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<1…10111213141516…34>
  • 2xBooks: Assembly Language For Arcade Games & Machine Code Sprites And GraphicsI'm looking for the following two books to help my machine code game programming: 1) Assembly Language For Arcade Games and Other Fast Spectrum Prog…

    ... books to help my machine code game programming:
    1) Assembly ... Stuart Nicholls
    2) Machine Code Sprites And Graphics For The ...
    LevelUp LevelUp November 2019 Wanted
  • im having problems stripping the database out of this code for quill adventure writerim trying to get the database out of rouge midget. ive managed to do this with another game written using quill but this one is too big. theres no…

    ... to remove some of the code in the last game to ... trying to load the "rmidget" code file.
    digital digital April 2020 Assembler
  • how do i set this code up, so i can print more than one line of text?well i got it working but how do i set this code up, so i can print more than one line of text? with a loop or something? not sure where to start on …

    ... how do i set this code up, so i can print ... , or using completely different code

    [code]org 40000
    ld ... 21, 0, 20, 0
    [/code]
    digital digital June 2020 Assembler
  • why am i getting b integer out of range in this code?ive tried running this in spin but thats what i get [code]main org 40000; ; We want a black screen. ld a,71 ; white ink (7) on black paper (0…

    ... i get

    [code]main
    org 40000;
    mushlp ld a,22 ; control code for AT character.
    rst ... basexy ld a,22 ; AT code.
    rst 16
    ld ... /> ld a,144 ; ASCII code for User Defined Graphic 'A ... ,60,60,60 ; mushroom.[/code]
    digital digital June 2020 Assembler
  • this code wont give me a random starfieldim using a peice of code that ive copied from a book, ignore most of it as it is redundant. for some reason i get a strange random starfield instead …

    ... one.

    [code]main
    org 40000;
    code.
    rst 16
    ... ld a,144 ; ASCII code for User Defined Graphic 'A ... 60,60,60 ; mushroom.
    [/code]


    ... look at the peice of code ''this is the bit ...
    digital digital July 2020 Assembler
  • Penetrator - Compiled Basic ?For clarity: The Melbourne House sideways scrolling 'shoot em up' game, a very good game for its time and it still plays relatively well today, with …

    ... clarity: The Melbourne House sideways scrolling 'shoot em up' game, a ... very cursory glance at the code did not really reveal anything ...
    spider spider July 2020 Games
  • Zynaps scrolling - anyone ever reverse enginnered this?Zynaps has IMO some impressive scrolling - it utilises 18 character rows of the display file, so quite a large active play area, and scrolls 2 pixels…

    Zynaps has IMO some impressive scrolling - it utilises 18 character rows ...
    dmsmith dmsmith July 2020 Games
  • CODE instruction in array$ PRINTSo I'm still plugging away at BASIC and have found a line of code (another!) that's really puzzling me. The line is as follows: PRINT A$(P+Q TO P…

    ... have found a line of code (another!) that's really ... $(P+Q TO P+R+CODE A$(P+T)),
    ... /> So as I understand the code line, it reads:
    ... br /> However, there's a CODE instruction in there and I ... I am misundertanding how the CODE instruction works or I' ...
    LevelUp LevelUp October 2020 BASIC
  • Prefered Tools for Developing Maching Code in 2021I am considering this year to fulfill my goal of actually writing machine code programs for the ZX Spectrum. I am an accomplished object oriented cod…

    ... goal of actually writing machine code programs for the ZX Spectrum ...
    Scottie_uk Scottie_uk January 2021 Assembler
  • Last Problem in Chapter 3 of Toni Baker's Mastering Machine Code on your ZX Spectrum.Chapter 3 of this great book is all about how to use the registers and covers the operations LD, ADD, ADC, SUB, SBC, INC, DEC, SCF and CCF. The la…

    ... would be appeciated.

    [code]Op Hex Notes
    LD ... C9 Return to basic
    [/code]
    Scottie_uk Scottie_uk February 2021 Assembler
  • Did you know that OBD II Code Readers can be bought new very cheaply?I got mine before Covid struck and the cheapest one was about £10 .Most cars built after about 1997 have an OBD II port hidden away usually under th…

    ... up your car and the code tells where the fault is ... mostly from China) . The cheaper Code Readers are very basic and ...
    harriusherbartio harriusherbartio August 2021 Chit chat
  • ZEsarUX 10.0ZEsarUX 10.0 is out! Download it from : https://github.com/chernandezba/zesarux/releases/tag/10.0 Changes: Version 10.0 - Clive Sinclair edi…

    ... : click (toggle breakpoint, change registers), scrolling up/down by using the ... line setting to load source code

    Improved ZX Vision ...
    chernandezba chernandezba October 2021 Emulators
  • How do you publish your Z80 code online?I'm starting a blog about my pet project. One of the requirements is to publish explanatory Z80 code. What tools do you use for syntax highlighting? …

    ... is to publish explanatory Z80 code. What tools do you use ... I can feed raw Z80 code with and it does formatting ... 'm not afraid to write code for that). Perhaps even a ... that require me to feed code into editor and convert it ...
    tstih tstih December 2021 Development
  • shamazx dma 15x anyone intereted? was hoping to get ula+ full screen animations working any programmers think they could disect rtype replace screen scrolling…

    ... disect rtype replace screen scrolling with dma code?

    Attach Poll ...
    rogerjowett1 rogerjowett1 April 2022 Hardware
  • shamazx dma15x anyone intereted? was hoping to get ula+ full screen animations working any programmers think they could disect rtype replace screen scrolling w…

    ... disect rtype replace screen scrolling with dma code?

    Attach Poll ...
    rogerjowett1 rogerjowett1 April 2022 Hardware Preservation
  • shamazx dma 15x anyone intereted? was hoping to get ula+ full screen animations working any programmers think they could disect rtype replace screen scrolling…

    ... disect rtype replace screen scrolling with dma code?

    Attach Poll ...
    rogerjowett1 rogerjowett1 April 2022 Hardware
  • How do i learn to programAll the years i had a computer the only one i could program was the Texas Instruments Ti99/4a and when using extended basic with its so simple sprite…

    ... raw machine code. You won't find any 8 way scrolling games ... for basic and the machine code. You don't have enough ... a way condusive to good code.

    I'm sorry ...
    cyborg cyborg January 2002 Games
  • Your favourite machine apart from The SpectrumI've asked this on a couple of other sites, so now it's time to ask it here: what is your favourite machine, forgetting about the Speccy? For me, it'…

    ... 2 used a 8x8 pixel scrolling pattern to avoid attribute clash ... - easier, quicker and using less code than if the memory was ...
    cyborg cyborg November 2001 Games
  • ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…

    ... should be for the bit scrolling in. Then you need to ... .
    I would post some code examples but I don't ...
    Anonymous Anonymous June 2002 Games
  • ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…

    Yes. You are quite right. Scrolling a speccy screen is painful ... /> Commando, I believe, uses dedicated code to dump each background feature ...
    frobush frobush June 2002 Games
  • ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…

    I once wrote a machine code to scroll the screen horizontally - ... to write than a vertical scrolling routine, but would be harder ... speed.

    I think scrolling made some games worse - Cybernoid ... it had been done with scrolling it would have had to ...
    Neil^P Neil^P June 2002 Games
  • ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…

    ... />
    I'll find my code and write some comments on ... /> I still maintain that vertical scrolling is a lot more straightforward ...
    Anonymous Anonymous June 2002 Games
  • ScrollingBit of a daft topic but anyway... Which game had the best scrolling? I would have to volunteer Commando and its silky-smooth scrolling. A particula…

    ... wrote earlier:

    ; Screen scrolling routines
    ; for quick use ... ; a reasonable place to have code

    ; Scroll up
    code to scroll in a graphic ... 't find my old code) my horizontal scrolling routine must have been ...
    Anonymous Anonymous June 2002 Games
  • did anybody program games for their spectrum?did anybody make games for their spectrum and have you still got them in tap/z80 format. i once attempted to make a side scrolling game but it didn…

    ... caverns" kind of game. Horizontal scrolling implemented in MC.

    [code]
    10 LET X=90 ... next ball until empty
    [/code]

    Make X=9 ...
    Dr BEEP Dr BEEP December 2002 Games
  • Horizontal scrollDoes anyone know how to do a 2 or 4 pixel left or right horizontal scroll of the spectrum screen. I can make a 1 one pixel scroll with: ... rl (hl…

    ... got to do with horizontal scrolling, as far as I can ... writing some code involving sprites moving over a horizontally scrolling screen?
    rich_chandler rich_chandler March 2003 Sinclair Miscellaneous
  • games written using game writng programsI was reading through some issues of crash not long back and one article was about some 16 year old that wrote Frank n stein for the speccy(never pla…

    ... to and usually matches machine code speed, based on what ive ... life easier than using machine code also. you can also create ... you are making involves a scrolling
    background. A program can ... free you from having to code from complex timing
    ...
    Amigo Amigo April 2003 Games
  • Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…

    ... then again the screen stops scrolling after a bit of walking ... someone were to volunteer to code, but one never knows.
    Amigo Amigo June 2003 Games
  • Speccy machine code info where is it?Recently I've been trying to learn Z80 and I've managed to make limited progress (some of my routines even compile now!) but I seem to be having trou…

    ... have :

    Spectrum Machine code made easy by James Walsh ... David Webb which displays some scrolling and sprite routines
    Dr BEEP Dr BEEP June 2003 Sinclair Miscellaneous
  • Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…

    ... wants to code this, we must decide what kind of scrolling this ... in Target: Renegade or normal scrolling seen in the original version ...
    Swainy Swainy June 2003 Games
  • Are there any talented speccy programmers out there?Whats happened to all of the spectrum enthusiasts? There are very few new releases for the spectrum and remakes for new platforms don't interest me. …

    ... at Liverpool john Moores University, Code Masters were hosting it and ... the early techniques used for scrolling called SHEETS.
    They said ... but its worth mentioning what code masters are up to now ...
    retrogod retrogod July 2003 Games
<1…10111213141516…34>

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