-
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…
... .jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia ... = x ^ (x > 1)
xor e
ld e,a ... -
CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... /forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80 ... -
New game: The curse of OddvilleDon't get too excited! :p Just wanted to share this because the coding of it is driving me mad, or rather the game designer is. The curse of Oddvil…
... /> It uses Patrick Rak's XOR Shift RND generator, and Einar's ... -
C.G.D - Classic Game Designer[b]UPDATE: August 07, 2013 AN UPDATED VERSION OF CGD IS NOW AVAILABLE, DETAILS HERE: [url]http://www.worldofspectrum.org/forums/showpost.php?p=7155…
... uses Patrick Rak's superb XOR Shift random number generator. Thanks to ... -
A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
... .jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia ... -
A scrolling starfield - help needed!I have been messing on my speccy again recently and tried to do a scrolling (parallax - maybe) starfield. I know how to scroll using machine code but…
... .jstatsoft.org/v08/i14/paper"]xor-shift generators[/URL] devised by Marsaglia ... -
Auto generated spritesLooking around for some graphics I came across [url]http://blog.disktree.net/?p=19[/url] , one of several such pages. Need the odd 8x8 UDG or two (…
... the original
XOR C
LD ... the original
XOR C
LD ... br /> ;; Patrik Rak
;; Xor-shift random number generator for Z80 ... (x > 1)
xor e
ld e,a ... -
Auto generated spritesLooking around for some graphics I came across [url]http://blog.disktree.net/?p=19[/url] , one of several such pages. Need the odd 8x8 UDG or two (…
... be worth exploring on the Xor-shift random number thread (check out ... -
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…
... I have said before - the xor-shift is the way to go ... -
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…
... ,r ;constantly cycled number,Patricks xor shift better
and 3 ;converts ... course, so using Patrick's XOR shift generator is best I think ... -
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…
... imply slower - for example, the xor-shift is extremely simple and yet ... the magic constants for the shift operations so the resulting shuffle ... much diehard tests than this xor-shift.
OTOH, it's ... -
Bug fixing woesGaahhhh! I've spent an afternoon off work agonizing over why my routine didn't work. It's something I'd already restarted so didn't want to wipe th…
... /> Been using Patrick Rak's Xor shift rnd generator, but stupidly forgot ... -
Bug fixing woesGaahhhh! I've spent an afternoon off work agonizing over why my routine didn't work. It's something I'd already restarted so didn't want to wipe th…
... /> It's not the old Xor Shift generator HL problem is it ... -
New game: The curse of OddvilleDon't get too excited! :p Just wanted to share this because the coding of it is driving me mad, or rather the game designer is. The curse of Oddvil…
... ]It uses Patrick Rak's XOR Shift RND generator, and Einar's ... -
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…
... looks very random (using the XOR shift). I don't understand your ... -
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…
... looks very random (using the XOR shift). I don't understand your ... ^ ( w 1) ^ w
XOR d
XOR e
ld h ... -
Deterministic random number generatorI'm looking for a random number generator in assembly which, given a seed, the generated sequence is always the same. You change the seed, you get a …
I think Patrick Rak's [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]XOR Shift RND generator[/URL] does the same. -
Deterministic random number generatorI'm looking for a random number generator in assembly which, given a seed, the generated sequence is always the same. You change the seed, you get a …
... /forums/showthread.php?p=651670"]XOR-shift[/URL] I provided, or the ... -
CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... =86"]Optimized Patrik Rak's Xor-shift random number generator[/URL], 28 ... -
CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... =86"]Optimized Patrik Rak's Xor-shift random number generator[/URL], 28 ... -
CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... the point of both mine Xor-Shift and CMWC generators to finally ... -
New Game: The Order of MazesI'm pleased to announce my first full game release since Flynn's Adventure in Bombland 4 years ago. It is called The Order of Mazes and you can downl…
... .worldofspectrum.org/forums/discussion/23070/xor-shift-random-number-generator-for-z80 ... /p1"]Patrik Rak's Xor Shift Generator[/url] which has a ... -
Can anyone show a slight diagram of how pokes work in a jet set willy game for example?I know its kind of something to do with machine code and Memory addresses etc but would be nice to see a youtube video or some drawings etc ? .Many t…
... familiar with hexadecimal, AND, OR, XOR, shift and rotate operators. Although any ... -
Disappearing/appearing effectI remember doing a small routine in BASIC which could be used to cover the attributes section randomly, until all 704 characters were filled with the…
... .worldofspectrum.org/forums/discussion/23070/xor-shift-random-number-generator-for-z80 ... -
Full-screen 32 columns bicolor engine NIRVANA+I'm glad to announce the release of [b]NIRVANA+ ENGINE[/b], providing support for bicolor graphics (multicolor 8x2) in 32 columns for all standard Sp…
... ] Your code starts with [b]XOR 0[/b]. I assume you ... A,0[/b] or [b]XOR A[/b] instead.
XOR SHIFT[/b] algorithm instead:
CMWC random number generator for Z80Seeing the interest regarding the [URL="http://www.worldofspectrum.org/forums/showthread.php?t=23070"]Xor-Shift random number generator for Z80[/URL]…
... .worldofspectrum.org/forums/discussion/23070/xor-shift-random-number-generator-for-z80 ...A sped up pixel-shift routine for 1-byte–wide spritesHere’s an optimized (for speed) real-time sprite shifting routine for sprites that are one byte wide. It uses no memory variables for storage of inte…
... data is aligned)
xor a ;clear A and Carry ... ;no? Make B our shift counter
ex af ... /> msl_shift
rr c ;shift through Carry
rra
xor c ;merge it with C ... /> ld a,(hl)
xor b
ld (hl), ...Red Shift updatedHere are some of the additions to Red Shift over the last week or so. * 8 Spectrum game reviews have been put up, including that of two type-ins (is…
... of the additions to Red Shift over the last week or ... direction and content for Red Shift.
DISCLAIMER: The term ... 'Red Shift' has no relation/bearing/affiliation ...Arcanoid - Red Shift re-incarnatedI hadn't updated my web site Red Shift for three months now and I decided that the time has come for just that. To begin with, I've changed the loo…
... updated my web site Red Shift for three months now and ... been re-named from "Red Shift" to "Arcanoid". I hope to ...Smooth Screen Scrolling RoutineHi everyone, this is a follow up to the thread on smooth screen scrolling. As promised here is the code for the routine. It's pretty long and fairl…
... B
AND 3 ;SHIFT POSITION 0-3
JR ... corner
ROWLOOP XOR A
LD (BLFLAG),A ... clear
XOR A
LD C,D ... E,A
XOR A
LD (DE),A ... />
FIVECOLS XOR A ;If preceding tile was ...
