World of Spectrum
  • Categories
  • Discussions
  • FAQ
  • Sign In
Home › Search
Title Search
@title beer Word 'beer' in title
User Search
  • @user admin Only posts by Admin
Text Search
  • @body beer Word 'beer' in the text
Phrase Search
"Hello World" Exact phrase match
Exclude Terms
  • car -red Search cars that are not red
"Or" Searches
  • honda | bmw 'honda' or 'bmw' results
Multi-Field
@(title,body) hello Both contain 'hello'
WildCard
  • hond* civ* Match all with an astrix
Combination
  • @title bmw @user admin
See more supported syntax examples
Search Again :: Adv Search 1000 results in 0.004s
<1…15161718192021…34>
  • Screen access in assemblerI am again troubled by the unusal screen design of the Spectrum. :) If I want to do something with, say, a 16x16 bit block of the screen (in the sam…

    ...
    and #07
    jr nz,.label
    ld a,l ... it becomes even faster using jp instead of jr.
    Metalbrain Metalbrain November 2008 Development
  • Machine code help pls: LDI example[deleted]

    ...
    DEC C
    JR NZ, Search
    NotFound .......
    ....
    JR Z,AISHL
    JP PE,BCZERO ; could also be ...
    Dr BEEP Dr BEEP December 2008 Development
  • Keyboard routinesI'll ask here first - since this must be a long-ago solved problem, and hopefully I can avoid re-inventing the wheel... I need a keyboard routine th…

    ... READ 5 KEYS
    JR NZ,KEYP
    LP_DEF RLC B ... /> BIT 1,A
    JR nZ,NOSS
    ld a,e ...
    pr RST 16
    JP START
    [/code]
    Dr BEEP Dr BEEP January 2009 Development
  • Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …

    ... PRNT
    CALL TSTM
    JP NC,BD1
    LD HL ... )
    AND A
    RET NZ
    INC HL
    JR ... br /> AND A
    RET NZ
    LD (HL),$FF
    INC A
    RET NZ
    INC HL
    JR ... )
    AND A
    RET NZ
    INC HL
    JR ...
    jp jp January 2009 Games
  • Jetpac questionHi all, I just bought a copy of Jetpac off of Ebay and I'm having problems. To start, I'm trying to play it on an issue 2 Speccy with Interface 1, 2 …

    ... /> CP 170
    JR NZ,MEASURE_FAIL ; This address failed to ... LD HL,String6+17
    JP CreateHexString ;Equiv to CALL CreateHexString ... /> CP E
    JR NZ,InversionFill1 ;Wrapped around to ROM ... /> CP E
    JR NZ,InversionTest1 ;Wrapped around to ROM ...
    Digital Prawn Digital Prawn January 2009 Games
  • Atic Atac speed.Dear all, Excuse the noob question, but does anyone know how fast Atic Atac runs at? What I mean is, frames per second, or the amount of pixels the…

    ...
    SetupInts: ld a,OP_JP ; jp opcode
    ld (INTVECTOR),a ... /> ; or a
    ; ret nz
    ; ex af,af
    or a
    jr nz,Beeper

    WaitInt: ... add a,a
    jr nz,PlayFX
    ld (FXNumber),a ...
    frobush frobush 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.…

    ... br /> cpir
    jp po,26100 ; run ... ix+0)
    jr nz,search
    inc de ... /> dec a
    jr nz,match

    ; ...
    Bob Stains Bob Stains January 2009 Games
  • New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…

    ... /> cp 191
    jr nz, moveright
    inc l
    cp 191
    jr nz, dontmove
    dec l< ... /> cp 255
    jr nz, checkright
    inc hl
    cp 21
    jr nz, newroadposn
    dec hl
    jr nz, wait
    jp principalloop
    ;return score ...
    bigjon bigjon January 2009 Development
  • MultichromeIt turns out that multichrome, and other screen modes, are emulated in Fuse and Eightyone via ZX Spectrum SE emulation (which is similar to the TC214…

    ... />
    dec c
    jr nz,pg
    ld a,(pg ... /> ld (pg+1),a
    jp blink
    [/code]
    omega omega January 2009 Development
  • Problem Wrapping SpritesHi, I am having an issue wrapping my sprites around the screen, Basically, I have a back buffer which is 24 chars (192 Pixels) by 28 chars (224 P…

    ... , is it negative?
    JR NZ,MOVEX_NEG ;if so move to ... flag if >=128)
    JP M,MOVEX_NEG ;if so move ... , so a 3-byte [B]JP M[/B] must be used ...
    Chris Pile Chris Pile April 2009 Development
  • Tips on optimizing some newbie assembly routinesI'm starting to learn some assembly language. The best way to learn is to actually code something you are going to use, so I'm creating a very simple…

    ... /> cp 255
    jp z, _b1aok
    inc ... c
    jp _b1a

    . ... /> inc e
    jr nz,_b1a
    [/code]
    ...
    Metalbrain Metalbrain June 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    [QUOTE=jp;360447]PEEK @, though is somewhat ... 2 num.expr.
    JR NZ,fe1 ;JP if runtime
    POP ...
    roko roko July 2009 Development
  • Interface One - New FunctionalityAs you may (or may not) be aware the Interface One is a pretty powerful piece of kit. One of it's greatest features is being able to easily extended …

    OK, I've coded this to add a @DEEK function to Spectrum with IF1.
    The caveat is that it only works within a LET statement, in this form:

    LET n=@DEEK v

    Where 'n' is any numeric variable, and 'v' any numeric expression BC (or ...
    RST#08 RST#08 July 2009 Development
  • Has any programmers recently pushed the spectrum to the limits?Hi there. Ive just discovered this great forum and I was brought up with the speccy 16,48 and then 128k. Im just wanting to know if there are any re…

    ...
    OR C
    JR NZ,DELAY

    nop

    LABEL ORG 0FDFDH
    JP HIRES
    ORG LABEL
    AMW AMW August 2009 Development
  • Monkey Island On Speccy...I would love to see Monkey Island on the speccy...think it can be done...not as much detail or graphics...but along the same story lines.... What ot…

    [QUOTE=jp;393284]Not so much pessimism ... [URL="http://groups.google.co.nz/group/comp.sys.sinclair/browse_thread ...
    joe75 joe75 October 2009 New game ideas
  • Tinkering with Quique Llar?a's Midi2Ay tool...Im tinkering with Quique Llar?a's Midi2Ay tool, found at: [url]ftp://ftp.worldofspectrum.org/pub/sinclair/tools/pc/midi2ay-0.1.zip[/url] Im not a v…

    ... )
    or a
    jr nz,finrsi
    inc hl

    jp 56 ; we'll allow basic ... /> ;; ei
    ;; ret

    jp exit

    fin xor ... ),a
    ;;; jr $

    jp exit

    pos dw ...
    Alcoholics Anonymous Alcoholics Anonymous October 2009 Development
  • The incredible shrinking screendumpIn this topic I stated that I would be impressed if the screendump could be smaller than 37 bytes. [url="http://www.worldofspectrum.org/forums/viewt…

    ... dec a
    14 jr nz,7
    16 ld e ... dec e
    35 jr nz,16
    37 ld a ... and a
    39 jr nz,16
    41 ld a ... cp 192
    46 jr nz,3
    48 ld a ... /> 62 pop bc
    63 jp #1748
    tab defb 13 ...
    Dr BEEP Dr BEEP November 2009 Development
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... /> ld (AYREGS+AR_AmplB),hl
    jp rout_a0
    pt3_init:
    ld ... br /> and 00fh
    jr nz,pt3_initv1
    pop hl
    and a
    jr nz,pt3_initv2
    jp rout_a0

    ; ... /> dec (hl)
    jr nz,pl1b
    AdInPtA:
    ld ...
    chev chev November 2009 Development
  • When would you use LD A,R ?Can anyone tell me a practical use of LD A,R and LD R,A I am confused when you would need to use it? Cheers

    ... ; or a
    ; ret nz
    ; ex af,af
    jr nz,Beeper ; if so then ... add a,a
    jr nz,PlayFX
    ld (FXNumber ... /> ld hl,(FXCode)
    jp (hl) ; beeper effect till ...
    frobush frobush November 2009 Development
  • Spin Assembler DirectivesLeading on from [URL="http://www.worldofspectrum.org/forums/showpost.php?p=402514&postcount=65"]jp's recent post in Spin 0.7 Public Testing thread[/U…

    ... : 'IYL'; I: 156),
    (S: 'JP'; I: 51), (S: 'JR'; I ... +($FF0000 shl 8)),
    (S: 'NZ'; I: 144), (S: 'OFFSET'; I ...
    Dunny Dunny November 2009 Emulators
  • Spin Assembler DirectivesLeading on from [URL="http://www.worldofspectrum.org/forums/showpost.php?p=402514&postcount=65"]jp's recent post in Spin 0.7 Public Testing thread[/U…

    ... : 'IYL'; I: 156),
    (S: 'JP'; I: 51), (S: 'JR'; I ... +($FF0000 shl 8)),
    (S: 'NZ'; I: 144), (S: 'OFFSET'; I ...
    jp jp November 2009 Emulators
  • AY programming and notes frequencyHello everybody, I'm Targhan from the french CPC group Arkos, perhaps you've heard of us. I'm currently working on a music tool and I'd like to k…

    ... /> ld (AYREGS+AR_AmplB),hl
    jp rout_a0

    p3x_init:
    and 00fh
    jr nz,p3x_initv1
    pop hl
    and a
    jr nz,p3x_initv2
    jp rout_a0

    ; ... /> dec (hl)
    jr nz,pl1b
    AdInPtA:
    ld ...
    chev chev November 2009 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…

    ... proof of concept
    ; mailto: jp@drumfu.com
    ;
    ; updated ... de ; subtract
    ; ret nz ; if de != 0700 then ... br /> ;
    rom1tab jp $1b29 ; optempm
    jp $15ac ; lvmch + ... br /> ;
    rom2tab jp $1b05 ; optempm
    jp $199d ; lvmch + ...
    jp jp December 2009 Development
  • What are the keys for Penetrator?Q - Up, A- Down, O-Left P- Right Space - Bomb. So what's fire? When I press the P button, it fires bullets, but that's the 'right' key. Surely they…

    ... 'P' key
    JR NZ, KEY_L ; Jump if not ... 'O' key
    JR NZ, KEY_D ; Jump if not ... 'Q' key
    JR NZ, K_BOMB ; Jump if not ... 'SPACE' key
    JR NZ, K_FIRE ; Jump if not pressed ... B ; 'FIRE'

    KEYS: JP $8C1B


    ; ...
    FrankT FrankT January 2010 Games
  • 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 …

    ... )
    inc hl
    jr nz,fkey ; repeat until direction found ... to ....
    push de
    jp (hl) ; and go to routine ...
    Dr BEEP Dr BEEP February 2010 Development
  • Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…

    ... , (copyptr)
    cp #ff
    jp z, .copywholescreen

    ; ...
    dec c
    jr nz, .beep
    .nosfx
    ... /> ld (tune_tick), a
    jr nz, .skipnote
    ld a, (tune_offset ...
    dec c
    jr nz, .tuneloop
    .skipnote
    ...
    Paradigm Shifter Paradigm Shifter February 2010 Games
<1…15161718192021…34>

Latest Posts

  • European Software Titles with an English version
    harriusherbartio on 12:06PM
  • How Do You Categorize Your Speccy Software and Games?
    harriusherbartio on 11:21AM
  • Fixed Speccy Software. And which games remained unfixed?
    harriusherbartio on 11:01AM
  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Happy 40th Birthday to the Amstrad CPC464!
    rich_chandler on April 21
  • Another Birthday! The Game Boy Is 35!
    mel the bell on April 21
  • Elusive Strategy Games done by the Smaller or less Prolific Software Houses.
    harriusherbartio on April 21
  • 1992 Spectrum Software
    harriusherbartio on April 21
  • +3 Disk drive motor
    AndyC on April 21

HitBox

Word Docs Hits
jp 4.7K 8.4K
nz 2.2K 5.2K

Related Threads

  • DEC BC/LD A,B/OR C/JP NZ,loopyesterday i saw nice trick:[code]<br /> <br /> dec bc<br /> ld a, b<br /> or c<br /> jp nz, loop<br /> <br /> can be replaced (bc starts &gt;255, sho…
  • NZ earthquake! NZ-WoSsers ok?Just heard about the terrible earthquake that hit New Zealand.<br /> <br /> I hope that any NZ-WoSsers are ok, my thoughts are with you guys.<br /> <…
  • BONG! 02:00 AM Auckland, NZ...Has anybody heard of the musician "Kevin Ayreles(?)" before......?
  • happy birthday jpyup<br /> <br /> happy birthday
  • Happy Burfday jp!Happy Burfday!<br /> <br /> Drink Beer (your avatar implies you may already be ;))<br /> <br /> Have a Gudden!
  • Happy Birthday JPHave a pleasing old time.
  • Happy Birthday jphope it's a good 'un
  • Happy Birthday JP!Happy Birthday JP!<br /> <br /> (Though taking the time difference into account it may no longer be your birthday)<br /> <br /> Happy hacking all the…
  • JP (HL) confusionokay.... JP nn will jump to memory address nn.<br /> JP (HL) ,I assumed would read the contents of memory address HL and jump to the location<br /> …
  • Happy birthday jp!Hope you've had a great day! :)

Related Searches

  • jp peter
  • fast jp table
  • jp
  • jp impossible mission
  • jp impossible mission tweak
  • tweak jp
  • head over heels jp
  • bleepload jp
  • jp speedlock
  • alkatraz jp
  • skate crazy jp
  • king valley jp
  • maketzx jp
  • jp maketzx
  • jp dos
  • jp alkatraz
  • jp hl
  • jp format
  • interface version jp
  • ultimate 3 underwurdle jp

Copyright © 2024 World of Spectrum