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VIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…
... count/address space and no interrupt handling) which all of you ... -
VIC 20 emulation on the SpectrumI'm sure most people are aware of the my attempt at bringing the full Commodore experience to Sinclair users with the "Twenty Commodes" program. It e…
... make the same update for interrupt processing, which follows the 65C02 ... -
Problem with Discovery OpusI've just got a Discovery Opus, but it seems to be faulty. When I connect the Speccy and switch it on, it displays the "C 1982 Sinclair Research", …
... ROM is paged in every interrupt (at $0048 ). This explains why ... -
ANN: SpecEmu 2.7Go get it kids! [url]http://homepage.ntlworld.com/mark.woodmass/specemu.html[/url] :p
... on real machines too, sometimes; interrupt timings can vary by one ... -
ANN: SpecEmu 2.7Go get it kids! [url]http://homepage.ntlworld.com/mark.woodmass/specemu.html[/url] :p
... on real machines too, sometimes; interrupt timings can vary by one ... -
ZX Spectrum Sound Upgrade to C64Would it be possible to interface in a seperate C64 style SID sound device to the ZX Spectrum to make existing ZX Spectrum games sound like their C64…
... scan line, set some line interrupt palette changes up with PALETTE ... -
Games that cannot be completed due to bugs - the definitive listIt would be nice if the community of WoS compiled a list of all the games that are known to be impossible to complete due to bugs. Perhaps one day, a…
Re: Firestorm
Well, I thought I'd posted a snap at the time but maybe you didn't come up with any good beard pics as a swap and I just kept it for myself ;) The date on the snap says 28thOct06 which doesn't tie in with this thread so maybe it ... -
Question about something I don't know what is called.I am interested in reading about something which I don't know what is called (duh). I am looking for (online/offline) reading material which explain…
... /> * In actual fact, since the interrupt (should) only be at the ... -
ZX Spectrum Sound Upgrade to C64Would it be possible to interface in a seperate C64 style SID sound device to the ZX Spectrum to make existing ZX Spectrum games sound like their C64…
... the OS's own sound interrupt system.
Another feature ... -
ANN: SpecEmu 2.7Go get it kids! [url]http://homepage.ntlworld.com/mark.woodmass/specemu.html[/url] :p
... /> You need to "Leave" the interrupt code. It's fantastic that ... -
ANN: SpecEmu 2.7Go get it kids! [url]http://homepage.ntlworld.com/mark.woodmass/specemu.html[/url] :p
... /> You need to "Leave" the interrupt code. It's fantastic that ... until -> Cycle event -> interrupt ?
As SpecEmu is ... -
ANN: SpecEmu 2.7Go get it kids! [url]http://homepage.ntlworld.com/mark.woodmass/specemu.html[/url] :p
... until -> Cycle event -> interrupt ?[/quote]
Now, yes ... -
ANN: SpecEmu 2.7Go get it kids! [url]http://homepage.ntlworld.com/mark.woodmass/specemu.html[/url] :p
... was deferred until the next interrupt period
- IM mode and ... -
I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…
... the $FF bytes as an interrupt vector table, in IM 2 ... a JP to the real interrupt handler. -
I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…
Yeah the IM2 interrupt trick I remember using years ago for some scrolly routine. Is this the same place in the ROM that was changed for 128k machines that killed some games? -
I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…
... the $FF bytes as an interrupt vector table, in IM 2 ... a JP to the real interrupt handler.[/quote]
Neat ... -
I just learnt that Spectrum has 1kB of unused ROMWell, man learns through all his life. I have just discovered that Spectrum has over 1 kilobyte of unused ROM memory, from address 14446 to 15615. Al…
... =polomint;305927]Yeah the IM2 interrupt trick I remember using years ... -
BEEP conundrumFor the "CSSCGC 2008 Tape Magazine" December edition, I have decided to use a BASIC sound routine I wrote last year which plays a festive tune using …
... time for the keyboard reading interrupt to trigger in between them ... -
Spectrum 'slow down' hardwareAny one else got one of these ? If so do you find it useful ? [url]http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&ssPageName=STRK:MESELX:IT&item=…
... doing some kind of hardware interrupt.[/QUOTE]
It works ... -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
You know word "Interrupt" or T-state? Even my grandma can scroll the screen in 2,5 second using a basic. The goal is to scroll the screen in 1/50 second. -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... Maker;308501]You know word "Interrupt" or T-state? Even my ... -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... corrupted if there was an interrupt.
[QUOTE]By the ... -
Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... very delicate timing, as an interrupt will push the return address ... -
Spectrum AssemblyHi All, Thanks for letting me in... lol Over the last couple of days I started playing my spectrum emu again and then I started thinking about lear…
... easily modify table after each interrupt. If you'd be below ... one interrupt, you could use stack as ... -
Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... requires that you control the interrupt. It means that you disable ... -
Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... delicate timing, as an interrupt will push the return address ... ) in beginning of the interrupt handler, change SP to ... interupts), handle interrupt, and restore SP before interrupt handler exits. ... slightly more problems. When interrupt occurs, two bytes of ... -
Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... after the vertical blank/maskable interrupt. That way, not only are ... yourself. Write a very short interrupt routine that just does a ... (I). You can do your interrupt stuff after drawing the screen ... -
Fast screen writesI wondered what the faster than LDIR methods of writing to the screen were.
... after the vertical blank/maskable interrupt. That way, not only are ... yourself. Write a very short interrupt routine that just does a ... (I). You can do your interrupt stuff after drawing the screen ...