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 0.017s
<1234567…34>
  • Wheels of Fire: Chase HQ = duff masteringAndy Barker mentioned Chase HQ in the Wheels of Fire compilation as being WIP way back in April 2005... http://www.worldofspectrum.org/forums/discus…

    Andy Barker mentioned Chase HQ in the Wheels of Fire ... been trying to TZX my copy (prior to selling it!) and ...
    richl richl July 2016 MIA/STP/SDP
  • Chase HQ - How did they do it?How did the programmers of Chase HQ do what they did with that game on the Spectrum? Let's face it, the speccy was pretty tired by the time that gam…

    How did the programmers of Chase HQ do what they did with ...
    Mark Wills Mark Wills September 2006 Games
  • Original boxed Chase HQ release desiredI'm after a boxed original Chase HQ, complete with box that hasn't been scraped too much. Doesn't matter if the tape works as it's for display purpos…

    ... 'm after a boxed original Chase HQ, complete with box that hasn ...
    NickH NickH December 2006 Wanted
  • Chase HQ II (missing artist ???)[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000906"]Chase HQ II[/URL] In the lower right corner there is what appears to be PG or FG or …

    ... .org/infoseekid.cgi?id=0000906"]Chase HQ II[/URL]

    In ...
    ZnorXman ZnorXman October 2009 Infoseek database
  • Chase HQ Pseudo 3d road algorithm ?Hello, I'm new to that forum and to the spectrum. I'm developping games for Colecovision (may be you hear about : Ghost'n Zombie and Smurf challe…

    ... particular i have discovered the Chase HQ port , and i have been ... the exact algorithm used in Chase HQ speccy's port.

    chase hq in a format i can ... dissambled file (re-assemblable)of chase HQ?

    Or better , if ...
    youki youki February 2011 Development
  • Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …

    ... that stack pointer cheese and push/pop is faster to move data ... mojon's fourspriter to use push/pop, but copying a four character ... screen takes three cycles of push/pop.

    What's the ...
    Gedlion Gedlion March 2011 Development
  • Game of '90 and Emlyn Hughes and Chase HQHi all I finally worked out how to play Emlyn Hughes and, whilst I can see the appeal, remain a Match Day 2 fan! Chase HQ is very impressive too, m…

    ... a Match Day 2 fan! Chase HQ is very impressive too, mind ...
    mickmog mickmog January 2013 Games
  • Chase HQ and Out Run Europa - same graphics?This just popped up on twitter, posted by Bill Harbison (Ocean graphic artist) https://pbs.twimg.com/media/Cn0G7D8WgAAI291.jpg Is this true? US…

    ... ? US Gold recycled Harbison's Chase HQ graphics for Out Run Europa ...
    leespoons leespoons July 2016 Games
  • Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.

    ... stored in this sequence
    push hl
    ...

    ... .xx T/byte
    PUSH/POP in theory 10.5 T ... (CHASE H.Q. has some kind of really fast copy routine ... )
    LD HL, xx / PUSH HL 10.5 T/byte ... was example of very fast push/pop copy routine. he uses it ...
    Fikee Fikee October 2008 Development
  • Using the stack to copy memory blocksA [b]PUSH[/b] and a [b]POP[/b] instruction together take less time than two [b]LDI[/b], so long [b]POP/PUSH[/b] sequences are sometimes used to copy …

    ... on the [b]push[/b] and [b]pop[/b], but have ... m asking about optimising a push/pop byte copier that uses ... push/pop copy used for multicolor or my description of push/pop copier from CHASE ... />
    when speaking about PUSH/POP copy don't forgot contetion (and ...
    Fikee Fikee August 2010 Development
  • Character scrollingOk, first I'd like to say that I'm not looking for a complete routine (but that might help) because I am hoping to write it myself and learn a bit mo…

    ... code, doesn't use PUSH/POP copy, uses LDIR, uses pre ... )
    inc hl
    push de
    djnz FillScrLinesRev
    ScrollDownLoop: ;copy a single char line
    push bc
    ld ... br /> inc d
    pop bc
    djnz ScrollDownLoop < ...
    0sAND1s 0sAND1s February 2010 Development
  • Help fix this keyboard read program?This code runs in an interrupt routine with DI. What would be the simplest way of making it so it doesn't auto repeat a keypress? [code]keys: ld a…

    ... /> always make laugh comparing tight PUSH-POP copy routine with manic miner's ...
    Fikee Fikee February 2010 Development
  • Help fix this keyboard read program?This code runs in an interrupt routine with DI. What would be the simplest way of making it so it doesn't auto repeat a keypress? [code]keys: ld a…

    ... ]always make laugh comparing tight PUSH-POP copy routine with manic miner's ...
    csmith csmith February 2010 Development
  • shifting spriteshi. have anyone experience with shifting sprites by table ? some neat tricks ? i don't want to see complete code (really don't want, it trashes thr…

    ... before I heard about the push/pop "copy 2 bytes at once" trick ...
    Paradigm Shifter Paradigm Shifter February 2010 Development
  • Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …

    ... the same speed as a PUSH/POP copy. But there is no LD ...
    joefish joefish March 2011 Development
  • Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …

    ... the same speed as a PUSH/POP copy. But there is no ... ld sp,screen+0x0020
    push hl ; 4T lost to ... push hl
    push de
    push bc
    exx
    push hl
    push ... de
    push ...
    gasman gasman March 2011 Development
  • Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…

    ... /> pop hl
    ld sp,hl

    push bc
    push de ... push de
    push hl

    sp2:ld sp,0
    pop ... hl
    pop ... you get real benefit from push/pop copy.
    Fikee Fikee January 2012 Sinclair Miscellaneous
  • Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…

    ... expect the code for different copy widths could be quite different ... you get real benefit from push/pop copy.[/QUOTE]
    Won't the ...
    obo obo January 2012 Sinclair Miscellaneous
  • Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…

    ... you get real benefit from push/pop copy.[/QUOTE]

    Won't ... ). So the main benefit from push/pop copy will be outside of contention ...
    Metalbrain Metalbrain January 2012 Sinclair Miscellaneous
  • Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…

    ... ). So the main benefit from push/pop copy will be outside of contention ... between the blocks of LDIs/PUSH/POP instructions! Though I did measure ...
    obo obo January 2012 Sinclair Miscellaneous
  • Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…

    ... ]Hysteria[/I].
    [/QUOTE]
    PUSH/POP copy with bank switch between fetch ...
    Fikee Fikee March 2012 New game ideas
  • Exilei\'m sure this has been brought up before but couldn't find a thread in 'New Game Ideas'. Why did the Spectrum never get a port of the BBC game Exile…

    [QUOTE=Fikee;613293]PUSH/POP copy with bank switch between fetch ... in the middle of each copy. It slows you down, but ...
    joefish joefish March 2012 New game ideas
  • T.I.M. - A New Interlace - Demo for DOWNLOADHere's something that's been in the works for quite a while ( mostly in my head ) and recently I've aquired assistance to help it come to fruition. …

    hey, people, CHASE HQ has pretty fast stack based copy routine:

    LD ... /> POP IY
    LD SP, HL; THE SECOND ONE :)
    PUSH IY ...
    PUSH IX
    PUSH BC
    PUSH DE
    PUSH AF ...
    Fikee Fikee May 2004 Development
  • Trouble with rainbow effect push/popI'm having a bit of bother getting my rainbow graphics to behave themselves. Basically I want a rainbow effect to last for say 4 seconds before movi…

    ... problem is if I omit push and pop bc the thing goes ... )
    ;push bc
    call flash
    call flash2
    ;pop bc ...
    daveysludge daveysludge June 2013 Development
  • UKretro.co.uk - Stock AddedHi, The latest additions to our site are listed below, Best Wishes Mike [url="http://www.UKretro.co.uk"]www.UKretro.co.uk[/url] PS We will be exhi…

    ... ?
    Mike Read's Pop Quiz - Encore-Sinclair ZX ... - ZX Spectrum?
    Miami Chase - Codemasters - Sinclair ZX Spectrum?< ... 128 C64?
    Miami Chase - Codemasters - Commodore 64 ... Mastertronic - Amstrad CPC 464?
    Chase HQ - Hit Squad - Amstrad CPC ...
    fairziff fairziff February 2005 Sales
  • Push/Pop methodMachine code question: Could somebody explain, how do we use the stack in assembler to copy data from one place of memory to another? I've heard it i…

    Machine code question:
    Could somebody explain, how do we use the stack in assembler to copy data from one place of memory to another?
    I've heard it is one of quickest methods, faster then e.g using ldir or writing a loop.
    Is it true?
    Ralf Ralf July 2005 Development
  • Most accurate conversion?There have been lots of threads about the "best" conversion to the Speccy, but which is the most accurate? Not necessarily in terms of graphics, as t…

    ... the same.

    Similarly, Chase HQ is great on the Speccy ... , rather than being an accurate copy.

    Ghosts and Goblins ...
    Gwyn Gwyn November 2006 Games
  • 400+ games for saleHiya! I'm likely to be moving house in the New Year so rather than try and sell my Spec tapes bit by bit on eBay as I have been doing, I'm having to…

    ... - Image Works
    Blasteroids (+spare copy) - Image Works
    Blockbusters - Macsen ... - Alternative Software
    Chase H.Q. - Ocean
    Chase HQ - Hit Squad, The ...
    richl richl December 2008 Sales
  • Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …

    ... service routine and uses POP and PUSH to copy the
    contents of ... /> [code]; Byte Order Backbuffer - Pop And Push Edition
    ; Copyright (c) 2012 ... b) LDI is faster than POP/PUSH for everything except rainbow processing ...
    chev chev April 2012 Development
  • Mojon Twins MK2 and lighting effectsDoes anyone have any experience in getting the overlay.h working in the MK2 engine. There were several games written in the churro that used the ove…

    ... /> ._ovldbl
    push bc

    ; Copy 30 attrs
    < ... add hl, bc

    pop bc
    djnz _ovldbl
    pop bc
    add hl, bc ... ; hl = ovl_y * 32
    pop bc
    add hl, bc ...
    andydansby andydansby June 2017 Development
<1234567…34>

Latest Posts

  • I am currently watching.....
    Paradigm Shifter on 12:49AM
  • New video about S-video modification on Issue two 48K Spectrum.
    Renegade on April 21
  • Fixed Speccy Software. And which games remained unfixed?
    John Elliott 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
  • European Software Titles with an English version
    harriusherbartio 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
  • Celebrity deaths...
    mel the bell on April 20

HitBox

Word Docs Hits
push 4.9K 12.7K
pop 6.4K 13.2K
copy 17.9K 22.8K
chase 2.5K 2.8K
hq 1.3K 1.5K

Related Threads

  • Push/Pop methodMachine code question:<br /> Could somebody explain, how do we use the stack in assembler to copy data from one place of memory to another?<br /> I'v…
  • Push-Push Penguin Online HighScores UpdateHey all! <br /> <br /> If you like Speccy games then you will probably like this one. It is basically a Pengo remake with A LOT of extras. This one i…
  • Chase HQ - How did they do it?How did the programmers of Chase HQ do what they did with that game on the Spectrum?<br /> <br /> Let's face it, the speccy was pretty tired by the t…
  • Original boxed Chase HQ release desiredI'm after a boxed original Chase HQ, complete with box that hasn't been scraped too much. Doesn't matter if the tape works as it's for display purpos…
  • Chase HQ II (missing artist ???)[URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000906"]Chase HQ II[/URL]<br /> <br /> In the lower right corner there is what appears to be …
  • Chase HQ Pseudo 3d road algorithm ?Hello,<br /> <br /> I'm new to that forum and to the spectrum.<br /> <br /> I'm developping games for Colecovision (may be you hear about : Ghost'n…
  • Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway.<br /> <br /…
  • Game of '90 and Emlyn Hughes and Chase HQHi all<br /> <br /> I finally worked out how to play Emlyn Hughes and, whilst I can see the appeal, remain a Match Day 2 fan! Chase HQ is very impre…
  • Trouble with rainbow effect push/popI'm having a bit of bother getting my rainbow graphics to behave themselves.<br /> <br /> Basically I want a rainbow effect to last for say 4 seconds…
  • Push 'n' ChaseIt is my great pleasure and honor to announce the release of <br /> <br /> PUSH 'n' CHASE <br /> <br /> a game made with CGD <br /> featuring a wonde…

Related Searches

  • chase hq
  • out run europa chase hq
  • chase hq engine
  • outrun chase hq engine
  • outrun chase hq
  • push pop
  • push pop to the screeb
  • push pop to the screen
  • block copy push pop
  • fast push pop copy
  • fast block copy push pop
  • fast copy push pop chase hq
  • chase hq push pop
  • fast screen copy chase hq
  • fast screen chase hq
  • chase hq push
  • push pop copy chase hq
  • fast copy push pop
  • copy push pop
  • screen copy push pop

Copyright © 2024 World of Spectrum