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What is needed to get a high standard , "emulator focused" PC?The implication I am making is that a normal PC can be improved on emulation wise by building in some emulation friendly features . But this could be…
... know generated picture 50 times per second
Typical graphic cards ... on real Spectrum as some frames are displayed twice or skipped ... -
How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…
... a 50Hz timer only. Think frames, not instructions. Make a bitmap ... if it executes 50 times per second the sensitivity is the same ... -
How do emulators make code appears as running at 3.5Mhz?Decent Z80 emulators on github return t-states after executing an instruction, giving you the ability to emulate Speccy relatively well. But there ar…
... a 50Hz timer only. Think frames, not instructions. Make a bitmap ... if it executes 50 times per second the sensitivity is the same ... only scans the keyboard once per frame and presents those values ... the next 50th of a second. -
50+ FPS GAMESHi guys) Which was the first Speccy game with 50/60 frames per second? And what was the main reason? Thank you
... picture elements from the adjacent frames, or even an I- ... frame, which can be many frames behind the currently displayed one ... . We still use the frame-per-second metric for those.
... the application of the frame-per-second term should distinguish between a ... -
Is it possible to use two spectrums linked with one acting like a co-processor?Just wondering. Would be kind of interesting, but I guess two interface ones would be needed, or was there other ways to connect. What about ear t…
... . A 25 frame per second game will become a 50 frames game. Calculations ... -
YM effects on Atari ST reproducable on Speccy?From the YM music format site: "SID-Voice SID-Voice is a great sound trick on the ATARI, because of low CPU consuming and great sound effects. It …
... we would get less interrupts per second, but couldn't a similar ... -
AY-3-8912 help !Hi all. Happy new yeay. I'm new to spectrum programming, and am interested in writing some music for the +2 AY chip. The problem is...I cant find …
... to know how many times per second I can access the sooundchip ... being wrting a data line per access, ie data for every ... -
AY MusicHi all. Happy new year! I'm new to spectrum programming, and am interested in writing some music for the +2 AY chip. The problem is...I cant find a…
... to know how many times per second I can access the soundchip ... being wrting a data line per access, ie data for every ... -
ZX Spectrum BogoMipsBogoMips value gives some indication of the processor speed, and is one of the most used way of comparing diferent systems. The definition of BogoMi…
... "the number of million times per second a processor can do absolutely ... lops=$40000
;lops (loops per second)
;result =lops/ticks ... -
Time travel...Time travel is a very, very interesting concept. Surely everyone has dreamt of going back in time, to see how things used to be, or of going into the…
... Earth travels at eleven miles per second through space. So if you ... -
One Liner - Machine CodeHi Dr. BEEP, Digital Prawn, et. al., I think that what you guys have achieved with the one liner contest is absolutely amazing. It brought about wh…
... animation (currently running at 50 frames a second
2) Bounds checking ... -
Graphic equalizer m.c. program neededBack in the 90's I had a full-screen attribute equalizer that was simple, yet very impressive. We used to listen to Vangelis or Jean M Jarre by conne…
... perform this operation several times per second, to prevent it from reaching ... -
Watching screen while debugging???I'll try to state my problem clearly, but I don't know if I'll succeed ..:) I load a Spectrum program into emulator (it doesn't matter which one at …
... , which refreshes screens 50 times per second, reading the screen memory [U ... -
(not quite as) Nice PhoneMy dad brought me a phone home from his latest work trip to the Caribbean, so I am now the proud owner of one of these: [URL]http://alistairsserver.n…
... giving the exact 10 impulses per second (I checked on a 'scope ... -
Some DVD and film questions1. You know how some DVDs are region free (either because they are released that way, or because they are copies of region protected DVDs that have h…
... fifty frames a second on a PAL TV, and sixty frames a second, with ... -
Adjusting your code for screen refreshingOk, I'm aware that I should know it already after writing 5 Spectrum games in machine code but interrupts and screen refreshes were always my weaker …
... does screen refreshing 50 times per second. The refresh begins from top ... -
42 colums in screen, in anywherethe routine write in anywhere of the screen, it can start to write in 32X24 position and write from it in 42 colums, it is utility to have border wit…
... routime, can write 1000 character per second
[url]http://z80user.zobyhost ... -
Average PC Memory size increasing by 48K every half hourAs I'm absolutely sure everybody here is aware, Moore's law states that the number of transisters in a device will double on average every 2 years. …
... As average memory increases, price per megabyte usually halves over the ... two years, 42% increase required per year)
[/LIST]
per year increased for average PC ... than an Amiga 1200 per day)
[*]Per second memory increase == 28 ... -
JSpeccy v0.89 Christmas 2011 EditionHi, After seven months of hard work, tonight I've released a new JSpeccy version as my humble Christmas gift for all the community. As my webpage i…
... dialog, with updates one time per second (when JSpeccy isn't paused ... -
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…
... : POKE 64940,0: REM 2 frames per animation
#asm
ld ... : POKE 64940,7: REM 4 frames per animation
#asm
ld ... -
(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…
... can make 20.000 steps per second!!
As I am moving ... stick at about 400 steps per second, but believe me: that's ... -
Batman: Arkham Knight (oh dear!)<span style="font-weight: normal;">I'm surprised that no one's mentioned </span><span style="font-weight: bold;">Batman: Arkham Knight</span> on here…
... to less than one frame per second on rare occasions), graphical glitches ... -
Understanding tape edgesI've never done any tape reading code. But I've read about these "edges" on multiple occasions. Trouble is I don't understand what they heck they are…
... 260 ones and 260 zeroes per second (i.e. a pattern 101010101 ... -
Chess engine championshipsI've been following progress of Lc0, or Leela Chess Zero. It's a neural network that has taught itself to play chess. 9 months old now, and it's pr…
... 14 thousand nodes per second, Stockfish at 22 million nodes per second.
First ... -
Zynaps scrolling - anyone ever reverse enginnered this?Zynaps has IMO some impressive scrolling - it utilises 18 character rows of the display file, so quite a large active play area, and scrolls 2 pixels…
... time at a constant 25 frames per sec. I think it would ...
