... as the program, and included in these variables is the one ...
    ghbearman ghbearman May 2007 Development
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... a copy of yours just in case), restart the computer ... that the version of msvcrt in the z88dk/bin directory ... that's how things work in win32 -- I'm sure ... if it's not already in memory (and something like the c ... would be to run zcpp in a debugger. Visual Studio ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Development
  • Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…

    ... 8 ;counter, number of bytes in graphic store

    ... ;get byte from graphic store in memory
    ld (hl),a ... and repeat for all rows in byte

    ... 8 times, for all coloums in byte

    ... , number of side movements in one byte
    inc ...
    Rickard Rickard May 2007 Development
  • Comments for small "sprite" routine wantedI have just written my first machine code program and I am quite happy (and proud) to get it working! :smile: As a child I never learned anything e…

    ... ,8 ;counter, number of bytes in graphic store

    loadloop ... ) ;get byte from graphic store in memory
    ld (hl),a ;put ... ,8 ;b=number of rows in "sprite"

    loop1 ;main ... 8 times, for all coloums in byte

    moveonecharacter
    Dr BEEP Dr BEEP May 2007 Development
  • Unconventional way of diagnosing a faultHi everyone Some time ago I got a 48k Spectrum (issue 3B board) in a pretty bad condition. I believe the power supply transistor TR4 failed, causing…

    ... to be able to page in memory between 0 and 0x4000, so ...
    Winston Winston May 2007 Hardware
  • Multi-loader gamesHi, I have Run the Gauntlet as a Z80 file. After the initial screens it tells me to load the next stage/insert the next tape. How do I do this? I on…

    If you prefer snapshots to tape files for whatever reason then try this one; it's a Z80 snapshot of a hacked 128K version which holds all the level data in memory:

    [url]http://www.zshare.net/download/208248284735bc/[/url]
    StuBruise StuBruise May 2007 Games
  • 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…

    ... is wired that counts the memory location to read. Instead of ... scanline from 256 bytes away in memory compared to the first byte ... the previous scanline). The ULA memory counter circuit is not very ... the circuit might be described in the patent that Sinclair filed ...
    Winston Winston May 2007 Development
  • How do debuggers guess mnemonicsLet's suppose I have the following numbers in Spectrum memory: Address Byte 30000 1 30001 2 30002 3 30003 4 If I execute in assembler j…

    ... data away from the code in memory, but I've never seen ...
    John Elliott John Elliott June 2007 Development
  • Idiots guide needed for idiotI thought I would try and give a basic compiler a go. The trouble is that I have tried both hisoft and mcoderIII and it just doesnt seem to be worki…

    ... anything (Unless you poke something in memory in Runtime which may poke compiled ... it can overwrite random data in memory. Keep your graphics at the ... very end of memory space.

    To be ...
    Arda Arda June 2007 Sinclair Basic
  • A New 21 UDG Plotter BASIC ProgramHello All, Here goes... My first proper Spectrum program for 20 years! And the reason why I've been asking about multiple banks of UDGS recently. …

    ... , I'll have a go. In the meantime I've added ... />
    P=Pick graphics from memory so than can be edited ... was crashing when defining graphics in memory location 65368 other locations are ...
    Phil2 Phil2 June 2007 Sinclair Basic
  • The Fool's Workplace SurveyI thought I'd try and find out more about what my fellow WOS'ers are up to during their work hours, so I've compiled a simple survey. Overwrite my an…

    ... .

    Updated information in Skarpo's memory banks:
    Earth = flat ... /> Cross referencing against previous posts in memory banks:
    Earth = center of ...
    Skarpo Skarpo June 2007 Chit chat
  • Game OptimisationBelow is a section of code Im using for movement enermy display and collision detect. What happens is that you move the sight with ,.qa and space do…

    ... $ each time (which is held in memory after all the variables).
    memory?

    Edit:
    [URL ...
    48K 48K June 2007 Sinclair Basic
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