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<1…14151617181920…34>
  • Utility or routine to save/display imagesLet's assume I have an image or sprite at coordinates x,y with w witdh and h height. If I were to store this image, which storage method would allow …

    ... an utility or any available routine that would allow me to ... also have a machine code routine which can turn an are ...
    zxbruno zxbruno March 2011 Sinclair Miscellaneous
  • 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…

    ... it off with a small routine which didn't actually make ... - bring in screen pixel memory start
    ld h,a ; 4t ... l; 4t - back to the start
    djnz _PLOT2CHR_L2 ; 13/8t ...
    TomD TomD April 2011 Development
  • writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…

    ... seem enough for me to start my task. I have some ... ready and I want to test it with some simple programs ...
    PeterP PeterP April 2011 Emulators
  • This might be something new[img]http://www.711chan.org/test/src/130427925559.png[/img] Have a look at this screenshot of my emulator ZX82. Notice the copyright message? That's…

    [img]http://www.711chan.org/test/src/130427925559.png[/img]
    < ... be done instantly if the routine was recoded and running on ...
    wilsonsamm wilsonsamm May 2011 Emulators
  • 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…

    ... org 32768

    start:
    ld a,2 ; ... call printtext ; call printline routine
    ld hl,text2 ... call printtext ; call printline routine
    ret[/b]
    ... ; condition met to end the routine
    ret ; return.
    Zetr0 Zetr0 May 2011 Development
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... of a good proportional printing routine for the ZX Spectrum? Ideally ...
    Paddy Coleman Paddy Coleman May 2011 Sinclair Basic
  • A Pointless Propotional Font demoSomething I've made the last couple of days, which is probably completely pointless, but might be a bit amusing. It's also not worthy of posting thi…

    ... " that uses the proportional font routine to play GAC files. (Yes ... .
    5. Press ENTER to start (laughing ;)).

    [URL="http ...
    Timmy Timmy June 2011 Development
  • Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too. [URL="http://www.speccy.org/foro/viewtopic.php?f=8&t=408&start=53"…

    ... =8&t=408&start=53"]A fellow member at ... bytes. I did the same test using Spectaculator and it behaved ... microdrive cartridge to do this test using the same commands I ...
    mcleod_ideafix mcleod_ideafix June 2011 Emulators
  • (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
  • Just Got Spectrum +2 grey model off ebay a few problemsFinally decided to get a real Spectrum after catching up on a load of games on emulators I missed in my earlier years due to having a C64 and Atari 8…

    ... /> Having plugged it in to test I alternatively got a very ... . Any ideas on where to start on looking for where the ...
    barnieg barnieg June 2011 Hardware
  • ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …

    ... .

    The first failing test is IRContention; I will try ... the text shown by the test and they are in the ...
    adorigatti adorigatti July 2011 Hardware
  • Newbie's development thoughts.Just wanted to thank WOS development forum regulars, for the amazing information etc contained within these pages. 20+ years ago a did a little asse…

    ... Cauldwell's number printing routine got assimilated somewhat, and ... his whitenoise routine was effectively pinched verbatim - ... .Smith's sprite handling routine was greatly helpful in ... going to have to start looking at graphics and ...
    uglifruit uglifruit July 2011 Development
  • 48k to 128k upgrade - problemsHi friends! I built 128k upgrade according to the [url]http://hw.speccy.cz/128krebuild.html[/url]. After I powered on my Speccy it said hello with s…

    ... after i pressed 0 to start game, screen crashed and Speccy ... what I did wrong or test memory using some program and ... to get this 128k upgrade test and working?

    Thanks ...
    podly podly August 2011 Hardware
  • Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…

    ... br /> ret

    ; ----------------------------------------------
    ; ROUTINE: print_message
    ;
    ; prints a ... , :p

    ; ----------------------------------------------
    ; ROUTINE: get_defined_key
    ;
    ; check for ...
    polomint polomint September 2011 Development
  • saving part of a BASIC programHere's a short routine to save part of a BASIC program. The idea is that it can be merged into a program and then used to save sub-routines, etc. to …

    Here's a short routine to save part of a ... from the first line >= start to the last line ="A ... =FN p(23627):
    INPUT "Start ";a1,"End ";a2: LET l1 ...
    Battle Bunny Battle Bunny September 2011 Sinclair Basic
  • PENGY - with fixed kempston controllMy fixed version of game PENGY. Add autotest of joystick connection. Before first start game test if joystick is connect (D0-D4 of port 1F must be in…

    ... joystick connection. Before first start game test if joystick is connect (D0 ...
    velesoft velesoft October 2011 Games
  • Find-Fill-Copy functions for BASICThere's not much going on here, so here's three m/code routines to provide some data manipulation functions which are otherwise slow to do from BASIC…

    ... is defined then 'copy' will start from the top or bottom ... are two versions of each routine, using either:
    "PRINT ... fixed point then the 'initsr' routine can be discarded (this alters ... assembler listing is so that routine addresses can be calculated by ...
    Battle Bunny Battle Bunny October 2011 Sinclair Basic
  • Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…

    ... bit in the ULA+ for test if supported. And the future ... of displacement, and the ULA start the frame with the 0 ... not used pixel at the start (using the same attribute).
    antoniovillena antoniovillena October 2011 Development
  • Spectrum real speed testI don't have a real Spectrum, but I have a Romanian clone (HC-91). I always believed it was a perfect clone of Spectrum, but it turned out not to be…

    ... />
    I made a speed test that can be downloaded here ... another Spectrum clone) run the test and post the values here ... you are interested in the test idea.

    Thank you ...
    Bothkill Bothkill October 2011 Sinclair Miscellaneous
  • tiny routine to shift RAMTOP & stackCompressing some data areas above RAMTOP and wanting to make the released space available for BASIC arrays, I needed to move RAMTOP without using CLE…

    ... last segment of the CLEAR routine to finish off. It could ...
    Battle Bunny Battle Bunny November 2011 Sinclair Basic
  • Problem with a small basic routineDear all; I have been messing about with a routine (originally published in Your Computer 1982, by Tim Langdell). The idea of the program is to simul…

    ... been messing about with a routine (originally published in Your Computer ...
    Meurglys68 Meurglys68 November 2011 Sinclair Basic
  • The short blocks loaded in Jet Pac(Hope this have not been previously discussed. If so, my apologies) Is there any reason why Jet Pac loads three short blocks after the main block? I…

    ... with "1" is a LDIR routine that moves the previously loaded ... , when you are about to start the game.

    So ...
    mcleod_ideafix mcleod_ideafix November 2011 Games
  • Spectrum+2A(B) Stuck in Test ModeHello there my fellow WoS'ers, I have recently got yet another +2A(well B) but it only boots to the TEST Mode - multi colour bars with 1986 on them …

    ... it only boots to the TEST Mode - multi colour bars with ...
    Zetr0 Zetr0 November 2011 Hardware
  • The rescue of a coil.The problem at hand was a known defect transformer from the switching convertor inside a Spectrum. Both windings are not interrupted and not intercon…

    ... by means of a conductivity test with a multimeter. One probe ... right direction from the correct start pin, and shysah! 5 mm ... be ideal for a real test. Removing the coil from a ...
    roko roko November 2011 Hardware
  • How to start a new game?I know this might sound really stupid... but I've always wanted to make a spectrum game, but no zero of programing... is there any "making speccy gam…

    I know this might sound really stupid... but I've always wanted to make a spectrum game, but no zero of programing... is there any "making speccy games for dummies" available?

    where should I start with?
    VanTammen VanTammen December 2011 New game ideas
  • Writing an emulator - how to / resourcesI'm looking for a holidays project, and I'm thinking I'd like to write a simple Spectrum emulator. I've googled plenty and read some resources, but …

    ... additional suggestions on where to start. In the meantime this is ... .uk/[/url]

    To test the water I wrote a ...
    PaulMdx PaulMdx December 2011 Emulators
  • New job, start today!If only it was that simple! I packed my old job of 6 years in yesterday to go and work for our main competitors, I start at 4pm today, my old boss h…

    ... for our main competitors, I start at 4pm today, my old ...
    Macc Macc January 2012 Chit chat
  • PLOT and DRAW in machine codeHow do you go about it? If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it? I wouldnt k…

    How do you go about it?

    If I posted a really simple BASIC instruction could someone do a machine code routine so I could learn from it?

    I wouldnt know where to start... :confused:
    daveysludge daveysludge January 2012 Development
  • Using the ROMs PRINT routineI really am starting from scratch again it seems, but how do you utilize the ROM routine to print characters, I think you point te BC register to an …

    ... do you utilize the ROM routine to print characters, I think ...
    daveysludge daveysludge January 2012 Development
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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
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    harriusherbartio on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
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    AndyC on April 21
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    mel the bell on April 20

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