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A question about M1 cyclesI'm writing an interrupt routine that, after the usual register pushes, will jump to a location of my choice with a [b]JP (IY)[/b] instruction. If I…
... if you can keep the interrupt routine in a memory area ... /> The interrupt routine and IM2 table will reside in non-contended memory ... loop.[/QUOTE]
The interrupt signal is an external input ... -
WIP: Another demoIt's a couple of months already since I've released something, so I thought it's fun to show a demo of the thing I'm currently working on: [url]http…
... main loop as the ROM interrupt routine increments this byte (I ... at the end of my interrupt routine just to do the ... they haven't, do any non-essential processing (pending sound effects ... -
+3 assembler questionI was wondering if anyone could give any suggestions as to how to get this bit of code working on the +2A/+3 in 128k mode. It works on the +128k/+2 i…
... code executed when an interrupt occurs. If non-zero, a 'ticker' variable ... is decremented every second interrupt, and ... process will start again while interrupt mode 1 is still selected ... -
Transferring games into MicrodriveLast week a big pack of empty microdrive cartridges arrived, and now I'm ready to playing with my little microdrive equipped speccy. One of my aim w…
... ! The very last stream of non-repeated data never needs to ... should be made during an interrupt. Emulator authors and/or WOS ... -
Mister Beep honourThis year we had a great amount of games with music produced by [URL="http://www.worldofspectrum.org/infoseekpub.cgi?regexp=%5EMister+Beep$&loadpics=…
... worked with Dave on several non-Spectrum titles I always found ... be - memory allowance, processor usage, interrupt availability etc. - final results were ... -
Where's it all going?[Rerouted from 'Assembler Intricacies' in Development Forum] [QUOTE=Timmy;506104]I don't think we're in disagreement here. As I've said it's a niche…
... without being tedious. Developing non-trivial algorithms is much more ... on now is too non-trivial to get anywhere ... having flicker-free sprites without interrupt synchronization was never something ... then wait until the next interrupt occurs. That wait was ... -
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![…
... the display routine interrupt driven and have the non-critical code generating ... scrolls around the map, the non-visible part will be updated ... -
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![…
... to have the display routine interrupt driven[/i]
the hard ... 't start screen output when interrupt comes, 'cause it causes screen ... 'cobra', where sprites overlaps with non-empty tiles.
but ... -
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![…
... to have the display routine interrupt driven[/i]
the hard ... 't start screen output when interrupt comes, 'cause it causes screen ... 'cobra', where sprites overlaps with non-empty tiles.[/QUOTE]
A Pointless Propotional Font demoSomething I've made the last couple of days, which is probably completely pointless, but might be a bit amusing. It's also not worthy of posting thi…
... remaining time until the next interrupt, the AY is still ringing ... would be interested in seeing non-native Speccy [I]GAC[/I ...writing an emulator-newbie needs helpHi, this is my first post here. I decided to write a minimalistic emulator of ZX Spectrum-no emulation of advanced peripherals, no emulation of sound…
... me a good reason why maskable interrupts are not accepted right ... interrupts right away? I know interrupt handling routines end with EI ... , but why would accepting an interrupt between EI and RET be ...The SAM CoupeDoes anyone own one of these? I remember being jealous of a friend who bought one of these machines which had a disk that made the system compatible …
... peoples sign SAM COUPE as non ZX computer, but true is ... ports adressation, extended memory, programmable interrupt, midi interface, joystick interface and ...What paging scheme is the "standard" for 128K models?Sinclair implemented an arrangement so that even numbered pages are non-contended, and odd numbered pages are contended (quoting from memory, haven't…
... . This is repeated at each interrupt.
The screen ... The scope shows that the interrupt is actually triggered 22us after ... the reaction time from the interrupt triggering to the moment ... as we calculated for a non contended behaviour.
...Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …
... /> - changable playing speed (even for non-IRQ tunes);
- PAL/NTSC ... (2x6581, 2x8580);
- full C64-interrupt system.
It'll ...Playing SID music on AY??Hello. Some time ago, with occasion of another thread, I was asking about possibility of making a very certain thing - a SID emulator for Spectrum …
... /> - changable playing speed (even for non-IRQ tunes);
- PAL/NTSC ... (2x6581, 2x8580);
- full C64-interrupt system.
It'll be ...New Game! Maritrini, Freelance Monster SlayerAfter experiencing the sweet taste of success, Maritrini woke up one fine day in a mess of bed sheets and with the biggest hangover she could remembe…
... right. You don't set interrupt vector once at start but ... you read it during every interrupt. If you change pages and ... you can place it in non switchable memory or take care ...A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... all available memory, but for non conversational adventures, 640 bytes should ... ZX BASIC provides its own interrupt mechanism, programs using BIFROST* would ...A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... /> ===================
As for the interrupt problem (and I know I ... non-time sensitive isr routines at the end of bifrost* own interrupt ... /> For example, if your Fourspriter interrupt routine starts at 49152, then ...A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... =Timmy;608777]As for the interrupt problem (and I know I ... non-time sensitive isr routines at the end of bifrost* own interrupt ... ]For example, if your Fourspriter interrupt routine starts at 49152, then ...Manic Miner ZX81Hi Guys, Can anyone explain why [url=http://www.worldofspectrum.org/infoseekid.cgi?id=0017539]Manic Miner ZX81[/url] is not able to reproduce the ex…
... ZX81 raised an interrupt at each start of each non-border scanline ... so used to a 50Hz interrupt on the spectrum and the ...ZXDS 0.9.3 beta 1Hello, Today it's exactly five years since the [URL="http://zxds.raxoft.cz"]ZXDS[/URL] has come to life on my DS. To celebrate this anniversary, I h…
... communication, different hw timing, different interrupt handling, different bios calls, or ... even bigger RAM disk (completely non-standard I know)
BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... to be moved inside the interrupt routine, rather than outside where ... /Protracker playback routines take a non-constant amount of time to ... of NOPs until the next interrupt, so depending on how long ... the music player takes, the interrupt can be triggered 0, 1 ...ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…
... i/o and conditions of non-fragmentation is they are putting ... is to have a timer interrupt that can tickle the spectrum ...
