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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…
... that I use the basic rnd function but there's no ... you suggest, basic rnd plot on left, rakky rnd on the right).
rnd.png[/IMG][IMG]http://i1142 ... -
RND cyclical behaviourGood evening. I'm playing with RND function to show its cyclical behaviour, i.e. after 65536 calls to it, the next one will return the same value of …
... .
I'm playing with RND function to show its cyclical ...
15 LET r=INT (RND*n)
20 LET y ... PRINT n: STOP
50 PLOT x,y
60 NEXT ... -
Where does the the Spectrum store the PLOT position ?So try this and it works just fine. The Spectrum must store the PLOT position somewhere as the line moves along. I'm sure someone knows where this is…
... . The Spectrum must store the PLOT position somewhere as the line ...
10 PLOT 0,0
20 DRAW RND*20,RND*20
Non-repetitive RNDHi guys) Perhaps, some of you already encountered a situation, when one needed a set of [b]unique [/b](pseudo-)random values, say, from zero to 25…
... /check required. For instance, the RND routine is but a formula ... , [b]Timmy [/b]and [b]Hikoki[/b]! I guess such a ... from Timmy.
The whole PLOT-line isn't needed. You ...
40 let r= int(rnd*f)+1
50 let ...The Non Randomness of Sam BasicHows about this for weird. Hardly ever bothered with such simple stuff before but this is what I just did on the Sam ( as in a real one now I've got …
... ):
10 LET x=RND* 255
20 LET y ... LET p=RND* 16
40 PEN p
50 PLOT x ...Happy birthday RNDThink of a number between 0-100 RND, go on, any number. Huppy Burthus-day.
Think of a number between 0-100 RND, go on, any number.
Huppy Burthus-day.the Plot - how to play?anyone tried to play this thingy? even with kempston chosen can't find the proper way to use the controls and to do anything :confused: just able …
... .... is this all of the plot down there?
(no passing ...BASIC Keyword ReferenceRealised that the Sinclair Basic section would be a better place for discussion of BASIC keywords, so for reference the old thread is in [thread=2005…
... : M
CODE : E : I PLOT : K : Q
CONTINUE : K ... : Y
EXP : E : X RND : E : T
FLASH : E ...Vector font in BASiCHi guys) Some fifteen years ago I saw a quite short BASIC prog that could simulate a vector font with size/ thickness/ italicization params. I remem…
... BORDER 2: CLS
210 PLOT 20,165: DRAW 0,-145 ... 2: LET j=INT 14-(RND*12): FOR z=18 TO ... IF o>2 THEN PLOT x+(j>2)+w ...Obtuse One-LinerFollowing a request in another thread, this could almost be crammed into one line. It uses a simple ON ERR CONTINUE to give a continuous display. [c…
Following a request in another thread, this could almost be crammed into one line.
It uses a simple ON ERR CONTINUE to give a continuous display.
[code]
10 INK RND*6
20 IF RNDBirthday PlotsHello all; When browsing the web, I stumbled across an oddity known as Birthday Plots. In effect somebody enters a numeric date and the computer prin…
... )*0.01
50 I=RND(-Z*0.0000001)
60 ... I=INT(RND(Z)*10)+5
70 ...
100 R[J,1]=RND(Z)
110 IF R ... ]
150 R[J,2]=RND(Z)
160 IF R ... TO I+1
260 PLOT R[K,1],R[K ... /> 310 NEXT J
320 PLOT U1,U2,1
330 ...problem with RND (or maybe INT)I'm using this statement: LET m=(INT (RND*sn)+k1)*k2-k1 to give a pointer m to a 2-byte segment of a string l$. Items k1 & k2 are integer constants…
... :
LET m=(INT (RND*sn)+k1)*k2-k1
RND*sn)+k1)*k2-k1: PRINT ...RND CommandsExactly how random are they? Reason I ask is I'm using 4 of them to generate a random number, the value of which then assigns movement commands to f…
... seem to recall a RANDOMIZE RND command which I've entered ...
930 LET k=INT (RND*8)
940 LET l ... =INT (RND*8)
950 LET m ... =INT (RND*8)
960 LET n ...RND numberHow do I go about selecting from the numbers 4,9,14 and 19? (RND*4)*5-1 ????? :-?
How do I go about selecting from the numbers 4,9,14 and 19?
(RND*4)*5-1 ????? :-?Basic BASIC help needed RNDHi all, I have recently re-discovered an old program I wrote in the early 90s which would do generate random lottery numbers. I know little now, an…
Help needed... RND in machine codeI have been battling away trying to convert a simple BASIC routine (below) to machine code, but to no avail. The routine is used to fire 2 bullets a…
... flummoxed, mainly due to the RND equation!
Any ideas ...problems with rndGot past the whole INKEY$ issue and now am trying to pin down the combat section of the game. got a basic combat routine however, when i try and gen…
... LET PH=INT (RND*6)+(INT (RND*6))+(INT (RND*6)): LET PD ... =INT (RND*6): LET MH=INT (RND ... *18): LET MD=INT (RND*6)
50 ...Graph Plothi! please, help with code: [PHP]For x=-100 To 100 For y=-100 To 100 If (x/2-25)*(x/2-25)+(y-50)*(y-50)<200 Or (x/2+25)*(x/2+25)+(y-50)*(y-50)<200 th…
hi! please, help with code:
[PHP]For x=-100 To 100
For y=-100 To 100
If (x/2-25)*(x/2-25)+(y-50)*(y-50)Hikoki's new gameSo putting together all Hikoki's suggestions: This is going to be an arcade maze but also a vertical/horizontal scrolling game; with puzzle element…
So putting together all Hikoki's suggestions:
This ... /> :D
Just kidding Hikoki ;) I am sure you will ...Convert AT co-ordinates to PLOT co-ordinatesHow do you convert the 2 from MC? I don't know how to convert the vertical value as they're differently ordered... Heres what I have so far: [CODE]…
...
y defb 0 ;calculated plot points
ld a ... /> ld (x),a ;store vertical plot point
ret[/CODE]GEDit syntax highlighting for Boriel's ZX BasicHi! I just tailored this syntax highlighting code and would like to share with he community. Suggestions are always welcome, though the file works w…
Why no PLOT, etc. on bottom two lines?I was pondering if there was any way to get PLOT, etc. to address the full screen from BASIC without having to write a few lines of assembler to bypa…
... was any way to get PLOT, etc. to address the full ... A,$AF)
then PLOT, DRAW, CIRCLE, POINT will all ...ZXSpin plotIs there a way I can plot on ZXSpin?;)
Is there a way I can plot on ZXSpin?;)A game from an other machine.if someone interesting, this is a game I created in 1989. this is the basic source, maybe somebody can convert to specy. An image: http://www.ep128.…
... 6,STYLE 77,PITCH 55+RND(10),LEFT 40,RIGHT 40 ...random number generator without using rnd in basicwhat is the simplest way to generate random numbers in basic (0-255), without using the rnd statement? i also want it to always generate the same…
what is the simplest way to generate random numbers in basic (0-255), without using the rnd statement?
i also want it to always generate the same numbers over and over again.Plot questionHi all Is there a way of detecting whether a plot position has been plotted, or whether it's still 'empty' ? In short, I need to know for a pro…
... way of detecting whether a plot position has been plotted, or ... line being drawn from one plot position to another, growing in ...Elon Musks's Blastar (Conversion)Back in 1984, the 12 year old Elon Musk wrote a rudimentary video game for his SpectraVideo SV-328 (another Z80 Microcomputer) [url="https://www.t…
Back in 1984, the 12 year old Elon Musk wrote a rudimentary video game for his SpectraVideo SV-328 (another Z80 Microcomputer)
[url="https://www.theverge.com/2015/6/9/8752333/elon-musk-blastar-pc-game"]https://www.theverge.com/2015/6/9/ ...Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…
... br /> 110 LET x=40+RND*176
120 LET ... y=40+RND*95
130 LET ... r=10+RND*30
140 CIRCLE ... pattern
310 IF RND>0.8 THEN GO ... LET o=15624+8*INT(RND*30)
330 REM ... br /> 410 LET c=56+RND*7
420 POKE ...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…
I'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 the book, didn't work.
So there are some modifications in there to make it work ...
