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Search Again :: Adv Search 1000 results in 0.118s
<1234567…34>
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... br /> ; Prints characters directly to screen bypassing ROM calls

    ; Set attribute
    ; -------------
    PUSH HL ... br /> LD A,H ; Convert to attribute address
    RRA
    ... (HL),A ; Set screen attribute
    POP HL ; Get ...
    Jonathan Harston Jonathan Harston November 2010 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... br /> ; Prints characters directly to screen bypassing ROM calls

    ; Set attribute
    ; -------------
    PUSH HL ... br /> LD A,H ; Convert to attribute address
    RRA
    ... (HL),A ; Set screen attribute
    POP HL ; Get ...
    Jonathan Harston Jonathan Harston November 2010 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... the attribute address and writing the attribute, the attribute address is converted to the ... later
    LD A,D ; Convert to display address
    RLA
    LD A,H ; Convert to attribute address
    RRCA
    RRCA ...
    Jonathan Harston Jonathan Harston June 2012 Development
  • Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …

    ... later
    LD A,D ; Convert to display address
    RLA
    LD A,H ; Convert to attribute address
    RRCA
    RRCA ... instead
    LD A,D ; Convert to display address
    RLA
    Baggers Baggers June 2012 Development
  • Convert x,y to Attribute Address in AssemblyWhat is the fastest way, given x,y (in hl) to return the attribute address?

    What is the fastest way, given x,y (in hl) to return the attribute address?
    robpearmain robpearmain December 2005 Development
  • bitmap address to attribute addressI've searched, but I don't seem to find the proper keywords. I have a bitmap screen address in DL, character aligned (the address of the top byte of…

    ... , but I don't seem to find the proper keywords.
    to get the corresponding attribute address fiddling with ... , but I can't seem to find it!
    na_th_an na_th_an November 2013 Development
  • How do I convert a .z80 snapshot to a tape file?I've been fiddling with this for a while but can't get it to work reliably. I use Marvin to write short BASIC and assembly programs that uses .z80 in…

    ... but can't get it to work reliably. I use Marvin ... to write short BASIC and assembly ... in 48k mode. I want to convert to .tap somehow and had it ... 't get it to work again. I need to save the BASIC ...
    ivanb303 ivanb303 November 2017 Emulators
  • ZY10, a tool to store and display some small bitmapped imagesZY10 Builder ============ Download at: https://www.sendspace.com/file/rncgbo ZY10 is a file format/tool to store some small images on the Spec…

    ... image, then let it convert to a spectrum format, and ... 252 Bytes - Assembly code to use to recall the images.
    < ... call 49158

    256 - to the end - 14 screens of ... *8 pixel data + 16*8 attribute data)
    ===============

    Timmy Timmy November 2018 Development
  • Converting Final Fantasy 1 to the Speccy...Hi all! Although I've not been at Spectrum BASIC for a long, long time (and so have forgotten a lot as well as most of the important memory addresse…

    ... (the very old one) to the Spectrum, and perhaps ... I'm still trying to suss out the game ... am digging out the graphics to convert to the Spectrum. I'll ... be using Soundtracker to make a rendition of the ... probably be disk-only to avoid the headaches with tape ...
    jamyskis jamyskis November 2003 Games
  • tips on optimizing assemblyI wrote a small routine to rotate right a whole screen character line complete with attributes. This is my third ever assembly routine, so I guess i…

    ... linea defb 0 ; char row to be scrolled

    ... the right address
    ; convert to attributes (thanks Alvin Albrecht):
    to the 1st attribute.

    ... a, (hl) ; bring 1st attribute in row.
    ld e ...
    na_th_an na_th_an November 2006 Development
  • In the Dizzy games, I used to like......standing on a black background between two red pieces of scenery, so that Dizzy's body was white and his gloves were red, just as they should have…

    ... should have been. All thanks to attribute clash.

    There, I ... , but I felt I needed to.
    MattLamb MattLamb November 2008 Games
  • Post your best SCRs - Image to ZX Spec 1.0.1 and beyondI've been playing around with Image to ZX Spec's encoding algorithms and I've achieved a "half colour" floyd steinberg mode, that it, the image is pa…

    ... playing around with Image to ZX Spec's encoding ... . The first step is to convert to black and white, then ... .

    Compared to version 1.0 modes the ... 8x8 colour - I have to start somewhere :) [/Edit][/B ... be a bit difficult to determine without some sort ...
    brownb2 brownb2 June 2009 Development
  • Can I load directly from tape to emulator?I've been trying to preserve [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0024371"]this MIA[/URL]. I've recorded it to WAV using audacity. …

    I've been trying to preserve [URL="http:// ... /> I've recorded it to WAV using audacity. Then ... there was a way to play the tape and ... time I've tried to preserve a tape, so ... didn't manage to find out how to load a ... possible?

    Now to convert to TZX...
    Hairy Hairy March 2010 Emulators
  • How to use Spectaculator 7.01 for BASIC ?It does not work for me. Problems with the keyboard - in 48 and 128 Mode. Nor can I move downwards with the "Down-Arrow" from: 128 TAPE LOADER 128 BA…

    ...
    My prime idea was to use my registered Spectaculator for ... BASIC programming, but it seems to be some fault with the ... I have the same problem to find the right key :-(
    to convert to ?
    Tommy F-H Tommy F-H December 2011 Emulators
  • Decimal to Binary stringHi all, Anyone got a less labour intensive BASIC routine than this? Example:- take 170 and convert to a string "10101010" take 4 and convert to a s…

    ... Example:-
    take 170 and convert to a string "10101010"
    take ... 4 and convert to a string "00000100"
    < ... my prog (not shown) to TAP but there's ... FN which won't convert....so am stuck with ... /> 1040 FOR l=126 TO 0 STEP -1
    ...
    IanJ IanJ August 2014 Sinclair Basic
  • 2x2 tile to attribute blocksHow do you go about converting a 2x2 tile to 16 x 16 attributes? Heres an example of the tile data I'm wanting to enlarge. [code] defb 255, 25…

    ... about converting a 2x2 tile to 16 x 16 attributes?
    to enlarge.

    [code]
    daveysludge daveysludge September 2016 Development
  • Text file to BASICHi, Is there anything available for Windows or Linux which lets me enter BASIC in a text file and convert to a .TAP file. I seem to recall somethi…

    Hi,

    Is there anything available for Windows or Linux which lets me enter BASIC in a text file and convert to a .TAP file. I seem to recall something being mentioned in the past, but I can't find it via search.

    Thanks
    jonesypeter jonesypeter January 2017 Sinclair Basic
  • Scrolling loader counter in 85 T-States?Would it be possible to write a scrolling loader counter in 85 T-States? I have a custom screen load routine that loads attribute first, then the …

    ... square. Loads in attribute order. Routine to convert normal screen to this format:
    ld a,h ; convert attribute to screen address
    rlca
    attribute address
    ld a, ixh ; 08ts ; Convert to screen address ...
    FrankT FrankT February 2017 Assembler
  • What is it exactly about that Spectrum that you like so much?I'm sure that most people here will agree that there's something very special about the Speccy, thats why we visit WOS afterall... But what why has i…

    ... so it seems, which leads to it's quirky colour pallette ... ... attribute clash for instance.

    But really, I'm a convert to ... fact that people care enough to develop such good and original ...
    Shaun.Bebbington Shaun.Bebbington May 2006 Games
  • Reason for strange display layout?I have always wondered if there is any technical reason behind the strange layout of the display file or why did Sinclair choose to do it this way?

    ... 8x8 character square (as in attribute square, if you see what ... how the display addresses map to TV display position with this ... by one indicating you move to the right one character ... down by single pixels, convert from pixel coords to attribute coords, etc. is ...
    Alcoholics Anonymous Alcoholics Anonymous April 2007 Development
  • Announce: BASin r14b availableHere's the fix mentioned earlier for those of you that either are too lazy to update your OS (XP SP2 has been out aaaaages, Arjun!) or even junk that…

    ... I'd upgrade to v14b to see what the new ... field from DATA decimal to "Send to memory" (help file ... The bottom field then changes to "Address". I type in ... address. I then quickly convert to decimal and type in ... better attribute control. I will just have to see ...
    Jimmy Jimmy May 2008 Emulators
  • Announce: BASin r14b availableHere's the fix mentioned earlier for those of you that either are too lazy to update your OS (XP SP2 has been out aaaaages, Arjun!) or even junk that…

    ... field from DATA decimal to "Send to memory" (help file ... The bottom field then changes to "Address". I type in ... address. I then quickly convert to decimal and type in ... might also want to send that to me (I'll ... better attribute control. I will just have to see ...
    Dunny Dunny May 2008 Emulators
  • Using ATTR detection in machine codeIs there a ROM routine that can be called that reads the ATTR value of a co-ordinate?

    ... that would convert an x,y into a screen attribute address ( ... routine to convert x,y from horiz & vert coord to attribute address ... ld a,(vertical_coord) ;number 0 to 24 down screen
    cp ... with hl pointing at screen attribute address
    ;
    ...
    R-Tape R-Tape January 2012 Development
  • Microhobby's Pixel A Pixel compo: help requiredHi! The start of this story is described in this topic: [url]http://www.worldofspectrum.org/forums/showthread.php?t=38955[/url] At the present mome…

    ... monochrome picture.
    1. Convert an image to a CMYK in "Image ... image most close to the start of color attribute. Set "X start ... /> Each start of a new attribute is marked by a green ... set precisely.
    7. Click "Convert" to see the result ZX image ...
    moroz1999 moroz1999 May 2012 Sinclair Miscellaneous
  • Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…

    ... of background colour whatever the attribute byte indicates it should be ... info between cogs and to use to mirror some of the ... couldn't work out how to convert the attribute bytes fast enough. It ... seemed less complicated to use 2 ...
    Basher Basher September 2013 Hardware
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... call next_2num ; co-ords to calculator stack
    ; ... of
    and %11100000 ; attribute
    xor b ; address< ... ld a, (hl) ; attribute byte to A
    jp stack_a ; ... not
    call dec_to_fp ; convert to floating point

    chev chev October 2013 Development
  • SE Basic IV Buffy v4.1 source (WIP)I've been doing a major refactor on the SE Basic source and I'd appreciate a code review from anyone who has time to look at it. I've almost certainl…

    ... (hl), a ; set attribute byte
    dec c ... br /> sub 24 ; convert to real line

    chev chev November 2013 Development
  • Character Based SpritesHi, I'm working through Jonathan's excellent guide to writing games, and have mastered the animation of single UDGs. Before or move onto Pixel…

    ... /> call screen2att ;find corresponding attribute
    call colour_tile
    ... ;change DE at screen to DE at attribute

    ... e=x (0-31),convert to corresponding char square on ...
    nextlinedn ;converts DE to next line down, modified from ...
    daveysludge daveysludge July 2016 Development
  • How to take SCR out of multicolour games?Emulators do not seem able to take scr out of Nirvana games correctly. I have tried SpecEmu, Speculator and Jspeccy. Try to save El Stompo or SunBu…

    ... PAPER and hidden pixels due to attribute settings etc.

    ... colour toggled for any attribute which should have the ... , the archive system would convert each uploaded file into a ... Someone would have to write a tool to convert a Spectrum file ...
    Einar Saukas Einar Saukas December 2016 Emulators
  • Getting the ball rolling againOkay things have been a bit stale in comparison to what this forum used to be like. Too many fallouts and it is getting harder to think of new threa…

    ... stale in comparison to what this forum used to be like. Too ... and it is getting harder to think of new threads.
    to the big screen i.e ... producer, what Speccy game to you want to convert to the big screen and ...
    GeeKay GeeKay February 2002 Games
<1234567…34>

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