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New version emulator ZEsarUX-2.0Hi I have uploaded a new version of my ZX80/81/Spectrum/Z88 emulator on [url]http://sourceforge.net/projects/zesarux/[/url] Changes are: Added Ca…
... +2A machines and memory paging enabled
Fixed timing with CALL opcodes ... -
[NEW] Retro Virtual Machine v1.0.0 for OSX released!!!!Here it is! Retro Virtual Machine v1.0.0 RELEASED!!!! Many thanks first to Patrik Rak for the PZX format and for their Z80 tests without which RVM…
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Many thanks first to Patrik Rak for the PZX format ... /> Tape recording for any block timing.
Disk emulation
Interface 1 ShadowROM pagingI read the Interface Shadow ROM Disassembly book. I wondered how that rom calls the interface's rom paging mechanism. It doesn't! I learned there is …
... calls the interface's rom paging mechanism. It doesn't! I ... man! It's so weird paging mechanism that it is almost ...Help With AY Music Program in BASICHi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker…
Hi, last year I started writing a BASIC program for making and recording AY Music. I thought it would be easier than learning how to use Soundtracker but, in the end - I just learned how to use Soundtracker anyway (Thanks to ZXF for those tutorials!).
Random Numbers, USR Return Values & Timing BASICI've been trying out Jon Ritman's random number routine, published in Your Sinclair Aug'87. Apart from a timing comparison I also did a frequency ana…
... Aug'87. Apart from a timing comparison I also did a ... />
Here's the BASIC timing routine which I use. The ... in line 9994. The first timing should be done with 9994 ... get the loop overhead. The timing for that is then deducted ...How would I turn memory paging on/off in Assembler?Sorry for the noob question. It's perfectly ok to do OUT 32765,48 in BASIC to turn memory paging off. But how do you do it in assembly language? I kn…
... in BASIC to turn memory paging off. But how do you ...ZEsarUX Beta 8.1Hi! I have uploaded a new ZEsarUX 8.1 BETA version. You can download compiled versions for Windows, Mac, and the source code from: https://gith…
... resolution
Improved accurate Z80 timing: IM mode 0 is 1 ... video ram 5/7 when paging was disabled by bit DI7FFD ...ZEsarUX 8.1 stableHi! I've uploaded a new ZEsarUX 8.1 stable version. Go to the github released webpage to download it: https://github.com/chernandezba/zesaru…
... resolution
Improved accurate Z80 timing: IM mode 0 is 1 ... video ram 5/7 when paging was disabled by bit DI7FFD ... mode
-fixed error when paging rom in ram, on case ...5C Horizontal timing vs 6C horizontal timing.Hi all, Just considering the timing difference in the video signal between the 5C and the 6C where the 6C ULA seems to have 50% longer horizontal …
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Just considering the timing difference in the video signal ...Paging for 64Kb of Video Ram??? What is the best way to page this?Hi all, I'm just putting together a concept card for a "Loki" style of video card, which supports shadow ( so it fits a normal Speccy ) and also t…
... , how would you handle the paging? 8K chunks? 16K chunks? Multiple ... , there needs to be a paging mechanism, and an objective?
paging the large screen into the ...New (latest) Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike DaillyNew latest Version of #CSpect: SpecNext Emulator for Windows, Linux and OSX by Mike Dailly V2.15.2 As seen on Facebook yesterday: [quote]Mike D…
... to $BB for DivMMC direct paging control
Current ROM and ... estimates for the right HBlank timing are "missed" and the line ...Most popular new features? I know some people like a spectrum to be emulated as authentically as possible, while others like myself like features which improve the gfx, sound,…
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[B]Portability.[/B]
Timing-independent recording logic for [B ... , you have to emulate the paging in of the TR-DOS ... 'll have to emulate the paging of 128K RAM. However, you ...How can I tell if 128k in codeIs there an easy way in code to check if the Spectrum has 128k, rather than 48k so I can display a message "Must have 128k" etc
... 's an issue with timing, use a timing test. For this, set ... , as aowen suggests, use the paging. Page in a RAM page ... will tell you if the paging worked or not. One thing ...Good 128k games?As I only got my +2 in the twilight years of the spectrum and then discovered cider and Doctor and the Crippens (punk band), I never really had many …
... "reveals" the loading screen by paging between RAMS. Although it (obviously ... avoid colour clashing through careful timing.
It is well ...PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…
Good stuff Patrik. Even if this doesn't ... that by recognising the standard timing info, and applications that don ...PZX file format draft[QUOTE=Andrew Barker;186084]To this date, there is no rival format for TZX, despite people saying they can do better. Well the challenge is on, prov…
... for getting the ball rolling Patrik. I guess the P in ... could stand for many things, Patrik, Phil, Paul.... though the final ... that by recognising the standard timing info, and applications that don ... all satisfied with.
PatrikContention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
Hi Patrik,
If you analyse ... documentation, but if the overall timing of an emulated instruction is ... -states in every 8. The timing of the IO contention however ... .
The memory contention timing is as it is to ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... well.
[QUOTE]The timing of the IO contention however ... start. Any volunteers?
Patrik
P.S. Sorry ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... 'm saying about the actual timing of the contention and byte ... different things
[QUOTE=Patrik Rak;213352]Could this be ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
[QUOTE=Patrik Rak;214171]Well, if I ... wiki documents the floating bus timing and how contention affects ... Now, if CSS FAQ contention timing is also correct and contention ... emulators inadvertently reproducing the hardware timing, even though they are unaware ...Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
[QUOTE=Patrik Rak;214336]I have now ... theoretically - I wonder if the timing isn't too sensitive.
Contention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
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What else? Disabling of paging doesn't disable the contention ... was interested in.
PatrikContention and floating bus timingHello, I was recently playing a bit with memory contention and floating bus stuff in ZXDS and there is one thing which puzzles me a bit. It is the d…
... the ULA must get the timing right, however the interrupt apparently ... sensing as well.
PatrikPentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
[QUOTE=Patrik Rak;228409]I wanted to ... I added support for Pentagon timing instead, so I can finally ... the floating bus behavior and timing. An explanation how the ULA ...Pentagon floating bus timingI wanted to take a little break from working on the ZXDS UI yesterday, so I added support for Pentagon timing instead, so I can finally enjoy the lik…
... .
Anyway, getting the timing and pattern of the returned ... , so we can get the timing of screen sampling right, in ... not match exactly...
PatrikNew Spectrum game - Isotopia by OctocomOctocom, the guys who made BASIC programmed games such as Pandemia or Insert Coins, released yesterday their very first compiled BASIC game: Isotopia…
... difference are the memory-paging & contention timing differences, but I'm ...New Spectrum game - Isotopia by OctocomOctocom, the guys who made BASIC programmed games such as Pandemia or Insert Coins, released yesterday their very first compiled BASIC game: Isotopia…
... difference are the memory-paging & contention timing differences, but I'm ...New protection systemsAs a follow-up to [URL="http://www.worldofspectrum.org/forums/showthread.php?t=14311&page=2"]this[/URL] thread regarding relatively new protection sy…
... with variable speed and bank paging support built in. I have ... .T. disassembler/monitor.
PatrikBeeper octave range...A dumb question, I know, but I've found two conflicting sources of information on the octave range of the Sinclair beeper. I suppose I'm being a lit…
[QUOTE=Patrik Rak;259985]A4 is 440 ... convert it directly to the timing constants for your OUTing loop ...
