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Speccy stuff for sale - some raritiesI've just bunged a load of Speccy games on EBAY , nearly all have a start price of 75p Titles are: SHADOWFIRE (By Beyond) SOLID GOLD (US Gold)- 5 …
Software for sale* Please email me at [email="wadsterboy@hotmail.com"]wadsterboy@hotmail.com[/email] if you're interested in anything. Spectsound (PDQ Software) 5.00…
... .00
Tornado Low Level (Vortex) 2.00
Mission Impossible ...Finishing my Ragnar game...Hi all, Way back then, in my youth, I worked on a game for the Speccy called "Ragnar", which was a 3d isometric style mcoded game written from scrat…
... to work with the frame interrupt (i.e the raster line ... sound (and 4) perhaps also interrupt handling in general?). The help ...IM 2 interrupts and smooth scrolling - easy peasy!Okay, been fiddling around with IM 2 and have actually mastered (I think) how to use IM 2! Now I run my game Ragnar Revival in IM2 and use HALT to sy…
... start
;a test interrupt function located
;at 35002 ... Basic
;prepares interrupt handling
prepint
ld ...InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
...
* An interrupt cannot occur immediately after an ... * M1: 7 tstates: acknowledge interrupt and decrement SP.
* ... * M1: 6 tstates: acknowledge interrupt and decrement SP.
* ... a retriggered interrupt.
Non-maskable interrupt (NMI)
Game loop design?Having some thoughts on how to design the game loop and could do with some hints and tips from folks who have done it before! It's all about how to …
... />
halt ;Wait for interrupt
call drawsproffscr ;Draw offscreen ... synchronized with the IM2 interrupt when the sprite has ... be synchronized with the interrupt no matter if the ... the main game loop, interrupt synchronization and whether I ...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] ; ***********…
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 …
... was only one kind of interrupt, the 50Hz screen refresh one ...100s of games for sale!Dear All In preparation for a move to Manchester, I wish to get rid of the following games as a job lot! The list below should be pretty accurate, …
... (Quicksilva) ?1, Tornado Low Level (Vortex) ?2, The Official Father Christmas ... ) 10p (5 copies), Highway Encounter (Vortex) 10p, Hungry Horace (Sinclair) 10p ... .00
Tornado Low Level (Vortex) 2.00
Mission Impossible ...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 …
... /> It waits till the next interrupt (HALT) so that it is ... />
RET
;PREPARES INTERRUPT HANDLING
INITIM2:
RETI
; **** END INTERRUPT ROUTINE ***
WRITECHAR ...Smooth Masked Sprites using fast page flip on 48k Part 2Ok, After all the suggestions in Part 1, which were all excellent (Thankyou), I opted on the following: I have 2 x 6k Offscreen areas (Yes, that's …
... TO 1
Every Interrupt that's fired (1/50 ... /> RET
;PREPARES INTERRUPT HANDLING
INITIM2:
RETI
; **** END INTERRUPT ROUTINE ***
WRITECHAR ...Wanted: Code to wait until Border has been drawnWhen my IM2 interrupt fires, I want to wait until the ULA is past the first line of display before drawing. I know I need to wait about 14300T after…
When my IM2 interrupt fires, I want to wait until the ULA is past the first line of display before drawing.
I know I need to wait about 14300T after interrupt but how can I tell if the ULA is now past the border and onto the screen?How can I see how long it took for IM2 to runHow can i see how many cycles it took for my interrupt routine to run, is there some way with Spectaculator debugger etc to see how long it has taken…
How can i see how many cycles it took for my interrupt routine to run, is there some way with Spectaculator debugger etc to see how long it has taken from entering the IM2 routine to RETIDoes ScanLine[0] have a left border?My emulator couldn't handle Cobra or ShortCircuit so I added some rough port FF values. I now want to make it a bit more accurate. The FAQ gives me a…
... 224 T states. After an interrupt occurs, 64 line times pass ... are the 24 tstates the interrupt?
3) Skipping ahead ...Wanted - A loving new homeThanks to an imminent house move, it's time to dispose of some of my excess Spectrum tapes. I'd like to donate these to the Preservation project to u…
... /> Best of 3D ? Tape 1 ? Vortex (Revolution / Highway Encounter)
Gremlin ...Flicker on my scrolling demo, any ideas?I have created a scrolling demo downloadable from [url="http://www.peargames.co.uk/downloads/scroll.z80"]http://www.peargames.co.uk/downloads/scroll.…
... manipulation, and runs at every interrupt, and takes 1/25 second ...Games Club - Week 23Hi all, Last week I asked you to nominate games written by Chris Hinsley and I received the following nominations Pyjamarama Equinox Frost Byte …
... to nominate games released by Vortex software the complete list is ... .worldofspectrum.org/infoseekpub.cgi?regexp=^Vortex+Software$"]here[/url]Games Club - Week 24Morning all, last week I asked you to nominate games released by Vortex Software are received the following Revolution (1 nomination) H.A.T.E (2 n…
... to nominate games released by Vortex Software are received the following ...FrameSyncIt was many many years ago since i programmed assembly on the spectrum but I just picked it up again for fun. Now this is one thing I can't remember…
... using the NMI or other interrupt source. I can't remember ...Lost for WordsWhen you are lost for words then this Euphemism Generator may be the thing you need [url="http://walkingdead.net/perl/euphemism"]http://walkingdead.…
... as I find that they interrupt the flow of the rappin ...Beginner InfoI have trying to find some hardware information for use with assembly coding but havn't had much luck. For instance. How do I redirect the vertical …
... I redirect the vertical blank interrupt so it points as my ...Tron !!!I remember playing this game down the arcades when i was a kid and spending most of my pocket money on it ! It was released as a game but i cant reme…
... came from some sort of vortex the tank scrren and some ...two areas of display[quote]Since Timex and ZX Spectrum 128K have two areas from which the screen can be displayed, there's a possibility to switch the areas at every fra…
... the areas at every frame interrupt (50Hz).[/quote]
I ...Rst #38This, as far as I know, is the ROM procedure that does the keyboard check. (and, at the same time, is what's being executed by interrupt in IM 1 mode…
The BASIC ISRFirst of all, excuse me if my blatant ignorance about this topic makes me write some nonsense :) The thing is that I'm finishing a game in mixed BAS…
... best solution is having an interrupt service routine which calls the ...TS2068 - SPECTRUM 48k Compatible Games ListHey guys... Follows the list. These are just the games I tested, there is still a long way ahead... As soon as more games are tested, their names w…
... Tunnel.tzx Failed
3D Vortex.tzx Failed
3DC (Encore ...Games for sale including rare utilitiesAll in good and complete condition unless otherwise stated. Postage not included but typically 50p-100p per item. The more you order, the lower the p…
... tape) ? 3
Highway Encounter (Vortex) ? 2 (2 copies)
Championship ...Noob to Z80 needing +3 helpI'm quite new to z80 programming, but i'm attempting to write some kind of windowing system that will run alongside BASIC on my +3 with Kempston mous…
... be calling +3DOS and running interrupt code here, so i think ...Help with creating .ayI am trying to create an .AY file for Sidewalk. Now this is the first time I am trying to do anything like this, so please bear with me. Using Spin's…
... to make sure a correct interrupt handler is called and sets ... =0
INIT=#c5fc
INTERRUPT=#cf7d
SongLength=65535
