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  • Petrol Station FoolsWhy is it that when queueing for petrol pumps at the petrol station that some people will stubbornly not go to the pump if the nozzle is not on the s…

    I've cocked up my calculation haven't I heh
    guesser guesser March 2011 Chit chat
  • Petrol Station FoolsWhy is it that when queueing for petrol pumps at the petrol station that some people will stubbornly not go to the pump if the nozzle is not on the s…

    ... ]I've cocked up my calculation haven't I heh[/QUOTE ...
    rwap rwap March 2011 Chit chat
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... ; clear the carry flag before calculation
    sbc hl, de ; the ...
    chev chev March 2011 Development
  • SE Basic Type-ins^Pete suggested creating a sticky thread for SE Basic discussion. I thought a Type-ins thread might also be useful. Up to the mods if they want to ma…

    ... the carry flag before
    ; calculation
    sbc hl, de ; the ...
    chev chev April 2011 Sinclair Basic
  • New platform game: Sid SpannersHi all, here is my Christmas present. A new platform game (well, more of a mini-game really). [url=http://java.cms.livjm.ac.uk/homepage/staff/cmspc…

    ... purely
    an 8-bit calculation, as it should be.
    Digital Prawn Digital Prawn April 2011 Brand new software
  • Spectrum +3 Help pleaseI bought a +3 from a bootsale today, and when I got it back it didnt work (shock!) However after working out the +5V line on the PSU line was about …

    ... my time in the cost calculation. Next project I will stick ...
    guesser guesser April 2011 Hardware
  • Random numbers...Hi Folks, I am not an expert when it comes to random numbers. If I have the RANDOMIZE statement the beginning of a program and then proceed to gene…

    ... [/B]. The [B]RND [/B]calculation is at the end of ... considerably.

    The RND calculation looks like:

    [FONT ... prefix the [B]RND [/B]calculation with [B]RANDOMIZE [/B]e ...
    Paddy Coleman Paddy Coleman May 2011 Sinclair Basic
  • Something impossible has happened.Scientists have discovered a new force emitting from the core of the Sun. It is responsible for accelerating the decay rate of matter. It has been …

    ... skew age and make the calculation give a younger or older ...
    Jimmo Jimmo May 2011 Chit chat
  • enJine: a fast tilemap enginetile engine based on excellent work by Joffa Smifff. here you can download first tech demo. [url=http://ketmar.no-ip.org/tmp/enJine.tap]Get It Now![…

    ... />
    and i can add attr scrolling, i just don't ... , etc. i'll show 2px/attr scroller soon in Fort Apocalypse ...
    Ketmar Ketmar May 2011 Development
  • Your Views on... GhostbustersI dusted off the Master System version of this and inspired me to try out the Speccy version. It's a good game with it's strong and weak points. I …

    ... should be quicker - a quick calculation shows :

    old code ...
    Jimmy Jimmy May 2011 Games
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... the carry flag before
    ; calculation
    sbc hl,de ; the ...
    chev chev May 2011 Sinclair Basic
  • AY Magic version for ZX81 was bornModified Ay magic ,my previous interface for zx48. On board, ay chip based on Zonx interface but with stereo output and rampack 16 or 32 kilo on boa…

    ... need to do the note calculation.

    So here's ...
    chev chev May 2011 Hardware
  • Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…

    ... use the cycles.

    Calculation: if interrupt occurs 50 times ...
    tstih tstih May 2011 Development
  • Serial protocol, help!Hi, simply trying to find best way to transfer programs from PC to real ZX Spectrum for testing purposes. Under Windows I tried using Spxfr and it w…

    [QUOTE=tstih;539411]Calculation: if interrupt occurs 50 times ...
    Philip Kendall Philip Kendall May 2011 Development
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... run faster by doing this calculation outside the critical section, using ...
    Timmy Timmy May 2011 Sinclair Basic
  • Proportional Print Routine...Hi Folks, Does anyone know of a good proportional printing routine for the ZX Spectrum? Ideally I am looking for something that prints with charact…

    ... the carry flag before
    ; calculation
    sbc hl, de ; the ...
    chev chev May 2011 Sinclair Basic
  • RAND USR that doesn't work in emulators and clonesEons ago, I "discovered" a strange RANDOMIZE USR. This is it: [b]RANDOMIZE USR 46578[/b] Using it on a genuine ZX Spectrum rubber key or Plus model,…

    ... ,265 to
    RegAF equ Attr+3
    RegAFa equ RegAF ...
    lfaria lfaria May 2011 Emulators
  • Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …

    ... THEN RETURN
    415 IF ATTR(x+1,y)>64 ... THEN RETURN
    420 IF ATTR(x,y)7 THEN GOTO ... 260
    425 IF ATTR(x+1,y)7 THEN ... THEN RETURN
    510 IF ATTR(x+1,y+1)> ... THEN RETURN
    515 IF ATTR(x,y+1)>64 ... THEN RETURN
    520 IF ATTR(x,y+1)7 THEN ...
    Jimmy Jimmy May 2011 Games
  • Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …

    ... GOTO 219
    212 IF ATTR(x,y)>64 THEN ... 219
    213 IF ATTR(x+1,y)>64 ... GOTO 219
    214 IF ATTR(x,y)7 THEN GOTO ... 260
    215 IF ATTR(x+1,y)7 THEN ... 229
    223 IF ATTR(x,y+1)>64 ... 229
    224 IF ATTR(x,y+1)7 THEN ... 260
    225 IF ATTR(x+1,y+1)7 ...
    Einar Saukas Einar Saukas May 2011 Games
  • Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …

    ... GOTO 1211
    1202 IF ATTR(x+2,y)=4 THEN ... GOTO 1211
    1203 IF ATTR(x+2,y)=5 THEN ... GOTO 1211
    1204 IF ATTR(x+2,y)=15 THEN ... GOTO 1211
    1205 IF ATTR(x+2,y)=3 THEN ... GOTO 1211
    1206 IF ATTR(x+2,y)=6 THEN ... GOTO 1215
    1209 IF (ATTR(x+2,y)=69 AND ...
    Jimmy Jimmy May 2011 Games
  • Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …

    ... THEN RETURN
    415 IF ATTR(x+1,y)>64 ... THEN RETURN
    420 IF ATTR(x,y)7 THEN [B ... THEN RETURN
    515 IF ATTR(x,y+1)>64 ... THEN RETURN
    520 IF ATTR(x,y+1)7 THEN ... THEN RETURN
    415 IF ATTR(x+1,y)>64 ... THEN RETURN
    420 IF ATTR(x,y)7 THEN [B ...
    Einar Saukas Einar Saukas May 2011 Games
  • Pixel Color IncorrectHello i am new to the ZX Spectrum and z80 assembly language. I am coding my first game and am having a small problem. I am trying to make the botom r…

    What FrankT said.

    You can set the attribute for any combination by using the formula:
    attr = 128*flash + 64*bright + paper*8 + ink

    where, flash = 1/0 (on/off), bright = 1/0(on/off), paper = 0..7, ink = 0..7
    Arjun Arjun June 2011 Development
  • Frank N SteinThis one > [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0001849[/url] Always seems to crash about level 7 (maybe a bit more) or so with an …

    ... /> 8420 IF (r=1 AND ATTR(x,y)
    Jimmy Jimmy June 2011 Games
<1…18192021222324…34>

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