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<1…15161718192021…34>
  • line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…

    ... don't need to preserve bc so it could be even ... faster.
    LD (COORDS),bc 20 T

    So ...
    rtunes rtunes October 2001 Sinclair Miscellaneous
  • line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…

    Or take it back (return to main prog says LD BC,(TEMPBC)

    remove LD BC,(COORDS)

    so 102-20 = 88.
    Dr BEEP Dr BEEP October 2001 Sinclair Miscellaneous
  • line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…

    So I see You have implemented the lookup tables as I suggested, and I think there isn't much better PLOT routine.
    But remember: we would like to have good LINE routine, not only PLOT.
    What can be improved?
    There is still an overhead for ...
    Mikie Mikie November 2001 Sinclair Miscellaneous
  • line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…

    ... /> ld b,a
    push bc
    ld b,l
    CALL pixeladdress; in: bc = (y,x) coordinate of pixel ... de,hl

    pop bc
    ld e,b ;guarda ...
    rtunes rtunes November 2001 Sinclair Miscellaneous
  • line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…

    ;
    ; Graph Library
    ; (c) SerzhSoft '03.10.96
    ; serzhsoft@mail.ru
    ;
    ;interface:
    ;
    ;procedures.
    ; MakePtsTab
    ; Pset
    ; Xset
    ; Preset
    ; Point
    ; Plot
    ; Bar
    ...
    SerzhSoft SerzhSoft January 2002 Sinclair Miscellaneous
  • PAW questionThis may not be the right place but anyways there it goes: I've been trying to figure out how to import graphic files in .SCR format in the PAW parse…

    ... the screen memory
    LD BC,2048*screensize ; the size of ... information at HL
    LD BC,256*screensize ; the size of ...
    cyborg cyborg November 2001 Sinclair Miscellaneous
  • Certain Games Wanted - Very Good Prices PaidHi I have been after a few games now for ages and have turned to this forum as the last resort, can you help? I will pay ?5.00 for each of the follo…

    ... ) - Durell
    Schizoids - Imagine
    BC Bill - Imagine

    Someone ...
    paul paul January 2002 Sales
  • adventure gamesI always liked text adventures and the speccy had loads,my favourites were Robin of sherwood,,Espionage island,,emerald isle,,dracula,,secret of st b…

    To make text adventure on a PC , try:

    [url="http://www.tela.bc.ca/tads-manual/"]http://www.tela.bc.ca/tads-manual/[/url]
    Dr BEEP Dr BEEP March 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…

    ... .

    ld bc,020h
    loop ldir
    ld bc,020h ; rather than loop with ... the last ld bc instruction doing it here ... we can use
    ; bc to subtract from hl before ... ; second line
    ld bc,736 ; counter
    ldir< ...
    Anonymous Anonymous June 2002 Games
  • Machine Code ChallengeHere's a challenge for all you Z80 programmers. Points to be awarded for elegance and brevity. (I haven't got the solution either) HL addresses the …

    ... the printer.
    Unfortunately the BC-reg must be larger than ...
    Dr BEEP Dr BEEP July 2002 Sinclair Miscellaneous
  • Machine CodeOk i had a spectrum when i was younger and only used it for playin games and typing simple BASIC programs - i mean really simple! Things like 10 Pri…

    ...
    [code]
    LD BC,23756
    LOOP CALL STACKBC ... ; ROM Routine to stack BC
    CALL PRINTSTACK ; ... print last value(=BC)
    LD A,(BC)
    CALL ... /> CALL PRINTSTACK
    LD A,(BC)
    CP 31
    Dr BEEP Dr BEEP July 2002 Sinclair Miscellaneous
  • Name of a gameWhen I was a kid there was a speccy game where you would play as a caveman and have to hit women over the head with your club and drag them back to y…

    It's BC Bill, I also found it in the darkest corners of my memory by receiving help from this forum. UGH has no women in it (and it's not as half as fun as BC Bill IMHO).
    Alessandro Grussu Alessandro Grussu July 2002 Games
  • Name of a gameWhen I was a kid there was a speccy game where you would play as a caveman and have to hit women over the head with your club and drag them back to y…

    It was BC Bill. Thanks for your help (god I love that game)
    megadrivechamps megadrivechamps July 2002 Games
  • adding colourThis my sound like a real stupid Q but when programing a picture how do i add colour like filling in shapes with colour. What kind of programming sh…

    ... /> ld hl,#5800
    ld bc,768
    l1 ld (hl ...
    inc hl
    dec bc
    ld a,b
    Dr BEEP Dr BEEP July 2002 Sinclair Miscellaneous
  • Microsoft swallows up RareI read in the paper today that microsoft have put in a takeover bid for Rare. No doubt the long lasting Ultimate games distribution problem will be o…

    ... , Steel Battalion (despite its price), BC, Ninja Gaiden and Unreal Championship ...
    Jazzbeaux Jazzbeaux October 2002 Games
  • Blank .dsk Disk images for use on EmulatorsIs there anywhere I can find a .dsk image of a blank read/write Spectrum +3 disk? X128 can read them, but can't create them :(

    ... is to trap the DEC BC opcode at $2144 in ROM ...
    Woody Woody October 2002 Emulators
  • Anyone got a copy of 'Z80 for primates'?This Z80 lark isnt easy, in fact it makes me feel very much like Washoe the chimp trying to learn learn sign language, I just dont think I've got the…

    ... 16 bit memory pointer
    BC = 16 bit counter
    B ...
    Anonymous Anonymous November 2002 Sinclair Miscellaneous
  • Anyone got a copy of 'Z80 for primates'?This Z80 lark isnt easy, in fact it makes me feel very much like Washoe the chimp trying to learn learn sign language, I just dont think I've got the…

    ... 16 bit memory pointer
    BC = 16 bit counter
    B ...
    Anonymous Anonymous November 2002 Sinclair Miscellaneous
  • spectrum + 3 disksi have in stock quite a few of the spectrum + 3 disk titles on the mia list , who do i send them to ? i need to know asap please Andy

    ... /> Orion
    Lode Runner
    BC's Quest
    F1 Simulator ...
    Gilby Gilby November 2002 MIA/STP/SDP
  • spectrum + 3 disksi have in stock quite a few of the spectrum + 3 disk titles on the mia list , who do i send them to ? i need to know asap please Andy

    ...
    Barbarian Psygnosis Spectrum
    BC's Quest For Tires Software ...
    Andrew Barker Andrew Barker November 2002 MIA/STP/SDP
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... DE,HIGHBYTE + 1
    LD BC,257
    LD A,VECTOR ...
    cyborg cyborg January 2003 Sinclair Basic
  • Basic and AY musicis it possible to play an ay-music in background while a basic program is running?

    ... DE,HIGHBYTE + 1
    LD BC,257
    LD A,VECTOR ...
    Dr BEEP Dr BEEP January 2003 Sinclair Basic
  • Horace Goes SkiingHi! I am selling an original copy of Horace Goes Skiing for the 16k/48k Speccy. If I don't have any offers within the next few days, I will put the i…

    ... .

    I mean take BC's Quest, I sold one ...
    Andrew Barker Andrew Barker January 2003 Sales
  • Z80 AssemblerSome of you may know that I'm working on a Z80 assembler. I thought I'd start a thread so I can see what people think and what they might want to see…

    ... source,target,size
    LD BC,@@3
    LD DE,@@2 ...
    cyborg cyborg February 2003 Sinclair Miscellaneous
  • BC Bill does this game work with a emulator?Can anyone get this game running with a emulator. I get as far as the main screen but can't start the game

    mmmmm, maybe i'm thinking of BC's Quest for Tires!!!

    sorry, no idea about BC Bill ;)

    sigh
    pigdog pigdog February 2003 Games
  • BC Bill does this game work with a emulator?Can anyone get this game running with a emulator. I get as far as the main screen but can't start the game

    I blame the film "2000 years BC" starring that bird Raquel welsh
    Pollster Pollster February 2003 Games
  • BC Bill does this game work with a emulator?Can anyone get this game running with a emulator. I get as far as the main screen but can't start the game

    ... are not alone in your BC Bill start-game woes Pollster ...
    Refrenz Refrenz February 2003 Games
  • BC Bill does this game work with a emulator?Can anyone get this game running with a emulator. I get as far as the main screen but can't start the game

    Having reached the ripe old age of 107 (and still going strong), bonked many a cavelady (over the head), squished enough running things to make McDonalds proud and spawned many offspring, here is the question: Is there any end to BC Bill?
    MatGubbins MatGubbins February 2003 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…

    ... (eg POP HL, DE, BC, IX, IY, BC',DE',HL' and rotate ...
    cyborg cyborg March 2003 Sinclair Miscellaneous
  • Question about CP Z80 instructionSorry if this is the wrong folder, but it seems the most appropriate. When performing a CP instruction, is the P flag set when the compared values …

    The P/V flag is used as a overflow flag with 8bit arithmetic instructions. Also its overflow with ADC/SBC HL,BC/DE/HL/SP and NEG.

    Fraser.
    Fraser Fraser March 2003 Emulators
<1…15161718192021…34>

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