... a good way to time sprites to screen refresh? or is it ... size screen 32x24
53 ; d1ff - d1ff SP1.LIB attribute buffer
buffer
55 ; d1ed - d1f6 SP1 ...

... , as did the early loading-screen demos I posted early on ... ), you also have the printer buffer to use as scratch space ... game. In my Copious Free Time, I want to retrofit 47loader ...

... variable search routine some time ago, I haven ... br /> ; Fixed & enhanced SCREEN$() function
; Fixes ROM ... /> ; IMPORTANT NOTE
; SCREEN$ treats plain & inverse CHR ... br /> cp (hl) ;compare first bytes
pop ...

... screen at the same time?

Are you using some memory buffer ...

... sprite types on the screen at the same time?[/QUOTE]

buffer? I suppose you do, so ... engine (there's no memory buffer), so the rest of the ...

... change the next time it is drawn.

Compare the beginning ... character coordinates it occupies on screen.

IF the sprite ... is entirely on screen you can force a redraw ...

... nice result. How does it compare in terms of code+data ... 192 ; will char draw off screen?
jp nc, error_zc - 2 ... , as I don't have time tomorrow). I don't know ...

... screen every frame. This is almost 2/3 of the available time ... so in the rest time we must paint the ... doesn't give enough time still, leave a single ... fair bit more drawing time (this is the method ... is - each buffer corresponding to a screen third), and basically ...

...
Bits 0-2 - Color screen edge.
Bit 3 - Trigger ... is paged in all the time (over the 48K ROM ... ) + 256 bytes in printer buffer (23296 to 23511) for a ... sector buffer.

Beta ... of BASIC variables every time a sector is read ...

... to a buffer and then copy the finished result to screen. sp1 ... completed graphics to screen one character square at a time.

time the z80 takes between toggling ... so you can fill that time with tasks like sound generation ...

... the bitmap screen itself as the decompression buffer. If you ... use the top 2/3 screen ... sectors for the circular buffer (thus 4096 ... decompression within this circular buffer simply executing [B]RES ... of them at a time, I grouped them in ...

... ; write number to ascii buffer
.....

buffer:
defs 6 ... 10 ; vertical pixel coordinate, above screen
ld hl,0 ; ...
; rectangle defining the full screen
; sprite above is clipped ... couple of weeks, free-time permitting.

... here my blit/back buffer routine is working really ... way of destroying the back buffer image would be? My ... br /> draw to buffer
blit to screen
redraw stuff ... draw to buffer
blit to screen
wipe buffer for next ... sprite routines a 2nd time?

... for hack code and attribute buffer

-on 128 kB ... short answers but not much time now)

1. Could ... the arcade, the lives and time are yellow (not white) and ... memory again for the logo screen? I feel the game is ...

... scrolled screen probably takes up the majority of the processing time, and ... a different pattern into the buffer every few frames).

Filling the buffer with random values generates noise ...

... Mandelbrot.jpg[/IMG]

Time for one of my regular ... to just display the background screen.
An instruction has ... spectrum display to the background screen everytime the program counter reaches ... use the buffer to hold back a write to screen until a ...

... the output of the buffer so writes to screen build up in ... /> 2. bypass buffer: this instruction sends writes to screen directly to the ... the buffer being plugged but not getting released at the correct time ... but ran out of time to get any screen shots.
< ...

... just mimic the standard screen, but take its data ... , I know it can buffer two screens, but the ... at a time, and to update either screen it has ... displaying the paged-out screen and writing to the ... the real Speccy's real screen every time.

What ...

... of the width of the screen is carefully disguised ordinary ... a sound-effects buffer per line of the screen allowing for simple ... these engines use a straightforward buffer to store the attributes, making ... draw on the screen, and at the same time modify the code ...

... a huge chunk of time doing an LDIR of ... copy the secondary graphics buffer to the screen.

... this which it spends time loading for no good ... about an eighth of its time beeping (not counting the ... about six eighths of its time doing the LDIRs, so ...

... dump to the screen only the area of the buffer that contains ... same time, perhaps this way is slower than dumping all the screen ... of five sprites in the screen...

Ive use it ...

... . Though obviously if the screen isn't passing by fast ... Move or wrap-around a buffer (or buffers) of data ... re-draw the screen area from the map each time.
< ... Or you might have one buffer that you pixel-scroll in ... can re-draw the screen for any point on ...

... . Though obviously if the screen isn't passing by fast ... Move or wrap-around a buffer (or buffers) of data ... re-draw the screen area from the map each time.
< ... Or you might have one buffer that you pixel-scroll in ... can re-draw the screen for any point on ...

... to do a linear buffer as it is to ... go off screen adds directly to the execution time of ... it against any rectangle on screen :) But admittedly, that ... -linear order of the buffer spreads out the rows ... access, maybe reducing the time between refreshes for each ...

... only.

-Time and Magik Location graphics on ... screen. The extra features vary depending on whether you compare ... />
-Turrican II - Loading screen.

-E-motion - ... Has additional loading screen

-Vindicators - ...

... when I get some spare time, :)

EDIT: Or do ... thing of using a buffer for a second screen. Then just blast ... that to the main speccy screen when needed (while avoiding the ... my bad, you use a buffer, :)

... attributes. Either need to time it better, or ... bc, 6912 ; Length of screen 192x32 - with no colours< ... ; Moves pointer to screen table (visable address of ... temp2) ; Gets colour row in buffer
pop de
...

... /> }

close(screen);
close(pipe);

di

;; buffer to hl
ld iy ... to stop sending (every time you read a byte ... rs232_getb(byte *b) {
/* buffer empty */
if (rs232_ib_beg==rs232_ib_end ...

... are a number of compile time options (unroll loops, ... or to a memory buffer using a graphics context ... be a clip to screen boundary followed by render ... which draws directly to screen.

If ... I find that all the time while writing z80 code -- ...

... to create a 512 byte buffer under PROG?[/quote]
Possible ... only need to buffer one word at a time so a 34 ... byte buffer is usually sufficient ... a ramtop, if executed from screen.
its always reachable, in ...