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  • ZX81 cassette timingIs there any exact figures known now? The only wave seems to be about 3333Hz and the gap is about 0.0013 seconds.

    Is there any exact figures known now? The only wave seems to be about 3333Hz and the gap is about 0.0013 seconds.
    Fraser Fraser March 2011 Hardware
  • Do you remember this game.Hi, I'm trying to locate a spectrum game that I played as a kid. I might not remember correctly, but I think there was an overhead map where your ch…

    ... a bridge, which needed good timing.

    I was about ...
    mm12345 mm12345 April 2011 Games
  • A wolf in sheep's clothing ...... or new wine in old skins. [URL="http://www.commodoreusa.net/CUSA_C64Select.aspx"]http://www.commodoreusa.net/CUSA_C64Select.aspx[/URL] Unfortun…

    ... a windows emulation and the loop

    For i=1 ...
    ingo ingo April 2011 Chit chat
  • Copying a SCREEN$ in ZX BASIC in 1 second?!Following on from the revived "[thread=20207]Saving a complete SCREEN$ in BASIC[/thread]" thread (although Arjun really only needed a suitable POKE i…

    ... resorting to a tedious POKE loop.

    After a few ...
    Battle Bunny Battle Bunny April 2011 Sinclair Basic
  • Small Machine Code Routines Which Maybe UsefulAs part of creating Flynn's Adventure in Bombland I created a lot of little routines to do all sorts of things. A lot of these I created based on inp…

    ...
    push bc ; 11t - store loop counter and c
    ld ... - four lines to plot per loop
    _PLOT2CHR_L2:
    exx ; 4t ...
    TomD TomD April 2011 Development
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... have a RANDOMIZE within my loop?

    Many thanks
    Paddy Coleman Paddy Coleman May 2011 Sinclair Basic
  • Three Weeks in Paradise V3.0 releasedTeam SpecNG has released V3.0 of our remake. It can be downloaded from the official site: [url]www.specng.org[/url] New in version 3.0 ============…

    ... change in the
    main loop cycle. This won't be ...
    marcoagpinto marcoagpinto May 2011 Announcements
  • quick - Zx80 ASM questionWhile I am ploughing through lots of ASM listings, one of my earlier adaptation attempts surprised me [B][asm code][/B] [code] org 32768 start: ld…

    ... next character
    jp printtext ; loop round

    textend: ; condition ...
    Zetr0 Zetr0 May 2011 Development
  • Epic Fail and Epic Win simultaneouslyThere is an arcade machine in a Glasgow pub called The Box that is similar to the machine that Rufus T Firefly's used to have, ie it has a multitude …

    ... , not even with the infinite loop "bug". Disgusted and annoyed, I ...
    The Lone Magpie The Lone Magpie May 2011 Chit chat
  • Souls of DarkonIMHO game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0007014"]Souls of Darkon[/URL] should have a "known errors" note as described in [UR…

    ... will scroll continuously in a loop (trying to find another line ...
    Einar Saukas Einar Saukas May 2011 Infoseek database
  • Your Views on... Tintin on the MoonWith the forthcoming release of the first Tintin film, a joint collaboration between Steven Speilberg and Peter Jackson, it seems fitting to discuss …

    ... good.

    These two loop for a while until you ...
    zeropolis79 zeropolis79 May 2011 Games
  • Indiana Jones and the Temple of DoomI suggest the following "known errors" description for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0002475"]Indiana Jones and the Tem…

    ... so exit to main game loop as no further
    ;progress ... so exit to main game loop
    $676d jp $6ff8 ;jump ...
    Einar Saukas Einar Saukas May 2011 Infoseek database
  • Back to BASIC[U][B]Archaeology guide to programs compiled used MCODERII.d[/B][/U] After various people have been talking about "Frank'n'stein" I decided to finis…

    ... containing end value of FOR loop
    [*]base+4 = DWORD containing ... STEP value of FOR loop
    [/LIST]
    The format ...
    Jimmy Jimmy May 2011 Development
  • Pixel Color IncorrectHello i am new to the ZX Spectrum and z80 assembly language. I am coding my first game and am having a small problem. I am trying to make the botom r…

    ... b, 1 ; set loop index for ooze fill loop

    DrawOoze ... I have not extended the loop to fill the bottom row ...
    ooze48k ooze48k June 2011 Development
  • 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…

    ... to screen location 23248. A loop draws the remaining 3 pixels ...
    ooze48k ooze48k June 2011 Development
  • (part of) screen to UDGHere is a routine to copy a Y,X-position on screen to a UDG. 0<=y<=23 0<=x<=31 144<=udg<=165 (UDG "A" to UDG "U") [code] ; start code with ; PRINT …

    Here is a routine to copy a Y,X-position on screen to a UDG.
    0
    Dr BEEP Dr BEEP June 2011 Development
  • Cobra (improved BUGFIX)This is an improved BUGFIX for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000996"]Cobra[/URL], please replace the "known errors" de…

    ... to freeze in an infinite loop:
    [CODE]
    95fe: ld ... this routine with a fixed loop:
    [CODE]
    95fe: ld ...
    Einar Saukas Einar Saukas June 2011 Infoseek database
  • 128K Contention - How to get it right?With my recent hardware hackery, I've built a 128K (toastrack) clone. I can't quite get the contention right though. What I'm lack is a clear descri…

    ... fusetest differentiate between machines through timing?
    3. What is fusetest ...
    csmith csmith July 2011 Hardware
  • Challenge Sprint 4x tape recorderHi, I noticed a [url="http://www.worldofspectrum.org/infoseekid.cgi?id=1000051"]Challenge Sprint[/url] on eBay, and checked out the WoS entry for it…

    ... , but of course load/save timing needs to be changed to ...
    mark_k mark_k July 2011 Hardware
  • An easy way to run Deus Ex, Unreal Tournament, etc, on modern systems[B]Deus Ex[/B] and [B]Unreal Tournament[/B], and other PC games built upon the first Unreal Engine, are fairly troublesome to get working with modern…

    ... cannot accurately read modern CPU timing, problems with multi-core CPUs ...
    ewgf ewgf July 2011 Chit chat
  • ANN: Tipshop updated Saturday, 30 July 2011Saturday 30 July 2011 I've been on holiday and other assorted Real-Life antics, so enjoy this ever-so-slightly tardy June (erm, July, Shirley?! Ed) u…

    ... , BMX Jungle Bike, Dustman, Froot Loop, Kong's Revenge, Kosmic Pirate ...
    hackersanon hackersanon July 2011 Announcements
  • New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…

    ... all handled in the same loop through the mainprogram, but split ...
    Sokurah Sokurah August 2011 Development
  • Kiwi OS for z80 computerHi everyone, Nearly made my z80 computer with 2K ROM 32K RAM. It has an OS im still writing called Kiwi (apple, blackberry, you get the idea ;D) he…

    ... 8000)
    JP NZ, SAVE_LOOP ;LOOP AGAIN IF NOT 0
    Robin Robin August 2011 Announcements
  • z88dk + File Handling ProblemHello my fellow WoS'ers I thought I would ask here as I am having a bit of trouble with a very simple C program that I wrote for the spectrum using…

    ... ) always -1?

    The loop controller index is working fine ...
    Zetr0 Zetr0 August 2011 Development
  • Vixen - does it have an ending?First of all I don't mean the German word [B]wichsen[/B] as this activity usually have an ending :lol: I mean Spectrum game with a lady with a whip. …

    ... not, when levels begin to loop?
    Ralf Ralf September 2011 Games
  • checking bits in BASICThe question of manipulating bit patterns in BASIC was raised recently in this [thread=35728]Keys redefine routine and key check[/thread] thread. I s…

    ... from BASIC, with a little loop to build a binary number ...
    Battle Bunny Battle Bunny September 2011 Sinclair Basic
  • ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…

    ... sources diverging on the exact timing - can anyone help?

    Thommy Thommy September 2011 Hardware
  • FFS... (the ignorance of modern youth)Sorry for the foul acronym, but I was just talking to a bloke I work with, and I mentioned that Bob Hope's widow had just passed away, and he asked m…

    ... the best comedians ever, his timing and mannerisms were perfect, he ...
    ewgf ewgf September 2011 Chit chat
  • Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…

    ...

    jp start ; Infinite loop

    draw_tile_line ld b ... and affect B for DJNZ loop 4

    djnz scroll_loop ...
    Zoltar Zoltar September 2011 Development
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