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<1…13141516171819…34>
  • Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …

    ... data is 3 bytes per list item 2046 bytes get used, 682 ... the video hardware ).

    Routine:
    [init]
    [game loop ... page and call the _blit_all routine ( or whichever is appropriate )
    DonkeyPong DonkeyPong January 2007 Development
  • Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…

    ... 16k), as does the interrupt routine -- these two things are constantly ... line from your machine code routine. Eg:

    [code]
    bytes
    defm === put these ascii ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • Saving MCI want to save some code from memory with, for instance, SAVE "aname" CODE 40000,500 But I want it to load to 32768 with the LOAD "" CODE command (no…

    ... out by calling the SA-BYTES routine from machine code. Your machine ...
    Philip Kendall Philip Kendall January 2007 Sinclair Basic
  • RFC: 64 column font codeIn BASIC, type CLEAR 49999 then import the code at 50000. Then type RANDOMIZE USR 50000. This will create a new channel and attach stream #4 to it. A…

    ... of an extra ~300 bytes onto the size. Your ... changed to one print routine and a mask selected ... a couple of those bytes used up in the ... thoughts, mind you... the routine looks pretty good as is ... something similar (64x32 print routine) but rather than streams ...
    icabod icabod January 2007 Development
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... routines is easy (a print routine is relatively tiny code)... but ... 's another 500 or so bytes added to the size.
    icabod icabod February 2007 Development
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... routines is easy (a print routine is relatively tiny code)... but ... 's another 500 or so bytes added to the size.[/QUOTE ...
    glancaster glancaster February 2007 Development
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... that the actual Z80 disassember routine was written by John Kerr ... as it has a few bytes of stack it doesn't ...
    Geoff Geoff February 2007 Development
  • Monitor/debugger that doesn't use the Speccy ROM?Was there ever a Spectrum monitor/debugger released that didn't use the ROM, for key input and character output routines? The reason I ask is that i…

    ... detection, character set and scrolling routine. With all this in place ... patch uses an extra 1526 bytes, which you should take into ...
    glancaster glancaster February 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... #7465 you will see the routine. The A register at this ... that each level has 8 bytes (#74C9 lv1, #74D1 lv2, #74D9 ...
    Mr. Anonymous Mr. Anonymous February 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... as in hand.

    Routine is at #7C2A.

    bytes are the bomb routine and then there's ... see #05 (current) #0E #80 (routine) then another two 5s the ...
    Mr. Anonymous Mr. Anonymous February 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... CHARS system variable. Then 8 bytes are read out and poked ... screen memory by the PRINT routine. Just like a UDG!
    routine outputs text it grabs them ...
    Dunny Dunny February 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... is that you specify the routine you want to jump to ... gun and mace, its 2 bytes, 1st byte is pickup code ... is mace. Up above the routine for the table there is ... . How do you specify the routine to jump to on pickup ...
    FrankT FrankT March 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    [QUOTE=Woody;175128]blah[/QUOTE]

    Here he is! :)

    Edit:

    Here's the other info: A bit quick otherwise it'd have been weekend.

    table a1f6
    ========

    (this will need relocating/updating ...
    Mr. Anonymous Mr. Anonymous March 2007 Development
  • Screen$ disappearanceGreetings to all developers :D As you know, I have been playing around with Professional Adventure Writer and was making a few tests in the adventur…

    ... you don`t want the 'Bytes: name' message printed and spoiling ... trap for the rom save routine. Would it be possible to ...
    FrankT FrankT March 2007 Development
  • Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…

    ... , #E3, #E4 in sequence. The routine is placed directly after any ... got it down to 26 bytes. At the moment it will ...
    FrankT FrankT March 2007 Development
  • Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…

    ... ]Is there not a ROM routine that already does exactly this ... /> There isn't a ROM routine that does exactly that but ... , it will be about 50 bytes long. It wouldn't actually ...
    BloodBaz BloodBaz March 2007 Sinclair Basic
  • Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…

    ... up, the screen says "3**** bytes free", while the machine is ... combination of PEEK and ROM routine call for it.

    piters piters March 2007 Hardware
  • Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…

    ... ]Thank you! One question: Your routine copies a character from coordinates ... wish) to a buffer (12 bytes per function) - if this suffices ...
    BloodBaz BloodBaz March 2007 Sinclair Basic
  • Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…

    ... the latter would need 12 bytes.

    If you could ... regarding the scr to udg routine. :)

    Thanks guys ...
    zxbruno zxbruno March 2007 Sinclair Basic
  • Adding AY music to your plogramI'd like to add some nice tune to my program written in machine code. I am not new to assembler programming but with music programming I have no expe…

    ... may end with about 400 bytes free and thought I could ... need just an short assembler routine that would play e.g ...
    Ralf Ralf March 2007 Development
  • ResiDOS v2.00 releasedI've just posted a major new release of ResiDOS, at: [URL="http://www.worldofspectrum.org/residos/"]http://www.worldofspectrum.org/residos/[/URL] T…

    ... bank
    [*]Copy the flashing routine into main Spectrum memory
    bytes are kept up-to-date ...
    glancaster glancaster April 2007 Hardware
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    Here's my screen clearing routine, can't remember where I ... loop and saved a few bytes of code and it would ... . That will save a few bytes and as you get to ...
    rich_chandler rich_chandler April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ...
    Fair 'nuff. Your routine is slower though :-) Jumps, relative ... bc" business and count bytes rather than lines:
    ... ld bc,32 ;number of bytes per line
    ldir ... /> BC counts the 6144 bytes total transferred (no need to ...
    Alcoholics Anonymous Alcoholics Anonymous April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... are encoded in two opcode bytes (they aren't shared by ... , I´m creating a little routine to get Video Adres from ...
    HexDump HexDump April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... can be calculated by another routine.
    ; example of table....

    Table is 256 bytes long. If you don't ... , then you only need 128 bytes.

    That's it ...
    omega omega April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... can be calculated by another routine.
    ; example of table....

    Table is 256 bytes long. If you don't ... , then you only need 128 bytes.

    That's it ...
    bobs bobs April 2007 Development
  • My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…

    ... a bit memory hungry (5888 bytes including tables, excluding some init ... can of course modify this routine as much as you want ...
    omega omega April 2007 Development
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... remember extracting the sound effects routine too, which I didn't ... 't quite remember how many bytes defined each effect but I ...
    obo obo April 2007 Games
  • Possibly a little OT: Exporting ROM function addresses to the Z88DKOK, so I'm using the Z88DK. It's entirely possible that some documentation has bypassed me. But assume I have a function in ROM, say, at address 0xF0…

    ... .o bar.o baz.o -lm
    [/code]

    However ... .bin bar.o foorom.o -lm
    [/code]

    But ... .bin foorom.o bar.c -lm
    [/code]

    I ... -functional (it's about 150 bytes long, whereas if I do ...
    Winston Winston April 2007 Development
  • Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…

    ... remember extracting the sound effects routine too, which I didn't ... 't quite remember how many bytes defined each effect but I ...
    rich_chandler rich_chandler April 2007 Games
<1…13141516171819…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

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lm 190 262
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