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20-column multicolour: a half-baked ideaI was writing an email reply to one Mr Jowett about multicolour routines, and in that way that explaining something to someone else makes you think "…
[QUOTE=Einar Saukas;714502]The number of ... need to start drawing the attributes after a different number of ... -
30-column 8x2 multicolor (even in 48K)I don't recall any 8x2 multicolor routine for 30 columns that would work on all Spectrum models (including the Spectrum 48K), so I decided to write i…
[QUOTE=Einar Saukas;715236]Do you mean one color for each 4x2 pixel area? If so, the answer is yes.[/quote]
Yes. I was thinking that having a fixed bitmap and just updating the attributes might free up a few CPU cycles. -
Math problemI'm trying to solve/model a science problem, and I thought a simple BASIC program might help me, but I struggle to write it. Goal: Given a length of…
[QUOTE=Einar Saukas;715501][B]Bubble Sort[/ ... you get it, the actual algorithm is trivial to program.
algorithm. It's not very efficient ... -
Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... /> Might need to stretch the algorithm, ideally, to multiple squares, but ... is elsewhere - either pixels or attributes), it's probably intended to ... -
Clashbasher a new interface to reduce colour clashI've been working on this for a while now. [IMG]http://markamy.uwclub.net/cauldron.JPG[/IMG] Basicly its an add on for a 48k spectrum, which reinte…
... set all the sprite's attributes then all the display bytes ... 's probably paint pixels then attributes across a block or vice ... looking at the flip between attributes and pixels... there's a ... bit, but not hardware. Though algorithm concepts can be applied at ... -
Experimenting with turboloadersHello, My first post, having lurked here for a while. I'm a lifelong computer nerd, Spectrum fan since childhood in the eighties, and have recently…
[QUOTE=Einar Saukas;718946]Your routine will ... anywhere in the data; for attributes, there's a whole class ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
[QUOTE=Einar Saukas;722756]Except on the ... was calculated incorrectly before copying attributes![/QUOTE]
Never mind ... -
RCS (Reverse Computer Screen)[B]RCS[/B] ("Reverse Computer Screen", or simply SCR written backwards) is a small utility I'm about to release, that reorders bytes from the ZX-Spec…
[QUOTE=Einar Saukas;723025]Great work! This ... looks different since it copies attributes first:
[CODE]; HL ... -
ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
[QUOTE=Einar Saukas;687890]Every ZX-Paintbrush ... just a Timex format with attributes saved in a different order ... -
How much does Bifrost improve graphics (test 192x192 graphics)Inspired by the BIFROST library I made several experiments with 8x1 graphics at 192x192 resolution. The results are now overwhelming but under certai…
[QUOTE=DaRkHoRaCe;727406]Hi Einar, just one question. Does Bifrost ( ... CPU time to "manually" replace attributes on screen during TV raster ... -
ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
[QUOTE=Einar Saukas;727577]I just don' ... something this esoteric.
Einar, you of all people should ... only a single line of attributes reloaded "realtime" per line of ... -
ZX-Paintbrush 2.3 publishedDear readers, Today, I published version 2.3 of ZX-Paintbrush. Inspirated by kgmcneil, I decided to follow his ideas and implemented a switchable p…
[QUOTE=introspec;727580]Einar, you of all people should ... only a single line of attributes reloaded "realtime" per line of ... -
Lime Rick, like Snake but with gravity[B]Lime Rick[/B] by [url=http://www.kissmaj7.com/games/]Kissmaj7[/url] is an elaborated version of "I Left Myself Behind". It's a puzzle game with an…
[QUOTE=Einar Saukas;734335]Although these graphics ... it could be used with attributes to simulate two loading bars ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
[QUOTE=Einar Saukas;734903]I suspect interrupts ... the screen (just without the attributes).
I've changed ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... =Einar Saukas;738480]In [B]Alter Ego[/B] you never update attributes ... directly on screen without changing attributes.[/QUOTE]
Exactly, ... no attributes update during a game. I ... need only bicolor static 8x8 attributes to start! -
Small demo to show my sprite engine for ZX Spectrum 48KThis demo shows 13 sprites moving at 50fps totally flicker free: 12 enemies bouncing in edges and the main character, controllable with OPSA (note S …
... fill the corresponding 'pixelspace' and attributes with a single appropriate value ... , according to a simple sorting algorithm, e.g. by checking the ... -
Sierra AGII've been thinking recently about starting a project to port Sierra's AGI engine to the ZX Spectrum 128. I've been reading the AGI specs and to me i…
[QUOTE=Einar Saukas;745120]
Anyway I' ... of the Spectrum's colour attributes.
All food for ... -
Sierra AGII've been thinking recently about starting a project to port Sierra's AGI engine to the ZX Spectrum 128. I've been reading the AGI specs and to me i…
[QUOTE=Einar Saukas;745300]You better forget ... of tweaking due to screen attributes, I was more referring to ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
[QUOTE=Einar Saukas;745938]Anyway the alternative ... a sequence of 4 bicolor attributes (or an address or index ... be ORed with all four attributes of that UDG when it ... byte to 0 and the attributes of your UDG will not ... -
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
[QUOTE=DenisGrachev;748539]Einar, if i grow up one ... ]
Now notice that attributes for column 27 and 28 ... -
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…
... constant. In this case Metalbrain, Einar Saukas and me release this ... can use divide and conquer algorithm like [url]https://en.wikipedia ... take. I think using this algorithm may not make sense until ... -
THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…
[QUOTE=Einar Saukas;760131]
Is this ... note there are some dodgy attributes in some screens, such as ... -
New bicolour game: El Stompo.Phew! Finally finished my first game using Einar's fantastic Nirvana engine. [B]El Stompo.[/B] [IMG]http://i1142.photobucket.com/albums/n608/davey…
... the same thing to the attributes in machine code.
The latest engine is [B]Einar Saukas[/B]' [I]Nirvana[/I ... -
THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…
[QUOTE=Einar Saukas;762801]38b. [IMG]http:// ... the others with similar dark attributes under the columns) make me ... -
THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…
... 490th, thanks Einar for taking the time on the attributes explanation and ... -
THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…
[QUOTE=Einar Saukas;766034]That's a ... too obvious that the green attributes are squared, you need to ... still find the green blocky attributes too obvious. I prefer the ... -
THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…
... these. Keep having to invert attributes/pixels.[/QUOTE]
You ... the palette image provided by Einar some posts above
to ... -
THE HOBBIT loading screenHello again, thought I'd have a go at an alternative loading screen for The Hobbit. [IMG]https://dl.dropboxusercontent.com/u/61658082/THE%20HOBBIT%…
... .google.com/site/zxgraph/home/einar-saukas/hobbit128"]other screens[/URL ... mountain lines to better match attributes, unless someone has a better ...
