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Search Again :: Adv Search 1000 results in 0.057s
<1…17181920212223…34>
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... sure what you're getting at as this is very easy ... run the 128's PLAY routine in an interrupt, you'd ... a way to use the ROM to interpret PLAY strings for ... interesting investigation if someone looked at the limitations and the kinds ...
    Alcoholics Anonymous Alcoholics Anonymous February 2003 Sinclair Basic
  • Loading at 1500 Baud.Just curious, I read that some of you want to load their games at 1500 Baud. Why do you want to do that now these days? Why wait 4,5 minute if you ca…

    ... TAP-files through the parallelport at more than 48000 Baud. It ... Spectrum. By altering the ROM load/save routine I can load/save ... access harddisk, diskette or CD-ROM station.

    So you ... server and the commands typed at the Spectrum give the results ...
    Dr BEEP Dr BEEP February 2003 Emulators
  • Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…

    RUN goes to ROM-routine at #1EAC,

    so RANDOMIZE ...
    Dr BEEP Dr BEEP March 2003 Sinclair Miscellaneous
  • Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…

    ... wrote:
    RUN goes to ROM-routine at #1EAC,

    so RANDOMIZE ...
    MrShhh MrShhh March 2003 Sinclair Miscellaneous
  • Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…

    ... wrote:
    RUN goes to ROM-routine at #1EAC,

    so RANDOMIZE ...
    MrShhh MrShhh March 2003 Sinclair Miscellaneous
  • Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…

    ... the adress of your BREAK-routine (MC) and you return to ... BASIC through the NEXT-STATEMENT ROUTINE!

    So let's ... ),A
    JP CONTINUE-IN-ROM

    ERRORMESSAGE:
    DEFS ... /> By CONTINUE-IN-ROM you mean CONTINUE statement at L1E5F? The one ...
    MrShhh MrShhh March 2003 Sinclair Miscellaneous
  • Run BASIC program by R. USR xxxxxGuys, please help. Suppose I have BASIC program in my Spectrum 48K starting with line 10. I'd like to start it by RANDOMIZE USR xxxxx. Which paramete…

    ... the adress of your BREAK-routine (MC) and you return to ... BASIC through the NEXT-STATEMENT ROUTINE!

    So let's ... ),A
    JP CONTINUE-IN-ROM

    ERRORMESSAGE:
    DEFS ... /> By CONTINUE-IN-ROM you mean CONTINUE statement at L1E5F? The one ...
    Dr BEEP Dr BEEP March 2003 Sinclair Miscellaneous
  • Programing ROM CART from PCHave anybody tried to make a piece of hardware that would be able to program (burn) SINCLAIR cartridge from PC? In the sense, you take TAP or TZX and…

    ... as the module (or ROM) for Interface 2 has to ... runable without Sinclair ROM (no calls to ROM) and must be ... runable from adress 0 (Alternative: a routine ... to copy and decompress it to RAM at right ... page in a different ROM of 16 Kb size.
    LCD LCD April 2003 Sinclair Miscellaneous
  • TZX compatibility issuesI seem to have a problem with using TZX files on different emulators. Specifically, files Saved As TZX from emulator. I better explain: I have a fe…

    ... need to modify the format at all (even if it must ... already wiped that info out (Rom routine's tolerance being higher than ...
    Alessandro Tommasi Alessandro Tommasi May 2003 Emulators
  • TZX compatibility issuesI seem to have a problem with using TZX files on different emulators. Specifically, files Saved As TZX from emulator. I better explain: I have a fe…

    ... />
    The rom routine can load tapes played back at 130% when I ...
    Fraser Fraser May 2003 Emulators
  • Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…

    ... with the bytes from the ROM.
    [/quote]
    They are ... that's another story :). Still, at least it has EXE breakpoints ... same code 484 yet the routine calculates different codes so I ...
    BadBeard BadBeard August 2003 Sinclair Miscellaneous
  • Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…

    ... to find the "multiface 128 rom" for yourself. It needs to ... all available**** from the archive at [url="http://www.worldofspectrum.org ... contents of Accumulator ie.3 at memory location 40000
    < ... ways of writing this similar routine but this should give you ...
    BadBeard BadBeard August 2003 Sinclair Miscellaneous
  • ArtistryIn my younger days (and to a certain extent, now) I was always intrigued about how the loading screens were constructed. Back then I'd assumed it was…

    ... source. I use the routine at #22B1 in ROM to calculate the adress ... .

    so a line at Y-pos=100 fills between ...
    Dr BEEP Dr BEEP August 2003 Games
  • AssemblersProbably asked a question that's been asked a million times before... but... I've decided to do a bit of old Speccy machine coding again, after 20 y…

    ... br /> [quote]
    [I]- DRawing at the bottom of the screen ... can write your own DRAW routine (with a bit of ... adapt the one in the ROM.

    [quote]
    at the bottom and screwing ... and call the routines in ROM (#04C2=SAVE, #0556=LOAD ...
    GOC GOC August 2003 Development
  • New BASin (Alpha Release 9) upHi all, Since you're more interested in here about BASin, here's the new update announcement. There's no major changes to the way the system work…

    ... compiling to point at ROM routines, before gradually converting each routine into my ...
    Dunny Dunny September 2003 Development
  • Sync-buzzer, interrupts and general confusionBeen wittering on about this in the Misc group, but thought it was best discussed here. Basically been trying to recreate the Sid-Sound effect from A…

    ... you can't change the ROM code there.
    ... its interrupt service routine address. Peripheral ID ... 's interrupt service routine at I*256+255, ... placed the interrupt service routine at 0xf1f1 as planned.
    routine is called. At the end ...
    Alcoholics Anonymous Alcoholics Anonymous September 2003 Development
  • ZX81 and ZX80 emulator on Spectrum 128KA couple of weeks ago we were talking about a new ZX81 emulator for the 128K. Someone beat me. More details at [url="http://www.fruitcake.plus.com/S…

    ... and I could actually look at the ROM code :)

    The ... basically reused all the Spectrum ROM code, and, of course, ... is output as one cycle at 2040Hz (the Spectrum, being clocked ... opportunity for the tape load routine to synchronize with the edges ...
    Alcoholics Anonymous Alcoholics Anonymous September 2003 Emulators
  • ZX81 ScrollingI'm tempted to have a go at a bit of ZX81 programming, using MCODER II, though I could really use a fast multi-directional scrolling routine. Does a…

    ... /> Up is the normal SCROLL-routine in ROM
    and down is ... left you could use the routine as above and not compress ... screen due to the space at the end to erase the ...
    Dr BEEP Dr BEEP February 2004 Development
  • Game Editor questionI'm currently updating my image utility - TommyGun and my old Map editor, which I haven't released on WoS yet. My question is this. Would people li…

    ... program. If the library routine itself contains more LIB declarations ... binary. Importantly, each library routine is attached exactly once to ... separate code, data destined for ROM (eg certain constants and ... be blown to ROM and will lie in RAM at some other ...
    Alcoholics Anonymous Alcoholics Anonymous February 2004 Development
  • ROMDoes anyone have a complete list of the routines in the ROM of our beloved ZX Spectrum? Thank you. [ This Message was edited by: wilsonsamm on 2004-…

    ... list of routines at the nvg site. file: spectrum-rom.txt directory ... .

    These are just routine names. Origin unknown.

    routine names and labels for another ...
    Geoff Geoff February 2004 Sinclair Miscellaneous
  • TZX format updateHi folks. Following the private communication with Andy I would like to start a discussion on changing the TZX format to reflect new needs and improv…

    ... belive Mike Waynne was looking at.

    I've also ... noticed that some seemingly ROM Loader have 6000 pulses instead ... taken from the load/save routine we can deem them as ... add blocks where required (CPC ROM & Turbo blocks, ZX81 block ...
    Andrew Barker Andrew Barker February 2004 MIA/STP/SDP
  • loading sounds.. and stripes!Yesterday me and a friend started to discuss (after some glasses of wine) about that wonderful sound as coming out though the telly then you load a t…

    ... toggling on/off the speaker at regular intervals, which produces the ... toggling on/off the speaker at (relatively) random intervals, because the ... />
    The loading routine in the Spectrum's ROM is intentionally designed ...
    GOC GOC February 2004 Sinclair Miscellaneous
  • Any Errors?Any errors you feel Sinclair Research or even Amstrad made with the speccy??

    ... :
    Being able to plot at a pixel position = PLOT x ... /> So therefore change the PRINT AT command to use pixels rather ... than character squares - PRINT AT 65, 89; "Hello World!".
    ROM to fit in a PRINT routine that worked ...
    monty.mole monty.mole March 2004 Sinclair Miscellaneous
  • Strange thing with SPIN emulatorI have found a strange thing using SPIN emulator. I have a TZX version of game (for example, "Blinky's scary school"). It loads and works OK. When I …

    ... if you select 'Flashload Standard (ROM) blocks'. However if you uncheck ... also fails at this point, so maybe a dodgy ROM call or ... analysis of the load/decryption routine (if present).

    I ...
    Andrew Barker Andrew Barker March 2004 Emulators
  • Making a mapI should learn Z80 assembly, but I don't have the time (really busy) and I feel like making a game. I've tried with Colt which gives me enough speed…

    ... and py) to the routine from BASIC?[/quote]
    ... is it doing. Why that "AT" code?[/quote]

    AT).

    [quote]4 ... because the routine uses the PRINT routine in the ROM it ... certain variables in the ROM - and the top ...
    cyborg cyborg March 2004 Development
  • Sound DreamJust daydreaming, don't beat me for this, if any of you assembler guru's (especially emulator developers) ever are in need of new ideas, it would be…

    ...
    Firstly, you're limited at the minute to sprites and ... your debugger, find the routine that draws a polygon in ... Trap the Gunsight sprite draw routine. Tell the script to ... ? it's not the ROM that does it. You ... it, and allows the ROM to carry on around it ...
    Dunny Dunny April 2004 Games
  • VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…

    ... you weren't using BASIC at all and the entire ... /> No. On power up the ROM puts the z80 in im1 ... to $38. The code at $38 reads the keyboard and ... mode and write an interrupt routine that simply does an "ei ... This depends on the ROM's isr at $38 running and is ...
    Alcoholics Anonymous Alcoholics Anonymous May 2004 Development
  • TZX in ROM...Is it possible to modify BASIC ROM to load TZX images from external memories like Flash EPROM? [ This Message was edited by: klingler on 2004-07-0…

    ... . I have altered the ROM-routines at #556 (LOAD) and ... your harddisk, diskette or CD-ROM.

    It ... in TAP-file using the ROM-routine to load (like OUTRUN ... eprom holding the Spectrum ROM in lower bank for ... hold an altered ZX81 ROM with capability to load ...
    Dr BEEP Dr BEEP July 2004 Sinclair Miscellaneous
  • InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…

    ... note that these machines run at 3.54 MHz, so ... bytes onto the data bus at random times, which makes ... (JR) at 0xffff. Then, the first byte of the ROM (DI, ... interrupt will not be accepted at this point. However, the ... a bug in the ROM's NMI routine. It was intended ...
    Fraser Fraser July 2004 Development
<1…17181920212223…34>

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