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<1…12131415161718…34>
  • 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…

    ... bytes long. This generic interrupt service routine takes care of ... and return to normal program execution. The order of ...
    im2_InstallISR() will install an interrupt service routine on any vector ...
    The next test program will show these ideas in ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • 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…

    ... So discussion about this program is going to focus on ... little more exciting, this program will introduce the first animations ... along.

    The program begins with the usual: includes ... , b_count[] stores the animation counter that counts from the rate ...
    Alcoholics Anonymous Alcoholics Anonymous May 2006 Development
  • MAME on the Spectrum?Yes, I know it's currently AY's job to make ludicrous posts (a position he's filling in very well, until TKRAP returns), but just out of interest, if…

    ... be changed, without changing any program logic.

    [QUOTE]
    interrupt handling and display drawing routines ...
    obo obo May 2006 Emulators
  • Sprite adviceHello. So, I'm slowly getting to grips with Z80 assembly - currently equal parts frustration and enjoyment. Now looking for some advice to help shift…

    ... number from the memory refresh counter. Only problem is that if ... book for the Freeway frog program.

    2/ I have ...
    48K 48K May 2006 Development
  • Z80 vs. 8080.[QUOTE=obo]... because 8080 is pretty much just a cut down Z80.[/QUOTE] Really? So what's been cut, and why? Hang on, didn't the 808 evolve from the…

    [QUOTE=wilsonsamm]will an 8080 program run on a Z80?[/QUOTE]< ... instructions on the bus at interrupt time. I suppose that's ...
    obo obo June 2006 Hardware
  • What should I get??I want to add a Spectrum to my collection but having come from the Atari/Commodore/TI/Apple world, I am a little unsure what to get? Something that …

    ... multiface (or a +D resident program, I seem to recall), you ... cassette recorder lacks a tape counter (ridiculous!), and the 48K copyright ...
    ewgf ewgf June 2006 Hardware
  • Checksum RoutinesHi there everybody, Does anyone have an 'off the shelf' assembler routine for generating checksums? Thanks Jim

    ... BASIC program did not give the correct result with the counter looping ...
    Geoff Geoff June 2006 Development
  • Checksum RoutinesHi there everybody, Does anyone have an 'off the shelf' assembler routine for generating checksums? Thanks Jim

    ... BASIC program did not give the correct result with the counter looping ...
    Dunny Dunny June 2006 Development
  • Loading schemes18 years ago I hated loading schemes like Alcatraz and Speedlock because they were a b*tch to copy and became unreliable when the tape got older. Now…

    ... game. There is also a counter and when it finishes loading ... to load the Screen$... a program to generate the new screen ...
    Tom-Cat Tom-Cat July 2006 Games
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... have written a program that depends on the frame counter being set ... explaining why - e.g. "This program incorporates an accurate clock, however ... be utterly useless in a program.

    NEW in a ... program? Unless I had promised to ...
    emleymoor emleymoor July 2006 Sinclair Basic
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... have written a program that depends on the frame counter being set ... explaining why - e.g. "This program incorporates an accurate clock, however ...
    Philip Kendall Philip Kendall July 2006 Sinclair Basic
  • R Register, Contended RAM and ClonesHi. I've had a quick look at the CSS FAQ but didn't spot quite what I'm looking for (also the CSS FAQ doesn't have much detail of the clones - there …

    ... - it is triggered by vertical interrupt, which must have exact and ... is actually simple 7-bit counter. It increases after each instruction ...
    piters piters July 2006 Development
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... portion of a program so that the program could run on ... (just the C program, not the associated basic program).

    ... commands will mess with the interrupt mode and state. BEEP for ... Speech is voiced while the program runs. The currah requires 6 ...
    Alcoholics Anonymous Alcoholics Anonymous July 2006 Sinclair Basic
  • Lesser used BASIC commandsAre there any interesting articles or books that explore some of the lesser used BASIC commands/functions e.g. DEF FN, IN, OUT etc? The Spectrum BAS…

    ... portion of a program so that the program could run on ... (just the C program, not the associated basic program).

    ... commands will mess with the interrupt mode and state. BEEP for ... Speech is voiced while the program runs. The currah requires 6 ...
    na_th_an na_th_an July 2006 Sinclair Basic
  • ZXLFN - storing tape header in a long file nameHi lads ;) Couple of months ago, the group of guys interested in divIDE software development has came up with an interesting idea - store tape heade…

    ... You have three files. One program, one Screen$, one CODE block ... user wants to load the program. The program is no longer on ... use MERGE.

    The program uses a LOAD ""SCREEN$ command ... current directory and increment the counter used to store the ...
    Dunny Dunny July 2006 Emulators
  • for a stupid: what?s NMI?erhm, yes, I?m not familiar with it... :rolleyes: I know the function of a hardware ?snapshot? button from Didaktik M/Kompakt, but I?m not familiar…

    NMI stands for Non Maskable Interrupt (what that means I don't know :-P)

    I believe it's used on these add on interfaces to break out of the program running on the spectrum and run routines from the interfaces rom (but don't quote me on that)
    guesser guesser August 2006 Hardware
  • Pimp my code...Erm, this is just the result of a mental exercise - I wanted to repeatedly display a UDG but decided against using a ROM routine and UDGs! Any sugges…

    ... . LDI does supply a byte counter function that if added to ... the impact of the byte counter:

    [code]

    interrupt.
    Alcoholics Anonymous Alcoholics Anonymous August 2006 Development
  • z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…

    ... much adds 2k to your program's size. puts_cons, on ... up because in your program you make use of ... relies on the Basic interrupt routine to scan the ... only read once each interrupt and only a single ... is because Basic's interrupt routine scanned the keyboard and ...
    Alcoholics Anonymous Alcoholics Anonymous August 2006 Development
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... liked to make. Polled or interrupt modes.

    * An ... a small buffer. Polled or interrupt modes.

    * All ... /> * Add adjustable ULA interrupt so that it could interrupt on a specific ... blocks with the ability to program any memory page into ...
    Alcoholics Anonymous Alcoholics Anonymous October 2006 Sinclair Miscellaneous
  • The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…

    ... liked to make. Polled or interrupt modes.[/quote]
    I think ... a small buffer. Polled or interrupt modes.

    * All ... Add adjustable ULA interrupt so that it could interrupt on a specific ... blocks with the ability to program any memory page into any ...
    JamesD JamesD October 2006 Sinclair Miscellaneous
  • Scrolling Loader CounterPlease can someone help me with writing a scrolling counter for a loading system. I like the Hewson counter so i`ve taken the font from zynaps loade…

    ... could only manage a basic counter program with udg`s. It runs ... a simple counter first and then scrolls the ... .frank74.homecall.co.uk/counter.tap]Basic Counter[/url]
    Are there ...
    FrankT FrankT November 2006 Development
  • Scrolling Loader CounterPlease can someone help me with writing a scrolling counter for a loading system. I like the Hewson counter so i`ve taken the font from zynaps loade…

    ... program knows to poke the bottom line address+x for the counter ... if the counter is flashing.
    < ... Basic Instructions:
    Position 1st counter(q,a,o,p) and ... compressed screen
    Position 2nd counter. (For when game is loading ...
    FrankT FrankT November 2006 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…

    ... overlaps with the basic program. I will have to ... cannot play tunes while your program runs -- BEEP is ... any track via this program and load on a ... are written assuming a 50Hz interrupt -- when played on a ... does not include the interrupt routine that must call ...
    Alcoholics Anonymous Alcoholics Anonymous 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…

    ... sinclair based I used to program before was TK85, a ... what you have said, program will not run while ... does not include the interrupt routine that must call ... that. What is this interrupt routine to load the songs ... right a siimple basic program on BASIC64 and save ...
    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…

    ... using soundtracker (the spectrum program) probably out of habit.< ... and compensating for the different interrupt rates. When AY chip ... that. What is this interrupt routine to load the songs ... interrupt service routine can do that for you while your basic program ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Games
  • ZX OS'es: really useful? eg. ZX Spectrum OS, "Doors" by Aqua[url]http://www.snakeoillabs.com/2005/10/30/8-bit-guis-eye-candys-not-just-for-the-32-bit/[/url] I know bunch of OSes around like those, are those O…

    ... a buggy or ill-behaved program. I suspect that's what ... a timer on the NMI interrupt. Protection of the kernel is ... 's memory space on NMI interrupt and only allowing user programs ... was made by the user program).

    What is missing ...
    Alcoholics Anonymous Alcoholics Anonymous November 2006 Sinclair Miscellaneous
  • 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…

    ... a ts2068 LROS target (cartridge program) that would have code starting ... timer that generates a programmable interrupt. This can be very simple ... you could get it to interrupt half way down the screen ...
    Alcoholics Anonymous Alcoholics Anonymous December 2006 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... top 16k), as does the interrupt routine -- these two things are ... to addresses) in my assembler program? For instance, i would like ... every single thing available (your program would be about 200k long ... develop very quickly but the program size will be larger and ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... . I`ve written a basic program that uncompresses the map data ... sure how to write a program to compress the data in ... /> dpos is just a byte counter through the uncompressed screen bytes ...
    48K 48K February 2007 Development
  • Speed of variables vs. POKE/PEEKGreetings, I'm sure I could probably find this out after careful study of the 48K ROM disassembly, but I was wondering whether someone already knew …

    ... !

    I do have program that does DOS emulation - it ... could read out the frames counter before and after.
    48K 48K March 2007 Sinclair Basic
<1…12131415161718…34>

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