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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…
[QUOTE=Arda]does screen flip avoids tearing automatically? or ... wait for vertical screen blanking before I switch buffer?[/QUOTE]
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…
... br /> 10 REM Ramdisk double buffer
20 LET port=23675 ... /> 8010 REM COPY TO shadow screen
8020 REM ************************
... ************************
8510 REM Activate normal screen
8520 REM ************************
8530 ...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…
[QUOTE=Arda]wow it works : )
I'll use that in my next crap game.[/QUOTE]
Try to do some better than this: ;-)
[code]
10 rem ***********************
20 rem * dbuf2.bas *
30 rem *A crap and ...Help where do i startIm thinking of writing a game or two for the speccy. At the moment Im not sure what type. But Im after some general info. I know laguages like Basi…
... on the rom calls and screen map, and oh yes an ... .[/QUOTE]
The frame buffer layout is a little bit ... on the Speccy. Watch a SCREEN$ from a game load, and ... place in the Speccy's screen memory.The New SPIN releases ThreadOk, as I'm now working on SPIN again full-time, and as a very wise man once said, "Release Early, Release Often"[1]... I'm going to release new SPIN…
... 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 ...When there are no more analogue TVs...It won't be long, I suspect, before it's impossible to buy a new analogue TV. This will of course doom real Sinclair Spectrums to not being able to d…
... the pixelation on a TV screen. Thats what you see with ... cable has a couple second buffer on the transponders.
screen filter .... looks nasty. Watching a ...Timex Sinclair 2068Hi guys. This is my first post here, the first of many, I hope.. :) I have a Timex Sinclair 2068 but don?t know much about it. It was given as a gif…
... a fixed size video buffer then increasing pixel resolution ... the video buffer and sprite graphics. The different screen modes the ... separately from the display buffer whereas software sprites have ... written into the video buffer where colour interactions can ...ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
...
Each character cell on screen contains a single-byte background ... at a double buffer and draw a second screen like usual into ... that double buffer. SP1 will ... background graphics from the double buffer rather than from udg ...Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
... block in the current screen page (specified by CUSCRNP ... 8k sprite in that buffer at a time. So ... fitted ), blit them onto screen using that rom routine, ... keep in that 8k buffer the backdrop tiles, and ... sprites straight onto the screen pointer using my existing ...Help understanding some z80 asmI'm trying to work out how to represent the structure of a "sprite" in the SAM as "Grabbed" by SmallC. I can see the assembler implementation but I …
... spare buffer, then using the ROM to pop it on the screen ...Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …
... memory to write to a screen. So I really am ... page 31) is default as screen 1 on startup.
< ... trying to copy from one screen to another ... the only ... little chunks via a small buffer as it tries to keep ... someone wanted to use a screen they have to call ...Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …
... bit of memory above the screen memory ( yes, I reference count ... . To have a foremost screen, and a back buffer, which flip when ... VMPR register to change which screen is being displayed.Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …
... 's memory as a linear memory map, as when ... br /> BASIC treats it as linear for PEEK and POKE etc ... so leave that there...
SCREEN 2 = 442368 (Page 26, ... Offset 0)
SCREEN 3 = 409600 (Page 24, ... :
LOAD "screen" CODE 100000 (Let's just ...Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …
... .
( note: the screen that is paged in to ... loop]
- - Page in back buffer into active memory
- - ... the top of the back buffer
- - page in sprite ... - active screen is now back buffer, previous active screen will be back buffer
Aggravating problem with screensI've rewritten my Sam C runtime emulator code ( well almost ) to allow me to use my own routines for blitting sprites onto the screen, storing tiles …
[QUOTE=DonkeyPong]( note: the screen that is paged in to ... one time is the back buffer, which as Colin pointed out ... no longer is the back buffer, which I hope.[/QUOTE]
Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
... whereas the original game is linear, it is quite possible to ... just made a link between screen 1 and 8 (to the ... prevents you directly reentering a screen you just left, but does ... no stop you revisiting that screen again at a later date ...USB Hardrive enclosures.I have invested in a USB hardrive enclosure and a 40Gb laptop hard-drive as my USB stick was bulging at the seems. Now these devices power and run t…
... the bottom right of the screen.
As for pulling ... green icon) flushes the software buffer in the driver ensuring everything ...Cybernoid editorSo, my long tern goal is to make my own Cybernoid or Rex like game (see an ancient thread about Sprite advice)...but my skills are somewhat lacking..…
... format, but only in a screen by screen basis for now. I ... the uncompressed cybernoid screen data is stored - just a linear sequence of ... 160 bytes for each screen. I have ... byte counter through the uncompressed screen bytes.
ct is ...Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…
... display colour
23296 - ?? Printer buffer
?? - ?? System memvars
?? - 65535 ... avoid running code on the screen.
I am rambling ...Total amount of memory on a Speccy ?I wonder............ The C64 (excuse me for saying that name in here. I'll hereby name it just "it") has 64k, while only 38k, or so, is available f…
... the screen memory and you [B]CAN[/B] use the Printer Buffer ...Getting scr addresses from x and yCould someone please tell me how to calculate the 8 screen addresses corresponding to a character printed in basic at coordinates x and y? For examp…
... the whole screen (excluding attributes if you wish) to a buffer (12 ... keep the rest of the screen unaffected)ANN: SP1 for Z88DK (aka splib3, Sprite Pack v3.0)Well it's finally arrived, after a month of "a few days from now" release deadlines. SP1 is the lastest version of splib, a flicker-free software sp…
... more control over how the screen is updated. For tiles, if ... display buffer as background. The example program that uses a screen$ as ...My little first set of routines.Hi all, I just coded a little set of routines just to draw a screen on video mem and a fade out. I could have just copied the screen rendering rout…
... =karingal;181655]Here's my screen clearing routine, can't remember ... first byte of the printer buffer is set to 15.bubble trouble 16k?Hi, i download this game from [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0000729[/url] and run under emuZwin. i think its not 16k game :…
Sorry guys -- it's not a 16k game. Program size is 7k, screen is 6k, it uses a 4k back buffer, which adds up to 17k at least!Game Programming Source Code & Startup HelpHi there, I'm planning on porting an existing commercial title to the speccy. I'm in the process of disassembling the original code and commenting i…
... faq.[/QUOTE]
Avoiding screen flicker and tear. If you ... a back buffer. And keep in mind, with full screen (or close ... updates you've got partial screen renderings in one active display ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... excellent. Aside from the full-screen countdown the vector graphics were ... fast as possible. The back buffer was cleared with the stack ... , then LDIR to the main screen. Early days I suppose, and ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... excellent. Aside from the full-screen countdown the vector graphics were ... fast as possible. The back buffer was cleared with the stack ... , then LDIR to the main screen. Early days I suppose, and ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... excellent. Aside from the full-screen countdown the vector graphics were ... fast as possible. The back buffer was cleared with the stack ... , then LDIR to the main screen. Early days I suppose, and ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... excellent. Aside from the full-screen countdown the vector graphics were ... fast as possible. The back buffer was cleared with the stack ... , then LDIR to the main screen. Early days I suppose, and ...Beautifully programmed gamesJust watching the bobby bearing tzx and admiring the beautiful programming involved. Which other games would you say had asthetic programming opposed…
... , then LDIR to the main screen. Early days I suppose, and ... it 2/3rds of the screen each time.
I ... am using the attribute control buffer similar to Manic Miner (only ... could do all this without screen tearing. The music was also ...
