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<1…21222324252627…34>
  • Saving and Loading from tape in MC?I'm actually having problems with saving and loading from the ROM routines for the interpreter... I'm currently using the following codes for saving…

    ... then pressing BREAK/SPACE will interrupt the process and return ... type (0/1/2/3 = program/narray/$array/bytes)
    ------ ($01 ... bytes in total
    for program:
    ------ ($0D-$0E) = LINE ... 10) = number of bytes in program (ie. excluding variables)
    ...
    Battle Bunny Battle Bunny July 2011 Development
  • 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…

    [QUOTE=Einar Saukas;544887]
    [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000157"][B]Alien Syndrome[/B][/URL] - problem mentioned [URL="http://www.worldofspectrum.org/forums/showpost.php?p=546411&postcount=177"]here[/URL][/quote]
    ...
    Bandit Bandit July 2011 Infoseek database
  • Bride of Frankenstein TAP has been hackedThe Bride of Frankenstein TAP on WoS doesn't have any spooks in it, so you're just wandering around an empty maze. This is because there's a RET at $…

    ... consider it to be a program bug, as it's something ... .[/QUOTE]

    However, the counter-argument for fixing this flipping ... deadline.

    The main counter-argument for fixing the problem ...
    Einar Saukas Einar Saukas July 2011 Infoseek database
  • Sneak Peak...Hi Folks, A sneak peak of the application I have been writing over the last few months (with a lot of help from this group, BASin and recently ZXDS)…

    ... right and working well. The program looks great running on a ... but found that the FRAMEs counter was no longer accurate on ... the group).

    The program is written to use the ... as required. This means the program does not need to contain ...
    Paddy Coleman Paddy Coleman July 2011 Sinclair Basic
  • 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…

    ... I supposed to place my interrupt handler routine (handle_interrupt() in ... After all, the only interrupt-like event comes from keyboard ... And what do those interrupt handling routines at 38H and ... read and fully understand monitor program written in machine code ...
    PeterP PeterP August 2011 Emulators
  • 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…

    ... the T_states counter by the appropriate value depending on what interrupt mode ...
    ccowley ccowley August 2011 Emulators
  • 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…

    ... an assembly code of interrupt handler at 38h to ... 2 or not), double interrupt frequency and video synchronization. ... consider different Spectrum models, interrupt frequencies or video synchronization ... the address at which the program execution starts?

    PeterP PeterP August 2011 Emulators
  • 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…

    ... issue 2 or not), double interrupt frequency and video synchronization. I ... 't consider different Spectrum models, interrupt frequencies or video synchronization types ... the address at which the program execution starts?[/QUOTE]
    Yes ...
    ccowley ccowley August 2011 Emulators
  • 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…

    ... it disappears and a monitor program gets loaded, for Manic Miner ... works well in the monitor program (I can type in commands ... .

    I thought my interrupt handling routine was faulty and ... pushed on it before the interrupt.

    Because my ...
    PeterP PeterP August 2011 Emulators
  • 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…

    ... may be wrong with my interrupt mechanism/keyboard reading. Let's ... with interrupts. Here's my interrupt handler:

    [CODE]
    PeterP PeterP August 2011 Emulators
  • New WIP underway - 'Dingo'.Hi, Prepare for a long post. Perhaps I can even challenge ewgf here. :razz: Anyway, I've been meaning to get into Z80 programming and making a game…

    ... probably also remove that TIME counter and replace it with a ... lives and level counter. Remember, this is only a ... at the start of the program so I won't have ...
    AndyOaks AndyOaks August 2011 Development
  • BEEPER Demo: "9 CHANNELS" (ZX48)Hi my friends. Another year, another demo for Spectrum 48K. :) This time - "9 channels" demo, for BEEPER fans. [url]http://pouet.net/prod.php?wh…

    ... 50th of a sec. The interrupt itself could bring the main ... constantly monitor an IM2 driven counter AND the main loop will ... straight back in after the interrupt has completed.

    Suffice ...
    BloodBaz BloodBaz September 2011 Brand new software
  • Pixel Pimp, graphics utilityHi All, [IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes/pixelpimp.gif[/IMG][IMG]http://i1142.photobucket.com/albums/n608/daveyboyhughes…

    ... name and it allows any program to load these blocks directly ... the chance of space bar interrupt then probably back to basic ...
    Einar Saukas Einar Saukas September 2011 Development
  • Howto play the AY files in the Spectrum +3 ?I have read that is possible to play the AY files in the real spectrum 128 hardware. Can someone to explain how to do it ? thx in advance

    ... file. Now I have to interrupt the playing, then go back ... , I was not able to interrupt one and get to the ... />
    Otherwise very very fine program. Thanks. And keep working on ...
    Hood Hood September 2011 Sinclair Miscellaneous
  • The zxodus engineI've been playing around with this for a couple of days now. Its one of the best things I've seen for sinclair basic, and I've seen nothing about it …

    ... ]The thing was, after the program has run, I immediately LIST ... the program. And whenever I do that ... corrupt.
    The program works on a IM2 interrupt and shouldn't ... code (yet) but maybe the interrupt return is hard setting the ...
    BloodBaz BloodBaz September 2011 Sinclair Basic
  • ZX80 and 81 hardware questionsI'm finding a lot of the documentation that is ostensibly about the hardware of the ZX80 and 81 to be primarily about the software. I was hoping some…

    ... 564367]M1 + IOREQ active (ie, interrupt acknowledge) triggers horizontal sync, with ... triggered 16 cycles after after interrupt acknowledge; this isn't ... mean the generator and the counter that goes with it ? ... is generated based on the counter. So in theory if ...
    Thommy Thommy September 2011 Hardware
  • Z80 sound enginesI'm looking for a decent sound engine to use in a Z80 program I'm writing, but I've no idea which is the best/fastest/easiest to use. I could do wit…

    ... to use in a Z80 program I'm writing, but I ... least amount of time every interrupt.
    I tried Romford from ...
    Fikee Fikee September 2011 Development
  • MCODE problem...Hi Folks, Trying to write a simple machine code program to hatch the screen. So far I have the following but even this is not working - it does not…

    ... worked! Here is the completed program:[/quote]
    Congrats! I did ... compact equivalent version of your program:[code] ld hl,&4000 ... , using it as a loop counter of the 256-bytes for ...
    obo obo October 2011 Development
  • MCODE problem...Hi Folks, Trying to write a simple machine code program to hatch the screen. So far I have the following but even this is not working - it does not…

    ... covered, here's my original program with the filling direction reversed ... looks like a traditional looping counter now :)
    obo obo October 2011 Development
  • Need help with tzxingI recently got a copy of this Polish text game: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0006622[/url] I can't make a tzx of it howeve…

    ...
    [code]
    1- A: Program : ODDZ.COBRA Length: 19 Speed ... /> 3- 449: Loop Start, Counter: 512
    4- 44C: ... /> 10- 5B4: Loop Start, Counter: 512
    11- 5B7: ... /> 17- 246F: Loop Start, Counter: 512
    18- 2472: ...
    Andrew Barker Andrew Barker October 2011 MIA/STP/SDP
  • Auto generated spritesLooking around for some graphics I came across [url]http://blog.disktree.net/?p=19[/url] , one of several such pages. Need the odd 8x8 UDG or two (…

    ... ) B is decreased. The UDG counter is increased to point to ... that seed. By writing another program, an editor, using the same ...
    kgmcneil kgmcneil October 2011 Development
  • Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…

    ... that way it could raise interrupt after given number of scan ... />
    Modifying every single Spectrum program ever to be compatible with ...
    Philip Kendall Philip Kendall October 2011 Development
  • Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…

    ... values. It just needs a counter-port for lines, right?
    OUT Linecounterport,128 = do interrupt after 128 lines was passed ...
    LCD LCD October 2011 Development
  • Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…

    ... values. It just needs a counter-port for lines, right?
    OUT Linecounterport,128 = do interrupt after 128 lines was passed ... number to generate a line interrupt before, with >=192 ... can tell the type of interrupt that occurred (frame, line, ...).< ...
    obo obo October 2011 Development
  • Pac-Man EmulatorMy Pac-Man Emulator for the Spectrum +2A/+3 is now available for download from: [url]http://simonowen.com/spectrum/pacemuzx/[/url] You'll need to su…

    ... ;0038 to get control every interrupt, but that's all. I ... and changing the way the program interfaces with the user to ...
    na_th_an na_th_an November 2011 Brand new software
  • Distinguishing between models?I'm running the risk of being pointed to the faq here, so sorry in advance. Something I'm trying out requires that the program can distinguish betwe…

    ... trying out requires that the program can distinguish between which one ... of T states per one interrupt. (all ZX models with 128kB ...
    velesoft velesoft November 2011 Development
  • Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …

    ... 'll use A as a counter to indicate which of the ... add 1 to the sprite counter and limit the numbers
    ;add 1 to the sprite counter
    and 7
    ;and ... (almost) start of the
    ;program and Carry On Spriting!
    counter and set it to 8 ...
    Turkwel Turkwel November 2011 Development
  • What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…

    If you run this program:
    [code]10 PAPER 6: ... /> You will see how the interrupt begins much later in the ... in both machines, the keyboard interrupt routine is almost the same ...
    mcleod_ideafix mcleod_ideafix November 2011 Hardware
  • What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…

    ... =csmith;583148]Working out the interrupt timing will be fun. It ... write a program which uses IM 2 to run an interrupt handler ... . If it is, then the interrupt will trigger on h-retrace ...
    mcleod_ideafix mcleod_ideafix November 2011 Hardware
  • What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…

    ... is the interrupt respect the start of a frame. The program is ... . This is repeated at each interrupt.

    The screen ... The scope shows that the interrupt is actually triggered 22us after ... the reaction time from the interrupt triggering to the moment ...
    mcleod_ideafix mcleod_ideafix December 2011 Hardware
<1…21222324252627…34>

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