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Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... position, a copy of each sprite. This is _wasteful_ of memory... did ... shifting table
; ix is screen area
; sp points to ... -
Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... 'd screen takes more than a frame to perform the copy. Positives ... at a different location in memory.
[quote]
Also ... can then load directly into memory with most emulators. Once in ... the emulator's memory, you can create a tap ... -
Advice about drawing sprites on spectrum I've coded sprite drawing before and know all the theory about masks from a long time ago (microhobby rules! ;), but since I did it on Amiga with ha…
... position, a copy of each sprite. This is _wasteful_ of memory... did ... pre-shifted frames in working memory that you have available. At ... shifting table
; ix is screen area
; sp points to ... -
More random questionsWay back in the mists of time I remember reading a couple of articles in an ancient copy of Sinclair User, ZX Computing or the like (can't remember w…
... of articles in an ancient copy of Sinclair User, ZX ... same routine using those memory saving tricks and compare ... one single line also saves memory "i think". I ... /> i believe takes up more memory than:
... you get when the screen is filled and there's ... -
compatibility between ZX computers?Hey all, I'm new here :) I was wondering about compatibility between ZX computers. Is it possible to run a game made for ZX80 on a ZX Spectrum? Or a …
... RAM 7 is the alternate screen space so you can page ... have the screen as RAM 7 leaving the memory map as ... RAM 2
RAM 7 - Screen
Which is what ... , BANK 2 remains the screen, so PEEK 16384 would ... I know the screen only makes a copy in 45912-65535 ... -
Who want to remake Double Dragon?Seeing as the Speccy version was crap (see my review: [url="http://www.gamestyle.net/retro.php?article=31"]http://www.gamestyle.net/retro.php?article…
... : we have a copy of a background screen in memory (at #8000), and ... copy (32*48 pyxels) into the known adress at the main screen ... -
Anyone for a hacking challenge ?I have to get the DSK version of Tomahawk to work. It uses the well-known Digital Integration "SECURITY CODE" lock just like in Bobsled, ATF, etc. Th…
... browse to where your copy of Genie is and ... .3 at memory location 40000
Memory location 40000 ... Put it back! ie. Memory location 40000 now contains 2 ... lives are stored at memory address 8E7A (36474 decimal ... for printing on the screen ie. adding 30 ( ... -
Tough paging questionOK... Take this: 1. We have a program compiled and run from within GENS under a Pentagon 128K environment. 2. The program works perfectly. 3. We sav…
... 5 and 7 = used for screen flipping (first 6912 bytes of ... page 3 sometimes seem to copy their coordinates from another sprite ... target data (viewed in the Memory panel) was corrupted with some ... page 7 eh ? But the screen display is 100% fine, shouldn ... -
New project for 256 colours Games emulator!O.K. , I suggested Jonathan Needle ( Creator of the excellent Spectaculator at [url="http://www.Spectaculator.com"]www.Spectaculator.com[/url] ) to c…
... to copy graphics bytes from a bit of memory to the screen, but ... -
New project for 256 colours Games emulator!O.K. , I suggested Jonathan Needle ( Creator of the excellent Spectaculator at [url="http://www.Spectaculator.com"]www.Spectaculator.com[/url] ) to c…
... to copy graphics bytes from a bit of memory to the screen, but ... are ORed/XORed to the screen might produce some interesting psychedelic ... to a RRRGGGBB pallette, the screen display would make some sense. -
whats your second favourite retro computerOk i'm going to assume that for most of us here the speccy is our favourite number 1 retro computer,its the best home computer in the world etc etc :…
... byte to perform the copy and occupies 1.5 ... If I were to copy a Spectrum screen (6912) the unrolled ... figure) so it could copy approximately 5714 bytes in ... this routine, not counting memory contention during the pushes.< ... and 1MHz, able to copy about 2048 bytes, I ... -
EmuZWin problem!Hello! I'm trying to load Fairlight I into EmuZWin v2.4.004. It don't load at all. I'v tryed several versions of fairlight I and II. Thees files …
... background .bNN and for entire screen while a background is active ... else in the memory map.[/quote]
Now copy/paste works. Just ... recognize the graphics in the memory!![/quote]
Don't understand ... -
EmuZWin problem!Hello! I'm trying to load Fairlight I into EmuZWin v2.4.004. It don't load at all. I'v tryed several versions of fairlight I and II. Thees files …
... background .bNN and for entire screen while a background is active ... else in the memory map.[/quote]
Now copy/paste works. Just ... recognize the graphics in the memory!![/quote]
Don't understand ... -
Spectrum emulator for XBox?Some weeks ago JMC mentioned that he was writing a Speccy emulator for the XBox (which already has emulators for other "computers" [ahem], such as th…
... nights running, so here (from memory) is what you need to ... called SNAPSHOT (or whatever) and copy in your favourite .sna and ... the top quarter of the screen). Firstly press CTRL-ALT-BACKSPACE ... liking. Once done, lock the screen mode again (CTRL, ALT, BACKSPACE ... -
EmuZWin supports 256 color gamesI am sorry starting new topic, but you see this info is important a bit: new version 2.4 of the EmuZWin is available to download, and it supports 25…
... of screen trick ( for example copy the output on screen back into memory ) or ... -
MAGIC VGA BOX and +2Hi all, I ve bought a magic vga box(seen on ebay) which supports resolutions up to 1024x768 75hz. I though it would be nice to own one for general p…
... assume it has similar video memory layout as the 48k.
copy of the video screen and directly drives ... -
Game loop design?Having some thoughts on how to design the game loop and could do with some hints and tips from folks who have done it before! It's all about how to …
... copy a buffer than to decide what to draw to the screen ... copy of the current game status it needs to draw the screen ... placed somewhere in memory.
... /> exit IM2
--back to screen drawing function
finished drawing ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... How can I copy 2/3 of the screen (4096 bytes ... EXX
LD HL,SCREEN+2048+16 ; Destination
MEMORY TO FB0AH
... ENTRY:
; HL CONTAINS SCREEN ADDRESS
; DE CONTAINS ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... , but I only copy this when rendering the ... EXX
LD HL,SCREEN+2048+16 ; Destination
MEMORY TO FB0AH
... ON ENTRY:
; HL CONTAINS SCREEN ADDRESS
; DE CONTAINS ... -
Sprites flickeringI am trying to write a Spectrum game in machine code. I am still a beginner in programming, however I did much progress recently, i believe. Now I am…
... to draw everything into a memory buffer as you see fit ... fast as possible) and then copy the buffer to the display ... . The penalty is that this copy takes time and slows things ... of half-drawn areas on screen, hopefully minimizing flicker. -
A bit late, but 10 years of PlayStaion! My thoughts.I think the acual Aniversary of the Playstion release was a couple of weeks ago, but I picked up GamesTM today and it has a big feature about it (bes…
... it was tricky. configure the memory -- what kind? EMS? XMS? Do ... I have enough base memory? Oh, no, the computer doesn ... were cheap, you could still copy and pirate games, they had ... number of polygons on the screen now, it won't look ... -
Head Over Heels - 256 ColoursAfter two weeks of painstaking work I've finally completed my 256 Colour version of the classic Head Over Heels, for use in Vladimir Khladov's excell…
... seems to just be a copy of the Atari ST version ... have to know when certain memory locations contain certain values in ... colour schemes on the same screen. Therefore you can't have ... to collect on the Crowns screen, etc. You could probably get ... -
Any programmers interested in writing for a more powerful machine?Apparently not.
... any features like sprites, fast copy or else ?
if not ... screen to minimize work with gfx data
however the memory ... symetric with such amount of memory -
SAVE the complete screen in BASICHow can I save the COMPLETE screen (with the last two lines) in BASIC? If I type SAVE "XXXX" SCREEN$, then comes the message "Start tape, ..." and th…
... possible to copy your pic to a higher point in memory and ... ]
And then SAVE "SCREEN"CODE newaddr,6912 -
NVidia Display drivers - fuk!n up my system - need help!Hello. Im having problems with video card drivers. My graphics card is NVIDIA GeForce4 MX440 64MB. I downloaded the latest (or tried the older) dri…
... I would get the blue screen, sometimes the mouse pointer would ... I tried to borrow another copy of Windows 98SE CD ROM ... ran software to test the memory. Ages spent thinking "It can ... -
Help, my Sprite Code wont workI have zipped it all up here: [url="http://www.peargames.co.uk/downloads/galagorf.zip"]http://www.peargames.co.uk/downloads/galagorf.zip[/url] If y…
... />
I use a "virtual" screen where the sprites are drawn ... the buffer to the physical screen.
It is ... fancy stack stuff, I simply copy and mask onto backbuffer, and ... confused. I must be overwriting memory somewhere, aghhhhhhhhhh !!!!!!!!!!! -
+3 disksok i got a question here. Can i put the +3 disk images that i use on the emulator back on to a proper +3 disk ? If so how would i do it and what wo…
copy "T:" to "A:" does ... 3e?). In general terms, Tt copy an unprotected game to disk ... bytes and start/length etc. Copy these numbers down on a ... unless you have a good memory) and then rewind the tape ... , type
SAVE "SCREEN" CODE 32768, 6912
ZX Advance on the DS....It's fantastic!!! I new soon or later I was bound to get a DS, even though I have Zero time to play with it, and I am glad I did!! First thing I did …
... display, as the original GBA screen it's a bit smaller ... game, you could even copy and paste the remapped controls ... ? Anyway, feel free to copy and paste it to your ... a look at the start screen and if it says< ... need to update the flash memory(firmware) or by a ...Method to read byte as binary string rather than dec?Hi all Am fiddling around with the screen buffer and have written a routine to scan the screenbuffer into upper ram and then write it back in upside…
... part on the memory you're accessing. To copy a 2048b buffer ... (1/3 of the screen) using ... the delays caused by contended memory.
But that's still ...z88dkHello. I'm an spanish user of spectrum (and naturaly of this page). I have a question. I want to start to program games with z88dk, but I need a goo…
... is complete, copy it to the main screen. But this copy takes a ... /> - The engine is now a memory pig. splib2 required less extra ... requires the same amount of memory as double buffering and on ... struct sp1_cs for sprites. The memory issue can be eased by ...
