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Search Again :: Adv Search 1000 results in 0.016s
<1…20212223242526…34>
  • FRAMES counter...Hi Folks, I wrote a test program that uses FRAMES to generate a clock. When I tested this within BASin it worked well and kept near perfect time. …

    The FRAMES counter, and other stuff, is updated by the BASIC Interrupt Service ... interrupts will stop the FRAMES counter being updated (any routine with ... />
    This is a frame counter which can be used as ...
    na_th_an na_th_an January 2011 Sinclair Basic
  • FRAMES counter...Hi Folks, I wrote a test program that uses FRAMES to generate a clock. When I tested this within BASin it worked well and kept near perfect time. …

    ... the program is being loaded/saved). This is because the Interrupt Service ... a short time when an interrupt would not normally have been ... , 1/50sec delay for each interrupt missed whilst interrupts are disabled.
    BloodBaz BloodBaz January 2011 Sinclair Basic
  • Where's it all going?[Rerouted from 'Assembler Intricacies' in Development Forum] [QUOTE=Timmy;506104]I don't think we're in disagreement here. As I've said it's a niche…

    ... flicker-free sprites without interrupt synchronization was never something ... with the raster affects program structure and can also slow ... structure is imposed on the program. The approach takes the ... it requires a new program structure where screen drawing is ...
    Alcoholics Anonymous Alcoholics Anonymous January 2011 Sinclair Miscellaneous
  • yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…

    ... stack. Starting up such a program would be as simple as ... switch (state is on the program's stack include initial register ... T states at a 50Hz interrupt rate (about 70000 on the ... task switcher was called by interrupt

    call pushreg ; cpu ...
    Alcoholics Anonymous Alcoholics Anonymous January 2011 Development
  • Gigascreen - programming guideDoes anyone know of a programming guide for the 128K gigascreen screen mode, specifically a persistence colours table, some code (pref. C level or BA…

    You really need an interrupt-driven machine code routine to ... draw on it, meaning your program has to sit somewhere in ...
    joefish joefish February 2011 Development
  • Gigascreen - programming guideDoes anyone know of a programming guide for the 128K gigascreen screen mode, specifically a persistence colours table, some code (pref. C level or BA…

    ... ;509532]You really need an interrupt-driven machine code routine to ... draw on it, meaning your program has to sit somewhere in ... frame (via HALT, or an interrupt routine, or PAUSE 1 at ...
    gasman gasman February 2011 Development
  • Gigascreen - programming guideDoes anyone know of a programming guide for the 128K gigascreen screen mode, specifically a persistence colours table, some code (pref. C level or BA…

    ... bytes)
    DEC A ;Decrement counter
    JR NZ,attr_loop ;Repeat ...
    HALT ;Wait for 50Hz interrupt

    LD A,31 ...
    HALT ;Wait for 50Hz interrupt

    LD BC,32766 ...
    joefish joefish February 2011 Development
  • SAVEing without waiting for keypresshello, here's question for y'all. is there a way in BASIC to bypass the "Start tape, then press any key" prompt when SAVEing an array? sorry if it'…

    ... this article", but reading the program notes in the sections on ... /> DI ; 32616 243 disable maskable interrupt
    JP $04FE ; 32617 195 ...
    Battle Bunny Battle Bunny April 2011 Sinclair Basic
  • The most unique game loaderFor me it has to be Technician Ted, when the stripes give way to walking men and a timer.

    ... tape while actually loading a program as well? Not too shabby ... myself, is the Ahh loader interrupt synced at all?

    Patrik Rak Patrik Rak April 2011 Games
  • yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…

    ... the function of your di counter, it can never possibly be ... is invoked by a maskable interrupt).

    The only time ... an NMI can cause an interrupt while interrupts are disabled, but ...
    Winston Winston 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…

    ... interpret their contents in my program)? I should execute consecutive ... even such a simple program requires that your emulator ... registers. A simple calculator program will exercise your emulator some ... am I supposed to on interrupt?" The vbSpec source code ...
    Arjun Arjun May 2011 Emulators
  • multiple songs with savage enginesorry friends, another thread with my stupid questions. maybe wos should introduce a noob section for people like me? :oops: anyway, how does using …

    ... (through putting variables data, erasing program with NEW, etc). So, make ... bit of memory to store interrupt vector. By default it is ...
    Shiru Shiru May 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…

    ... when you start running your program the SEED value is always ... of time to get your program to start running.

    program or at the end of ... . This assumes the basic rom interrupt routine is running becasue it ...
    Alcoholics Anonymous Alcoholics Anonymous May 2011 Sinclair Basic
  • Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…

    ... side grows. But I must interrupt the PC software by Ctrl ... LOAD *"b* (loading a basic program). It can't do LOAD ... have just one single install program. On PC. When run it ... ZX spectrum (yes - the monitor program will probably run in top ...
    tstih tstih May 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…

    ... it out), but basically the program did set two variables with ... keypresses, value of R at interrupt, etc. Basically something along the ...
    Patrik Rak Patrik Rak May 2011 Sinclair Basic
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... press the reset button, the program starts again. The values I ... /> At this moment, after the program have finished and just before ... the Z80 is 8080 compatible, interrupt mode is probably 0.[/quote ... /reg_start_value.zip]This is the program (hopefully fixed) I've ...
    mcleod_ideafix mcleod_ideafix May 2011 Emulators
  • MicroSpeech Entry PointsHello Hardware Guys, Do any of you have any information regarding the MicroSpeech ROM. In particular: 1) Do you know what addressess cause it to p…

    ... uspeech pages in during each interrupt, because it has to 'catch ... with the INT MODE 1 interrupt.

    [QUOTE=roko;541405 ... the buffer, and how to program it...
    I think we ...
    BloodBaz BloodBaz June 2011 Hardware
  • MicroSpeech Entry PointsHello Hardware Guys, Do any of you have any information regarding the MicroSpeech ROM. In particular: 1) Do you know what addressess cause it to p…

    ... the variables area during every interrupt and buffers any string value ... a look yourself with this program :)
    [code]
    10 LET ...
    Woody Woody June 2011 Hardware
  • MicroSpeech Entry PointsHello Hardware Guys, Do any of you have any information regarding the MicroSpeech ROM. In particular: 1) Do you know what addressess cause it to p…

    ... the variables area during every interrupt and buffers any string ... a look yourself with this program :)
    [code]
    10 ... an indeterminate state if an interrupt occurred whilst the VARS ... /> [*]Your program doesn't prove that it is an an interrupt service ...
    BloodBaz BloodBaz June 2011 Hardware
  • Games featuring... relevant bugsThere was a recent improvement to the WoS database in order to classify [URL="http://www.worldofspectrum.org/forums/showthread.php?t=34261"]Games fea…

    ... *always* prove fruitless as the program thinks it's a terminal ... a chest of drawers, the program now thinks it can assign ... password (collected lift inits/snoozes) counter is now correctly reset between ...
    jp jp June 2011 Infoseek database
<1…20212223242526…34>

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HitBox

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program 21.8K 31.9K
counter 2.9K 4.2K
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