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A z88dk + sp1 demo (with source)Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how e…
Since nowadays people are still wondering about how difficult it is to make something in z88dk, I thought I just put a very simple demo to show how easy it actually is. (Actually I've already published this one some time ago, but this time the source is ... -
Collection Worth Saving?Hi, I've recently been reunited with my childhood collection of spectrum items - a boxed +2, original and a couple of Cheetah joysticks, loads of mag…
... Mission II Tape
Incredible Shrinking Fireman Budget
Indiana Jones ... -
Disable interrupts?Well, I've read the bits from the David Webb book about interrupt modes and (vaguely) appreciate the principles behind having a vector table, after r…
... the David Webb book about interrupt modes and (vaguely) appreciate the ... -
Multicolour demo using z88dk + BIFROST* (+source)This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/sho…
This is just a demo to show how to show multicolour using z88dk, using the BIFROST* engine (more info [URL="http://www.worldofspectrum.org/forums/showthread.php?p=608777"]here[/URL]).
[IMG]http://www.image-share.com/upload/1337/164.png[/IMG]< ... -
ZXodus II previewAlthough ZXodus II is still under development, the author Andrew Owen authorized me to make this "preview version" available for anyone interested on…
... music
[*]BEEP effects
[*]Interrupt manager (supports defining additional interrupts ... -
Interrupting emulation if Multiface isn't availableA few years ago I asked about how to exit to BASIC when the BASIC environment is still available and stable. Now I have a similar question... Certai…
... unavailable. If I want to interrupt emulation and return to BASIC ... -
countdown timer ?just curious if there was a pre-made one about that I could use to count down from 999 to 0. in MC / under interrupt, that returns to basic? but how…
Byte-order backbufferThis is a tool for Z80 coders who wish the Spectrum screen had a serial layout. It runs as an interrupt mode 2 service routine and uses POP and PUSH …
... .
It runs as an interrupt mode 2 service routine and ... /> jp 56 ; exit via BASIC interrupt handler
blit: ; subroutine ... /> jp im_main ; jump to main interrupt handler
org 0xfff7 ...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 isJob lot of various hardware & software for sale.Hi, I put a post up a while ago and sold a lot of my stuff but I've still got a boxful left over, is anybody interested in taking it off my hands? I …
... - doric computer services
incredible shrinking fireman - mastertronic
sweevo's ...Optimisations 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 ...Cover Tape Sale -Crash, Sinclair User & Your SinclairGents I have a considerable number of cover tapes for sale if anyone is interested details as below: [B]CRASH COVER TAPES [/B] October 87: Crash S…
... (Ocean), Super Stuntman (Codemasters), Incredible Shrinking Fireman (Mastertronic), Hyper Lane (Powertape ..."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 ...
