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<1234567…34>
  • trying to read keyboardI have the speccy in interrupt mode 1 I used 'IM1' in assembly language then Im printing the contents of memoryu area 23560 to the screen: [quote] l…

    ... /> ld a,#2 ;channel2
    call #5633 ;open channel



    call #6683;print whatever is in register ...
    slenkar slenkar August 2013 Development
  • how to load machine codeI'm reading Jon Caldwell's how to write Spectrum games but can't enter the code! Here's an example:_ LD BC, (score) Call 6683 I tried putting…

    ...
    LD BC, (score)
    Call 6683

    I tried putting ...
    mik3d3nch mik3d3nch November 2016 Sinclair Miscellaneous
  • What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…

    ... way for a bit
    call 6683 ;print bc
    ld a ... /> ld (5C3Ch),a
    ;
    call WrtMsg
    defm 16,4 ... ]
    ld a,2
    call 5633 ;as in Johnathan Cauldwell ...
    xyzzy xyzzy January 2010 Development
  • What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…

    ... way for a bit
    call 6683 ;print bc
    ld a ... redundant too, providing the call to 6683 doesn't destroy the BC ... /> ld (5C3Ch),a
    ;
    call WrtMsg
    defm 16,4 ...
    Chris Pile Chris Pile January 2010 Development
  • What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…

    ... way for a bit
    call 6683 ;print bc
    ld a ... redundant too, providing the call to 6683 doesn't destroy the BC ...
    xyzzy xyzzy January 2010 Development
  • Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …

    ... />
    ld bc,(score)
    call 6683
    R-Tape R-Tape June 2011 Development
  • Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …

    ...
    ld bc,(score)
    call 6683[/QUOTE]

    Hey, ... 1 ; lower screen
    call 5633 ; open lower channel< ... of string in bytes
    call 8252 ; print it
    ... /> ld bc,(score)
    call 6683
    jp GameLoop
    ...
    ooze48k ooze48k June 2011 Development
  • Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …

    ... ,1 ; lower screen
    call 5633 ; open lower channel
    call 8252 ; print it
    ...
    RST 16 ;FAST CALL, don't know full details ... ;
    ld bc,(score)
    call 6683
    jp GameLoop
    score ...
    R-Tape R-Tape June 2011 Development
  • Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …

    ... ,1 ; lower screen
    call 5633 ; open lower channel
    call 8252 ; print it
    ...
    RST 16 ;FAST CALL, don't know full details ... br /> ld bc,(score)
    call 6683
    jp GameLoop
    [/CODE ...
    ooze48k ooze48k June 2011 Development
  • Print TextHow do i print text on the bottom left row(memory location in attribute 23295) of the screen in assembly? I understand the parts better on paper and …

    ... colour system variable
    call 3503 ;ROM routine to clear ... 1 ; lower screen
    call 5633 ; open lower channel< ... of string in bytes
    call 8252 ; print it
    ld bc,(score)
    call 6683
    jp GameLoop
    ...
    R-Tape R-Tape June 2011 Development
  • Move objectHi again, I am using paper colors to represent game objects. I have a "paddle" that is 4 pixels wide. I save its position as a 2 byte word in memory…

    ... 1 ; lower screen

    call 5633 ; open lower scrren channel ... string in bytes

    call 8252 ; print it
    < ... br />
    RST 16 ; fast call

    ld bc, ( ... score into hl

    call 6683

    jp GameLoop ; ...
    ooze48k ooze48k July 2011 Development
  • Move objectHi again, I am using paper colors to represent game objects. I have a "paddle" that is 4 pixels wide. I save its position as a 2 byte word in memory…

    ... 1 ; lower screen

    call 5633 ; open lower scrren channel ... string in bytes

    call 8252 ; print it
    < ... br />
    RST 16 ; fast call

    ld bc, ( ... score into hl

    call 6683

    jp GameLoop ; ...
    ooze48k ooze48k July 2011 Development
  • PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…

    ... ,1 and multiply by 100. 6683 is the rom routine you ... a,2 ;upper screen
    call 5633 ;open channel
    ;
    call 6683 ;rom routine that prints the ... ,l ;make bc=hl for call 6683 on return
    ret
    R-Tape R-Tape August 2012 Development
  • PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…

    ... ; bottom to lines channel
    call 5633
    ld a,22 ...
    ld bc,(40002)
    call 6683
    ld a,6
    daveysludge daveysludge August 2012 Development
  • PRINT a numerical value i.e. the scoreHow do you fo about printing a numerical value using the print routine in the ROM? For instance I have a value 0-255 and want to PRINT the result at…

    ... bottom to lines channel
    call 5633
    ld a ... ld bc,(40002)
    call 6683
    ld a,6
    call 5633

    ld ... br /> ld bc,(40002)
    call 6683

    ld a,48 ...
    ub880d ub880d August 2012 Development
  • trying to read keyboardI have the speccy in interrupt mode 1 I used 'IM1' in assembly language then Im printing the contents of memoryu area 23560 to the screen: [quote] l…

    [QUOTE=slenkar]call #6683;print whatever is in register ... /> That doesn't seem right. 6683 = 0x1A1B which is the OUT ...
    ld b, #0
    call #6683
    [/CODE]


    u6c87 u6c87 August 2013 Development
  • Print (to screen) avalue held in a register pairHi guys, looking for a routine that will print any value from 0 to 65535 to the current position on the screen. I once heard that there was a PRIN…

    ... /> [code] ld bc,(score)
    call 6683[/code]

    and this ... /> [code] ld bc,(score)
    call 11563 ; stack number in bc ... .
    call 11747 ; display top of calc ...
    Sokurah Sokurah October 2016 Development
  • Anybody play Call of Duty Modern Warfare 2 or Battlefield 1943 on xbox 360 online?Any spec-chums play call of duty modern warfare 2 or battlefield 1943 for xbox 360 online? I was thinking maybe we could organise a big spec-chum sh…

    Any spec-chums play call of duty modern warfare 2 ...
    BigBadMick BigBadMick March 2010 Chit chat
  • [tune] 'call the cops'[url]http://soundcloud.com/user2316397/def-chris-call-the-cops[/url] a drum&bass tune I'm working on, it's nowhere near finished and I'm a bit stuck…

    ... ://soundcloud.com/user2316397/def-chris-call-the-cops[/url]

    def chris def chris May 2010 Chit chat
  • Gmail Call phoneUsing a dongle, I just noticed this on Gmail tonight. Call another UK landline, or India, for 2p a minute. Mobiles 10p a minute. Well I put 10 qui…

    ... on Gmail tonight.

    Call another UK landline, or India ...
    Geoff Geoff August 2011 Chit chat
  • What do you call things?I'm just having a Peter Kay moment, these are things i call things, generic terms rather than the actual thing. Stereo (my hifi seperates) The big l…

    ... moment, these are things i call things, generic terms rather than ... hoover, other vaccuum cleaners we call it too lol)

    mel the bell mel the bell March 2012 Chit chat
  • HMV expected to call in administrators within hours[url]http://www.telegraph.co.uk/finance/newsbysector/retailandconsumer/9801487/HMV-expected-to-call-in-administrators-within-hours.html#[/url] sad b…

    ... /retailandconsumer/9801487/HMV-expected-to-call-in-administrators-within-hours.html ...
    mel the bell mel the bell January 2013 Chit chat
  • BT's free call blocking serviceI just discovered this by accident. BT Call Protect is free and block's calls that are on either BT's own blacklist of nuisance callers or on your ow…

    ... discovered this by accident. BT Call Protect is free and block ... dialling 1572 or via the Call Protect page on the MyBT ...
    Battle Bunny Battle Bunny December 2016 Chit chat
  • Is it possible to run a single BASIC line via a ROM CALL of the Standard ZX 48k ROM?On: https://cygnus.speccy.cz/popis_trdos-assembler.php I found the following code: [code] CHADD equ 23645 ; Location of SOS variable CHADD ld…

    ... points to our routine
    call 15619 ; ENTER TRDOS SAVE via ... /> ld (CHADD),HL ; changed.
    call 15619
    BACK ld HL ... or adress LOAD via a CALL to TRDOS/Betadisk-ROM (15619 ...
    Luzie Luzie October 2019 Development
  • What Z80 development tools do you use? What books?Hi. I've been meaning to do it for over 25 years, but.. better late than never :) I'm starting to learn machine code and am trying to get a developme…

    ... redundant too, providing the call to 6683 doesn't destroy the ... br /> [/QUOTE]

    Alas 6683 [$1A1B] preserves most registers apart ...

    PRINT USR 6683 outputs 668365526

    The ... first 6683 is printed in machine code ...
    Geoff Geoff January 2010 Development
  • Adventures Inchi! I'm a BIG fan of adventures. I have a huge collection of them on my PC. By this I mean of course, games for Speccy, Amstrad, C64, Atari ST AND …

    ... fiction as they seem to call it now) freak, u have ...
    Arjun Arjun April 2001 Emulators
  • the thoughts of chairman sharopolisSo anyway, I was just wondering, is there enough like minded souls here to form any kind of 8-bit revivalist communist insurectionary group here or w…

    ... /> I was thinking we should call ourselves the Sinc Cong. Our ...
    Sharopolis Sharopolis April 2002 Sinclair Miscellaneous
  • Spectaculator 2.0 availableHi, I've just released a new version of Spectaculator. It should be on WOS in a few days. Here's a cut 'n' paste from comp.sys.sinclair: Spectacula…

    ... types like Direct Recording,
    Call sequence, Select and Message blocks ...
    Jon Needle Jon Needle April 2002 Emulators
  • Maybe I'm just weird......but I love looking thru the old adverts for speccy games with their little order coupons for you to fill in, or a phone number to call with your a…

    ... , or a phone number to call with your access/barclaycard number ...
    Anonymous Anonymous July 2002 Games
  • forbidden planet..ok heres an odd one thats always puzzled me. I wonder if anyones got any more info... I go to my local game shop, and i buy an orignal copy of forb…

    ... are reading this then please call this telephone number and talk ...
    Sard Sard September 2002 Games
<1234567…34>

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