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<1234567…34>
  • Help loading OPUS data block ?Hi folks, A while back I obtained a Daton Software Card Games compilation which will be in the next Vault update: http://www.worldofspectrum.org/inf…

    ... 1;"WHIST$"CODE : RANDOMIZE 47912: LET Z=USR 50877.
    So the address ... RANDOMIZE is used with a LET Z=USR, would this command
    ... not mean the same - RANDOMIZE USR 50877 ?

    I ... *1;"OPUS$"CODE: RANDOMIZE 40000: LET Z=USR 44009.

    I ...
    Andrew Barker Andrew Barker May 2009 Sinclair Miscellaneous
  • Help loading OPUS data block ?Hi folks, A while back I obtained a Daton Software Card Games compilation which will be in the next Vault update: http://www.worldofspectrum.org/inf…

    ... *1;"OPUS$"CODE: RANDOMIZE 40000: LET z=USR 43983.

    The RANDOMIZE ...
    jonathan jonathan May 2009 Sinclair Miscellaneous
  • Help loading OPUS data block ?Hi folks, A while back I obtained a Daton Software Card Games compilation which will be in the next Vault update: http://www.worldofspectrum.org/inf…

    ... :READ A$(Z):NEXT Z
    RANDOMIZE 40000:LET Z=USR 43983
    LET TF=1 ... :FOR Z=1 TO 6 ... 5;BRIGHT 1;Z;"-";:NEXT Z
    LET P=7:FOR Z=TF TO ... ;A$(Z):LET P=P+1:NEXT Z
    IF INKEY$ ="Z"OR INKEY$ ="z ...
    Andrew Barker Andrew Barker May 2009 Sinclair Miscellaneous
  • Lunar Jetman and +3Has anybody got Lunar Jetman to work on native +3 mode? Converted to disk , will load up fine but freezes on blank screen before the game starts. Aft…

    ... the final "RANDOMIZE USR xxxxx" to "RANDOMIZE xxxxx:LET z=USR 23762"

    nuggetreggae nuggetreggae May 2010 Games
  • Microdrive usageAnyone here know about microdrive files? Had a few carts in, all have stuff on, heres an example cat 1 with the error message i get for every single …

    ... 5000: STOP

    5000 LET z$="": CAT #14,d
    5010 ... INVERSE 1;"Title: ";z$( TO 10)
    5030 LET z$=z$(13 TO )
    Battle Bunny Battle Bunny November 2014 Sinclair Miscellaneous
  • Removal of "reset on break" protection (old basic program)Hi, Long time lurker, here! This is hopefully quite simple but there's an old basic game in the I'd like to bring up to date / take a look at …

    ... d used the CHR$ USR caper helpfully provided above. ... 9665 REM LET z=USR 64000 < THIS
    9690 REM LET z=USR 64690 ... < THIS
    9695 BRIGHT 0
    9700 LET ... ; THIS
    9740 LET U=1: PRINT AT 13 ... lt; THIS
    9755 LET E=1: IF E> ...
    briscaF1 briscaF1 August 2015 Sinclair Basic
  • Comp.Sys.Sinclair Crap Games Competition 2017As the creator of the second-least crap game in last year's competition (and the only mug stupid enough to agree to host it this year) I am proud/ash…

    ... : BRIGHT 1
    220 LET x=15: LET y=17
    230 ... LET z=USR 63033
    260 REM Display without scrolling:
    270 LET z=USR 63032 ... ): IF a0 AND a66 THEN LET z=USR 63032: GO TO 580
    560 LET z=USR (63000+ABS (c))
    570 ...
    joefish joefish January 2017 Games
  • Thought this would be simple... Z80Hi Folks, Started to read "Beyond simple BASIC, Delving Deeper into your ZX Spectrum" by Dilwyn Jones. This is a great book and I came across the…

    ... /> or a ; Sets Z flag is A is zero ...
    jp z,PAINT_POLYGON ; If Y is ... LET X=0: LET Y=0: LET W=32: LET H=24
    140 LET ... /> 250 REM
    260 LET Z=USR 63005
    270 RETURN
    Paddy Coleman Paddy Coleman September 2017 Development
  • Amazing Short Type-InsHey all ! Been having some pretty stressfull days lately so I tought I would type in some games. There was a very nice type-in book here in Slovenia…

    ... : POKE USR "a"+f,t: NEXT f
    30 LET b$="8 ... : CLS
    40 LET x=10: LET y=19: LET a$=""
    50 ... FOR f=10 TO 19: LET a$=a$+"10"+STR$ f ... GO SUB 220
    70 LET z$=INKEY$: IF z$>"4" AND ...
    Tom-Cat Tom-Cat March 2006 Games
  • Usr 0 ?I'm not sure I've ever seen this explained before, but why do some programs (only demos, as far as I can see, so far) need USR 0 mode when run on a 1…

    ... />
    I know that USR 0 simply causes the CPU ... the same as PRINT USR 0, LET a=USR 0, etc, of ... advantages for the program does USR 0 mode offer over ... program that might require a USR 0 style setup) could, ... place, and do whatever else USR 0 mode does, then ...
    ewgf ewgf December 2008 Sinclair Miscellaneous
  • New for 2009 - mc onelinersI found the limit of one line and one screen's worth of program really useful in (re-)learning BASIC, so I've decided to carry the format over into m…

    ... ,225,251,201: LET z=33001: FOR j=z TO z+167: READ b ... j: PRINT AT 0,6;USR 33001;AT 0,0;"score ... ?
    cp 0
    jr z,gameover
    ld a,8 ...
    cp 0
    jr z, roadleft
    inc hl
    bigjon bigjon December 2008 Development
  • automatic relocating of non-relocatable codeI was pondering upon the problem of changing absolute addresses used by CALL, JP, etc. when code is moved, without reassembling at the new location; …

    ... eventually remembered that a USR call puts its address ... here's the routine; "LET bc=USR adjust" will make any ... from LOCATE
    ret z ;return if no displacement< ... /> or l
    jr z,GET_SP

    add ...
    Battle Bunny Battle Bunny August 2011 Development
  • Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…

    ... /> POKE startaddress+1,0: LET l = USR startaddress: REM will return the ... key is pressed
    jr z,gk_key_is_pressed
    ;key is not ... of the string
    ret z ; so exit
    rst ... bits I want
    jr z,gdk_none ; nothing pressed? ok, ...
    polomint polomint September 2011 Development
  • Ideas for speeding up this BASIC routine?This loop can take up to 2 minutes to run, depending upon the content of the screen being scanned, about 70% of that time being taken up by lines 105…

    ... )? Don't worry about the USR calls, they don't take ... $="n" THEN POKE 23678,y: LET y=USR toprow:
    IF NOT ... TO 1082
    1052 LET minx=tci: LET maxx=0
    1053 ... FOR z=y TO (y-my ...
    Battle Bunny Battle Bunny September 2012 Sinclair Basic
  • 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…

    ... /> 50 LET Z=CODE A$(2)-48: IF Z>9 THEN LET Z=Z-7 ...
    60 POKE X,16*Y+Z
    70 LET ... returned, you type in PRINT USR 61440 (or whereever you decided ... a
    [code]
    PRINT USR 61440
    [/code]
    Ohhhh ...
    wibble wibble August 2013 Development
  • Help With AY Music Program in BASICHi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker…

    ... READ y
    34 POKE USR "b"+x,y: REM Custom ... READ y
    44 POKE USR "c"+x,y: REM Custom ... READ y
    104 POKE USR "i"+x,y: REM Volume ... READ y
    114 POKE USR "j"+x,y: REM Volume ... channel 3 (tres).
    280 LET z$="": REM Channel 3 string, starts ...
    RetroPhase2014 RetroPhase2014 December 2015 Sinclair Basic
  • Flood Fill IssueHi Folks, Came across the following Flood Fill routine by John Metcalf: [code]; scanline fill by John Metcalf ; call with d=x-coord, e=y-coo…

    ... 60020 B7
    jr z,goright 60021 28 0D
    jr z,rightedge 60034 28 12
    jr z,rightedge 60039 28 0D
    ret z 60095 C8
    inc ... 100 CLEAR 60000
    110 LET A=60000
    120 ...
    Paddy Coleman Paddy Coleman August 2017 Development
  • De zeven sleutels van TARKUSI've decided to type in the game "De zeven sleutels van TARKUS" from a book I have for many years now. And, it seems the game as it was printed in…

    ... LET k=0
    50 LET l=83
    60 LET n=0: LET z ... =0: LET a=0: LET o=0: LET w=0 ... 80 REM ===HOOFDROUTINE===
    90 LET dc=0
    100 INK ... a(l,2)=1 THEN LET z=1: GO SUB 1460< ... 200 IF dc=1 THEN LET a$=INKEY$: IF a$="" THEN ...
    Timmy Timmy August 2022 Sinclair Basic
  • Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…

    ... and print out.

    Let's now choose a location ...
    BadBeard BadBeard August 2003 Sinclair Miscellaneous
  • 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…

    ... /> let r = USR 32768: REM move 3,100,20
    let r = USR 32768 ... , "move 3,100,20"
    let r = USR 32768 ... )
    or a
    ret z
    inc hl
    push ... places :-)

    z88dk will let you develop very quickly but ...
    Alcoholics Anonymous Alcoholics Anonymous January 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... CODE]
    1 DEF FN z$(x)=CHR$ 22+CHR$ (x ... /> READ n:
    POKE USR "a"+f,n:
    ... /> NEXT f:
    LET i=CODE INKEY$-48:
    LET d=7*((i=8)-( ... LET a=FN m(z+d):
    LET b=FN m(z+d ... LET m$(z+d+d)="($"(1+b/7):
    LET z=z+d:
    LET m$(z ...
    Einar Saukas Einar Saukas August 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... br /> READ n:
    POKE USR "b"+w+4,n:
    z+31):
    NEXT z:
    LET i=CODE INKEY ... $-48:
    LET d=w ... /> LET a=FN m(z+d):
    LET b=FN m(z+d ... /> LET m$(z+d+d)="($"(1+b/7):
    LET z=z+d:
    LET m$(z)="
    Einar Saukas Einar Saukas August 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... CODE]
    1 DEF FN z$(x)=CHR$ 22+CHR$ (x ... /> READ n:
    POKE USR "a"+f,n:
    ... /> NEXT f:
    LET i=CODE INKEY$-48:
    LET d=7*((i=8)-( ... LET a=FN m(z+d):
    LET b=FN m(z+d ... LET m$(z+d+d)="($"(1+b/7):
    LET z=z+d:
    LET m$(z ...
    Einar Saukas Einar Saukas August 2007 Development
  • Oneliner contestHello to you all, I dare you to make a program on 1 BASIC line. Here is the place to sent your ONELINERS [url]http://www.zxspectrum.00freehost.co…

    ... CODE]
    1 DEF FN z$(x)=CHR$ 22+CHR$ ( ... br /> POKE USR "a"+z+5,n:
    NEXT z:
    ... /> NEXT f:
    LET i=CODE INKEY$-48:
    LET d=7*((i=8)-( ... LET a=FN m(z+d):
    LET b=FN m(z+ ... LET m$(z+d+d)="($"(1+b/7):
    LET z=z+d:
    LET m$(z ...
    Einar Saukas Einar Saukas August 2007 Development
  • New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…

    ... /> FOR f=-149 TO 0*USR 7766:
    RESTORE :
    ... READ n,m(608),p,z:
    POKE n,3+3 ... *(m(p)=0)*m(p+z+z):
    READ m(p), ... m(p+z):
    POKE 22528+p,48 ... 22528+p+z,48:
    NEXT f:
    RESTORE :
    LET k ...
    Einar Saukas Einar Saukas March 2008 Development
  • New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…

    ... 862):
    READ p,z,n,g:
    FOR ... g:
    LET p=p-z:
    LET m(p)=1 ... RND*3+1):
    LET z=j-2*j*m( ... LET k=p/32-z/16:
    POKE (m(p-z-z)1 ... )*(kINT k)*n,4:
    LET p= ... POKE n,9:
    LET k=CODE INKEY$:
    POKE ...
    Einar Saukas Einar Saukas March 2008 Development
  • St. Michael Micromasters: Computer GamesHi, The [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000988"]St. Michael Micromasters: Computer Games[/URL] book doesn't currently have a…

    ... )*w:next z:if k$=chr$(m+48) then let t=t ... z:gosub 4000:print" ":goto 550
    530 let v=p(m):let ...
    270 let c(a)=c:gosub 4000:print z$
    280 ... if k$="z" and h>1 then let h=h-1 ... usr"a"+n,d
    1010 next n:let u$=chr$144:let z ...
    c1541 c1541 March 2008 MIA/STP/SDP
  • St. Michael Micromasters: Computer GamesHi, The [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=2000988"]St. Michael Micromasters: Computer Games[/URL] book doesn't currently have a…

    ... let w=30:let d=21:let g=10:let j=7
    160 let z ... at r,c;" ":let a=usr z
    290 let c=nc:gosub 4000 ... usr"a"+n,d
    1010 next n:let u$=chr$144:let z ... usr"a"+n,d
    1010 next n:let u$=chr$144:let z ...
    c1541 c1541 March 2008 MIA/STP/SDP
  • New oneliners for 2008[INDENT][INDENT][INDENT]Here's my attempt at a first-person-perspective 3d game in one line of BASIC. It's called 'wormhole', and you've got to get t…

    ... this:

    [CODE]
    LET x=p/2-y*32 ... :
    ...
    LET d=32*((10>y ...
    Einar Saukas Einar Saukas March 2008 Development
<1234567…34>

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