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Project: M.u.l.e.Wokani came up with a great idea about trying an open-development approach for spectrum games, and I thought why not try with a game I have under dev…
... b]d_PrintDoubleW()[/b]. The pixel scroll routine requirement has changed (the ... double width characters for the scroll. So a little later ... on, after the new scroll routine is incorporated, I' ... In the original game, each plot of land has a coloured border ... -
MULTITECH pictures[url]http://velesoft.speccy.cz/data-gear.htm[/url]
... + 1T write = 4T for one border "slot". I must use 4T ... work too, but ULA draw border only each 4T and you ... />
Yet I test scroll text in DMA DEMO level 3 (press ... -
help sought with first foray into machine code - pixel scrolldownI have started to code my first machine code program, a simple roadrace game. I've based it around the pixel scrolldown routine in 40 Best Machine Co…
... scroll only 28 characters of the display, having 2 characters of border ... br />
Keep in mind that these hard-coded ... pixel in 1/50s or a total scroll time ... your game loop (scroll + logic) in 1/50s you might ... keeping the stretched timing in mind could make a ... -
'orange' on a spectrumalways wondered why spectrums could never seem to achieve the colour orange? wasn't one of the default colours, and don't remember seeing anything th…
... it feasible it would be in a game using dual playfields ... scroll for each display completing before the raster catches up (the border ... change to red would also be visible in the upper ... what the graphics looked like in a little test :p -
Question about something I don't know what is called.I am interested in reading about something which I don't know what is called (duh). I am looking for (online/offline) reading material which explain…
... XOR operation to cause the border colour bits to invert, causing ... bars, though they don't scroll (an artefact of the speed ... code runs). These are in fact the thinnest bars possible ... :)
-- Richard
* In actual fact, since the interrupt ... -
Which emulator do you use?Note it's not a poll about which emulator you think is best*. Simply which emulator you tend to use. You can vote for multiple emulators if you, like…
... system, just write a program in Sinclair BASIC that emulates a ... />
1 Set the border and paper to black, the ... .
2 Beep. Partially scroll the POST screen. Clear the ... -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... after each pixel string scroll. Like in demo scrolls. That ... nice. So printing in buffer and then moving ... used. I need real screen scroll.[/quote]
Nice nice ... buffer
2) scroll screen and get new ... buffer) ; this is left border, ==> new pixel comes ... -
Real 60Hz NTSC 48K ZX SpectrumNot a 3rd party mod. The joystick mod was added by the user, but the board and the computer is exactly what was sold in Chile, South America. We migh…
... , there are 264 lines in a frame on the NTSC ... one will lock up when Scroll? arrives which is expected.
in on the correct timings ... we know if the top border is shorter than the ... bottom border?[/QUOTE]
That ... -
Their Finest Hour - manualHi all ! Any chances to see instructions for this game? 'Shorten' or full, in txt or jpg, pdf,...
... the Soviet border. An immediate invasion of England in June podria ... to Canada to fight in another occasion. In summary, therefore, the ... main map, in the same way. You can do " scroll" through the ... border of the area of all the map, but can do scroll ... -
Maze Mania - How did they do it?Hi, I was looking at the game "Maze Mania" by Hewson Consultants, written in 1989. The game can be downloaded from here [URL]http://www.worldofspec…
... ) has backbuffer with terrain and scroll it by one pixel.
in the bottom border. it leaves at least ... replace it by original background), scroll background a and draw tiles ... would recommend to count frames in Mazemania and you will see ... -
Maze Mania - How did they do it?Hi, I was looking at the game "Maze Mania" by Hewson Consultants, written in 1989. The game can be downloaded from here [URL]http://www.worldofspec…
... scrolling moves in characters, and it takes about 3s to scroll the ... , or (7x4=) 28 characters, in (3x50=) 150 display frames. That ... the display.
In fact, they're probably not ... blocks. Look at the screen border graphics; 2 characters wasted on ... -
Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…
... that either you're running in IM1 (use IM2 as the ... for memory contention and, if in doubt, use trial and error ... scroll routine run in a fixed amount of time whilst the top border ... -
Brand new River Raid remake?one of my friend is trying to make a riverraid remake on flash just to have fun, I checked zx spectrum port of river raid. it is bad, really bad, jer…
... to render 256x192 multicolour image in z80? (it's ... it is exactly 256 pixels in width:
[img] ... warning, do not touch the border!:
[img]http://www. ... should cause roads to cut in half:
[img] ... we don't have to scroll any pixels, just attributes ... -
River Raid Tech DemoJust a little something to look at. Enjoy. [URL="http://www.joefish.co.uk/speccy/Joefish_River_Raid_Tech_Demo_01.tap"]Joefish_River_Raid_Tech_Demo_…
... just regular Spectrum graphics and border effects.
[QUOTE=gasman ... /> - then during the upper/lower border, poke suitable values into the ... 12 characters total or 6 in each half, which doesn't ... just need to follow the scroll down and change one at ... -
48K BASIC to ZX81 BASIC conversion possible?Looking for an automated way of converting a BASIC program done on a 48K Spectrum to one for the ZX81. It's obvious that some things cannot be done o…
... * Any commands relating to colour (BORDER, PAPER, INK), sound (BEEP, ... />
* Replace unquoted apostrophe in print statements with a new ... * Renumber things so they are in steps of 10
scroll?"), it will stop, printing ... -
Spectrum Serial Numbers Wanted!![b]This post updated Sept. 26, 2013[/b] As far as I know, the serial numbering system for the Spectrum has never been fully worked out. For the p…
... if you get a Scroll prompt in a program and you ... in and the game auto-starts with a flashing border. ... If I plug the Interface 1 in as ... well then the flashing border doesn' ... br /> The serial number is in red print and reads: 013 ... -
Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…
... br />
The tightest corners in Pacman were 24 pixels between ... border invisible.
The game screen will still need to scroll ... . A program can poll IN 0xFF to detect the appropriate ... I have about seven games in various stages of development right ... -
Mr Do! ?Not exactly a new idea (at least twenty-seven years old now :-o), but how about a port of Mr Do! to the Spectrum? There was never an official one, ev…
... />
The tightest corners in Pacman were 24 pixels between ... border invisible.
The game screen will still need to scroll ... . A program can poll IN 0xFF to detect the appropriate ... I have about seven games in various stages of development right ... -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... trying to get numbes to scroll within a character cell (bottom ... in BASIC, suspect this one needs MCODE.
[CODE]100 BORDER ... -
Cool BASIC tricks and tips!Following on from Dunny's excellent suggestion of a compendium of BASIC tips + tricks, I believe it would be better to have a topic dedicated to it. …
... trying to get numbes to scroll within a character cell (bottom ... in BASIC, suspect this one needs MCODE.
[CODE]100 BORDER ... -
Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... exactly where the sourcecode started in memory - 89EDh. The next ... a 50hz pixel smooth horizontal scroll:
[code]
... with RED border timings to show the above sourcecode in action:
scroll routine back in 1990 so please don ... -
50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... ]Is that having watched it scroll through to the pipes section ... does look a lot better in the pipes section but as ... I just think the black border one is more generic. But ... -
Keys redefine routine and key check.I have written some asm code which allows me to redefine keys (for a game etc.), and also allows me to be able to check any keypresses for the redefi…
... avoid repeated keys thing.
;Border colour changes every key selection ... in b and c
loopk2 call keyrd
rlc b ;scroll ... through all the ports
jp loopk2
keyrd in a ... /> jp exit
border defb 0
nokey in a,(254) ;wait ... -
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... Joffa's developments were in rendering scrolling scenery as ... 254,A to set the border colour. Copy some data ... loop, then change the border colour again. You'll ... took up as the border colour will change on ... do a scroll on a patch of scenery held in memory, ... -
Scrimpy screensHere's a question - how small a window can you get away with as a playing area for an arcade/action game before anyone notices? From the very earlie…
... to it with a bright border image.
... area with a detailed border draws attention to the ... axis the game scrolls in seems to be generally ... />
With a horizontal scroll, you can get away with ... each side into the border, but three or more ... -
INPUT LINE and STOP in INPUTWhat was the reason for the ROM Editor routine causing "down arrow" while in an INPUT LINE to cause the "H STOP in INPUT" error report? Why doesn't i…
... ; update TV_FLAG - signal lower screen in use
; ensuring that the ... are updated and that the border
; colour is used.
scroll wrongly.
[/code] -
Stuff the Speccy can do but we all thought it couldn'tHey all, Does anyone have any good examples of stuff the speccy can do - graphically, sonically, etc that we thought it wouldn't be able to do? Che…
I think, in order of discovery:
... or graphics in the border.
4 - Redraw or scroll the entire screen ... -
Screen routinesHello. For my games I?m using the sprites routine method of a screen buffer and when I finish to print all the sprites I dump all the buffer in the …
... an extra row for drawing in new blocks.
... with each small step you scroll upward, you can just redraw ... one tile in your new row, so ... the whole of the bottom border, the fly back and the ... frame to draw the sprites in. And if you sort ... -
Retro GamerDoes anybody know when the next issue of Retro Gamer will be out? They told me to include an article about the Spectrum30 show in the News section an…
... to do in a similar style to Nightshade and the border around ... exploring a map that would scroll from left to right (and ...
