... copy back to front screen with no tearing/flicker ... you were copying the buffer is in the display ... were actually updating the screen in a chaotic fashion, ... drawn on screen. If you wait out this time before ... the screen and you will have yet more time to ...

... already been mentioned -- time your sprite drawing so ... everything into a memory buffer as you see fit ... and then copy the buffer to the display in ... time and slows things down. The 128k Spec has the double buffer ... areas on screen, hopefully minimizing flicker.

... 't waste your nice loading screen) you can use this poke ... can read them in a SCREEN$. [Dr. BEEP]
* Alternatively if ... UDG is placed on the screen then use a different color ... be sent to the TV screen.
Bit 5: Any newly ...

... data from linear backbuffer to screen... aprox 14.59T/B
buffer



;FIRST TIME START HERE ... h ;4 HL' down in screen
; effect on Z flag ... ;37 145 move pointer to screen down

ld a ...

... place it in middle of screen initially
sp_MoveSprAbs(sp_phantomas, ... (game_on) {

// update screen -- everything drawn at once
time to understand how this ... buffer before copying the final result to the screen.< ...

... enough info into a small buffer to set registers in the ... , what's already printed on screen also changes.
[/quote]< ... time the tile graphics are referenced is inside sp_UpdateNow when the screen ... store an entire Spectrum-size screen in memory (6912 bytes) ...

... ) to allow byte at a time decompression. [...][/quote]

Wow ...

... of altering the order the screen is drawn. I've read ... ultimate used to update the screen bottom to top to somewhat ... everything drawn in a back buffer and are copying or if ... one pixel row at a time.

[quote]
As ...

... drawing the image on-screen at the same time that the scanline ... timings of copying the buffer to the screen using the same border ...

... drawing them to a back buffer every 1/25th second.
screen a line at a time (192 lines of ... centre is copied to the screen hence allowing the smooth clipping ...

... of code for the 3 screen areas almost instantaneously, though it ... the addresses of the video buffer to the various block locations ... it takes quite a long time for BASIC to to its ...

... the main screen. But this copy takes a long time, more than ... a frame for a full size spectrum screen ... byte attribute buffer, which is then copied to the screen when the ... copy of second buffer
- Only parts of screen that need drawing ...

... need to be redrawn. Each time you print a character to ... important to remember that every time you print to the background ... finally the finished buffer is copied to the screen.

* ... pixel and attribute buffer are copied to the screen.

...

... to "sp1_UpdateNow()" draws the entire screen.

"sp1_TileEntry()" associates ... // for occluding sprites, clear pixel buffer before draw
#define SP1_TYPE_2BYTE ... an absolute position but this time separates character coordinates and pixel ...

... loop

sp1_UpdateNow(); // draw screen now

for (i ... already in the pixel buffer. The pixel buffer's initial contents are ... hook function we specified each time with two parameters: the ...

... 10 masked sprites, but this time done using pre-shifted graphics ... may be kept for another time. The idea: the complete ... pixel buffer. Arrange for two same-size rectangular areas on screen; the ... mind this is the *draw* time only -- there is also significant ...

... byte- and word-circular buffer. To use, you must ... contains functions for computing screen and attribute addresses as ... or someone else has time to look at it. ... single character at a time decompression on the fly ... clash-free colours on screen. For the ti-calcs ...

... using the second screen instead of a memory buffer include, as MetalBrain ... , the amount of time it takes to copy the buffer. If you ... ... using the second screen essentially gives you more time to do other ...

... , using a memory buffer (ie, not using the extra screen):
1 ... some simple screen selection code). Copying a buffer to the screen takes a ... considerable amount of time.

... can be used to measure time in the game, either ... hours, minutes and seconds, or time to keep the game flowing ... full size screen 32x24
; d4ff - d4ff SP1.LIB attribute buffer
buffer
; d4ee - d4f6 SP1.LIB ...

... the screen. The message must be stored in the printer buffer (23296 ... :) I have spent too much time on this already... ;-)

... drawn into the buffer simply dump that buffer onto the screen.

time) that can make a significant ... time difference:
It is natural ... problems when transferring the buffer to the screen in that the ...

... Sinclair ads for the first time.

I ... resurface for a brief time in early VLSI apps ... software sprite on the screen when a refresh takes ... it unless you time your updates to the screen refresh.
... your display in a second buffer and copy it over? ...

... was actually common by this time on other systems.
buffer and not the ... hardware with a small buffer. Polled or interrupt modes ... absolutely hate the full screen text editor and menu ... of the mags) and, time permitting, a better full ...

... change the pallette while the screen updates. That way you can ... by hardware with a small buffer. Polled or interrupt modes.
time permitting, a better full text ... editor rather than line or screen editors.
Sytax high lighting ...

... . The one and only double buffer technique you can use with ... will take a frame of time. Double buffering works well when ... when you redraw areas of screen from scratch.

... will be enhancements - a 640x480x8 screen with the adlib or soundblaster ... to any position on the screen (as there will be no ... RAM, with the VGA frame buffer at a sensible location, then ... course has finished and my time is my own again.

... the pixelation on a TV screen. Thats what you see with ... to be done in real time and it is. The decoders ... cable has a couple second buffer on the transponders.

screen filter .... looks nasty. Watching a ...

... the block in the current screen page (specified by CUSCRNP); the ... 8k sprite in that buffer at a time. So my take is ... they fitted ), blit them onto screen using that rom routine, then ... moving sprites straight onto the screen pointer using my existing software ...