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50Hz on PC?Hi, do you know of any emulator for PC that can switch monitor refresh rate to 50Hz or closest possible and sync ZX interrupt with monitor refresh?…
... synced to 50 Hz interrupt and the interrupt is synced to 50 ... -
Interface rom - Need help to dump itHi, I have temporarily an interface that is similar to a multiface. It has an NMI button and displays a menu where states can be saved and pokes ent…
... other activity (except for an INTerrupt ACKnowledge cycle) it remains inactive ... -
Your help needed![FONT=Arial]there are [URL="http://www.worldofspectrum.org/neededscreens.html"]a number of titles[/URL] (146) that still lack an in-game scre…
... code routine inside the 50Hz interrupt handler. I can see this ... would be useful to implement interrupt driven sprite routines.
< ... demonstrating that the routine is interrupt driven.
The ... the end of the user interrupt routine has been POKE'd ... -
50Hz on PC?Hi, do you know of any emulator for PC that can switch monitor refresh rate to 50Hz or closest possible and sync ZX interrupt with monitor refresh?…
[quote=zub;223929]If you could get Fuse for Windows to sync to 50 Hz, then be my guest! :)[/quote]
What about syncing it to "any" monitor interrupt? OK, emulation will be faster. I can live with that. -
50Hz on PC?Hi, do you know of any emulator for PC that can switch monitor refresh rate to 50Hz or closest possible and sync ZX interrupt with monitor refresh?…
... syncing it to "any" monitor interrupt? OK, emulation will be faster ... -
Group Order of Internal/External Kempston Turbo InterfacesI have contact Velesoft ([url]http://velesoft.speccy.cz/kmturbo-cz.htm[/url]) about the production of internal or external kempston turbo interfaces …
... :
-floating bus stabilisation ( return interrupt vector #FF to data-bus ... -
ANN: SpecEmu 2.5Oh well, can't say I'm particularly proud of this, but I am bored with it :p So.... New features: * Currah µSpeech emulation (with various pla…
Thanks! SpecEmu it is my favorite emulator.
Could you incorporate monitor sync with ZX interrupt (some day)? -
To Winston , diag-interface.Hello to all, first, sorry for my english i'm from spain and my english is very poor. Wiston, thank you very much for your great work "diag-interface…
Hmmm. Can you video the entire test sequence (it should continue to do all 3 memory tests), and if possible a video of the screen when it does the ROM CRC/ULA interrupt test? -
ANN: SpecEmu 2.5Oh well, can't say I'm particularly proud of this, but I am bored with it :p So.... New features: * Currah µSpeech emulation (with various pla…
[quote=omega;224569]Could you incorporate monitor sync with ZX interrupt (some day)?[/quote]
Well, it's pretty much the end of the road as an end-user emulator. -
How does the Z80 communicate with hardware?How does the Spectrum (or Z80) interact with other hardware devices? I think devices can communicate with the CPU through interrupts, but how can the…
... IN and OUT instructions. An interrupt would just inform the Spectrum ... disk interface might raise an interrupt when it's ready to ... -
ULA RAS, CAS cycles, refresh and "snow effect"Hello everyone. I have a question, does anyone observed timings of RAS and CAS generated from ULA? I think there may be answer to where the "snow ef…
... A14 low - this is the interrupt handler kicking in and I ... just by chance that the interrupt handler does access the lower ... -
Who has an Issue 1 or Issue 2 Spectrum??Do you have an Issue 1 or 2 Spectrum (ie machines with 5C102E and 5C112E ULA's) ??? You're help is needed! PLEASE SEE THIS THREAD: [url]http://www.…
... /INT it showed that the interrupt happened about mid-way during ... variables getting updated once per interrupt.
Here's a ... -
How does the Z80 communicate with hardware?How does the Spectrum (or Z80) interact with other hardware devices? I think devices can communicate with the CPU through interrupts, but how can the…
... !
So when an interrupt reaches the CPU, it could ... -
Multi-tasking OS on the Spectrum?Do you think it is possible to build a multi-tasking operating system on the Spectrum? That is, most important the ability to have several task run…
... to have a own made interrupt handler, which acts as the ... ? Can you do a timed interrupt that would fire e.g ... , which loads the special made interrupt handler / scheduler? -
Multi-tasking OS on the Spectrum?Do you think it is possible to build a multi-tasking operating system on the Spectrum? That is, most important the ability to have several task run…
... 's reference to memory). The interrupt routine could do all the ... -
Multi-tasking OS on the Spectrum?Do you think it is possible to build a multi-tasking operating system on the Spectrum? That is, most important the ability to have several task run…
... ZX there is only 50Hz interrupt and all the task management ... -
The direct bus or indirect one... that is the questionThe Ethernet project continues...and I'm in a quandry. So I've managed to implement enough socket library for the W5100 that socket, bind, listen, a…
... , since the DivIDE traps the interrupt service routine and I'm ... ISR after handling the W5100 interrupt. I may just have to ... -
Benchmark timeWell, the BASIC benchmark posted in Creative Computing back in the 80s came up as a topic on the AtariAge forums. The article is available online an…
... regular code. And basic's interrupt routine consumes another 1.4 ... -
+2A, are they all this incompatible?My +2A does not seem to be faulty but the number of games that don't run on it are silly. Scooby Doo(Elite), Crazy Cars , Turbo Outrun, Vindicator(im…
... issue causing the mode 2 interrupt vector to go astray and ... -
** Vu-meter competition **Apologies if this is in the wrong section. At the moment, the official number of entries is [COLOR="Red"]0[/COLOR]. :p [B][U]Why?[/U][/B] I was tr…
... being performed via IM 2 interrupt? Might work quite well. -
How to add basic commands like "!command"Hi all, is there some where in the forums a thread dealind with the topic how to add basic commands? How are the commands for example of Basic+ are …
I believe it has to do with changing the interrupt service routine or something like that. In the Microhobby magazine, lots of stuff which added functionality to BASIC programs were used with expanded BASIC commands, and no extra HW was needed. -
How to add basic commands like "!command"Hi all, is there some where in the forums a thread dealind with the topic how to add basic commands? How are the commands for example of Basic+ are …
I can't believe that you could implement e-basic using interrupts - although an interrupt can occur at any time. Disscus! -
ZX 128 compatibility for SAM COUPEI develope new internal interface for SAM COUPE. This interface contain RTC compatible with original SAM BUS and MB02+, battery backed SRAM 512kB, 51…
... , SOUND, COLOUR PALETTE and programmable INTERRUPT will possible in ZX mode ... -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
[QUOTE=TMR;235328]That's down to it not using an attribute-based system for the bitmap mode[/QUOTE]
Yes, 2/4 colors per scanline limitation is a killer, and afaik is very hard to avoid (not even completely) using really nasty interrupt tricks. -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... one of the 6 fixed interrupt points (or code for a ... Plus, which has more flexible interrupt hardware). By contrast, the C64 ... -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... Plus, which has more flexible interrupt hardware). By contrast, the C64 ... done almost immediately after the interrupt is triggered. Changing mode at ... main difference is that an interrupt can be triggered on ... the overhead for servicing an interrupt is only a few ... -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... done by the IRQ interrupt switched to raster interrupt mode and the ... /> Basically, you tell the raster interrupt "i want a split on ... split, each resets the raster interrupt for the next in line ... splits, others re-write the interrupt pointer for each split but ... -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... done by the IRQ interrupt switched to raster interrupt mode and the ... as it only gets one interrupt per frame, and doesn't ... -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... anywhere. Something like pixel line interrupt will be very handy too ... -
another c64 vs. Speccy site...[url]http://c64vsspectrum.com/[/url] 25 years and we are still brawling.. ;)
... to shift the only Speccy interrupt onto any scanline rather than ...
