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Search Again :: Adv Search 1000 results in 0.014s
<1…14151617181920…34>
  • IF2 Rom snapshot creationHi, is it possible convert a Speccy 16k snapshot to a Interface 2 Rom file? I've the original Ultimate Pssst, Cookie, Trans-am and Jetpac tapes and …

    ... br /> CALL prmsg
    DEFM "BASIC program decoded."
    DEFB $0D ...
    LD BC,$0009
    LDIR ;copy starting bit of relocation ... /> LD BC,$000A
    LDIR ;copy across code to decompress ...
    LD BC,$1B00
    LDIR

    loadptr:
    ...
    Jimmy Jimmy April 2008 Emulators
  • FAST and SLOW .TAP loading in RESIDOSWhy is in RESIDOS this TAP file loaded always too slow ? (with lines in border area). Other TAP files on my drive is fast loaded, but loading this fi…

    ... ?!), you could just do an LDIR from the ROM.[/QUOTE]
    BASIC and you don't have ... or time to POKE the LDIR routine right into memory, you ...
    Factor6 Factor6 May 2008 Development
  • FAST and SLOW .TAP loading in RESIDOSWhy is in RESIDOS this TAP file loaded always too slow ? (with lines in border area). Other TAP files on my drive is fast loaded, but loading this fi…

    ... you like (hacked versions of BASIC such as this, or Interface ... is wanted, then a simple LDIR can be used to copy ...
    glancaster glancaster May 2008 Development
  • 'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…

    ... to do it built into basic or some quick way to ... wanted to do it in basic. In the end I did ... areas of memory and then ldir-ing them to 16384 and ...
    mulder mulder August 2008 Sinclair Miscellaneous
  • 'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…

    ... didn't exist. With 128K BASIC, who knows what obscure commands ... around RAM using LDIR as you say, since BASIC is too slow ... be done well enough in BASIC for most applications I would ... the second screen using ordinary BASIC PRINT and graphics commands. Until ...
    Digital Prawn Digital Prawn August 2008 Sinclair Miscellaneous
  • WoS Sinclair BASIC page updated[url]www.worldofspectrum.org/sinclairbasic[/url]

    ... do it if ASM and Basic combination works perfectly (This is ... can do anything in Sinclair Basic too (like anything else you ... memory in Basic can take very long time, and LDIR is faster ... to take advantage of using Basic to code very fast, and ...
    LCD LCD October 2008 Sinclair Basic
  • Question about digitized sound and videoI searched the forums and couldn't find the answer, so here it goes. Regarding digitized sound: I remember reading an article long ago about a vid…

    ... pre-empted this conversation about LDIR :-) The trick is to have ... some graphical glitches - with the basic delta algorithm, you can't ...
    gasman gasman November 2008 Development
  • Using INPUT without clearing last two lines of screen?I'm trying to print to the 22nd row of the screen using the ol' print #0 trick. Unfortunately, I require user INPUT which seems to wipe out the botto…

    ... br /> ld bc,256
    ldir
    ld hl,20928
    ld bc,256
    ldir
    ld hl,21184
    ld bc,256
    ldir[/CODE]


    [CODE ... br /> ld bc,256
    ldir[/CODE]

    I haven ... MC what I do in Basic with FOR / NEXT. That's ...
    zxbruno zxbruno January 2009 Sinclair Basic
  • Help to run Abu Simbel in a +2A SpectrumI bought this game some weeks ago, but the version is the old one. When I loaded it in the emulator, I had to switch the keyboard issue to 48Kissue.…

    ... /> -Some code stays near Basic area and does the following ... /> ld de,65361
    ldir
    scf
    ld ... going to create a new Basic loader, it should:
    Basic loader shouldn't be ... would then use that Basic loader instead of the ...
    zxbruno zxbruno January 2009 Games
  • Help to run Abu Simbel in a +2A SpectrumI bought this game some weeks ago, but the version is the old one. When I loaded it in the emulator, I had to switch the keyboard issue to 48Kissue.…

    ... it to a nice little Basic program.

    The first ... just fake loading for the BASIC block. Headers and non-relevant ...
    LD BC,1200
    LDIR-transfers loader to original address ...
    zxbruno zxbruno January 2009 Games
  • Tape and Disk breakpointsIs it possible to set a breakpoint on a .TAP, .TZX or .DSK file so that the debugger pops up when loading finishes? I'm talking about a breakpoint wi…

    ... not fond of protected BASIC loaders, code blocks with ... nothing like a clean BASIC loader with a clean ... variables and/or the BASIC area, but I can ... just create a small LDIR routine to copy from ... to another (printer buffer, BASIC overwriting, etc.), after this ...
    LCD LCD May 2009 Emulators
  • Rainbow Generator for 48K Spectrum using PUSHThis is what I came up with from [B]gasman[/B]'s suggestions. It's stable in ZXSpin and ZX32 simulating a 48K Speccy. Anyone like to try it on the …

    ... prog equ 0x5c53 ; start of BASIC area
    udg equ 0x5c7b ... /> ld bc, 3071 ;
    ldir ; set remaining 3071 bytes

    ; return to BASIC
    ret

    ; ...
    chev chev May 2009 Development
  • Ultimate! Time WasterThis used to bug me big time 25 years ago.:mad: In the early 16k releases of Ultimate Play the Game , Games Jetpac Cookie Trans am there are three …

    ... /> LD BC, $2000
    LDIR
    JP $61E5
    ... and most likely "damaging" BASIC so you will not ... be able to "return to BASIC".

    It ... this won't crash BASIC, it most likely quickly ... gets overwritten by BASIC and thus may form ...
    BloodBaz BloodBaz May 2009 Games
  • FLASH EPROM programming on ZXExist any other software for rewriting FLASH EPROM or EEPROM chips on real ZX ? I know only: EEPROM flasher for original DivIDE [url]http://85.132.…

    ... 110 ;in fact 106
    LDIR
    RET
    ;------------------------------------------------------------
    ;TO BE POKED from basic!
    ;=========================================================
    source DEFW ...
    roko roko July 2009 Hardware
  • Machine Code Microdrive File LoaderI've been experimenting with transferring games to run from microdrive. Typically I like to see a loading screen while things are happening, and I li…

    ... push hl ; preserve return to basic
    exx
    ;
    basic
    exx
    ;
    ldir
    ;
    xor ... ; ld (d_str1),hl ; basic will have done this for ... ld bc,$0009
    ldir
    ;
    ld ...
    jp jp December 2009 Development
  • Converting games from tap to dskHi to all from Greece, Being an old Speccy user and now owner of most models of Spectrum (48k , 48k+ , 128K, +2 grey and +3) , I desided to salvage m…

    ... /> LDIR
    LD A,(5B5Ch) ; restore the memory paging that BASIC expects ...
    John Elliott John Elliott January 2010 Emulators
  • Converting games from tap to dskHi to all from Greece, Being an old Speccy user and now owner of most models of Spectrum (48k , 48k+ , 128K, +2 grey and +3) , I desided to salvage m…

    ... in usr0 mode (enter +3 basic and type usr0 before loading ... it's set (ie. 128k basic mode) then it looks at ... halfway through the bank move LDIR!!!!

    USR0 mode resets ...
    nuggetreggae nuggetreggae January 2010 Emulators
  • Microdrive Games CartridgeI've just noticed that Ant Attack on the microdrive [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0014815"]Games Cartridge[/URL] (also bundl…

    ... - this seems to be the basic and code lumped together.
    LDIR works you often get copies of BASIC and machine ... 6K was trimmed from the BASIC by using variables for 0 ... if WOS allowed 80-column BASIC listings where helpful with games ...
    Geoff Geoff January 2010 MIA/STP/SDP
  • Why did Ultimate games load like this?What I remember about the early Ultimate games was the unusual way they loaded. You'd get the BASIC bootstrap loader, then a SCREEN$, then a main bl…

    ... , msb=131) and even Sinclair BASIC is quick enough to do ... routine at 23424 does a LDIR so all code is moved ... blocks with POKEs in the BASIC loader. It's quicker than ...
    Jimmy Jimmy February 2010 Games
  • Converting games from tap to dskHi to all from Greece, Being an old Speccy user and now owner of most models of Spectrum (48k , 48k+ , 128K, +2 grey and +3) , I desided to salvage m…

    ... LD BC,04608
    30017 LDIR
    30019 LD A,016 ... LD BC,13824
    30045 LDIR
    30047 LD A, ... LD BC,09216
    30073 LDIR
    30075 LD A, ... LD BC,12000
    30101 LDIR
    30103 LD A, ... /> I think I will quit basic , completely. What are the calls ...
    batsilos batsilos February 2010 Emulators
  • 'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…

    ... 't have to do everything BASIC way. It is easier to ... /> ld (hl),a ;attribute
    ldir[/code]
    Shiru Shiru June 2010 Sinclair Basic
  • 'Hello World' in ASM ?Can someone show how to make the classic 'Hello World' print with ASM code ? I cant figure at this moment how to insert and handle strings with the s…

    ... are internal parts of the BASIC interpreter, and designed solely for ... 've provided is very simple. LDIR is CPU operation which copies ...
    Shiru Shiru June 2010 Sinclair Basic
  • Sprite MaskingI was looking at the sprites in some games, and noticed they have sprite followed by mask. Usually a row at a time (so the mask is sort of interleave…

    ... 't.) :cry:

    The basic idea is, when copying blocks ... block load instructions (ldi, ldd, ldir or lddr) unless you have ...
    ajmoss ajmoss June 2010 Development
  • Machine Code Microdrive File LoaderI've been experimenting with transferring games to run from microdrive. Typically I like to see a loading screen while things are happening, and I li…

    ... /> push hl ; preserve return to basic
    exx
    ;
    ld ... /> pop hl ; restore return to basic
    exx
    ;
    ret ... many jumps to copy
    ldir
    ;
    xor a ; set ...
    ld bc,$0009
    ldir
    ;
    ld l,(ix ...
    jp jp June 2010 Development
  • Problem with PRINT #stream on +128kWorking on a +128k, I want to choose whether all report output goes to screen or printer, so I use PRINT #stream where stream = 2 or 3 for screen or …

    ... I could fix it from BASIC, but that didn't get ... do the equivalent of LDIR/LDDR from BASIC, plus I could save ...
    Battle Bunny Battle Bunny July 2010 Sinclair Basic
  • Common pitfalls and solutionsLet's discuss some of the common problems in Speccy programming, and the methods we use to avoid them. For an example, here is a piece of code that …

    ... /> ;Typing USR 0 in 128 BASIC effectively calls memory address 0x0000 ... .
    ;Since the 48 BASIC ROM is paged in, this ... used to store bits of BASIC
    ;and other banks are ...
    LD BC,4
    LDIR
    RES 4,(IY+01 ...
    BiNMaN BiNMaN August 2010 Development
  • compressing basicI thought I'd ask here instead of the basic forum.. in the sense of giving me 1 command line, and NOT the whole listing joined up etc. and it uncom…

    ... with an LDIR to copy the chunk, as from BASIC either SAVE ...
    Battle Bunny Battle Bunny September 2010 Development
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