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InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... (maskable) interrupt. On the 48K machine, this is generated by the ... cute trick on the 48K machine would be to use spare ... -
TommyGun - Utility ... what's going on...For those interested, Tony has been busy lately and unable to put as much time into TG as he'd like. He also has a child on the way soon. He told me…
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A) It's a machine gun, dummy! Okay, seriously. Some ... -
Spin interface enhancements...Seeing as I had so much luck with my suggestion of adding the 'keystick' feature to Spin last time around, I thought I'd try my luck with a couple of…
... . I'm emulating a 48k machine, I right-click and can ... -
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…
... , a 16 bit, multitasking Sinclair machine that deserved a chance, and ... -
found old magazineHello fellow Spectrum worshipers :) As I was not sure where to post this, so I posted it here. I guess anything can be posted under miscellaneous. …
... was hundreds of lines of machine code or basic that one ... the hundreds of lines of machine code again! lol
The ... -
lots of speccy hardware software on offerHave the following available from "breakup" of my speccy system and peripherals Microdive with cable, numerous microdrive catridges plus manual Int…
... a few on a friends machine but most loaded Ok..certainly ... -
Interrupt driven code at overclocked pace....Is it possible for a MC coder to do a routine (i.e. interrupt music player, for within/during Basic)if he knows said machine is running at 400 percen…
... Basic)if he knows said machine is running at 400 percent ... -
Thundercats episodes in the UKHi all... This is a request for help from Thundercats fans in the UK.. I'm trying to build up my collection of episodes but all I can get is downlo…
... a lightpen for the 48k machine along with a CD of ... -
ANTIQUE TOY 2004 - vote!!Hi there, don't forget to vote in ANTIQUE TOY 2004 virtual zx-compo. stuff and vothesheet is still here: [url="http://scenergy.natm.ru/files/atoy_…
... vote in ANTIQUE TOY 2004 virtual zx-compo.
stuff ... -
Best chess game on SpeccyNot the most exciting topic in the world, but I'd like to know what you think was the best attempt at the ancient game on the Speccy. I remember a bi…
... program in paticular on the machine (he was a big chess ... -
Dave Perry InterviewI conducted this interview with Dave Perry, famous for games like Turtles, Trantor, Extreme and Dan Dare 3 to name but a few... Enjoy! Dave Perry wa…
... color as possible from the machine. (Extreme is a good example ... -
128k and BRIGHT?Just loaded up Arcadia (nice game, BTW). I have side by side a 128k and 48k Speccies and both are connected to the same tape player. So, I loaded the…
... . Then I restarted the 128k machine and tried manually turn BRIGHT ... -
???? 2Anybody here know how to program z80 ???? Anybody here know assembly / machine code ??? Anybody here know how to locate cheats / pokes ???
Anybody here know how to program z80 ????
Anybody here know assembly / machine code ???
Anybody here know how to locate cheats / pokes ??? -
???? 2 Anybody here know how to program z80 ???? Anybody here know assembly / machine code ??? Anybody here know how to locate cheats / pokes ???
Anybody here know how to program z80 ????
Anybody here know assembly / machine code ???
Anybody here know how to locate cheats / pokes ??? -
What hardware Sinclair and not related has everybody got?Just had to try to list all my clutter in the attic and my dads garage (this has got a bit out of hand), anybody else got as much Retro as this (boug…
... *Grandstand pong/squash etc tv machine
2*Sega Master Systems ... unit
1*Tv games machine (nes ripoff)
1*Sega ... -
Wanted: Machine Code Sprites and Graphics AlsoI also have been after this bool for a long time You can view the cover at [url="http://www.peargames.co.uk/images/book.jpg"]http://www.peargames.co…
I also have been after this bool for a long time
You can view the cover at [url="http://www.peargames.co.uk/images/book.jpg"]http://www.peargames.co.uk/images/book.jpg[/url]
Please help
Rob -
Machine Code Sprites Example Code Using Char Based SystemBelow is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifti…
Below is my WIP code to do smooth screen wrapping sprites using char positions and offsets, as opposed to writing direct to a line (0-191) and shifting bits.
You can download the snapshot from
[url="http://www.peargames.co.uk/downloads/ ... -
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] ; ***********…
Further to my earlier post, here are sprites running using char method with IM2 driving it
Note, for 48k spectrum using TASM
[code]
; ********************************************
; Char Offset Sprites Demo< ... -
In need of a Poke (ooer!)Back in my very basic Basic days, machine code was a scary thing. I think I advanced as far as 'LD HA' (or something!) before giving up. However, so…
... my very basic Basic days, machine code was a scary thing ... -
Popeye - help!I've been playing Popeye (the first one by Don Priestly) and completly stuck. I've been using the map at: [url="ftp://ftp.worldofspectrum.org/pub/si…
... coin for the fruit machine, does the machine serve any purpose in ... -
Where do you start!I am fairly new to spectrums, and have only been programming for a couple of years starting on bbc basic. where do you start programming a game. Is a…
... game. Is an understanding of machine code vital, and if so ... "Idiots Guide" to programming using machine code.
at the moment ... -
what extra port for extra memory ? (256K, 512K, 1024K, etc.)I know that Pentagon uses some extra bits from port 7FFD for extra memory pging: - for 512K model, bit 6 & 7 of port 7FFD - for 1024K model, bit 5, 6…
... value than the one after machine boot, then the computer would ... -
Open vs Closed Source Emulators.[quote] On 2004-09-02 01:51, cyborg wrote: [quote]Additionally, an emulator author may not have access to a recent Microsoft compiler and/or the appr…
... compiler and/or the appropriate machine/OS to run it on ... -
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, …
ANN: Issue 10 of Sam Revival Magazine Out Now (Sam CoupIssue ten of Sam Revival magazine is out now, and features an exclusive game on the coverdisk. The magazine starts off with the usual Quazar News, a…
... to emulate the PacMan Arcade Machine! His feature article in this ...UKretro.co.uk - Website UpdateHi, The latest additions to our site ([url]www.UKretro.co.uk[/url]) are listed below, Best Wishes, Mike [url="http://www.UKretro.co.uk"]www.UKretro…
... Challenge - Martech - C64
Mean Machine - Codemasters - Commodore 64 128 C64 ...Windows SP2Completely OT, but if any of you have, or get a 64bit chip, windows xp sp2 seems to knacker the machine. Mine was locking out every 30 seconds for a…
Completely OT, but if any of you have, or get a 64bit chip, windows xp sp2 seems to knacker the machine. Mine was locking out every 30 seconds for around 1 second.
Just killed it and it looks like it works OK.First on Speccy, later in the arcades?I don't know exactly, so this is the question: there are some original speccy games that deserves an arcade conversion? or at least an arcade machine…
... ? or at least an arcade machine based (idea, gameplay, graphics) in ...A bug in Z80 V4.00Yes, from what I've heard, this emu has plenty of bugs (though I've never heard what they actually are), but this one is my contribution to the bug l…
... command to set up a virtual drive; e.g. I used ... " window, log on to the virtual drive (Z: in the above ... the root directory of the virtual drive (even though you're ...Techy Z80 questions****** Question 1 ****** Take the instruction SET b, (HL). This is broken down (in machine cycles) as follows (according to Microprocessor Technolo…
... /> This is broken down (in machine cycles) as follows (according to ...