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<1…14151617181920…34>
  • 3 lines of funHello! I'm looking for a tattoo to remember forever our fabulous 8 bit era. A part the pictures I posted here [url]http://www.worldofspectrum.org/for…

    ...
    3 POKE v, PEEK v-2: PLOT 255*RND,175*RND ... : DRAW 99*RND, 99*RND, v*RND:POKE ...
    Geoff Geoff October 2011 Sinclair Basic
  • 3 lines of funHello! I'm looking for a tattoo to remember forever our fabulous 8 bit era. A part the pictures I posted here [url]http://www.worldofspectrum.org/for…

    [QUOTE=mcleod_ideafix;567783]Ok, this one is a little more than 3 lines (BASIC lines), but.... what if we code it in a more... "visual" way?

    Assuming your tatoo artist is precise enough, I'd suggest this code ;) (click to enlarge):
    [/ ...
    Geoff Geoff October 2011 Sinclair Basic
  • Display half a screenWorking in 128 Basic and saving screens to memory via - SAVE! "image" SCREEN$ . Is it possible to display just the top half (or the bottom half) of t…

    ... =0 TO 127:
    POKE 16384+a+b,255
    NEXT b ...
    Battle Bunny Battle Bunny October 2011 Sinclair Basic
  • Pixel engines for explosions...Hi... Iv a strange request... I was toying around with an old YS program, which can be found here: [url]http://www.users.globalnet.co.uk/~jg27paw4/ty…

    ... /> ;at. Choose the numbers to POKE into here..
    ;0 - normal ... a speed from 1 to 255 and then:
    half_vrange: DEFB ... Z,L61534
    LD E,255
    L61534: OR A
    kgmcneil kgmcneil October 2011 Development
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ... valeus from 255 to 0.
    buc1 ld (hl),b ;POKE value ... /> djnz buc1 ;next value to poke.
    inc hl ;next address ...
    cmonkey cmonkey October 2011 Hardware
  • Requesting a little help to identify the purpose of this 'add-on' to my Issue 2Hi everyone First of all it's my first post here so please go easy on me! I'm grateful to be accepted into your fine little club :smile: I probabl…

    ... 'fail' is when for any POKE'd value the return PEEK ... a quick BASIC proggie to POKE some values into one of ... the XOR of what you POKE'd, and what is PEEK ... memory locations, POKE a few values (say, 0 and 255) and print ...
    RetroTechie RetroTechie October 2011 Hardware
  • Pixel engines for explosions...Hi... Iv a strange request... I was toying around with an old YS program, which can be found here: [url]http://www.users.globalnet.co.uk/~jg27paw4/ty…

    ... /> ;at. Choose the numbers to POKE into here..
    ;0 - normal ... a speed from 1 to 255 and then:
    half_vrange: DEFB ... Z,L61534
    LD E,255
    L61534: OR A
    kgmcneil kgmcneil October 2011 Development
  • Up/Down Left/Right scrollCan anybody give a newbie some pointer to simple one char scrolling by pixel? I've looked at a lot of resources, but as you can imagine, it's all a …

    ... /> ....

    If you poke the data with shift=7 ... horizontal pixel coordinate 0-255. Within it, the ... .

    2- Poke the shifted sprite data into ... /> ; l = x coordinate 0-255
    ; b = sprite height ... l ; a = x coord 0-255
    and $07 ; a ...
    Alcoholics Anonymous Alcoholics Anonymous November 2011 Development
  • Mazes and Tremaux's AlgorithmI've done a version of Tremaux's maze solving algorithm which solves my current test maze with 400 junctions and 715 connections in a reasonably quic…

    ... k4,kY-k6;loc,:
    POKE a+bo+k2,PEEK (a ...
    Battle Bunny Battle Bunny November 2011 Development
  • Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…

    ... a random number from 0-255 in A.

    You ... to be clear, I can POKE the decimal values of Patrik ...
    Paddy Coleman Paddy Coleman December 2011 Development
  • Xor-shift random number generator for Z80[QUOTE=Patrik Rak;320244]Come on, people, [URL="http://www.jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia, that's the w…

    ... /> 130 REM a contains 0-255
    140 REM
    150 ...
    Paddy Coleman Paddy Coleman December 2011 Development
  • Arkanoid Hack - Your Sinclair Smash TipsRemember that Arkanoid hack in YS Smash Tips that didn't work? It does now... [CODE] 10 REM ARKANOID HACK 20 CLEAR 65535: LET C=1: LET D=23295 …

    ... ,31,62
    110 DATA 255,55,205,86,5,48 ... /> 260 DATA 254,33,38,255,1,100,0,62
    255,237,83
    330 DATA ... ,35
    390 DATA 62,255,50,71,64,50,80 ...
    jp jp December 2011 Development
  • Using ATTR detection in machine codeIs there a ROM routine that can be called that reads the ATTR value of a co-ordinate?

    ... ,(colour)
    ld (hl),a ;poke colour
    ret
    ;
    255 times
    ld b,a ...
    R-Tape R-Tape January 2012 Development
  • The curious case of the vanishing zerosRight, I'm back for more help guys This time I think I've figured out the code ok....but still it fails - well it works but only once... Basically …

    ... out how to use POKE USR commands to create ... player graphics
    170 POKE USR "p"+0,BIN [ ... [/I]011000
    180 POKE USR "p"+1,BIN ... [/I]011000
    190 POKE USR "p"+2,BIN ... 190 READ A
    200 POKE USR "P"+N, A
    220 DATA, 24, 24, 255, 24, 24, 24, 36, ...
    Rebelstar without a cause Rebelstar without a cause January 2012 Sinclair Basic
  • The curious case of the vanishing zerosRight, I'm back for more help guys This time I think I've figured out the code ok....but still it fails - well it works but only once... Basically …

    ... /> 190 READ A
    200 POKE USR "P"+N, A
    220 DATA, 24, 24, 255, 24, 24, 24, 36, 66 ...
    Wookiee Wookiee January 2012 Sinclair Basic
  • The curious case of the vanishing zerosRight, I'm back for more help guys This time I think I've figured out the code ok....but still it fails - well it works but only once... Basically …

    ... /> 190 READ A
    200 POKE USR "P"+N, A
    255, 24, 24, 24, 36, 66 ...
    jp jp January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... ,88,17,1,88,1,255,2,237,176,201
    POKE those numbers into memory. Then ... POKE the attribute you want into ...
    joefish joefish January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... /> 01 02 FF 001 002 255 LD BC,$2FF
    ED ... ]

    I will now POKE and test...

    Paddy
    Paddy Coleman Paddy Coleman January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... GO TO 140
    130 POKE a,b: LET a=a ...
    250 DATA 001,002,255
    260 DATA 237,176 ...
    Paddy Coleman Paddy Coleman January 2012 Sinclair Basic
  • Faster CLS...Hi Folks, Looking at the CLS command in the Spectrum ROM disassembly it seems rather complex. Does anyone know of a simpler/quicker routine that wi…

    ... GO TO 140
    130 POKE a,b: LET a=a ... ,120
    290 DATA 001,255,002
    300 DATA 237 ...
    Paddy Coleman Paddy Coleman January 2012 Sinclair Basic
  • Amazonia (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027280"]Amazonia[/URL], please add the following "known errors" des…

    ... />
    Fixed using POKE 50034,158: POKE 50439,108: POKE 49469,252: FOR ... f=49474 TO 54557: POKE f,PEEK (f+(f 'ATIRE ... using POKE 46883,7: POKE 46886,19: POKE 46891,9: POKE 46892,21: POKE 46893 ...
    Einar Saukas Einar Saukas January 2012 Infoseek database
  • Amazonia (BUGFIX)This is a bugfix for game [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027280"]Amazonia[/URL], please add the following "known errors" des…

    ... : POKE 47285,16: POKE 47286,26: POKE 47287,5: POKE 47288,16: POKE 47289,27: POKE ... 47290,2: POKE 47291,30: POKE 47292,34: POKE ... counter will overflow (underflow?) to 255:
    [CODE]
    bc7e: 1e ...
    Einar Saukas Einar Saukas January 2012 Infoseek database
  • A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…

    [QUOTE=Timmy;594378]Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how easy it actually is. (Actually I've already published this one some time ago, but this ...
    AndyOaks AndyOaks March 2012 Development
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... bfl_2frames()
    {
    // POKE 64937,0: POKE 64939,128: POKE 64940,0: REM ... ()
    {
    // POKE 64937,15: POKE 64939,64: POKE 64940,7: REM ... br /> scf
    ld a, 255
    ld ix, 48500
    scf
    ld a, 255
    ld ix, 56768
    Timmy Timmy March 2012 Brand new software
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... 0 TO 1
    110 POKE 48500+t*64+f*16 ... g*256+h)
    120 POKE 48500+t*64+f*16 ... FOR f=0 TO 80: POKE 65283+f,128+f: NEXT ... =Crisis;609557]and use tile 255 (none) leftdown since its ... QUOTE]

    Tile index 255 won't give you a ... f=0 TO 63: POKE 48500+X*64+f,0 ...
    Einar Saukas Einar Saukas March 2012 Brand new software
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... 609573][code]#define BIFROSTresetTileImages(addr) POKE Uinteger 64953, addr[/code][/ ... calling "BIFROSTsetTile(r, c, 255)" produces the following code:
    ld a, 255
    pop hl

    ld a, 255
    ; removed pop hl< ...
    Einar Saukas Einar Saukas March 2012 Brand new software
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... ]#define BIFROSTsetTile(row, col, tile) POKE 65283+(row)*9+(col), (tile ... that calling "BIFROSTsetTile(r, c, 255)" produces the following code:
    push hl
    ld a, 255
    pop hl

    boriel boriel March 2012 Brand new software
  • A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…

    ... , 65283/256
    ld (hl), 255
    [/CODE]Although the compiler ... />
    So basically:

    POKE 65283 + r * 9 + c
    boriel boriel March 2012 Brand new software
  • Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…

    ...
    30 READ n: POKE mcAddr+m,n
    40 ... 0 TO 255
    190 POKE fAddr,F
    200 POKE lAddr,F ...
    210 POKE xAddr,F
    260 POKE aAddr,A
    270 ... NEXT A
    280 POKE dAddr,D
    290 NEXT ...
    Korinel Korinel April 2012 Emulators
<1…14151617181920…34>

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