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Basic and AY musicis it possible to play an ay-music in background while a basic program is running?
... contains B0, routine is at B0B0
; Place table at end ... VECTOR * 256 + VECTOR
JR ROUTINE ; place ROUTINE within scope of JR
As to a suitable place for the RAMTOP - well that really ... top of the RAM place your AY routine to fit snuggly to ... -
Basic and AY musicis it possible to play an ay-music in background while a basic program is running?
... really do need a dedicated routine from an interupt. Of ... on ASM and tools for creating it and implementing ... idea how the ROM routine works and also the ... I would suggest the best solution for background music would be ... use an IM2 mode routine (which really isn't ... -
Basic and AY musicis it possible to play an ay-music in background while a basic program is running?
... way - they play a note for a specific duration then stop ... is the type of AY routine I'm talking about - although ... fairly basic one. The actual interrupt routine is trivial. -
games written using game writng programsI was reading through some issues of crash not long back and one article was about some 16 year old that wrote Frank n stein for the speccy(never pla…
... been no work on it for years and yet it's ... great features in place.
For eg, support for almost all Speccy ... +2 and +3 discs). Support for multiple tape formats (one of ... one of the earliest and best attempts at bringing Speccy emulation ... -
How do I avoid BASIC becoming corrupted on returning from a M/C routine?I'm having trouble with my BASIC program becoming corrupted on returning from a m/c routine which sets all the registers (including the shadow regist…
... have to disable the normal interrupt routine if you alter IY. I ... a minute chance that the interrupt could kick in after the ... be there. Does anyone know for sure? -
commodore 64 emulatorsare they any good sites like this for the commodore 64 whats the best emulator for it thanks
... commodore 64
whats the best emulator for it
thanks
place for asking questions like that? -
"TommyGun" gets a complete MAKEOVER for next release ...From the author, Tony Thompson ... """""""""""""""""""""""""" [B][I] I hadn't worked on the TommyGun editor for while. But when I got sick (about …
... sounds like a prime vehicle for doing it.
[/quote]
place for a while now, and indeed ... use some of the plugins for TommyGun, but it really doesn ... author of TommyGun all the best, of course - we need more ... -
Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…
... and Perl snippets included. Optimised for the AY levels used in ... to the coding of my routine - it would be interesting to ... place where the routine could be improved is putting the AY writes for ... -
Amiga MOD on ZX SpectrumWell, there were several question about music matters on WOS lats times, so I decided to describe some of my 'adventures', heheh, with MOD playing on…
[quote]
; h' = loop count for 1/50s to pass, decremented ... handle the effects in an interrupt routine...
I'll try ... working example running before looking for further optimisations. -
VSYNC FunctionI have written a VSYNC function, so that I can clear the screen before redraw without flicker on the screen, I do this by peeking at the address 2367…
Many thanks for the sample code for the Interrupt routine, I shall try this out straight away -
MameI know it's not speccy as such, but I used to have a load of roms for mame, and now the main site doesn't seem to host them. I've been playing a few…
You'll be lucky to find MAME roms on the wwww these days. The best place to look for them is through filesharing software such as DC++ or emule or similar. -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... /> If you have a short interrupt routine, it is possible that the ... high again. For example, if your IM 2 interrupt routine is just a ... pulse width, using the smallest interrupt routine possible ("EI;RETI") though an ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... .
The only reason for using the RETI instruction is ... through PIO, that uses different interrupt service routines. The PIO ... bus can tell that the interrupt routine has ended upon executing the ... is no use for ending the ULA generated interrupt by RETI.< ... -
InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... course.
The only reason for using the RETI instruction is ... bus can tell that the interrupt routine has ended upon executing the ... is no use for ending the ULA generated interrupt by RETI.
for IM2 peripherals. This is not ... -
Commitment to none "Spectrum" computers------------------------------------------ Im sorry that I`ve been unable to browse and search past topics regarding this, but I get logged off a 8 a…
... ! I think the same applies for most people here.
best place to start looking for genuine, practical support ... -
SAGA 1 Emperor KeyboardI have a SAGA Emperor replacement keyboard gathering dust in the attic, and was thinking of auctioning it on Ebay, but don't know what it's worth. Sh…
Speaking about Real keyboards for the spectrum... here is one ... with the keyboard). There is place for Interface 1 and the microdrive ... on the local flea market for his speccy :) REALLY nice... Here ... /1067Pictu.jpg[/url]
Best regards,
Tomaz -
Manic Miner GBAI just got a game boy advance SP and treated myself to a copy of Manic Miner for it. I'm still not too sure about it though. The cover is nice.... …
I'm after a GBA SP for playing some of the retro remakes (primarily Metroid, Ghouls and Ghosts and Manic Miner)
Where's the best place to buy?
Thanks peeps :D -
Manic Miner GBAI just got a game boy advance SP and treated myself to a copy of Manic Miner for it. I'm still not too sure about it though. The cover is nice.... …
The best place to get a GBA SP ... , along with the 512MB rom for back ups and emulators. I ... -
Manic Miner GBAI just got a game boy advance SP and treated myself to a copy of Manic Miner for it. I'm still not too sure about it though. The cover is nice.... …
... , ZX Beccy wrote:
The best place to get a GBA SP ... , along with the 512MB rom for back ups and emulators. I ... emulated?
Thanks again for the info.
_________________ ... -
Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …
... ) is enabled, processor jumps to interrupt routine (TIME: 0)
in the ... border-pixel screen - right border for every pixel line (one line ... /> this is only basic info (for zx48)but it is enough ... border}.
good ideas for writting progs on speccy 48 ... -
Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …
... ; the following definitions are for converting spectrum address space
for obvious reasons).
# ... produces correct result
; for this program
.byte ... repeat
; interrupt routine
; it does the same ... -
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... Start
; **** START INTERRUPT ROUTINE ***
MainLoop:
... ; Get beginning of graphics for sprite
LD E,( ... br /> ; 0FD00 - 0FDFCH Reserverd for IM2 Interrupts
ORG ... -
IM2 Machine Code Sprites Example Code Using Char Based SystemFurther to my earlier post, here are sprites running using char method with IM2 driving it Note, for 48k spectrum using TASM [code] ; ***********…
... ;for smooth return to Basic
; **** START INTERRUPT ROUTINE ... reti
; **** END INTERRUPT ROUTINE ***
MoveAndPrintSprite:
... RET
;prepares interrupt handling
initIM2:
... -
This month's Retro Gamer - Cascade 50 honouredWell, after what seems like no end of Cascade Cassette 50 talk this month at WOS ("50 [I]great[/I] games on one [I]great[/I] cassette"), Retro Gamer …
... even if they do the best they can they probably ... t feel there is any place for another competition of this ... do something the best we can, and for fun to collect ... art to producing the best crap game is to ... people trying to do their best who might make things ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... EI
; Get GFX for char and add offset based ... /> RETI
; **** END INTERRUPT ROUTINE ***
WRITECHAR:
; 0FD00 - 0FDFCH RESERVERD FOR IM2 INTERRUPTS
ORG ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... br />
; Get GFX for char and add offset based ... RETI
; **** END INTERRUPT ROUTINE ***
WRITECHAR:
; 0FD00 - 0FDFCH RESERVERD FOR IM2 INTERRUPTS
ORG ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... :
; Get GFX for char and add offset based ... br /> RETI
; **** END INTERRUPT ROUTINE ***
WRITECHAR:
; 0FD00 - 0FDFCH RESERVERD FOR IM2 INTERRUPTS
ORG ... -
8 BIT WARSwhen 8bits ruled the home market Speccys, C64 and Amstrad were the big 3 fighting it out for supremecy.... but they didnt survive which as we know wa…
... So what machine was the best (not who had the ... who had the best games and the best utilities. Who had ... ther best colour, music and the best ...
Which one had the best basic and was easier to ... the time nor the place for THAT one :p -
Retro Gamer MagazineDoes anybody here read Retro Gamer Magazine? It totally rocks!!! Their coverage on the ZX Spectrum is superb, and a copy of Your Sinclair Magazine is…
Considering this is the best and most famous place for Speccy users you can ... wrong, i dont go searching for old threads but did you ... Speccy articles obviously are the best. -
OT: Where to start with assembler / MC on the PCHi, my apologies for posting on a subject unrelated to the Spectrum. What I would like to know is what's the best place to start (ie. Development pa…
Best place to start:
[url="http:// ... ) newsgroup.
And, just for a laugh, you could also ...
