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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 ... -
Game loopJust working on my first ever Spectrum game, and am struggling to work out what the game-loop should look like. I've got interrupts enabled (mode 2)…
... not doing anything in the interrupt routine at the moment.
loop: halt ; wait for interrupt to occur
clear_sprites
Pro Tracker song to STC Soundtracker extensionHi. I have a .pt3 file and I need to convert it to .stc , and I also have a .txt file playable in vortex tracker. How should I convert these files ( …
Hi.
I have a .pt3 file and I need to convert it to .stc , and I also have a .txt file playable in vortex tracker.
How should I convert these files ( .txt or .pt3 ) to .stc ?
Thank you very much in advance!
D.H.Scrolling Bi-Colour Engine for 4-Player GamesJust putting this code up for people to have a look at. Far from finished. Should simply compile and run a bit of a demo. Only good for 128K and +…
... br /> di
;Interrupt vector table to go at ... />
;Copy main interrupt handler into place:
ld ... />
;Main multicolour interrupt
;--------------------------
multicolour_interrupt_A
...48k AudioI'm at the point in my game where I could use a few beeps and bloops. Ive been looking at loads of different speccy books, but this whole business of…
... , but this whole business of interrupt driven audio is proving to ...Address bus contents (i.e. PC) during execution of HALTI'm wondering if anyone can tell me what's placed on the address bus during execution of HALT, beyond the initial M1 cycle. The Z80 user manual state…
... [I]before[/I] the interrupt is acknowledged, and that the ... the return address of the interrupt handler. Firstly, if the ... seem simpler in the interrupt acknowledgement not to deal ...
For NMI and maskable interrupt acknowledgement, it contains:
Making AY musicCan anyone recommend an AY music making package that is as user friendly as Beepola is for the speccy beeper? And do they make their own interrupt r…
... do they make their own interrupt routine/is it easy to ...VT2 hobeta player?I am trying to build something with a hobeta with player exported from vortex tracker ii. I want to be able to run the file on a standard 128K. I am …
... hobeta with player exported from vortex tracker ii. I want to ...RedBox for Mac[img]https://dl.dropboxusercontent.com/u/15659782/RedBox.png[/img] [url]https://dl.dropboxusercontent.com/u/15659782/RedBox.dmg[/url] RedBox is the…
... release includes only BeepFX, Tiled, Vortex Tracker II, and ZX-Paintbrush ...New version Emulator ZEsarUX-1.0Hi I have uploaded a new version of my Spectrum/ZX80/ZX81 emulator. This is a major stable version, with real timing for all the models and with hi-…
... in border, colour ula delay, interrupt starts at video display (not ...Hooky - hook ZX ROM and rewire RST and NMI to RAM - rantThis is a rather long rant. Not for short tempered. :) The objective is to hook into RST "vectors" and NMI on a Spectrum without affecting the normal…
... instructions there is also NMI interrupt which /when triggered/ jumps to ...MIA: Airline SoftwareAs discussed in another thread, I was recently reunited with a box containing most (not all) of my original cassettes. Thanks to the advice and help …
... /> 07. Hex Package
08. Interrupt Driven Clock
09. Message ...Weird symptom number 2...I got a new keyboard membrane for my Spectrum+ plugged it in and low and behold the weird left to right printing of the copyright message disappeared…
... ).
It could be interrupt related, how do interrupts occur ...HALT: Why always 4ts?Instruction breakdown of halt is like that: PC 4ts. That means it fetches instruction byte from ram which tooks 4 ts and then does nothing and read…
... again until a reset or interrupt.
if halt is ... 4 ts to handle the interrupt?
I mean if ... at cycle 5, and if interrupt triggered at cycle 6, cpu ... will not jump to interrupt until cycle 9.
Playing AY music on the SpeccyCan anyone help with playing AY ripped music on the Speccy? So, let's say I want to play some ripped AY music, such as: [url]ftp://ftp.worldofspect…
Problems with AY sound. Experts needed. :-)<div><span style="font-family: Arial, Verdana; font-size: 13.3333330154419px; line-height: normal;">I need to play some AY sound effects, so I've bee…
... some changes to not use interrupt or have self-modifying code ...Odd joystick interface / startup behaviourI was experimenting with setting up a machine to run [i]Bomb Munchies[/i] at the weekend and was surprised by a particular condition that caused my +…
... , or OUT commands or odd interrupt states that may trigger a ...Emulator support to paste textIs there any emulator that supports pasting text ? Something like: - for every ZX frame (just after interrupt) "insert" a new char (force keybo…
... every ZX frame (just after interrupt) "insert" a new char (force ...z80 assembly helpEver since I was a child I wanted to program my zx81 then my zx spectrum + 2. However, it was such a mystical beast and I only ever used BASIC not kn…
... /> delay0 halt ; wait for an interrupt.
djnz delay0 ; loop.
ZX Uno programming competition[b]Rules[/b] - The game tematic is free. The languaje can be english or spanish. - You must use Radastan video mode in the game as principal. - …
... /> - Mix video modes (using raster interrupt). Example: Text adventure with graphics ...help with vortex tracker music?I need a little help making music for my popeye game it is going to be a very simple rendition of the 80s coin op but for me is a bit complicate …
I need a little help making music for my popeye game
it is going to be a very simple rendition of the 80s coin op
but for me is a bit complicate
can anyone help?Which peripheral listened on port $9f from back in 1984 (Chuckie Egg related)Hi Apologies if this is in the wrong section, please feel free to move it to the correct one if so. I've been looking through the Chuckie Egg c…
... in the middle of the interrupt service routine (ISR) and was ...Publishers logos and biosAs we are getting more development done, we are looking at extra details not currently available, so will be creating new categories asking for submi…
... /> New Generation
Psygnosys
Vortex
[09/04/16 ...
Silversoft Ltd - 02
Vortex Software
PIM Software
Vortex Software - 01
Vortex Software - 02
Vortex Software - 03
Vortex Software ...Reading sequential key pressesI am thinking about writing a quick game and have an idea that requires me to read alternate key presses. I’m thinking along the lines of Daley Thomp…
... for key presses on every interrupt? Anyone got any views on ...
