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<1234567…34>
  • Interrupt driven code at overclocked pace....Is it possible for a MC coder to do a routine (i.e. interrupt music player, for within/during Basic)if he knows said machine is running at 400 percen…

    ... do a routine (i.e. interrupt music player, for within/during ...
    CKay CKay August 2004 Sinclair Miscellaneous
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ...
    RET

    ;PREPARES INTERRUPT HANDLING
    INITIM2:

    RETI

    ; **** END INTERRUPT ROUTINE ***


    WRITECHAR ... LD H,A

    ; MERGE SPRITE COLOR WITH EXISTING PAPER ...
    robpearmain robpearmain September 2004 Development
  • Smooth Masked Sprites using fast page flip on 48k Part 2Ok, After all the suggestions in Part 1, which were all excellent (Thankyou), I opted on the following: I have 2 x 6k Offscreen areas (Yes, that's …

    ... RET


    ;PREPARES INTERRUPT HANDLING
    INITIM2:



    ; **** END INTERRUPT ROUTINE ***


    WRITECHAR ... ; LD H,A

    ; MERGE SPRITE COLOR WITH EXISTING PAPER ...
    robpearmain robpearmain September 2004 Development
  • Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?

    How long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
    Philip Kendall Philip Kendall February 2005 Development
  • Protection against MERGEI remember using a routine to protect against using MERGE to break into a BASIC listing. It was along the lines of :- 1. Enter a random line e.g. 1 …

    ... routine to protect against using MERGE to break into a BASIC ... /> If someone then tries to MERGE "" the computer will lock up ...
    Ian Hamilton Ian Hamilton April 2005 Sinclair Basic
  • Data bus at interrupt timeIt is "well known" that some peripherals can put values other than 0xff on the data bus at interrupt time, thus meaning that IM2 is slightly more fid…

    ... on the data bus at interrupt time, thus meaning that IM2 ...
    Philip Kendall Philip Kendall March 2009 Hardware
  • WOS to merge with Lemon64I was very disappointed to hear that WOS and Lemon 64 are going to merge. It just won't be the same anymore :sad:

    I was very disappointed to hear that WOS and Lemon 64 are going to merge.
    It just won't be the same anymore :sad:
    Rebelstar without a cause Rebelstar without a cause April 2011 Chit chat
  • Merge a TAP with ZX SpinHow do you go about using MERGE with ZX Spin, I've tried everything but it just keeps replacing everyting with the TAP program including the code...

    How do you go about using MERGE with ZX Spin, I've tried everything but it just keeps replacing everyting with the TAP program including the code...
    daveysludge daveysludge March 2012 Emulators
  • Ensure my interrupt handler begins at the same T-stateHi! Is there a way to ensure that an IM 2 interrupt handler starts always at the same T-state (related to the moment the ULA triggers the INT line, w…

    ... ensure that an IM 2 interrupt handler starts always at the ... ,20,21 and 22, each interrupt, and then 19,20,21 ...
    mcleod_ideafix mcleod_ideafix November 2014 Development
  • Can you MERGE using FUSE?How do you do it? I tried the command plus filename and the emulator locked up! The program to be merged is numbered correctly so its first line is…

    ... program in memory. I typed MERGE (keyword) "beeper2.szx"
    maybe ...
    mik3d3nch mik3d3nch November 2016 Emulators
  • Interrupt routineI have been trying to create an interrupt routine for playing AY music in the background but cant seem to get anything working. I have a music rou…

    ... been trying to create an interrupt routine for playing AY music ... /> Does the bank switching mean interrupt routines cant be used?
    daveysludge daveysludge November 2016 Development
  • Sainsburies to Merge with Asda PossiblyI heard on BBC news how Sainsburies are in advanced talks to merge with Asda. Although I do not live in the UK I hope not. Walmart brought Asda in th…

    ... are in advanced talks to merge with Asda. Although I do ...
    Scottie_uk Scottie_uk April 2018 Chit chat
  • How does the anti-MERGE trick work?I remember on the Beeb you decided whether to load a program and stop, or load a program and automatically run it, by choosing between LOAD and CHAIN…

    ... the auto LINE by using MERGE.

    So, how do ... that anti-hacker trick where MERGE crashes the machine? I remember ...
    equinox equinox May 2018 Sinclair Miscellaneous
  • speccy soundI know this sounds a bit vauge but can anyone explain to me why the music on some 48K games was so amazing and so much better than the usual beeper s…

    ... and have the 50 hertz interrupt 'punch' a drum sound effect ... the human ear seems to merge them (see Firefly and Hyperactive ...
    Joffa Smifff Joffa Smifff November 2001 Sinclair Miscellaneous
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... /> RET

    ;PREPARES INTERRUPT HANDLING
    INITIM2:


    ; **** END INTERRUPT ROUTINE ***


    WRITECHAR ... LD H,A

    ; MERGE SPRITE COLOR WITH EXISTING PAPER ...
    robpearmain robpearmain September 2004 Development
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... COUNT2: DEFB 0
    ;PREPARES INTERRUPT HANDLING
    INITIM2:

    RETI

    ; **** END INTERRUPT ROUTINE ***


    WRITECHAR ... ; LD H,A

    ; MERGE SPRITE COLOR WITH EXISTING PAPER ...
    robpearmain robpearmain September 2004 Development
  • Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …

    ... COUNT2: DEFB 0
    ;PREPARES INTERRUPT HANDLING
    INITIM2:
    < ...
    RETI

    ; **** END INTERRUPT ROUTINE ***


    WRITECHAR ... LD H,A

    ; MERGE SPRITE COLOR WITH EXISTING PAPER ...
    robpearmain robpearmain September 2004 Development
  • New Compo IdeaI've had this idea and would like to know what do you think about it. I think that most of us here know how to code in BASIC. The problem with Specc…

    This is what I've compiled so far:

    [quote]Resources
    =========

    * Make all caps
    ---------------

    You can turn CAPS LOCK on or off using a simple poke to 23658:

    POKE 23658,8: REM CAPS ON
    ...
    na_th_an na_th_an April 2005 Development
  • Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…

    ... it does not include the interrupt routine that must call the ... understand that. What is this interrupt routine to load the songs ... my original one using [b]MERGE[/b]. How wrong I was ...
    Paulo Kathanni Paulo Kathanni November 2006 Games
  • Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…

    ... ) and compensating for the different interrupt rates. When AY chip support ... understand that. What is this interrupt routine to load the songs ... my original one using [b]MERGE[/b]. How wrong I was ... later, and so on. An interrupt service routine can do that ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Games
  • 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…

    ... saying is that I should merge the piece flipping code back ... m>1, then you interrupt checking (when i=1 fails ...
    Einar Saukas Einar Saukas October 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…

    ... move then refuse PASS and interrupt loop
    NEXT i:
    merge both versions into a single ...
    Einar Saukas Einar Saukas October 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…

    ... move then refuse PASS and interrupt loop
    NEXT i:
    merge both versions into a single ...
    Digital Prawn Digital Prawn October 2007 Development
  • Tape and Disk breakpointsIs it possible to set a breakpoint on a .TAP, .TZX or .DSK file so that the debugger pops up when loading finishes? I'm talking about a breakpoint wi…

    ... need for an interface to interrupt the game;
    -Because I ... bytes and auto-run, anti-merge, re-cracks (done by people ...
    zxbruno zxbruno May 2009 Emulators
  • Tape and Disk breakpointsIs it possible to set a breakpoint on a .TAP, .TZX or .DSK file so that the debugger pops up when loading finishes? I'm talking about a breakpoint wi…

    ... need for an interface to interrupt the game;
    -Because I ... bytes and auto-run, anti-merge, re-cracks (done by people ...
    LCD LCD May 2009 Emulators
<1234567…34>

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Related Threads

  • Interrupt driven code at overclocked pace....Is it possible for a MC coder to do a routine (i.e. interrupt music player, for within/during Basic)if he knows said machine is running at 400 percen…
  • Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
  • Protection against MERGEI remember using a routine to protect against using MERGE to break into a BASIC listing. It was along the lines of :-<br /> <br /> 1. Enter a random …
  • Another merge?The [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0008738"]Spectrum Database[/URL] entry seems to me like a newer version of [URL="http://ww…
  • Data bus at interrupt timeIt is "well known" that some peripherals can put values other than 0xff on the data bus at interrupt time, thus meaning that IM2 is slightly more fid…
  • Two games to mergeThe games "Aterrizaje en Saturno" and "Saturno" are the same one, published in 1985 by Microhobby and afterward included in the compilation "Spectrum…
  • WOS to merge with Lemon64I was very disappointed to hear that WOS and Lemon 64 are going to merge.<br /> It just won't be the same anymore :sad:
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