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A new multicolor engine called BIFROST*I'm glad to announce the release of a new multicolor engine implemented by yours truly, including high quality 16x16 tiles designed by R-Tape: [IMG]…
... taking an exact number of T-states every time regardless of the ... thus hopefully the programmer won't feel compelled to even try ... called 50 times per second at exactly 69888 T-state intervals every ... everything, so the developer won't need to worry about anything ... -
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... tstates in? I really don't believe you can manage a ... ... D = 215 ... Time in T-States between two INs.
I use ... in 290, 349 or 399 T-States
AAAAB = 290
BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... perfect timming. I capture some T-States between two OUT.
bit ... should last 4341 T-States, may take less than 184 T-States T-States or 184 ... = 66288 T-States, the frequency changed.
In summary, every two frames ...BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... detection of sync pulse (first two loops after rotates bits)
T states so you need enough margin ... in the T states for 0s and 1s to ...28-character wide multicolour(ish) on 48k SpectrumLong-time lurker here... I've always been interested in rainbow effects on the 48k Spectrum, mainly from a perspective of "Just what [I]would [/I]ha…
... by 8 pixels you couldn't move the attributes to keep ... then they're two-byte instructions, which take 4 T-states longer (or ... or borders. Then you don't waste too much time with ...BUG in zxspin and SpecEmu - read Loading speed in WAV fileI'm created a new save, but it can run at 44.1 KHz, to test it, i make a new file from WAV 44.1 KHz to 88.2 KHz. Load this file in a emulator zx-spin…
... picture. Divide T-States of pulse by 5.
T-States of OTLA ...
T-States between two data input from audio player (is 26 T-States in ... minimum pulse width of 79 T states (79 / 3.5e6 seconds), ... Minimum pulse width of 190 T-States is 18421 samples/s. It ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... all. Considering you don't have many T-states left per frame, this is ...50Hurts - Full-screen 50Hz 1-pixel scrolling on a 128K Speccy50Hurts - Full-screen 50Hz 1-pixel horizontal scrolling on a 128K Speccy. Graphics are an obvious nod to Joffa, whose games and banter were a big ins…
... all. Considering you don't have many T-states left per frame, this is ...BorderTron 3000A little bit of speccy-related fun for a Friday afternoon... I've knocked together a program for Windows which I've called Bordertron 3000 (a suitabl…
... somehow advanced a cycle or two further into the frame than ... my original, as mine doesn't flicker on either normal or ... timings).
I don't own a real speccy to ... takes an odd number of T states into the waitloop at the ...Mr Do!, and paging ajmoss and othersIn threads like [url]http://www.worldofspectrum.org/forums/showthread.php?p=466099[/url] the possibility of Mr Do! has been discussed, but nothing…
... level, but you couldn't run the original game code ... , so that there are two screen states, one shows the top ... a passage, it doesn't delete the map cell like ... (what there is) doesn't begin to harm the gameplay ... a bad alternative, please don't think that, I want ...Incorrect Spectrum +3 emulation: different results on Fuse and SpecEmuWhen developing and testing [URL="http://www.worldofspectrum.org/infoseekid.cgi?id=0027591"]Rotatrix[/URL], I noticed different results on Fuse and S…
... be as much as 24 T-States between ZXSpin and, basically, everything ... the renderer code has written two lines in succession, in contention ...Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... =aowen;631925]No it wouldn't. This is precisely what channels ... that the FastPrint routines don't do token expansion or screen ... actually sat down and counted T states for any code!
T ... gives a time of 0F+20232T.[/quote]Or about 316T per ...Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
... =Battle Bunny;632048]Recording F+T at the start, and then ... , but then you save 5T states per check on the RET Z ... JP NZ check from 10T states.
So you have 17 ... .
Going on with 5T states extra per char.
You ...Machine Code Routine of the weekHow about a thread that has a routine each week that is in [B]assembly language[/B] and is also described in great detail what the hell is going on …
Comes to 256T per character! Adding:
[code]pstring < ... character print routine in 296T states in 42 bytes. 50% faster ... carefully re-added up the T states. I must have slipped up ...rick robson (YS reviewer)I always liked his reviews. just browsing this one for Spike [url]http://www.ysrnry.co.uk/articles/spike.htm[/url] it says at the end: "*Ed's note…
... involving something like eating two Xmas dinners per day for a week ... always knew Roy Wood hadn't thought that song through properly ...BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... give you something like 6K T-states left before the upper border ... " speed) and 6K T-states after the lower border per frame (enough time ...T-States?Can anyone point me to any good reading (or summarise) that will explain exactly what a tstate is? At the moment for me, tstates are a useful gauge …
... actions take a multiple of T-states to complete. The speed ... an instruction fetch operation that takes 4 T-states to complete. Instructions ... as some number of T-states. The M-cycles themselves ... br />
In conclusion, T-states are the correct measure for ...Zymosis -- WTFPL'ed Z80 Emulation Corebreaking news! i'm back with another useless project: new Z80 emulation core written in pure C! i hear you screaming: "oh, no! WHY?!" let me tell yo…
... compiles in BCB with just two warnings:
[code][C ... logic - it works differently from two other cores I used previously ... . These were taking N of T-States as input and retured N ... of actually executed T-States. Guess I should change my ...BIFROST* ENGINE 1.2 released!Another improved version of the BIFROST* ENGINE is now available! Download it here: [url]http://www.worldofspectrum.org/infoseekid.cgi?id=0027405[/u…
... each line in 207 T-states, thus 17 T-states too fast. Unfortunately there ... render to make it 17 T-states longer within the same number ... of bytes. Also 17 T-states is not enough to jump ... per iteration (total of 144x2=288 bytes) to waste another 17 T-states ...assembly optimization: times tenDecimal numbers are not computer friendly :) Anyway, short of saying "sod it - I'll multiply by 8" - and another part of the program does indeed div…
... a look up table (29 t-states) - but wasting 512 bytes to ... save a 23 t-states...
[code]
LD ... /> This will overlap values for two adjacent entries.
Assuming ...Performance Analyser?Disclaimer: Im asking this question as a "non-programmer" so please forgive my ignorance if this turns out to be a daft question. During the life-sp…
... by the hand, by counting t-states in intense loops like sprite ... ) allows to measure time in t-states between two breakpoints. There are also ... can count the time between two debug OUTs, measuring current, min ...Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... /+2, except everything happens 5602 T-states earlier.
[/LIST]
The ... no memory contention afecting this operation, thus the obtained result corresponds ...BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... about half of the 20K T-states available per frame, so there's ...BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... about half of the 20K T-states available per frame, so there's ...Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …
...
Unfortunately the schematics don't seem terribly easy to decipher ... chips, so I don't know still how it ... instance is 1.5 T-states of time with the ... are met, since the two cannot be synchronized due to ... enough time to do two complete memory reads during ...Fantasy Z80 instructions?This follows on from something catmeows said in another thread, and that I've been meaning to ask for a while. This may sound daft to people with mo…
... (since it would now need two memory reads instead of one ... [U][B]MIND-BOGGING 19 T STATES[/B][/U] for starters. I ... actually called INDEX registers, shouldn't they be like *gasp* [I ... instructions. And while they aren't faster than using HL directly ...95 Amiga cover disks + storage box thingyOK, so this lot isn't strictly speaking Spec-related but I know a lot of people went from the Spec to the Amiga so... Basically, I've got 95 cover d…
... , so this lot isn't strictly speaking Spec-related but ... came with (so there's two disks labelled #15 for ... as there were usually two (or more?) per issue and it ... day) but I can't test it and it might ... tomorrow evening. I don't really like binning old computer ...
