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OptimisationI've participated in several thread hijacks about this, so perhaps I should open a new thread. Et VIOLA! Here it is! Knuth, who was earlier reporte…
... execution of a loop or sort algorithm or some such, and they ... -
OptimisationI've participated in several thread hijacks about this, so perhaps I should open a new thread. Et VIOLA! Here it is! Knuth, who was earlier reporte…
... execution of a loop or sort algorithm or some such, and they ... case of "pick a better algorithm". No amount of optimising that ... C implementation of a bad algorithm (worst possible thing to do ... -
Route Diagram Search Algorithm?With regard to a diagram of the sort of which the picture below is a simple example. Given that routes are restricted to those going down the screen,…
... to a diagram of the sort of which the picture below ... so on). Is there an algorithm whereby I can determine if ... -
Dan Dare 256 colour project many may not be aware of.I still need/want to try Vladimir's emulator. But I think many people here aren't aware of another 256 colour project, which was mentioned on C.S.S. …
... /> on the real site. The algorithm is trivial, and is perfectly ... -
In Machine Code, what is the quickest way to sort bytes?I am playing around with some ordering of sprites, where I want to order them by vertical position. I used some Rodnay Zaks code to order some bytes…
... (Note, I only need to sort bytes, not 16 bit numbers ... -
monty mole 3d type game thingy sort offthink trap door but with monty mole instead of berk. thats the kinda thing we are going for. sort of anyhoo - couple of shots. [url]http://www.…
... thing we are going for. sort of
anyhoo - couple ... -
What sort of speccy releases are these?I recently uploaded some snaps of the tapes that were available legally in India to this site: [url]http://www.flickr.com/photos/arjunnair/[/url] I'…
... if these tapes were some sort of special budget Sinclair re ... -
Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... get my head around this algorithm. I don't know why ... am having problems coding this algorithm despite the existence of pseudo ... line
;Bresenham line drawing algorithm poorly implemented in the following ... -
Bresenhams circle algorithmI post here my final circle code to replace, if you want, the one in the ROM. It only uses integer math and runs very fast and is very compact. It is…
... />
;Bresenhams circle algorithm calculates the locations of the ... -
Post your best SCRs - Image to ZX Spec 1.0.1 and beyondI've been playing around with Image to ZX Spec's encoding algorithms and I've achieved a "half colour" floyd steinberg mode, that it, the image is pa…
... toying with writing a genetic algorithm that works on a known ... difficult to determine without some sort of training meaning I'd ... -
Any curve algorithm experts here?I'm wondering if any of you can help the helpless here. I'm just working on the Xmas Special intro animation, and I have a set of 3D points which des…
... anyone know of a good algorithm that produces a "nice-looking ... -
problem with Unix sortI've been on with this for over an hour, I've read the manual section on restricted sort keys a dozen times, and I still can't get this to do what I …
... the manual section on restricted sort keys a dozen times, ... "Absolute Coin-Op Power"
sort -t~ +0.47 -1 ... consider to be the correct sort syntax, but no matter ... only get it to sort on the first selected ... I've often used sort on multiple fields in delimited ... -
IDE emulation and delaysA few months ago I was told that IDE emulation, while perfectly usable, isn't accurate enough to compare it to IDE access on real hardware. On some e…
... , so I can catch this sort of thing in future... [URL ... be different implementations for the algorithm that converts a logical sector ... -
Sprite MaskingI was looking at the sprites in some games, and noticed they have sprite followed by mask. Usually a row at a time (so the mask is sort of interleave…
... time (so the mask is sort of interleaved).
Tommygun ... trying to work out the algorithm where this is useful...
DRAW x,y,a Algorithm - how does the ROM do it?Hi all, Getting on with SpecOS, and one of the things I would love to do is to preserve the original ROM's behaviour when drawing Arcs. This is don…
... of the explanation of the algorithm...
So if anyone ... !) implementation of the Arc drawing algorithm implemented by the ROM. Just ...Chase HQ Pseudo 3d road algorithm ?Hello, I'm new to that forum and to the spectrum. I'm developping games for Colecovision (may be you hear about : Ghost'n Zombie and Smurf challe…
... to figure out the exact algorithm used in Chase HQ speccy ...Loading screen "reveals" - did only US Gold do this sort of thing?You know the sort of thing, how sometimes loading screens would appear a bit at a time in a non-standard way. Here's one I grabbed from 720 Degrees: …
You know the sort of thing, how sometimes loading ... US Gold labels did this sort of thing - do you know ...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…
... of Tremaux's maze solving algorithm which solves my current test ... solutions, or suggestions for another algorithm which can do that.
space optimisation algorithm neededScenario: * An adventure game consists of a series of locations, each of which may or may not have some text and/or graphics associated with it. * A…
... on all routes.
D* Sort the locations by their total ...Math Quiz - MultiplicationThe topic is fast multiplication routines, from 8x8 to 32x32 and all points in between. These functions sit underneath floating point libraries, gen…
... : af, de, hl
; sort the multiplicands
ld ... code at the top to sort higher and lower multiplicands costs ...shadow regs musingIn the process of optimising some assembler, it occurred to me how great it would have been if the Z80's shadow reg opcodes had been a bit more fully…
... to leverage into a general algorithm methinks due to having to ... on the die, as a sort-of "pointer to register bank ...Is there an utility which can sort apart 128 and 48 Snapshots?Someone knows about Utilities (GUI or commandline, Windows) or another way to sort apart 128k and 48k Snaps?
Someone knows about Utilities (GUI or commandline, Windows) or another way to sort apart 128k and 48k Snaps?Chaos combat algorithm?I've searched, but nowhere can I find the algorithm that Chaos uses for combat, i.e. to determine whether a creature is killed. Does anyone know whe…
... nowhere can I find the algorithm that Chaos uses for combat ...1982 Atari game, 'Entombed' - with uncrackable maze algorithmInteresting article: [url="http://www.bbc.com/future/story/20190919-the-maze-puzzle-hidden-within-an-early-video-game"]The mysterious origins of a…
... computer bits. The game’s algorithm decides this automatically by analysing ...Pseudocode for CIRCLE algorithm?Can anyone provide me with the pseudocode for the Spectrum's CIRCLE algorithm? My machine code knowledge isn't up to reading the ROM routine. I'm try…
... for the Spectrum's CIRCLE algorithm? My machine code knowledge isn ... 'm trying to recreate the algorithm in another language and have ... using Bresenham's Midpoint Circle algorithm (copied from the web) which ...Matchpoint ball algorithmAnyone has any idea how Psions Matchpoint ball algorithm works? Are they calculating the balls' parabola (floating point for just the ball doesn't se…
Anyone has any idea how Psions Matchpoint ball algorithm works? Are they calculating the balls' parabola (floating point for just the ball doesn't seem that calculation intensive) or do they use a known/common trick?Sort 2 byte words (x, y) on ypos, also question about swap (DE), (HL)Well that was a lot of debugging ;) But if you want a routine which takes an array of 16 byte words x, y and then sort them on y (ignoring x), I'm…
... words x, y and then sort them on y (ignoring x ... .
Uses a heap sort since that doesn't use ... 's not fast enough to sort each frame (since once an ... /> // Main function to do heap sort
void heapSort(int arr ...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 …
... a sort of scientific education. because such problems depend on an algorithm ...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 …
... a sort of scientific education. because such problems depend on an algorithm ... /> I wrote a bit wise algorithm and coded it.
let ...Emulators without attribute clash?I know a spectrum wouldn't be the same without the attribute clash, but I was wondering do any of the emulators have a 'turn off the clash' feature? …
... specific games to do this sort of thing: check out Spec256 ... written some documentation about their algorithm :(
The other option ...
