I was using a ldir to blit my back buffer to the screen RAM, and it ... using the stack to push and pop stuff to the screen, I gave ... byte wide lines from memory to the screen.

Can anybody ... like:

ld sp, buffer
pop af
pop ...

... researching different ways to accomplish what I need to do. My question ... , is it possible to copy a back buffer of size 4096 bytes ... to the top two sections of the screen ... flicker etc? This will need to run on a 48k Spectrum ...

... to screen memory starting at 16384. Now I'm experimenting with screen buffer ... ready I would copy it to screen memory.

You ... ?

It seems to me that it shouldn't ... just copying static image from buffer to screen after HALT.

...

... top of the screen where you copy your buffer to,
it is ... />
if the buffer was copied to the screen so that the first ... buffer (or just clear it)
draw sprites on buffer
copy buffer to screen

... with the correct dimensions/colours to SCREEN$ file that can be loaded ... up with a converter program to do this.

Failing ...

... />
[quote]The BBC is to stream live coverage of a ... /> maybe we can get them to screen a knockout manic miner tourny ...

... at a time in the buffer
////////////////////////////////////////////////////////////////////
... br /> ////////////////////////////////////////
// Blit the stuff from buffer to screen
////////////////////////////////////////
.dump ...

... />
////////////////////////////////////////////////////////////////////
////////////// Blit the stuff from buffer to screen ////////////////
////////////////////////////////////////////////////////////////////
void blit(void) {

... />
////////////////////////////////////////////////////////////////////
////////////// Blit the stuff from buffer to screen ////////////////
////////////////////////////////////////////////////////////////////
void blit(void) {

... />
////////////////////////////////////////////////////////////////////
////////////// Blit the stuff from buffer to screen ////////////////
////////////////////////////////////////////////////////////////////
void blit(void) {

... from back buffer to screen I use a 256 byte buffer with screen addresses to update ... ) If buffer has been filled I blit the cells to the screen, clears the ... end of buffer flag ...

... draw on the screen;
b) switching to another task automatically ... then blit it to screen; and you can use it as temporary buffer ... why most of people trying to invent something complex with ... be made modal and save screen contents they occupied -- nothing ...

... data is copied to screen, the destination screen address is retrieved ... completed graphics are copied to screen, intermediate draw results ... copying the 8-byte buffer to screen is small, tearing is ... shift causes a much faster blit to screen to be used.

... data is copied to screen, the destination screen address is retrieved ... completed graphics are copied to screen, intermediate draw results ... copying the 8-byte buffer to screen is small, tearing is ... shift causes a much faster blit to screen to be used.

... "third" of the screen, copy the screen content to this buffer using LDIR, then ... "standalone" routine[/URL] to copy back from buffer to screen while converting it. Repeat ... count of 2538848 ticks (without contention), that is about 367 ticks ...

... memory (for instance copying from buffer to screen) during contention, the results would be ... . The best possible routine to copy from buffer to screen should probably use [B ... executed during side border (outside contention).

... memory (typically from buffer to screen) simply switching from normal to shadow screen instead.
contention pattern for [B]LDI[/B ... ] in a sequence will hit contention twice (3T and 5T respectively ...

... have missed the point. Contention doesn't depend only ... (copying from buffer to screen), clearly code and buffer should be both ... 're talking about writing to the screen.[/QUOTE]

screen address, and [B]HL[/B] referencing the corresponding pair in buffer ...

... the value within itself so to speak, what you need ... That and you're supposed to traverse the line backwards when ... direction of POP

To scroll new bits in, you ... scrolling thing in a buffer and then blit that to screen (additional slowdown - lots ...

... the value within itself so to speak, what you need ... That and you're supposed to traverse the line backwards when ... direction of POP

To scroll new bits in, you ... scrolling thing in a buffer and then blit that to screen (additional slowdown - lots ...

... /> 2b. AND + OR from temp buffer to screen.

3. precalc:
to screen.


Variants:


Drawing to screen:

1. Work directly ...

... COPY BACKGROUND TO BUFFER
MOVE AND DRAW SPRITES TO BUFFER
... SET UPDATED FLAG TO 1
BUFFER TO SCREEN

... br /> ; ; CONVERTS A SCREEN ADDRESS TO AN ATTRIBUTE ADDRESS
; ...

... screen!), but would make things easier to draw on the buffer ... to screen, in adjacent lines. For example, bytes 1, 0 in the buffer ... 11110000 and drawn four times to screen.

You ... a 8x8 sprite to the buffer, then renders the buffer to screen. As you ...

... AND + OR from temp buffer to screen.
[/quote]
... + OR from preshifted sprites to screen.
[/quote]
to a buffer before copying the buffer (one character cell) to the display file. Screen ... /> [quote]
Drawing to screen:

1 ...

... br /> /// PRINTING TEXT DIRECTLY TO SCREEN AND-OR BUFFER

static uchar ... 32); // copy buffer to screen
temp += 256; // next screen address down one ...

... , resulting in increasing the screen adres with 256.
... width printer to be able to print to the screen AND to a ... width printer only prints to screen. There is no problem ... to screen rather than doing it to a buffer and then copying the buffer to screen.

... and refreshing the entire screen space above the status ... Even silly transfer from memory buffer to screen must be done by CPU ... to unroll some routines, pre-rotate graphics, store multiple screen ... buffers and use whatever CPU tricks - in order to ...

... it for different reasons, like to scroll window in game, or ... dynamically changed. So i prefer to change it on the fly ... be printed fully on the screen, common problem for catalogue system ... string, ldi the text from buffer to screen, scroll up one string..." and ...

... be printed fully on the screen, common problem for catalogue system ... string, ldi the text from buffer to screen, scroll up one string..." and ... would only recommend to print all into buffer and LDI only ... fact start pointer into your buffer. I think for system ...

... many bytes it can copy to screen between T=14336 (end of ... , it simulates copy from back buffer to screen.


LDI routine ...