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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…
... aware, it was a horizontal scroller using a version of the ... . The curious interlacing of the source bitmap data is designed so ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... buffer.
For a vertical scroll, move the point you ... an ADD to move the source address back to the start ... as described above for a vertical scroll. -
Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... define (in a readme file, scroller or on pergament signed with ... .
As there are some source codes available, it is possible ... save with standard loader. The source code of "Cannon Bubble" has ... -
ZX Spectrum on SunDown UK meetingHi there. :) Just a short note I put my beeper song made for two synchronized ZX Spectrums (6 channels) "Love Quest" into "Synth Music Compo" of Su…
... start. We also added a vertical scrolly at the end - thanks ... unfinished version of the end scroller and the music was only ... soon and get the end scroller scrolling nicely and add a ... -
Help! Reverse engineering a Spectrum game[deleted]
... the top of all your source files.
Please, please ... one pixel and horizontal or vertical lines
18 - A set ... and comments in the original source code describe the programming in ... -
The Programmers Development System (PDS)Hi everybody, I recall this system has been mentioned several times on WoS forums. Last time was, I think, when those sources from Maz Spork (Buggy …
... any one of four horizontal/vertical combinations saving memory.
...
; > D1.L = Source...
; > D2.L = Destination ... /> move.w #dma_source_lower,d0 ; Source...
move.b d1,d0 ... move.w #dma_length_lower,d0 ; Source...
move.b d3,d0 ... -
Assembly Programming for IDIOTSOk are there any websites guides for what opcodes do in a z80 or books... but for really really thick people like me :-) Something along the lines …
... hand, if a multiple interrupt source scheme would be needed on ... the MSX, to clear the vertical retrace interrupt condition on the ... . None of them (mouse, joystick, vertical retrace, keyboard) generate a high ... -
Calculating the address of a pixel?Hi Folks, Is there an easy/quick way of calculating the memory address of a pixel? So for example, if I wanted to "plot" pixel at screen coordinate…
... you want them and mentions vertical hardware scrolling absent on the ... people had some other, unofficial source of income). I can't ... -
Some 48k+ packages for saleSoon! Rwap is sending over a few membranes for 48k+ machines, so far, got two fully functional (and looking good!), soon as the membranes are in the…
... output, just black and white vertical bars but all the power ... into working order. Is your source likely to have any more ... -
Mr Beep / ipod gameCongrats to Mr Beep who did the music for a new ipod game... Air Supply The game looks very old skool with simple 80's style graphics, plus with th…
... the screenshots. Where do you source your graphics from for your ... here, because I have a vertical shooter in the works that ... -
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…
It will probably be a vertical scrolling shooter I work on ... , while I hone this horizontal scroller for use in a game ... 't decide on doing the vertical scrolling backgrounds with just 4x1 ... -
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: …
... the effects are boringly simple vertical reveals, but there's some ... Bobby Bearing's reveal-plus-scroller. -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
That's a nice smooth scroller Zoltar, nice one.
... ; Point to next byte of source tile data (6)
pop hl ; POP source address. 10
dec ... -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
I'm going to go through this in more detail later, there's a fair bit for me to learn there I've looked into a nice jerky 8x8 sideways scroller but nothing as nice as this smooth vertical one.
Looking forward to seeing what you come up with :) -
Tile based graphics and scrolling thingy...Here's my best attempt so far at a tile based rendering and scrolling routine. It draws in 22 8*8 graphics tiles along the top of the screen (junk i…
... down depending simply on the source and destination addresses that get ... for simplicity's sake. A vertical scrolling Xevious type game will ... -
Dead Spectrum SocietySo I'm getting back into real Sinclair computers rather than emulators. During the summer months I was lucky enough to buy a working ZX81 and was giv…
... a particular pattern, showing many vertical (red or black) stripes ... comes with full source code, and its source code is... only ... needs Visual Studio. The source code itself provides information about ... how to compile the source code succesfully.
In ... -
Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... /hwscdemo.tap[/url]
Source code here:
[url]http ... 5b00-5b1f is reserved for vertical scroll (5b38 if horizontal and ... -
Add horizontal hardware scroll to ULA+In this case we must read a bit in the ULA+ for test if supported. And the future software that uses it must have to branch: 1. If hardware scroll i…
... /hwscdemo.tap[/url]
Source code here:
[url]http ... 5b00-5b1f is reserved for vertical scroll (5b38 if horizontal and ... vertical scroll are used at time).[/ ... -
New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... looks simliar in both horizontal/vertical and diagonal
[IMG ... -
New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... looks simliar in both horizontal/vertical and diagonal
[IMG ... ' player ship for a sideways scroller like nemesis/r-type unless ... -
New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... looks simliar in both horizontal/vertical and diagonal
[IMG ... -
New Spectrum (Spaceship) Mascot?Original spark here...[url]http://www.worldofspectrum.org/forums/showthread.php?p=588993#post588993[/url] I'm trying to write this without sounding …
... that for an 8 way scroller that fits in a 16x16 ... looks simliar in both horizontal/vertical and diagonal
[IMG ... -
Nemesisanyone got an invulnerability poke that works? the one on the tip shop doesn't seem to work with the tap version
Nemesis was just purely a horizontal scroller. Salamnder is definately horizontal and vertical. -
Pixelwise scrolling sideways - how many ways to do it?Not that I need to, but I've been wondering if there's a good way to do this that I haven't considered. Scrolling [B]pixelwise [/B]vertically is "ea…
... [/URL][/I] has a nice scroller and uses a back-buffer ... and new 1-byte wide vertical strips put in as needed ... -
A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
... ago, but this time the source is included, with some comments ... pixels
uchar dy; // signed vertical speed in pixels
};
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…
... /> If it's a horizontal scroller, I wouldn't want to ... a big fan of the vertical panels. Just personal opinion, but ...3D Deathchase on the Commodore 643D Deathchase has been ported to the C64, at least according to Micro-Mart. According to this week's MM, the port is called Hell Racer, and here's a …
... colour of the scroller is actually different for each vertical band.
vertical scrolling for ages that i ...Trident PD TapeI've been going through a tape and found that its the contents of the Trident PD tape. What is the preservation status of this ? I would have to h…
... .831s
42-1B25B: Program : SCROLLER Length: 19 Normal Speed ,Pause ... .830s
70-2665F: Program : SOURCE.BAS Length: 19 Normal Speed ...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…
... covering the entire screen: strange vertical bars appeared). At first I ... it it, there is a vertical line not fully covered. It ... A register (8 bits)? The source code seems to indicate the ...DIVIDE 2k11hello, just short link - for Your info (cpld, 4 layers, rohs, cpld code for future development for clones..) [url]http://lotharek.pl/product.php?…
... be easily changed based on source code nad via jtag programmed ... one question: It is a vertical interface. So why has it ...
