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<1…17181920212223…34>
  • A "generic" loader for +3(e)I've made this loader for 128k games in +3DOS. [CODE]dos_open equ 262 dos_close equ 265 dos_abandon equ 268 dos_read equ 274 dos_write equ 277 dos_s…

    ... ,128
    call dos_set1346
    jp nc,0

    ; open ... ,fichero
    call dos_open
    jp nc,0

    ; repeat ... /> call dos_read ; read block
    jp nc,0

    ; finsi ... that ret changed to a jp ...).
    - I would like to ...
    Zup Zup December 2013 Development
  • Assembly code auto optimiserFor my Finders Keepers Plus project I'm considering writing an Assembly code auto optimiser. Way back when I wrote the original FK I considered optim…

    ...

    [code]
    jp SomeSub
    [/code]

    jp instructions and turn them ... 16 bit vectors directly into jp instructions :)

    ... /> ; ##OPT jp->jr, callret->jp,

    jp function1
    David Jones David Jones December 2013 Development
  • Can any C experts help me - have hit an impasseHere is an excerpt from my attempt to program a Bridge game in C. Can you spot where I'm goiing wrong? I am trying to count the points in each ha…

    ... in each hand (Ace = 4, King = 3 etc) and assign the ...
    bigjon bigjon January 2014 Chit chat
  • Luca Bordoni Lost Treasures....For some reason today I came across Luca Bordoni's name. That ringed a bell so went and checked it out. Luca was the author of one of the most ambiti…

    ... and fun BASIC projects : "Jungle King" which came out in a ... , just to write a "Jungle King" game, but I failed miserably ...
    gabriele amore gabriele amore January 2014 Announcements
  • Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…

    ... h
    dec h
    jp z, l_mulu_16_8x8

    l0_mulu_24_16x8 ...
    Alcoholics Anonymous Alcoholics Anonymous January 2014 Development
  • Selling adviceHello all, Recently had a loft clear out and found a console with 178 games and was hoping you could point me in the right direction to sell. I am…

    ... by Tronix
    American turbo king
    Operation wolf
    Crash ...
    Jasonm Jasonm February 2014 Sales
  • Candy JamIt would appear that King have impressed more than a few game developers of late by trademarking the word candy. To mark this occasion, a few indie …

    It would appear that King have impressed more than a ...
    jonathan jonathan February 2014 Announcements
  • z80 less than and greater thanI am writing a keyboard routine where the pressed key code number is held in A. I only want to action the number key presses 1 to 9 (codes 49-57) so …

    ... is clear? Would it be jp p,loop ?

    The ... A so I do jp c,loop
    jp c,loop
    So the complete code (if jp p,loop is right) would ... ]
    cp a,49
    jp p,loop
    cp a ... ,57
    jp c,loop
    key_checking ; each ...
    Speccy_James Speccy_James February 2014 Development
  • IX register wonderings...***noob alert*** I'm doing a lot of these in my program: ld a,(ix+n) cp 0 jp z I know you can do things like this: dec (ix+n) but can you test …

    ... +n)
    cp 0
    jp z

    I know ...
    Atari_Jetman Atari_Jetman February 2014 Development
  • Ghosts n' Goblins loaderI'm trying to put Ghosts n' Goblins onto a +3 disk but struggling to understand the mc loader. Basic loader [code] ink 7 : clear 25000 : load "" cod…

    ... : LD B, 176
    65174: JP NC, 65163

    < ... /> 65351: CALL 65447
    65354: JP NC, 0
    65357: LD ... LD B, 176
    65421: JP NC, 65410
    65424: LD ... 65432: CP 2
    65434: JP NC, 0
    65437: LD ... LD (HL), B
    65533: JP PE, 60016[/code]
    Speccy_James Speccy_James February 2014 Development
  • Venturespeak Helplooking at the code from ZX Computing, October, November & December 1986. How do I make the code do more then 3 letters say 5. and could it be made …

    ... CP 002
    60033 D232EB JP NC,TIMEUP
    60036 3A085C ... CALL PROMPT
    60195 C378EA JP WAIT

    60198 3E16 ... RST #10
    60280 C360EB JP HERE

    60283 3A9BEB ...
    ardentcrest ardentcrest February 2014 Development
  • opiinions requiredI'm currently writing a science/fanasy tale with the theme being based on the sins of the father being passed down onto the daughter (Jeremy Kyle'd h…

    ... Several years ago, before a king met his future queen, he ... the circumstances the former king didn't know[/B]. ... and that the former king did the business (with ... mace and what the king had been up to ... demonic assassin kill the father king (a certain Jeremy Kyle ...
    Stealthwyvern Stealthwyvern March 2014 Chit chat
  • Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…

    ... instructions to throw interrupts
    jp never_end


    ;Draw ... af
    dec a
    jp nz,draw_char_frame_loop

    ;Bottom ... hl ;retrieve data address
    jp print_char_hl_de ;draw character

    joefish joefish March 2014 Development
  • Retro Gamer 127[IMG]http://i416.photobucket.com/albums/pp247/jdanddiet/RG127_zpse2b13416.jpg[/IMG] I did an archives feature on Crystal Computing / Design Design f…

    ...
    Ronald Wayne
    Bobby King
    jdanddiet jdanddiet March 2014 Announcements
  • so time to leave Windows XP or notSo, I finally decided to buy a SSD and I plan to install it inside my laptop. It is an old laptop, Asus X50N, from 2007, with Nforce 610m, Athlon X2,…

    ... of Windows never had any king of problems and already contained ...
    maiki maiki April 2014 Chit chat
  • Python script to scrape Amazon.com book reviewsI've been meaning to read the Gollancz Fantasy Masterworks (roughly 40 books) and Sci-Fi Masterworks (roughly 100+ books) lists for a while now, but …

    ... Gregory Benford (321)
    The King of Elfland's Daughter Lord ...
    BigBadMick BigBadMick April 2014 Chit chat
  • Happy birthday jp!Hope you've had a great day! :)

    Hope you've had a great day! :)
    cmonkey cmonkey April 2014 Chit chat
  • understanding machine codeHi Quick question. Am not really sure if it fits development forum as its not really development per se its more a learners question about developm…

    ... sense) which runs :

    JP 15f2
    EXX
    PUSH ...
    username username April 2014 Sinclair Miscellaneous
  • Double-Buffer ScreenFor my Alien Breed Speccy re-write I decided to use a Double Buffer (DB) or 'Back Screen' to draw all the game action onto, before shuffling the whol…

    ... then RANDOMIZE USR 31144 (or JP or CALL, or whatever) and ...
    LuMan LuMan April 2014 Development
  • Havoc Your Way (Skool Daze, Spy vs Spy, Jack the Nipper inspired)Hi All, I thought you might like to know about our Kickstarter campaign for our game Havoc Your Way ? The Chaos Years, as it may bring back great me…

    ... 've dreamt of being the king of mischief or the saint ...
    Option4Studios Option4Studios April 2014 Games
  • Unusual custom turbo loaders - with sourcesI have always been fascinated by turbo loaders; my games all feature a TZX version with one of such schemes implemented, and I have been experimentin…

    ...
    LD B,208
    JP NC,65459
    LD A ...
    LD B, 208
    JP NC, 65459
    LD A ...
    Alessandro Grussu Alessandro Grussu May 2014 Development
  • SkoolKit 4.0SkoolKit 4.0 has been released. SkoolKit is a set of command line utilities for disassembling Spectrum software, into ASM format or into a bunch of …

    ... in the operands of CALL, JP, DEFW and LD instructions)
    SkoolKid SkoolKid May 2014 Announcements
  • Anyone can help with hacking TwisterI believe I have found a truly unhackable game. Twister The mother of Charlotte.... It's the decryptor starting at 65068 I'm having problems with. …

    ... nigh-on impossible to me. JP?
    nuggetreggae nuggetreggae June 2014 Development
  • Retro Gamer's top twenty-five N64 games pollRetro Gamer has this month published a top twenty-five list of N64 games, as voted for by the readers (I didn't know they were doing it, or I'd have …

    ... , Body Harvest, Space Station: Silicon Valley, and maybe The World is ...
    ewgf ewgf June 2014 Chit chat
  • Album's, tapes and CD's that you're pretty sure nobody else you know will have!I was looking for a Jimi Hendrix 12" the other day for the 'odd lyrics' thread and I noticed that I have some really odd LP's, CD's and tapes. Here …

    ... recommended in the TVTOBW (trent valley tales of bad weirdness fanzine ...
    stupidget stupidget June 2014 Chit chat
  • Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…

    ... like this:

    0x0028 JP 0x335B
    0x002B RST 0x38 ... this.

    0x0028 JP 0xFFFD
    0x002B RST 0x38 ... ,#0xFFFF ; DE=0xffff
    0x0005 JP 0x11CB
    ...
    0x11CB ... end jump to the original jp location.

    --- INTERFACE ...
    tstih tstih July 2014 Development
  • Help with Manic Miner tweaksPlease. :) This is the Software Projects version, simply as I had it to hand. [B]Problem 1:[/B] I've learned a bit (actually quite a bit) and manag…

    ... /> POP HL ; 36838 225
    JP L_9033 ; 36839 195 51 144 ...
    spider spider July 2014 Games
  • +2A fixing Loaders request: Ghosts N? Goblins, Travel with Trashman and DuetIf anyone fancies, I would appreciate a lot to get the loaders, you know, the BASIC listing with a lot of DATAs, to type them, save them in cassette …

    ... !

    By the waym, jp, if you are reading me ...
    Ivanzx Ivanzx July 2014 Games
  • analysing program variable usageIf I wanted to count the number of times each variable is referenced while a program is running (not the number of times each variable is referenced …

    ... HL,[true (VARS)], CALL (not JP) $2900 V_EACH. If it still ...
    Battle Bunny Battle Bunny July 2014 Sinclair Basic
  • Pause XWhat would be the best way to implement a short delay (unlike with basic, without any key detection to cut it short) in assembly ? Basically somethi…

    ... the loader call and the JP to execute the code, just ...
    spider spider August 2014 Development
<1…17181920212223…34>

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    harriusherbartio on 11:21AM
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    harriusherbartio on 11:01AM
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