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<1…15161718192021…34>
  • Ideas for speeding up this BASIC routine?This loop can take up to 2 minutes to run, depending upon the content of the screen being scanned, about 70% of that time being taken up by lines 105…

    ... also a list of the USR routine sizes. One other change ... I had to change USR copychar and add USR updatewarray to make ... $="n" THEN POKE 23678,y: LET y=USR toprow:
    IF NOT ... 1082[color=green]
    1052 LET minx=tci[/color]
    1053 ...
    Battle Bunny Battle Bunny October 2012 Sinclair Basic
  • Your Sinclair Smash Tips - Corrected ListingsOver at Hercules' [URL="http://craigsretrocomputingpage.eu5.org/smashtips/index.html"]YS Smash Tips site[/URL] he has a list of hacks that don't work…

    ... REM URIDIUM HACK
    20 LET T=0: FOR N=65000 ... : READ A: POKE N,A: LET T=T+A: NEXT N ... LINES": STOP
    40 RANDOMIZE USR 65000
    50 DATA 55 ...
    jp jp October 2012 Games
  • help needed :) how to rotate a 3 x 3 array 90 degreesI just cant seem to get this sorted in my head ( or on paper ) , I've found multiple examples in C , python , etc but cant find any z80 examples any …

    ... ).
    [code]
    10 LET dims=5: LET m=dims*dims: DIM ... FOR a=1 TO m: LET a$(a)=CHR$ (PEEK (65399 ... a: PRINT
    30 RANDOMIZE USR 65450
    35 FOR a ...
    Battle Bunny Battle Bunny October 2012 Development
  • Converting UDG to 2x2I've got a udg that I want to display in different sizes. Obviously I just print it for normal size, I can use the udg in bin format to display it ea…

    ... br /> 210 FOR f=USR "a" TO USR "u" STEP 8: ... LET b1=PEEK a: LET b1k=b1: LET b2=PEEK (a+1): LET b2k ... 4:
    LET p1=INT (b1/64): LET p2=INT (b2 ... 2:
    LET e=pose-3: LET b1=PEEK b+ ... d+1:
    NEXT b: LET d=5: RETURN
    [/ ...
    Battle Bunny Battle Bunny October 2012 Sinclair Basic
  • smooth movement in basicWas trying to figure this out myself but i would like to be pointed in right direction now :-). How do I make something move in Basic without gettin…

    ... and change line 130 to "LET bc=USR {somewhere}".

    It ... AT by,bx;" ": LET by=by+my: LET bx=bx+mx: PRINT ...
    Battle Bunny Battle Bunny October 2012 Sinclair Basic
  • Any ASM guru can provide me fixes for "Video Olimpycs" and "Travel with Trashman" ?I have these 2 games and have different problems with the +2A model, as you can read in Alessandro?s thread: [url]http://www.worldofspectrum.org/for…

    ... line 10 before the RANDOMIZE USR 27500:
    [code] FOR a ... c=-3): POKE b,c: LET b=b+1: POKE 23620 ... line 10 after the RANDOMIZE USR 27500:
    [code] DATA 28418 ...
    Battle Bunny Battle Bunny November 2012 Games
  • Machine code RST10 problemHello! After 27 years of playing with Spectrums I'm starting to look into doing assembly language properly. All went swimmingly well until I wrote …

    ... loader and a single RANDOMIZE USR call. The loader clears the ... the loader (overwriting the RANDOMIZE USR), so that execution should continue ... I don't want to let it hog the memory any ...
    snigfarp snigfarp November 2012 Development
  • CAT!RAM and PUTRAMLast year sometime I posted a couple of routines to: * catalogue the 128k RAMdisk in BASIC; * move RAMTOP and the stacks from BASIC. CAT!RAM and PUTR…

    ... >49151 THEN LET m=48000: RANDOMIZE 49151+USR m
    ... catalogue: file name
    LET a=a+20: FOR b ... REM error flag byte
    LET d=1: FOR b=a ... & locate header
    LET h=INT f(n,1 ... gt;49151 THEN RANDOMIZE r+USR m
    9951 RETURN ...
    Battle Bunny Battle Bunny December 2012 Sinclair Basic
  • Writing to virtual disks/tapes? (in ZX Spin, please)I have some emulators installed in Windows: Spectaculator 8, ZXSpin 0.7 and Fuse (1.0.0.1). I've been able to save to disks in Spectaculator and fuse…

    ... can be replaced with a USR function to call SA_BYTES or ... LET u=32000: DIM v(3):
    LET a=10: LET b=11: LET ... c=12: LET d=13: LET e=14: LET ... READ v$: GO SUB 1400: LET v(f)=v: NEXT f ... NEXT x: STOP
    1400 LET v=0: FOR z=0 ...
    Battle Bunny Battle Bunny January 2013 Emulators
  • Bugs in Rocky Horror ShowI've been converting this game to disk, and I've found a bug in the game. If you run the 128k version and select "Sinclair joystick" as joysticks, t…

    ...
    30 CLEAR 32767: LET B=1: LET D=32767
    40 ... LET T=0: FOR N=1 ... : STOP
    70 LET B=B+1: LET D=D+N-1 ... Horror Show 128 Tape": RANDOMIZE USR 32768
    90 DATA 221 ...
    jp jp January 2013 Infoseek database
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... " utility for this, but first, let's understand how this is ... (so you can just RANDOMIZE USR to decompress it). And everything ... Manager" utility. It will first let you choose the decompressor version ...
    Einar Saukas Einar Saukas January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... Manager" utility. It will first let you choose the decompressor version ... , $0e, $8f, $39, $96 ;OVER USR 7 ($5ccb)
    ld hl ...
    antoniovillena antoniovillena January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... each block simply using RANDOMIZE USR, as mentioned by Alessandro Grussu ... use as possible. For instance, let's assume the developer decided ... CODE
    15 REM RANDOMIZE USR 50000
    20 LOAD "level2 ... "CODE
    25 REM RANDOMIZE USR 53000
    [/CODE]
    < ...
    Einar Saukas Einar Saukas January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... (y/256)
    1020 RANDOMIZE USR 65535: RETURN
    [/CODE]
    [CODE]
    10 LET x= 40000
    20 LET y= 16384
    antoniovillena antoniovillena January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... /> [CODE]
    10 LET x= 40000
    20 LET y= 16384
    1020 RANDOMIZE USR 65535: RETURN
    [/CODE]
    20 RANDOMIZE USR 65535
    [/CODE]
    antoniovillena antoniovillena January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... 39999
    10 LET x = 40000
    20 LET y = 16384
    1020 RANDOMIZE USR 65535: RETURN

    Did ... assembly language of any kind, let alone try to make an ...
    Alessandro Grussu Alessandro Grussu January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... LOAD""CODE: LOAD""CODE: LET x=40000: LET y=16384: GO SUB ... *PEEK 65529
    1020 RANDOMIZE USR 65535: RETURN
    [/CODE]
    antoniovillena antoniovillena January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... :

    5 LET zx7= 25000
    10 LET x= 40000
    20 LET y= 16384
    1020 RANDOMIZE USR zx7: RETURN

    Here ...
    FrankT FrankT January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... ""CODE
    20 LET zx7= 65408: LET x=46135: LET y=31232: GO ... SUB 1000
    30 RANDOMIZE USR ...
    1010 RANDOMIZE x: RANDOMIZE USR zx7: RETURN
    [/CODE]
    antoniovillena antoniovillena January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... : LOAD""CODE
    20 LET zx7= 65408: LET x=46135: RANDOMIZE 31232 ... : GO SUB 1000
    30 RANDOMIZE USR ...
    1010 RANDOMIZE x: RANDOMIZE USR zx7: RETURN
    [/CODE]
    antoniovillena antoniovillena January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... : LOAD""CODE
    20 LET zx7= 29800: LET x=46135: RANDOMIZE 31232 ... : GO SUB 1000
    30 RANDOMIZE USR ...
    1010 RANDOMIZE x: RANDOMIZE USR zx7: RETURN
    [/CODE]
    antoniovillena antoniovillena January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... /> [CODE]
    20 LET z=VAL "27845": LET x=VAL"28900": RANDOMIZE ... ""CODE
    [CODE]
    30 LET x=VAL "45320": RANDOMIZE VAL ... VAL"23671": RANDOMIZE x: RANDOMIZE USR z: RETURN
    [/CODE]
    antoniovillena antoniovillena January 2013 Brand new software
  • How to check the whole memory on a +2 greyHi everybody!!! I suspect that i have a bad memory chip on my +2 Grey. Does anybody know if exist any utility to check the whole memory? Thanks a …

    ... -5" CODE 28672,532: RANDOMIZE USR 28672
    Reset the computer ... -2" CODE 32768,532: RANDOMIZE USR 32768

    If you ... check the code with:
    LET t=0: FOR a=????? TO ... ?????+531: LET t=t+PEEK a: NEXT ...
    Battle Bunny Battle Bunny January 2013 Hardware
  • Converting games to disk: difficult loadersThis thread has an spanish version in foro speccy, but I haven't gathered enough information to overcome my problems. I've been converting some game…

    ... to. Close the debugger and let the screen load.

    let the game load.

    USR 40960 runs the game.
    USR 40960.

    Done.
    FrankT FrankT January 2013 Games
  • Questions about SEUDI recently purchased SEUD (Shoot-em-up Designer, for those who do not know it) from Cronosoft and tried to familiarize with it, also by peering into …

    ... you call the game with let x=USR... then on returning to ...
    Rebelstar without a cause Rebelstar without a cause January 2013 Development
  • Questions about SEUDI recently purchased SEUD (Shoot-em-up Designer, for those who do not know it) from Cronosoft and tried to familiarize with it, also by peering into …

    ... your game with RANDOMIZE USR 32000, use LET sc=USR 32000. When the ... Apulija-13):

    [CODE]LET w$="": FOR m=sc TO ... sc+5: LET w$=w$+CHR$ (PEEK m ... the VAL function, e.g.: LET score=VAL w$
    Alessandro Grussu Alessandro Grussu January 2013 Development
  • Donkey Kong ReloadedHi peeps On Youtube someone has just made a video response to my best homebrew of 2011 vid,it is a game called Donkey Kong reloaded that they are pro…

    ... and start with RANDOMIZE USR 32000 (LET variable=USR 32000 being used to ...
    Alessandro Grussu Alessandro Grussu January 2013 Games
  • Donkey Kong ReloadedHi peeps On Youtube someone has just made a video response to my best homebrew of 2011 vid,it is a game called Donkey Kong reloaded that they are pro…

    ... and start with RANDOMIZE USR 32000 (LET variable=USR 32000 being used to ...
    gabriele amore gabriele amore January 2013 Games
  • Red DwarfA Red Dwarf video game - good or bad idea? (given its recent resurgence in popularity in the UK) My ideas: [b]Plots[/b] - An interquel which bridg…

    OK, let's go that way. Hopefully, we can avoid having to resort to the USR 0 treatment for this game. However, until I get an email back from Doug Naylor with his decision, there isn't much we can do.
    Swevicus Swevicus January 2013 New game ideas
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