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<1…13141516171819…34>
  • z88dk SP1 - any internal oddities?I'm just wondering if anyone knows if the Z88DK's spritelib SP1 has any oddities inside, for instance relying on specific timings, undocumented instr…

    ... $FF (and there is contended memory paged in there), which I ... the case when using the z88dk spritelib. If so, it may ...
    Alcoholics Anonymous Alcoholics Anonymous July 2012 Development
  • Saving space using procedural graphicsAfter spending several hours playing around with various packers to squash the Alien8 test screen$ it occured to me that maybe bigger space savings c…

    ... a simple SVG renderer in z88dk.[/QUOTE]

    Here are ... 'll save a lot of memory by generating screens algorithmically like ...
    Alcoholics Anonymous Alcoholics Anonymous July 2012 Development
  • Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…

    One thing that concerns me - we're not supposed ... the I register into contended memory when using IM2. But that ...
    joefish joefish October 2012 Development
  • Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…

    ... =joefish;655488]One thing that concerns me - we're not supposed ... the I register into contended memory when using IM2. But that ... with I pointing to contended memory only happens in the +2 ...
    na_th_an na_th_an October 2012 Development
  • Coding for 128kHi all, I wonder if anyone can suggest any useful reading/threads/examples on the fundamentals of 128k coding. Chapter 24 of the +2 manual has prov…

    ... =joefish;655488]One thing that concerns me - we're not supposed ... the I register into contended memory when using IM2. But that ...
    AndyC AndyC October 2012 Development
  • 128k +2 does not show menuHi guys! I have a 128k +2 and when I turn it on, the main menu is not shown to me. Instead, I enter directly on 48k mode. Does anyone know how7why t…

    ... paragraph the colleague just quoted concerns the original "toastrack" 128K version ... have a problem with the memory paging circuit as some suggested ...
    pkersey pkersey October 2012 Hardware
  • 128k +2 does not show menuHi guys! I have a 128k +2 and when I turn it on, the main menu is not shown to me. Instead, I enter directly on 48k mode. Does anyone know how7why t…

    ... paragraph the colleague just quoted concerns the original "toastrack" 128K version ... have a problem with the memory paging circuit as some suggested ... the problem is on the memory paging circuit, can it be ...
    camurso_ camurso_ October 2012 Hardware
  • Newbie Spectrum developer advice ....Hi, Im new to the site and to spectrum developing - well, not quite, I wrote Spectrum programmes in Basic 30 years ago but then went off into the wo…

    ... z88dk. You'll be able to make full use of 128K memory ...
    csmith csmith January 2013 Development
  • BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…

    ... lots of large sprites in memory. Of course the game would ... Boriel's ZX BASIC, and z88dk (although it should also work ...
    Sadako Sadako March 2013 Brand new software
  • BIFROST* for graphic artists - part 1Using multicolor requires 2 very different skills: [I]programming[/I] and [I]graphic design[/I]. I already wrote several tutorials about the former …

    ... you like. However, changing the memory addresses around takes time, so ... some unused address in contented memory (for instance 23680).

    concerns me. It could be fairly ...
    Einar Saukas Einar Saukas March 2013 Development
  • ZXNetUSB (NedoBus based Ethernet + USB)Still in development (hardware is supposed to be working, but no software so far) [url]http://www.nedopc.com/zxnetusb/zxnetusb.php[/url]

    ... written Spectranet software (and any Z88DK stuff), and there's probably ... the page-in points at memory address 0x3ff8-0x3fff plus the ... 'll need at least some memory somewhere to implement this (I ...
    Winston Winston April 2013 Hardware
  • Siege RTS projectActually, it's but pre-prototyping: an upside-down tower-defense version of Sodov ([url]http://www.worldofspectrum.org/infoseekid.cgi?id=0004618[/url…

    ... />
    For the sake of memory, I prefer using units as ... /> I haven't profoundly tried Z88dk nor Boriel yet, but an ...
    NRA NRA May 2013 New game ideas
  • pathfindingworking on pathfinding in the game. here is Russian description of Lee's algorithm: [url]http://algolist.manual.ru/games/wavealg.php[/url] "if-then"…

    ... ) that attempt to stay in memory limits too. If you need ... , there are a few in z88dk's code repository and perhaps ...
    Alcoholics Anonymous Alcoholics Anonymous May 2013 Development
  • new Easy Hdd 1.12 for MB02+ (repaired hdd driver)Dear all MB02+ users and followers of this best disk interface for ZXS:) together with Busy I manged to repair a limitation in Easy Hdd (hdd driver …

    ... 128 tracks. Meaning that it concerns in most cases all 127x8 ... copy files bigger than RAM memory and this is it's ...
    Hood Hood June 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... was some talk of z88dk wanting to switch to ... with many of the z88dk libraries and that's ... better C compiler but z88dk provides the better libraries.< ... br />
    z88dk's C compiler is still ... a native z80 machine with memory and/or disk space. ...
    Alcoholics Anonymous Alcoholics Anonymous June 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... a better C compiler but z88dk provides the better libraries.[/QUOTE ... work.

    I see z88dk doesn't quite fully support ... a native z80 machine, whereas z88dk's compiler is in C ... a native z80 machine with memory and/or disk space. That ...
    u6c87 u6c87 June 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... z88dk's has the special feature that it can add disjoint memory ... different memory banks or for the kernel, eg). Z88dk's is ... [URL="http://z88dk.cvs.sourceforge.net/viewvc/z88dk/z88dk/libsrc/malloc/ ... z88dk has the same in its balloc library (block memory ...
    Alcoholics Anonymous Alcoholics Anonymous June 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... the stack...
    [elided]
    z88dk assumes the function has few ... proc and memory management.

    Incidentally, does z88dk make use of ...
    u6c87 u6c87 June 2013 Development
  • Fantasy Z80 instructions?This follows on from something catmeows said in another thread, and that I've been meaning to ask for a while. This may sound daft to people with mo…

    ... at a fixed location in memory. It also tied the cpu ... speed to the available memory speed which was no problem ... optional autoincrement and autodecrement on memory loads would improve z80 code ... one way or another in z88dk.

    I like many ...
    Alcoholics Anonymous Alcoholics Anonymous June 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... interface to the function. In z88dk we call that the asm ... , which can do non-aligned memory access, this could just mean ... />
    [quote]
    Incidentally, does z88dk make use of the alternate ... the code generator level in z88dk, at least. The reason is ...
    Alcoholics Anonymous Alcoholics Anonymous June 2013 Development
  • Relocation with SDCCI desperately need auto- relocation with SDCC. Something that will compile all of my code using start address 0 and generate relocation table so that…

    ... which can do non-aligned memory access, this could just mean ... t have a version in z88dk either. Strings in C ... to look again at z88dk and see what changes I ... use the same ABI as z88dk, but the hardest part ... me with z88dk, but I'm going from memory from nearly ...
    u6c87 u6c87 June 2013 Development
  • Where do you stick the stack?...OK, so I've got a fair chunk of ASM code assembled from 24000 mark. The stack shouldn't get very big, just a few PUSHes and POPs of the main regis…

    ... of position when demanded. In z88dk, the amount is a fixed ... attached no matter how little memory you have left :)
    Alcoholics Anonymous Alcoholics Anonymous July 2013 Development
  • Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…

    ... />
    [URL="http://z88dk.cvs.sourceforge.net/viewvc/z88dk/z88dk/libsrc/sprites/software ... multiple heaps to allocate memory out of different memory banks.

    memory configuration, the compiler introduces trampolining ...
    Alcoholics Anonymous Alcoholics Anonymous July 2013 Development
  • Games/Programs making use of DivIDE featuresHello :) I have a question: I may be wrong, but it looks like the DivIDE and similar interfaces for the ZX Spectrum are almost exclusively used for …

    ... zx81 that was compiled using z88dk. The VNC feature is nice ... them), *transparent* access to bankswitched memory is supported, pre-emptive multitasking ...
    Alcoholics Anonymous Alcoholics Anonymous July 2013 Development
  • Can a guy that traveled on the short bus learn machine code...Hmmm So after some soul searching I figured it was time to finaly nail spectrum machine code. Its so frustrating to sit infront of a basic listing w…

    ... are cross-assemblers. I believe z88dk can run either as a ... has a "load binary into memory" facility (and I'll bet ... straight into the Speccy's memory and run it with "USR ...
    u6c87 u6c87 September 2013 Development
  • Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…

    ... * it was it used a memory bank that was being used ... 48K versions, aside from space concerns.

    Not a problem ...
    spider spider September 2013 Development
  • Finders Keepers+I know a few of you are interested in this project so I thought it was about time I started a proper thread for it rather than just slipping bits int…

    ... * it was it used a memory bank that was being used ... 48K versions, aside from space concerns.

    Not a problem ... probably left the +3 disc memory area alone.

    It ...
    David Jones David Jones September 2013 Development
  • What would be the simplest tape loading routine?I'm searching for some small assembly snippet I can use to load a (headerless or not) block from tape into RAM I can embed in my C games to load furt…

    [QUOTE=na_th_an;727263]You know memory is very tight so I ... are using. Quite often the z88dk versions will be smaller and ... currently enabled, eg, whereas the z88dk one will make sure the ...
    Alcoholics Anonymous Alcoholics Anonymous October 2013 Development
  • z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…

    ... [URL="http://z88dk.cvs.sourceforge.net/viewvc/z88dk/z88dk/libsrc/input/ ... [URL="http://z88dk.cvs.sourceforge.net/viewvc/z88dk/z88dk/libsrc/input/spectrum ... keyboard with assembly but z88dk says it cant find ...
    Also keep the memory map in mind -- this is ...
    Alcoholics Anonymous Alcoholics Anonymous October 2013 Development
  • A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…

    ... will typically need more available memory (since it will need more ... typically doesn't have much memory left to store several animation ... /> There will be support for z88dk also, I just didn't ...
    clausjahn clausjahn November 2013 Brand new software
<1…13141516171819…34>

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