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Console wars - does the least powerful machine usually win?In the console and handheld wars, does the least powerful machine usually win? I mean, for example, in the [I]XBox vs. Playstation 2 vs. Gamecube[/I]…
... I?), and that many other attributes contribute to a machine's ... -
Q on overflow on subtraction of 2 numbers.I came across this bit of code (paraphrased for clarity) that set the overflow flag on subtracting two numbers: result = A - B; overflow = (((A ^ B)…
... ; (A ^ result) & 0x80) != 0); //^ = xor operator
I understand ... the xor operation but I can't ... -
Unoriginal Unimaginative UnplayableOK, never mind all those great games, what were the worst? Keep it to games you (or someone you know) actually paid money for back in the days when 8…
... are drawn up with an XOR, so that two on top ... -
.trd and image-hd browsers for LinuxHi! since i don't know where tho post this tread, i'm posting here (i'm expecting admins moving this thread for more apropriated places, if needed) R…
... .tar to .trd (using file attributes as metafiles, or whatever), or ... -
Graphics mode:64x48x8 colors possible on Spectrum?That multicolor River Raid demo inspired me to make this question: If we filled all the screen with chessboard pattern [code] 00001111 00001111 00…
... ). Now if we changed the attributes every 4 lines while the ... -
Please help me name that football manager gamei remember it was from around 1987 or 1988 It always unfolded as 4-3-3 tactics and Aston Villa are in the second division, you could not move a play…
... could never see a players attributes on screen, you had to ... -
Midnight/MU (multi-player Lords of Midnight) - updateMidnight/MU has been mentioned on this forum before, but since we've had a fresh update recently and with Lords of Midnight continuing to be rated as…
... levels there are even more attributes and characters can do a ... -
New game idea, "sneak-em-up".A while ago, I was going to try my hand at a game on the speccy, but nothing ever came of it. Basically, I had an idea to do a "Thief" style game. N…
... a combination of dithering and attributes with fully lit areas being ... -
Tips on optimizing some newbie assembly routinesI'm starting to learn some assembly language. The best way to learn is to actually code something you are going to use, so I'm creating a very simple…
... byte for character attribute)
; Attributes not used for the moment ... -
Tutorial - learn machine code in 30mins[B][I]Message from the moderators[/I] - bigjon has requested that readers' attention be drawn to a better version of this tutorial, one which is easi…
... this takes 2 bytes whereas 'xor a' takes only one. ... Insert line 6, 'xor a'
xor compares the chosen register ... 32 ;new carposn
xor a ;set carry flag to ... ;save road posn
xor a ;print new road
xor a ;set carry flag to ... -
Diagnosing Spectrum 48k (faulty RAM chip?)I have a Spectrum 48k (I believe it may be an upgraded 16k model) that doesn't work, and never has ever since the owner gave it to me. When you turn …
... which RAM chip the display attributes is stored in, so I ... -
how convert PNG to TAP (SCR...)Can you tell me how can I convert PNG (or BMP GIF) image [B]without any pixel/attributes changing[/B] to TAP (SCR)? The problem is that I have a pict…
... ) image [B]without any pixel/attributes changing[/B] to TAP (SCR ... be 1:1 but the attributes are wrong in the final ... program rejects any non-bright attributes and it does not change ... -
Little Sprite DemoI've managed to make a little headway with my fooling around with sprites, so I thought I'd stick a snapshot demo thing somewhere for anyone who is i…
... to make sure that the attributes associated with the sprite were ... -
Game Boy Advance EmulationI've finally got myself a GBA flash cartridge and programmer. I've put ZXAdvance on it and I like the setup. Mildly disappointed that it doesn't ha…
... point with just plain Speccy attributes so I can play it ... -
Please test my Manic Miner remake!Thanks to everyone who downloaded my sneak preview of Manic Miner Turbo. Thanks especially to na_th_an who is the only person so far to give feedback…
... you like to see corrupted attributes on the bottom of the ... -
Real Spectrum screen flicker with SCREEN$I've written a basic loader to simply do a 'load "" screen$' based video from a divide+ however I'm finding the Spectrum can't render a screens and a…
... 't render a screens and attributes quick enough to prevent flickering ... the previously loaded frame's attributes, i.e. the flicker is ... using the old frame's attributes being updated to the new ... frame's attributes.
On an emulator ... -
Hi Res Print Routine neededHas anyone seen code for a print routine with pixel accuracy? That is print(y,x,CHAR) that allows 0 < y < 192 and 0 < x < 255 - that takes a charact…
... on the screen? Preferably with attributes.
I'm sure ... -
Colour BoxesWell, working title. I don't have a name yet. Imagine a field with ladders to platforms left and right from a huge block of attributes. On every pl…
... from a huge block of attributes. On every platform is a ... -
Obfuscated code ideaThe instructions [b]SUB A[/b] and [b]XOR A[/b] both have the effect of setting the accumulator to zero. The only difference between them is that [b]…
... ]SUB A[/b] and [b]XOR A[/b] both have the ... the N flag, while [b]XOR A[/b] resets it.
XOR A
PUSH AF
A tidy loader for minigamesThe minigame competition doesn't permit the use of separate loaders like [code]10 LOAD "": RAND USR 32768[/code] The loader must be included in the b…
The minigame competition doesn't permit the use of separate loaders like
[code]10 LOAD "": RAND USR 32768[/code]
The loader must be included in the byte count.
In an attempt to save as many bytes as possible, people have written ...Loading screen recreation in HTML 5I have just developed a LOAD "" SCREEN$ simulation using the new canvas object in HTML. It is imitating the image bytes loading, as well as the attr…
... loading, as well as the attributes pass, including the border animation ...The death of the SpectrumI was reflecting the other day about life and the significance of those interests that we develop during childhood. For many, its football or physic…
... often blurring over the 8x8 attributes.
Well - I have ...Assembler Shortcuts Reference?Can someone please refer me to a page of assembler shortcuts; ie. concise ways of doing things in a few bytes which might not be immediately obvious?…
... ? Two very simple examples are XOR A to reset the A ...Modern and future computer/console gamingI'm downloading and I'm bored, so I thought I'd post about something that has been bothering me for a while (and I'll make it a long post, as I know …
... games in style and game attributes.
And multiplayer modes ...Ivan Horn and Match Day IIIvan Horn has done a loading screen for Match Day II. I've found this completely accidentally, trying to find out if Bernie Drummond was the author. …
... 's signature is hidden with attributes.
[url]http://zx.maros ...
