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Return of Speccy screen buffer formatI recently discovered that the Spectrum screen buffer format that allows only two colours in an 8x8 pixel block has made its return in a slightly dif…
... recently discovered that the Spectrum screen buffer format that allows only two ... -
Question on copying screen bufferHi, Al my prevoius games were copying graphics directly to screen memory starting at 16384. Now I'm experimenting with screen buffer where I could d…
... . Now I'm experimenting with screen buffer where I could draw my ... I would copy it to screen memory.
You may ... just copying static image from buffer to screen after HALT.
Screen buffer Tip from Raff CeccoRaff very kindly gave me this tip: "Incidentally, I remembered a trick I used on the Z80 for extra speed: When clearing the screen buffer, it was a…
... :
When clearing the screen buffer, it was actually much quicker ... to the end of the screen memory area and push zero ... onto the stack until the screen area was filled.
off screen bufferwhen using an offscreen buffer is the memory copied to the screen in a way that makes it easier to draw sprites to the buffer? E.g. Lets say you…
... offscreen buffer is the memory copied to the screen ... of the screen where you copy your buffer to,
if the buffer was copied to the screen so that the ... /> draw background on buffer (or just clear it ... draw sprites on buffer
copy buffer to screenScreen Viewer: Speccy View 4SpeccyView (v4.0) Here is my new zx spectrum screen viewer, result of this weekend's work. Features: Loads: -Standard Screen Files (6912 byte raw …
... /> Features:
Loads:
-Standard Screen Files (6912 byte raw .scr ... games)
-Sna File (Shows screen buffer of ram image, 48k/128k ... match border colour to the screen,
-Loading and header ...
Hotkeys
Save screen to Scr, Png, Bmp, Jpg ...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 …
... sprites routine method of a screen buffer and when I finish to ... I dump all the buffer in the real screen. The problem is ... that the action screen must be little becouse if ...Introduce yourself[SIZE=3][FONT=Comic Sans MS]This is the thread to stop by & introduce yourself.[/FONT][/SIZE]
... buffer & Texture -> Complex Blender Fogger -> Screen ... object previously rendered to the screen buffer.
The ... through (surviving the Z buffer comparison of course) to the ... />
Lastly the screen processor was responsible for writing ...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…
... /> Am fiddling around with the screen buffer and have written a routine ... could have an 8 byte buffer to store the 0 and ...Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... at any pixel location on screen. I was playing with 12 ... to draw anyting on 128k screen buffer, and flip it after your ...Doubling the Spectrum's resolution?Before the advent of digital, PAL TV sets had a resolution of about 702x576 pixels. It was overscanned (i.e. the edges of the broadcast picture would…
... of the CRT screen) - subtract 10% from the screen resolution, or 20 ... twice the Spectrum's screen resolution, plus the screen border.
screen image on the odd- ... contents of (part of) the screen buffer on a 48k machine.
Push/Pop data copyingWe all know that stack pointer cheese and push/pop is faster to move data than LDIR - which in turn is slower than unrolled LDI's anyway. I rewrote …
... four character sprite to the screen takes three cycles of push ... well if throwing over a screen buffer version instead, which is a ... thought. Could also break the screen buffer into 2x1 blocks and keep ... the limit, thus using a screen 28 bytes across. I'm ...Fairlight's use of LDIRYS, comparing Fairlight and Nightshade, said: [quote]Fairlight is much more interesting even though the techniques that Bo Jangeborg uses for screen…
... that Bo Jangeborg uses for screen handling aren't up to ... LDIR instruction to move the screen buffer from memory to where you ... avoids any problems with the screen refresh that occurs every fiftieth ... /> Now I thought I understood screen flicker issues, but I don ..."Chronos": how fast should it really be?I was reading [URL="http://timfollin.pwp.blueyonder.co.uk/Archive.htm"]Tim Follin's webpage[/URL] the other day and came across a curious remark abou…
... scroller that shifts the off-screen buffer by 4 pixels during each ... hl ; take care of misaligned buffer
DUP 25
Chronos (BUGFIX)Please add the following "known errors" entry to [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000951"]Chronos[/URL]: [QUOTE]Bugfix provid…
... shifts the off-screen buffer by 4 pixels ... ld hl, 64484 ; off-screen buffer
ld de, 3 ... ld hl, 64484 ; off-screen buffer
ld b, 128 ... ; take care of misaligned buffer
REPT ...Another vertical scrolling questionwhile talking about w256 x h128 vertical scrolling, are 128k modes have any advantages over 48k models? has extra ram or swappable screen buffer any…
while talking about w256 x h128 vertical scrolling, are 128k modes have any advantages over 48k models?
has extra ram or swappable screen buffer any use on scrolling?Plea for new hardwareI'm posting this as a poll as I want to judge if I'm a solo loon going on about this, or if people really are interested in either of the following S…
... video memory into its own screen buffer and generates a SCART-compatible ... a second or even third screen. As a minimum it should ... be able to place its screen address at least on any ... />
Being able to double-buffer the display (like [I]SPECTRA ...TV Pal, odd and even framesI have been researching, but haven't found any real interesting information on this subject, so far. What I mean is, since TV PAL signal is interl…
... frames to have a complete screen on your TV. So ... If we paint the entire screen file with RED on one ... get a flashing screen, but instead a striped screen with odd ... us to require an off screen buffer, since we have more ... fact have half a buffer that is not being ...TommyGun with Debugginghttp://goo.gl/HfSXev?gdriveurl Ok, so this is a pretty big release for me and I have added a lot of stuff into the code editor. Mainly of course …
... are drawing on screen or in an off-screen buffer.
The debugger ... .
There is an off-screen buffer viewer; with which you can ... View
o Added Off Screen Buffer View
Can display multiple ...Textured Scanline Flood Fill for ZX Spectrum 48KPity that it's quite hard to contribute code to WoS in a straightforward manner. Recently, I have created a textured/hatched fill M/C routine for the…
... Leave some space for shadow screen buffer
20 GO SUB 9000 ...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…
... to familarise myself with the screen buffer and know how the 1 ...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…
... spec is at copying its screen buffer, its only just shy of ... of code for the 3 screen areas almost instantaneously, though it ... the addresses of the video buffer to the various block locations ...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…
... Am fiddling around with the screen buffer and have written a ... have an 8 byte buffer to store the 0 ... /> But this will make your screen negative.
... 1 is located at screen position 1,1 and ... step 3 (for three different screen sections, STEP 32, for ...Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…
... Alien 8 has a "linear screen buffer" that is 6144 bytes long ... [*]Only draw character cells on screen that change
[*]Scene ... drawing the entire screen in a back buffer, individual character cells ... background) is copied to screen. A big advantage is ...Alien8 style 3D Tiles - TheoryHello, Are there any articles etc explaining how to do 3d style tiles, i.e. when to redraw those in front etc. I would guess you would need to work…
... 8 has a "linear screen buffer" that is 6144 bytes long ... [*]Only draw character cells on screen that change
[*]Scene ... drawing the entire screen in a back buffer, individual character cells ... br />
The character buffer cell idea is excellent, and ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... games. They barely update the screen fast enough to fit between ... allows you to alternate what screen buffer you were updating and just ...The Only Reason Sinclair Succeeded (Provoking Controversy)Although I love my Sinclairs dearly, I think that the only reason they succeeded was because at the time most people did not know any better (factori…
... . They barely update the screen fast enough to fit between ... allows you to alternate what screen buffer you were updating and just ... playable (usually they were title screen special effects). A few games ... flicker in parts of the screen because of being caught ...Currah MicrosourceHi Anyone here got a Currah Microsource ? I have one, its one of the original eval units complete with 'draft' manual. Just interested to see how …
... the first line of the screen buffer (4000h), then perform the IN ...Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... got the idea of saving SCREEN$ in ramdisk, then load code ... already shown frame into a buffer?
We gotta find ... thought basic only draws selected screen buffer. That's why when I ... pages and print something on screen I got nothing.
Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... already shown frame into a buffer?
We gotta ... , then copy that area into screen buffer.
[/QUOTE]
... file into it, activate shadow screen, erase ram disk file, paint ... in main screen, activate main screen, save it in in ...Ways to use double buffering in basicI was meddling with woody's print stream code where you can print characters at any pixel location on screen. I was playing with 12 sprites, very ann…
... when you redraw areas of screen from scratch.[/QUOTE]
screen buffer as it was "2 ...
[ROM] [ON-SCREEN-BUFFER] [CODE] [OFF-SCREEN-BUFFER]
Obviously, your ... as your "on screen" and "off screen" buffers would be ...
