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Search Again :: Adv Search 1000 results in 0.017s
<1…19202122232425…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…

    ... there is a 24 bits counter for the computer up-time ... /> The answer is if your program doesn't use it you ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Development
  • 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…

    ... for a maskable interrupt.
    DEC BC Decrease the counter.
    LD ... A,B If the counter is thereby
    OR C ...
    Rickard Rickard May 2007 Development
  • Should +2's Be left turned on to save games?Hi, Forgive me for asking you guy's a daft question but, I was just wondering what you think about leaving a Spectrum +2 turned on all the time. The …

    ... loading! You can snapshot any program using the +D's built ... , but most if not all multi-loaders are available on the ...
    ewgf ewgf May 2007 Sinclair Miscellaneous
  • 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…

    ... 555 timer, and a johnson counter to keep track of where ... can use the Speccy to program flash chips with it :-)
    Winston Winston May 2007 Hardware
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... at the start of the interrupt, and using the stack so ... , as it expected no further interrupt to occur until the next ... bright bit from a Multiface program (as I did) you can ...
    wokani wokani June 2007 Games
  • 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…

    ... z=general counter
    [/QUOTE]

    Now what the program does ...
    Toxitalk Toxitalk June 2007 Sinclair Basic
  • Pal10h8 (128/+2)Hi, I'm trying to get hold of one of the PAL10H8 chips used in the Spectrum 128 and +2 (grey) machines, for use in such a machine. In the latter cas…

    ... /> >Anyone have, able to program, or know where I can ... the file for a GAL16V8, program a new GAL and put ... the old PAL10H8.

    Bye

    Jos? Leandro
    Jose_Leandro Jose_Leandro June 2007 Hardware
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... to have this in an interrupt service routine so that the ... ) can occur in the main program without worrying about it.
    Alcoholics Anonymous Alcoholics Anonymous June 2007 Development
  • Tapir feedback[QUOTE=jpablo]Are you planning to add support for decoding VOCs/WAVs from the tool as well?[/QUOTE] Since Luca offered help, we may together even so…

    ... running a disk to tape program on the Speccy, it takes ... is different (maybe use a counter and name the files "1 ... basic listing from within the program would be nice too, maybe ...
    DEATH DEATH June 2007 Emulators
  • A challenge thats probably impossiblehere's a challenge for all you coders. Given a snapshot, is it possible to create a program to sniff out the original start address for the game that…

    ... it possible to create a program to sniff out the original ... typical init code (stack, border, interrupt)
    the third is to ...
    Fikee Fikee June 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    [code]
    1 LET n=191: BORDER 0: PAPER 0: INK 7: CLS : DIM i$(3,9):
    FOR i=1 TO 3: LET i$(i)=" # # # # ": NEXT i: LET p=16: LET b=0: LET a=p:
    LET s=0: FOR y=0 TO 14: LET e=y/2=INT (y/2): FOR x=(1-e)*24 TO e*24 STEP e*2-1:
    PRINT AT 21 ...
    Digital Prawn Digital Prawn July 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... instruction at address 0xd4d4 (interrupt service routine entry)
    interrupt routine
    [/code]
    interrupt service routine scroll_isr().
    interrupt routines with the generic isr as the program' ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…

    ... 14000 cycles from the interrupt to the top of ... = 55216 cycles from the interrupt to when the raster catches ... labels in your C program and all the labels ... subroutine in the main program) and take not of ... on runtime while the program runs (average and maximum ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • So long and thanks for all the fishIm off now. Alot of the chat here reminded me too much of of the chat in the school yard etc.... Not bitter, as my sig says just bored. Its been f…

    ... - namely to create a harmonic, multi-faceted, knowledge endowing environment rich ... (NOT the wonderful Speccy emulator program)...- three things that sprint to ...
    DEATH DEATH July 2007 Chit chat
  • B: drive dont workHi all, I went to Maplin today got myself a DIY lead the one with the proper 34 way edge connector for the Spectrum+3 other end 34 way to floppy driv…

    ... />
    I have tried the program called BFormat but when loaded ... /> I load this from tape bye the way as I am ...
    DEATH DEATH July 2007 Hardware
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... will be looking into fixing. Program notes follow:-

    program now it's been ... br />
    Problems with above program
    ----------------------------

    It ... [code]
    a generic loop counter
    b
    c
    Digital Prawn Digital Prawn July 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... on is found then the program exits. I could find no ... -liner it always terminates the program.

    Therefore you can ... value of a FOR loop counter via a LET statement just ... handy way to change the program flow according to a condition ...
    Digital Prawn Digital Prawn July 2007 Development
  • Platform Game Designer 2?I've started tinkering around with some code today and have decided upon a number of handy little features that it would be nice to have. For the li…

    ... heavy going and horrendous to program in places. Much of the ... got object 0
    Reset counter
    If on screen 3 ...
    jonathan jonathan July 2007 Development
  • 3eExplorer releasedHi. As you may know from some of the other threads, I've been using Garry Lancasters excellent [URL=http://www.worldofspectrum.org/zxplus3e/]+3e[/URL…

    ... />
    The question is your program expect a "half file" for ... image & ZX file transfer program with HDF256 format. This new ... ( 64Mb only ) works with your program ( I can see the files ... in the emulators

    Bye

    Jos? Leandro
    Jose_Leandro Jose_Leandro August 2007 Sinclair Miscellaneous
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... , here is the sheepdog trials program, now with (a) to (g ... your suggestions implemented, including the counter. I have set it to ...
    Digital Prawn Digital Prawn August 2007 Development
  • Probably NOT the 80s thing I'm nostalgic for...Compare the photo here: [url]http://news.bbc.co.uk/1/hi/uk/6957589.stm[/url] And the one about 3/4 the way down this page: [url]http://www.thunder-a…

    ... improving their nuclear weapons to counter any American advances, but it ... a target. There was a program announced earlier this year to ... the tail end of a program that began in the 70s ...
    Matt_B Matt_B August 2007 Chit chat
  • Probably NOT the 80s thing I'm nostalgic for...Compare the photo here: [url]http://news.bbc.co.uk/1/hi/uk/6957589.stm[/url] And the one about 3/4 the way down this page: [url]http://www.thunder-a…

    ... improving their nuclear weapons to counter any American advances, but it ... the tail end of a program that began in the 70s ...
    Zagreb Zagreb August 2007 Chit chat
  • What I hate about computers and/or video gamingYesterday I spent approximately four months (subjecively that is, objectively it was around two to three hours) fixing my mate's PC. I won't bore you…

    ... /> Most laptop CPU's are multi-voltage now, and only draw ... choses to lock up a program or window, so that when ... it's the third party program at fault, but WinXP is ... supposed to check every program instruction before performing it, so ...
    The Starglider The Starglider August 2007 Chit chat
  • Russian clone of ZX-Spectrum 48kThe classic russian clone of ZX-Spectrum 48k [URL="http://sblive.narod.ru/ZX-Spectrum/Leningrad48k/Leningrad48k.htm"]http://sblive.narod.ru/ZX-Spect…

    ... great but you need to program the FPGA, it have the ... and "ilovespeccy" clone.

    Bye

    Jos? Leandro
    Jose_Leandro Jose_Leandro August 2007 Hardware
  • Multi Scribe 4Hello, at least I succeded to convert Multi Scribe 4 to tzx. I cannot use it but maybe you can find. Question: where can I upload it for you to test…

    Hi,
    I uploaded the program.
    Please ignore my last P.M. because I succeded converting on the last attempt. What a luck!!
    I used a walkman and -fr1 option and went smooth.

    Bye, Lovespider
    lovespider lovespider August 2007 MIA/STP/SDP
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... of before, otherwise sometimes the program will try to check ATTR ... , you can sacrifice the lives counter, since the game is easy ...
    Einar Saukas Einar Saukas September 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... of before, otherwise sometimes the program will try to check ATTR ... , you can sacrifice the lives counter, since the game is easy ...
    Digital Prawn Digital Prawn September 2007 Development
  • IY RegisterIve got a really bizarre bug, and I have only just started using the IY register. I seem to remember reading somewhere in a programming book, to neve…

    IY is used by the rom interrupt routine. If you have im1 interrupts running your program is going to crash.
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
  • Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…

    ... it from when the Z80 interrupt occurs? This is offset exactly ... might just put its T counter low byte on the bus ... />
    I mean, the IM2 interrupt takes 19T states to reach ...
    Patrik Rak Patrik Rak September 2007 Emulators
<1…19202122232425…34>

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