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  • New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…

    ... CRC check was performed to test the decode against what it ... (which means emulating the load routine's instruction-by-instruction cycles ...
    ghbearman ghbearman May 2007 Development
  • Game Programming Source Code & Startup HelpHi there, I'm planning on porting an existing commercial title to the speccy. I'm in the process of disassembling the original code and commenting i…

    ... being displayed.

    - Test what step in X-axis ... . Simply make some simple test where your sprites will be ... /> AND 7
    ... etc (notorious routine)
    ... repeat.
    ; note ... tables. Excellent example is PLOT routine.

    - don't ...
    omega omega May 2007 Development
  • ZXSpin 0.62 Available nowAs promised (and only a [i]little[/i] past the deadline) here is the latest version of ZXSpin. Many bugs have been fixed, and a few new features add…

    ... made a bit complex multicolor routine which is working well on ... has sent anything that will test it[/i].

    It ...
    Dunny Dunny May 2007 Emulators
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... \Simple-Test\simple-test.c -o E:\z88dk\work\Simple-Test\simple-test.bin ... \include E:\z88dk\work\Simple-Test\simple-test.c C:\DOCUME~1 ... try it out on a test program to see what it ... to use a leaner, faster calling convention (when you call sp1_MoveSpr ...
    Alcoholics Anonymous Alcoholics Anonymous May 2007 Development
  • Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…

    Just done a quick test, and the routine above seems to work ok ...
    icabod icabod May 2007 Development
  • Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…

    ... we wait for Patrik to test his code?

    62 ... /> ; and jump to the correct routine from the table.

    icabod icabod May 2007 Development
  • 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…

    ... a way meaningful to the routine that does this).

    test, but displaying results on LEDs ...
    Winston Winston May 2007 Hardware
  • Delay routineAs some people are aware, I have recently starting writing a [url=http://fuse-emulator.svn.sourceforge.net/viewvc/fuse-emulator/trunk/fusetest/]autom…

    ...
    jr nz,no-exit ; test on H > 0
    routine
    ld l,(hl) ; fetch ...
    Dr BEEP Dr BEEP May 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…

    ... line). 2- the scroll routine will be dealing with messages ... false. While loops always test the true/falseness of the ... while loops. If the test results in false the ... in while loops the test is executed at the ... i" will equal 8 (the test condition "i!=8" is ...
    Alcoholics Anonymous Alcoholics Anonymous June 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…

    ... 've find a way to test bit 7 of "bmp".
    Alcoholics Anonymous Alcoholics Anonymous June 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…

    ... If you run this test program once you'll see ... will be executed while the test condition is true. In ... code byte by the while test. A specific case of ... use of a display address routine in the spectrum library ... as shown in this test program will be used.< ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • ZX80 Space InvadersI wonder if anyone managed to get this ZX80 game on the following page working? [url]http://home.micros.users.btopenworld.com/zx80/zx80software.html…

    ... website, it keeps calling the built in display routine at regular intervals ...
    Digital Prawn Digital Prawn July 2007 Games
  • 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 asm) so your "scroll-test.c" became module "scroll".

    [CODE]// scroll-test.c

    ...

    calling an external function like _wrapper ...
    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…

    ... />
    memcpy() is a library routine written in asm that uses ... a library routine you should.

    The for-loop test "i ... I would redo the d_Print() routine to print a maximum of ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • How do I clear only a specific area of a screen (quickly) in machine code ?I'm looking for a machine code routine which will clear the first 20 rows of the Spectrum's display (or any number of rows or columns) . I have found…

    ... BEEP;200758]
    Best visible test when you change the LD ... D,255 ;-)

    Your routine works fine for full lines ...
    hldswrth hldswrth 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…

    ... just a front-end for calling [URL="http://z88dk.cvs ... at address 0xd4d4 (interrupt service routine entry)
    wpoke(0xd1d2, ... () is running in the interrupt routine
    [/code]

    routine scroll_isr().

    ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • Preferred way of determining Y co-ord in assembly?I know of 2 ways of calculating the y-cord of a pixel row for the speccy in assembly. One is to calculate the address by ways of shifting and masking…

    ... delay in posting my routine but after seeing the ... it appears because the routine fails after crossing the ... the meantime here is the routine anyway.

    ... routine writes a 8x8 black square by way of test. ... To use the routine poke address ...
    Arjun Arjun 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…

    ... />
    I thought that my routine is a bit slow, and ... count before and after the routine in the debugger window. Subtract ... memopd() since I need to test the entire strings library before ...
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • Poorly Spectrum + Fault diagnosis help needed!Hi, I've got a Spectrum+. Sometime in the past I broke it and sent it off to be fixed. It came back working good as new, but with an issue 2 board i…

    ... -grief is the ROM memory test is very simple, and can ... modes - therefore, to the ROM routine the whole of RAM checks ...
    Winston Winston July 2007 Hardware
  • How about making a diagnostic program for 128k speccys?Hi guys, I was just chatting with DEATH today about a problem i had with my 128 heatsink spectrum and the need for a 128k speccy diagnostic program …

    ... /> Does anybody know of a routine that will page in a ... would really like, is a routine that pages ANY page I ... top of the RAM map, test the RAM like Geoff's ... .

    Andy, if that routine in the 128 ROM is ...
    DEATH DEATH 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…

    ... /> }
    }

    ////////////////////
    // interrupt routine

    M_BEGIN_ISR(isr)
    test message for the pixel scroller routine... ");
    }
    Alcoholics Anonymous Alcoholics Anonymous July 2007 Development
  • How about making a diagnostic program for 128k speccys?Hi guys, I was just chatting with DEATH today about a problem i had with my 128 heatsink spectrum and the need for a 128k speccy diagnostic program …

    ... didn't write this particular routine though, it was pointed out ... it's a simple bit test, or whether it does random ... and it'll run the test.
    Winston Winston July 2007 Development
  • 68000 programming.Anyone here know anything about this? My question is: how does the programmer know how long hisinstructions are? Do determine the operands to branch …

    ... 'd need to mask and test for it explicitly, or forget ... ,d2
    bclr #$d,d1 test if we've overflown
    routine if not. I do this ... has.
    INTER is the routine which (eventually) checks if an ...
    wilsonsamm wilsonsamm July 2007 Chit chat
  • 68000 programming.Anyone here know anything about this? My question is: how does the programmer know how long hisinstructions are? Do determine the operands to branch …

    ... ,d2
    bclr #$d,d1 test if we've overflown
    routine if not. I do this ... has.
    INTER is the routine which (eventually) checks if an ...
    Laser Laser July 2007 Chit chat
  • Question on Z80 R/W cycles.Snipped from the complete spectrum ROM disassembly: [CODE] Now the memory is checked. 11DA RAM-CHECK LD H,D Transfer the value…

    ... routine just loaded RAM with '1' and decremented (HL) for the test ... ZX81 that this two-stage test was introduced.
    I have ... outbid by you lot ) to test how these flags work when ...
    Geoff Geoff August 2007 Sinclair Miscellaneous
  • Question on Z80 R/W cycles.Snipped from the complete spectrum ROM disassembly: [CODE] Now the memory is checked. 11DA RAM-CHECK LD H,D Transfer the value…

    ... , if memory is faulty, this routine won't detect it - it ... not a thorough memory [b]test[/b], but I think it ... tedious and largely pointless memory test sequence performed by PC BIOS ...
    Laser Laser August 2007 Sinclair Miscellaneous
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... 'flyback' interrupt routine sets the flag and I test for it each ... 'R' register because you can test for it quicker than doing ... any other flag test and speed is important in ...
    frobush frobush September 2007 Games
  • ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…

    ... if my little 128k Sound routine will complile.
    ([url]http ... :

    [code]
    /*
    Test 'PLAY' 128K
    @ 21 SEPT ... the player in an interrupt routine. z88dk has an [URL="http ...
    Alcoholics Anonymous Alcoholics Anonymous September 2007 Development
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Latest Posts

  • I am currently watching.....
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    John Elliott on April 21
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