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Sound designer wantedAs you may or may not be aware, in a complete IP violation, and written up as a HOW-TO tutorial, I'm writing a pac-man clone. But I'm crap with soun…
... /> Short enough sound to not interrupt the game (except for intro ... -
yeah x 0.0.2first: [URL="http://www.yeah-unix.org/downloads/yeah_0.0.2.tar.gz"]the goods are at - http://www.yeah-unix.org/downloads/yeah_0.0.2.tar.gz[/URL] aft…
... NMI),
- timer management (50Hz interrupt hooks and chaining, mostly used ... -
Between interrupts and handlersSee there's this short period of time immediately after an interrupt comes but [i]before[/i] the control is transferred to an interrupt handler, abou…
... of time immediately after an interrupt comes but [i]before[/i ... control is transferred to an interrupt handler, about 17-19 T ... -
Jelly-Vision!As threatened in the "'Spectrum Play' Error" thread, here's a ruff'n'reddy interrupt driven full screen wobbling routine which has no practical use w…
... 's a ruff'n'reddy interrupt driven full screen wobbling routine ... -
Simple explanation of interrupts (in the context of Z80/Speccy)I wondered if somebody on here could explain in simple terms how interrupts work on the Speccy and where interrupts are source from. Are they a natur…
... -frame, can you schedule an interrupt or trigger one manually? Are ... own handler, or does each interrupt go through a list (or ... -
64x48 full colour graphicsHow feasible is this? Could an interrupt-driven routine be used to, for example, fill the top two thirds with a 64x32 blocky picture and leave the bo…
... feasible is this? Could an interrupt-driven routine be used to ... -
BIFROST* Advanced Programming - part 2This second demo shows animated and moving tiles together, and also how to implement collision detection. This knowledge should be enough to implemen…
... frame synchronization because, if an interrupt occurs in the middle of ... -
The need of having a 257-byte table for IM2 routinesThis came from a discussion at the speccy.org forum. I have understood that the reason behind the 257-table for IM 2 routines is due to certain joys…
... bus, messing around with the interrupt routine address calculation.
(Re) building a ZX Spectrum laserharpThe Cambridge show is nearing, and I want to bring my laserharp with me. Why? Because it's built around a ZX Spectrum +2: [IMG]http://benophetintern…
... it about 8x per Z80 interrupt, I will stick at about ...recovering the stack after an errorMy normal error handler starts with the stack as reset by LD SP,(ERR_SP) in $0053 ERROR_2, sets up some stuff and returns to BASIC via a "JP C,$1e73 …
... because if there's an interrupt between $0058 and my routine ... history gets overwritten by the interrupt routine and everything goes to ...multi-scroll m/c subroutine for BASICArising from recent posts, here's a scrolling routine that will manage multiple left/right scrollings for any (sensible) line width or step; (ie. whe…
Arising from recent posts, here's a scrolling routine that will manage multiple left/right scrollings for any (sensible) line width or step; (ie. where width isOptimisations in Exomizer Z80 decrunch codeThis is the 163 bytes old code (simple and optimized): [CODE] ld iy, exo_mapbasebits ld a, 128 ld b, 52 push de exo…
... 's used by Amstrad CPC interrupt routine. Also there is a ...Zero 0.5 ReleasedAfter a bit of a hiatus, the next update of Zero is now available [URL="www.ramtop.wordpress.com"]here[/URL]. Feedback and bug-reports appreciated! …
... options to break on interrupt and re-triggered interrupt.
* Made the ...Microcontrollers and the SpectrumBeing unusually busy lately, I didn?t get a chance to comment at the time on a remark in an older thread, but I shall take the liberty of doing it no…
... hardware timers and a complex interrupt logic, but it can also ...POKE for Game Cheats without e.g. Multiface NMI HardwareHello, can someone tell me a way for entering game POKEs without any Hardware / NMI Button Interface ? Is there a software which can be pre-loaded…
... /> via a hotkey combination to interrupt the game and to allow ...DIVIDE versus ZX128 ROMDivide interface use hardware mapping of extra memory on this fixed points in 48rom: #0000 - power-on/reset/rst0/software restart #0008 - syntax erro…
... - syntax error
#0038 - im1 interrupt/rst #38
#0066 - nmi ...Spectranet firmware update: TAP file loading fixArchie Robins discovered a problem whereby interrups were being erroneously enabled on the return from a tape trap (that is, when TAP files are being…
... be overwritten if a ULA interrupt occurs. This is usually bad ..."Chronos": how fast should it really be?I was reading [URL="http://timfollin.pwp.blueyonder.co.uk/Archive.htm"]Tim Follin's webpage[/URL] the other day and came across a curious remark abou…
... not synchronised to the frame interrupt, so it runs at approximately ...Chronos (BUGFIX)Please add the following "known errors" entry to [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0000951"]Chronos[/URL]: [QUOTE]Bugfix provid…
... not synchronised to the frame interrupt, so it runs at approximately ...Enable 128kB paging in emulatorFrom Zx Spectrum documentation ([url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url]) [CODE][SIZE="1"]When memory is being pag…
... going to change. If normal interrupt code is to run, then ...trying to read keyboardI have the speccy in interrupt mode 1 I used 'IM1' in assembly language then Im printing the contents of memoryu area 23560 to the screen: [quote] l…
I have the speccy in interrupt mode 1
I used ' ...Hardware description - BETA DISK interfaceExist more versions and clones of BETA DISK interface. Beta disk 48, beta disk 128, brasilian clones of beta disk 48, russian clones of beta disk 128…
Hardware description - DivIDE interface[B][U]DIVIDE interface / DivIDE 2k11[/U][/B] [B][U]The main description[/U][/B] DIVIDE is IDE interface with own external memory. Thanks to very goo…
... /> [B]#38[/B] (im 1 interrupt routine)
[B]#66[/B ...Adding a pause key to ArkanoidHaving rediscovered the simple pleasure of playing 1980s games on genuine 1980s hardware, I've also remembered that emulation can provide a feature m…
... are unpaused
ei ; restore interrupt handler
jr .return_to_game[/CODE ... ]
(Arkanoid installs an interrupt handler. I don't know ...z88dk and im2I set up a minimal IM2 mode so I can draw sprites for a laff [code] #include <string.h> #include <stdio.h> #include <im2.h> #include <stdlib.h> #in…
... instruction at address 0xd4d4 (interrupt service routine entry)
... br />
; pointers to interrupt routine.
defb 200 ... byte.
im2 ; select interrupt mode 2.
ei ; ...that "listing variables during runtime" thingWell, I did eventually finish this, but with my meds playing up I don't have much time each day that I can spend at the computer, so it's taken rathe…
... than writing a separate IM2 interrupt routine I decided to use ...Beepola vector tablesWhat are the 'interrupt vector tables' at FE00? Is it interfering with my other routines at 65000 onwards? will setting the IVT to ROM make any di…
What are the 'interrupt vector tables' at FE00?
Is it interfering with my other routines at 65000 onwards?
will setting the IVT to ROM make any difference?Hacker Chris' Christmas Demo doesn't work[url=http://www.worldofspectrum.org/infoseekid.cgi?id=0007314]Christmas Demo[/url] .z80 file from WOS doesn't work for me. I tested in Fuse and SpecE…
... a HALT instruction with maskable interrupt disabled.
Is the ...
