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128k Shadow Screen?When emulating the shadow screen in bank 7 should that bank be switched into address C000? If so, what happens if bank 7 is switched out without canc…
When emulating the shadow screen in bank 7 should that bank be switched into address C000? If so, what happens if bank 7 is switched out without cancelling the shadow? -
Speccy 128 Shadow screen.How much is the shadow screen used in 128k commercial software? I ask because I am looking at putting 128k of memory in the 48k setup I have been bu…
How much is the shadow screen used in 128k commercial software?< ... -
128K shadow screen?Hi How does the shadow screen feature work , and how can it be used?
Hi
How does the shadow screen feature work , and how can it be used? -
Basic Screen Shadow QuestionHello, I've been porting a game to the Spectrum from another platform. So far so good and I have per pixel screen scrolling working really nicely …
... using the 128K's shadow screen area and I can ... writing to and displaying the shadow screen
ld b, 7 ... br /> ld c, 8 ; Screen Shadow
call change_bank
... Select normal (0) or shadow (1) screen to be displayed.
... -
Good Graphics CardsI'm i n the market for a new graphics card. I have about $200 (£240) to spend topps. Any recommendations or should I wait until after Christmas and g…
... least that on screen UI is drawn into a 3D scene as ... to 3, etc), Duke Nukem 3D, Shadow Warrior 3D, Alien vs. Predator, Descent ... -
Not exactly an idea for a new game...... or even something new but more of an idea for existing games. However, I don't know if this has been tried before (or if it is possible to pul…
... a view for a 3D corridor block-maze that ... draw both 3D colour images on the screen at the ...
The Master System 3D works by synchronising two full ... could) display the 128K shadow screen whilst the normal Spectrum ... accepted format is for 3D TV - if you ... -
Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
... of +3DOS interfere with the "shadow" screen area at the start of ... -
New Spectrum emulator for DS[url]http://zxds.raxoft.cz/[/url] [quote]Features already implemented: * Solid Z80 core - possible bugs aside, the Z80 emulation is as complete…
... and RAM bank paging and shadow screen support.
* ... br /> * Reasonable screen emulation - the screen display code does ... It just samples the screen once per frame, though ... />
* Better screen emulation - having the emulator with ... -
alternate BASIC ROMI've come up with a few patches to the standard ROM to make it use the 128 shadow screen by default. The ROM is reorganised as follows: RAMTOP is se…
... make it use the 128 shadow screen by default. The ROM is ...
the shadow screen is selected by default
the shadow screen is paged ... now write to the upper screen area, including PLOT
screen when it was being written ... -
Where's the border line between a Spectrum and something else?I mean: there are purists out there that consider that anything that is not a true Sinclair Spectrum, with a true Z80 and a true ULA, and at most, 48…
... graphic routines that use the shadow screen present in 128K Spectrum's ... -
Midi Out from machine codeI need to send midi-signals by machine code, while Basic is too slow for my current project. I already read I can use hookcode #11E, but I have some …
... : Select normal (0) or shadow (1) screen to be displayed. The normal ... in bank 5, whilst the shadow screen is in bank 7. Note ... -
enJine: a fast tilemap enginetile engine based on excellent work by Joffa Smifff. here you can download first tech demo. [url=http://ketmar.no-ip.org/tmp/enJine.tap]Get It Now![…
... written with 128K machines and shadow screen using in mind (so programmer ... -
64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... you have to fill the screen with CHR$ 0x85 then change ... - just for 128K using the shadow screen it seems, but seems doable ... -
Enable 128kB paging in emulatorFrom Zx Spectrum documentation ([url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url]) [CODE][SIZE="1"]When memory is being pag…
... : Select normal (0) or shadow (1) screen to be displayed. The normal ... in bank 5, whilst the shadow screen is in bank 7. Note ... -
****ing Awesome Spectrum Engine (FASE)This is a new engine (sprites, tiles, map) for all ZX Spectrum machines. The engine set ups a runtime enviroment that leave between 24K and 30K byt…
... all the stuff in the screen every frame. With this engine ... machine (floating bus in 48K, shadow screen in 128K) so the comunication ... /> [CODE]
5b00 number of screen to paint
5b01-5b96 ... tiles codes of actual screen
5bfe-5bff set to ... -
RAM7 in 128K modelsWe are developing a game with lots of contents and we have already filled up RAM1, RAM3, RAM4 and RAM6. I was wondering if there's any problem in us…
... . I know it has the shadow screen and that it's used ... -
New test for finding missing +2A/+3 ULA timing detailsHello, having added the +2A/+3 emulation recently, I want to make sure I got the ULA timing 100% right. We know when the contention pattern starts, …
... the ULA actually fetches the screen bytes. Obviously the floating bus ... this out by paging the shadow screen in and out.
Totally random idea for the hardware nuts to exploreWhen it comes to multi-player games, how hard would it be to generate a second display from a single Speccy, instead of trying to link up machines, s…
... to simply produce a split-screen display, split the video ... and have it display its shadow screen whilst the new board ... a copy of its normal screen, or on a 48K ... of memory to the external screen RAM.
... off a copy of screen data from one machine ...Bug-Eyed Blob Things[URL="http://www.speccyjam.com/games/bug-eyed-blob-things/"]Bug-Eyed Blob Things[/URL] is a great game, that won the [URL="http://www.speccyjam.com/"…
... /> update all at once on screen
[/CODE]
Although updating ... may require using the 128K shadow screen to make it look good ... know if z88dk+sp1 supports shadow screen... If not, it may be ...Double Buffering Artefacts on Real HardwareI have a project that I've played around with for a while and always tested using emulators, either ZX Spin or Spectaculator. It is a 128k game th…
... 128k game that uses the shadow screen for double buffering and when ... the wrong place on the screen.
The double buffering ... ) and if so switches the screen. I don't know if ... quickly you can switch the screen after a HALT instruction.
New Utility ZXSTLC[b]New Utility ZX Spectrum Tape (& Disk) Loader Creator[/b] I made this utility to easily create tape and +3 disk loaders for my projects and have…
... options for adding a loading screen and it compresses the data ... add in a standard loading screen (which you can
| change ...What are editor scratchpads?I've been reading and experimenting with 128 bank switching and using the shadow screen. The technical reference [url="https://worldofspectrum.or…
... bank switching and using the shadow screen.
The technical reference ...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…
... : REM Leave some space for shadow screen buffer
20 GO SUB ...compatibility between ZX computers?Hey all, I'm new here :) I was wondering about compatibility between ZX computers. Is it possible to run a game made for ZX80 on a ZX Spectrum? Or a …
... easily by using the alternate screen page and placing in the ... about that to, but a shadow screen remains at #4000-5B00
compatibility between ZX computers?Hey all, I'm new here :) I was wondering about compatibility between ZX computers. Is it possible to run a game made for ZX80 on a ZX Spectrum? Or a …
... about that to, but a shadow screen remains at #4000-5B00< ... sure what you mean by 'shadow' - I assume you mean ... RAM 7 is the alternate screen space so you can page ... RAM and have the screen as RAM 7 leaving ... RAM 2
RAM 7 - Screen
Which is what ...compatibility between ZX computers?Hey all, I'm new here :) I was wondering about compatibility between ZX computers. Is it possible to run a game made for ZX80 on a ZX Spectrum? Or a …
... that to, but a shadow screen remains at #4000-5B00< ... sure what you mean by 'shadow' - I assume you mean ... RAM 7 is the alternate screen space so you can page ... RAM 2
RAM 7 - Screen
Which is what ... , BANK 2 remains the screen, so PEEK 16384 would ...128k Screen Flipping - Sample Code PleaseI know this has been covered before, but I cannot find out code to do the following: On a 128k Spectrum tell the speccy to display from address 4915…
... want to write to the screen, while the rom is reading ... the screen from one location (say 49152 ... have finished writing to the "shadow" screen, I then want to tell ... rom to point to the shadow.
The good thing ...128k Screen Flipping - Sample Code PleaseI know this has been covered before, but I cannot find out code to do the following: On a 128k Spectrum tell the speccy to display from address 4915…
... or shadow (1) screen to ... whilst the shadow screen is ... | |
| | | | | | screen | | screen |
C000h +--------+--------+--------+--------+--------+--------+--------+--------+
| Bank 2 ...128k Screen Flipping - Sample Code PleaseI know this has been covered before, but I cannot find out code to do the following: On a 128k Spectrum tell the speccy to display from address 4915…
... to 49152 ;writting to shadow screen
set bit 3 ... to 1 ;switch to shadow screen, your sprite is now ... for interrupt when switching normal/shadow screen, the effect takes place ... then second half is of shadow screen is displayed
...ZXCF InterfaceI'm just trying to get an idea for the ZXCF interface, and to me, it looks a much cleaner design compared to divIDE (Of course, that's just my opinio…
... that the SE's screen modes can be supported ... well (Timex screen modes in the 128's shadow screen area)?[/QUOTE ... ]
Bob has no concept of "shadow ... SCRN register, emulating the "shadow" screen. This is indepentant of what ...
