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<1…11121314151617…34>
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... write the housekeeping program in assembly, and I can't do ... .

    Moreover, a compressing routine which can be managed from ...
    Alessandro Grussu Alessandro Grussu January 2013 Brand new software
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... supposed to work if the routine is not relocated to a ... almost totally unable to understand assembly language of any kind, let ...
    Alessandro Grussu Alessandro Grussu January 2013 Brand new software
  • RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…

    ... that the routine to decode it later (in Z80 assembly) would be ...
    Einar Saukas Einar Saukas February 2013 Development
  • ZX7: an "optimal" LZ77 packerAbout 20 years ago, I started a M.Sc. in Computing, planning to work on data compression. Although I quickly changed to another subject for a number …

    ... .[/QUOTE]

    Unfortunately the routine in post #172 is not ... you want to assemble the routine at address 31100)

    Assembly took 0.00 seconds and ...
    Einar Saukas Einar Saukas February 2013 Brand new software
  • Keyboard TrickI know how to use the multi key in BASIC with IN you can get the keys [QUOTE]IN 254+256*(255-2^K)[/QUOTE] K is the keyboard's half row, comes from …

    ... .

    Here is the assembly code:
    [code] ORG 49152 ... />
    With a slightly longer routine, the buffer could order the ...
    BloodBaz BloodBaz February 2013 Sinclair Basic
  • Getting PC into HLHello, here's a conundrum for you... Is there a way to obtain the value of the PC register (say into HL) without using absolute addressing such as C…

    ... /> Suppose you wrote a complex routine that internally uses CALLs or ... if your routine is called directly from BASIC, not Assembly. Or you ...
    Einar Saukas Einar Saukas February 2013 Sinclair Miscellaneous
  • Getting PC into HLHello, here's a conundrum for you... Is there a way to obtain the value of the PC register (say into HL) without using absolute addressing such as C…

    ... be hard coded into the assembly (at which point you just ... method is to start the routine with:

    LD HL ... then have whatever loads the routine POKE the appropriate values into ...
    AndyC AndyC February 2013 Sinclair Miscellaneous
  • New game: Knights & DemonsHi everybody! Our new game is here. Knights & Demons is a puzzle game in which you have to turn all demons into knights before time is up. [IMG]htt…

    ... haven't got the assembly code because assembly routines were created using ... BMP2SCR_EXP again
    - 1 music routine: music was made using SoundTracker ...
    Baron Ashler Baron Ashler February 2013 Brand new software
  • [STP] Battle for Midway + Theatre EuropeI've just realised that I didn't finish or get any further with two STP's, both from the Classic Conflicts series: [url]http://www.worldofspectrum.o…

    ... scheme. They launch the assembly code hiding the real RANDOMIZE ... And talking about the loading routine, a bit of the same ... five programs) use a routine slightly modified from the standard ... conclusions (based mainly in loading routine) could be ?:
    [ ...
    jlsoler jlsoler March 2013 MIA/STP/SDP
  • I thought I'd give assembly a goAnd well being an absolute newb,I'm absolutely useless.I need your help. I thought I'd give this a go in zxspin [url]http://chuntey.wordpress.com/20…

    ... "must have" books for the assembly programmer are 'The Complete Spectrum ... gives detailed information of every routine in the Speccy's 16 ...
    The_Bert The_Bert March 2013 Sinclair Basic
  • 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"…

    ... Z80 Assembly, can we consider that each iteration of the former routine ...
    Einar Saukas Einar Saukas May 2013 Development
  • 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"…

    ... Z80 Assembly, can we consider that each iteration of the former routine ...
    Patrik Rak Patrik Rak May 2013 Development
  • ZX-Assembler in progress...Dear readers, I just want to announce that ZX-Assembler is not longer only an idea in my mind. It's just alive. Unfortunately, it's too early to mak…

    ... file, show its content as assembly, allow me to edit it ... the following categories:
    [LIST][*]assembly instructions (default option obviously)
    routine like address $0e9e (that I ...
    Einar Saukas Einar Saukas May 2013 Emulators
  • ZX-Assembler in progress...Dear readers, I just want to announce that ZX-Assembler is not longer only an idea in my mind. It's just alive. Unfortunately, it's too early to mak…

    ... file to specify that routine starting at address 53200 ... label "print_tile", with comment "routine to print tile to screen ... label "print_tile"
    53200: comment "routine to print tile to screen ... 4
    64256: mode-assembly[/CODE]
    Also ZX-Assembler ...
    Einar Saukas Einar Saukas May 2013 Emulators
  • ZX-Assembler in progress...Dear readers, I just want to announce that ZX-Assembler is not longer only an idea in my mind. It's just alive. Unfortunately, it's too early to mak…

    ... the following categories:
    assembly instructions (default option obviously) ... file to specify that routine starting at address ... "print_tile", with comment "routine to print tile to screen ... print_tile"
    53200: comment "routine to print tile to screen ...
    clausjahn clausjahn May 2013 Emulators
  • Horizontal Scrolling/Per Character gamesHello. Can anyone give me the titles of some Speccy games (preferably good ones, but I don't mind hearing about bad ones too) that scroll the playin…

    I did a horizontal scrolling routine in assembly recently, mixed in with zxbasic

    [url]http://www.boriel.com/forum/how-to-tutorials/scrolling-tiles-t869.html[/url]

    just in case you wanna do per pixel scrolling like R-Type
    slenkar slenkar June 2013 Games
  • FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…

    ... to print these fonts with assembly?

    (for those who ... to use this driver in assembly is as follows:

    assembly, here's a way to ... PRINT ROUTINE" in my ASM file), then assembly again the remaining routine and ...
    Einar Saukas Einar Saukas June 2013 Brand new software
  • Beepola?Whats this 'Beepola' I keep hearing about? Is it easy to use? Is it for 48K machines or AY only? Where can I find it?

    ... into your own assembly code and CALL the routine, and it'll ... key press to exit the routine.
    Morkin Morkin July 2013 Development
  • FZX: a new standard format and driver for proportional fonts[B]FZX[/B] is a very compact and efficient (although extremely flexible and powerful) standard format to create new fonts for the ZX-Spectrum. It sup…

    ... doesnt talk about z80 or assembly language much at all, as ... />
    report_5 = 0x0c86 ; REPORT-5 routine in ROM
    ...
    jp ...
    u6c87 u6c87 August 2013 Brand new software
  • BIFROST* example: "Knights & Demons DX" source codeA package containing the source files of our multicolor game "Knights & Demons DX" is now available for download [URL="http://www.mediafire.com/?hbch…

    ... not! Although BIFROST* provides sub-routine [B]BIFROSTsetTile(px, py, ... instead to create another sub-routine ourselves. Fortunately implementing [B ... routine [B]sync()[/B]. It's only 5 bytes in Assembly ... . Because of this, sub-routine [B]changeTileNow(px, py, ...
    Einar Saukas Einar Saukas August 2013 Development
  • Compiler conventions for passing args/return valuesI've been mulling over this for a while, but I can't spot it covered anywhere. There are various methods for passing args and return values between …

    ... communicate more information to the assembly programmer.

    As an ... as can any other library routine that uses this function.
    assembly routines called from C):
    Alcoholics Anonymous Alcoholics Anonymous September 2013 Development
  • Squishing code up nice and small then unsquashing it in assemblyI refer of course to data compression. I've done a search and there are lots of good compressors, but I can't seem to find one that works in assembl…

    ... think Battle Bunny's LZ routine is what I'm after ... be able to get the assembly source from Gasman's command ...
    R-Tape R-Tape September 2013 Development
  • Z80 Assembler for Win7 PC (64-bit)Does anybody know where I can get a decent Z80 assembler that will work on my 64-bit Win7 PC? I tried the first one in the WoS utilities and it would…

    ... can just go straight into assembly if you want, and for ... drop print statements into your assembly to test stuff! [push ... anyone /learning/ assembly, or just working on a routine and not wanting ... higher level, owing to inline assembly, it's very nice indeed ...
    Gedlion Gedlion September 2013 Development
  • coding guruOk I'm looking for a to help me in my quest to do my first proper game. The 80's child in me thinks he can do it, But the 2013 man in me knows zip. …

    With the assembly or machine code,

    ... .
    2: use a rom routine. (print, border color, print at ... ....)
    5: get a input routine working.
    6: read data ...
    wibble wibble September 2013 Sinclair Miscellaneous
  • Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…

    ... " that can be specified at assembly time. The source for them ... different numbers into the "border" routine to give different colours during ...
    stephenw32768 stephenw32768 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…

    ... tried it. It was an assembly listing as a small loader ... to the Turbo loader/saver routine published in the same issue ...
    jamorski jamorski October 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…

    ... 'm searching for some small assembly snippet I can use to ... I could use the ROM routine (It would suffice, any pointers ... I'm asking for a routine :)

    No need for ... could include in your assembly a small routine to copy and patch ...
    jamorski jamorski October 2013 Development
  • SE BasicAfter 13 years of development I thought I'd run out of things to optimize, but it turns out I was wrong. However, I'm now running out of time to work…

    ... be entered directly.
    [*]Modular assembly listing.
    [*]Refactored code for ... readability.
    [*]ROM switching service routine.
    [*]SAVE now saves immediately ...
    chev chev October 2013 Sinclair Basic
  • Documentation of ZX Spectrum built-in functionsHi, Is there a documentation of the built-in ZX Spectrum 48+ functions (assembly)? I am thinking about something like the documentation included in …

    ... , and I was "programming" in assembly by using POKEs, so the ... instead and then call the routine directly.
    chev chev October 2013 Development
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