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Fuse/SPIN vs Spectaculator border timingsHello, I'm trying to figure out at which moments the 48K ULA samples the current border color into its internal latch. To do that I wrote a small …
... ULA samples the current border color into its internal ... test that draws a few lines on the top border ... githubusercontent.com/kosarev/zx/master/test/border_timing/screenshot.png
... com/kosarev/zx/blob/master/test/border_timing/border_timing.tap
... -
Hacking the O.C.P Full Screen Editor/AssemblerIf you have been reading my posts recently then you will know that I am eager to have the sourcecode I wrote for the Spectrum during the period 1988 …
... I used as the main test:
[URL=http://img534 ... is a screenshot with RED border timings to show the above sourcecode ... -
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…
... Kendall;621235]I guess the test now is to run fusetest ... , but emulators don't emulate border timings accurately? -
Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... ;628343]BTW, these timings may apply for the brazilian ... there are some differences in timings.
I ... that examines border timings at different positions. In this test, you should ... test should give you detailed information about the scanline timings.< ... -
Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... . Although this is not a test specifically about contention, in practice ... all graphics look perfect in test TK-3: 13472T
[*] ... all graphics look perfect in test TK-4: 11756T
[*] ... ;postcount=7"]#7[/URL], the border timings are also the same as ... -
Brazilian TK90X and TK95SpecEmu provides explicit support for Brazilian TK90X. Other emulators provide indirect support (perhaps the "Spectrum 48K NTSC" option in Fuse?). Al…
... 'll also pass that last test :)[/QUOTE]
I just executed ... . Indeed it passed the last test, but not the first one ... . According to tests, the TK90X border timings are 5603 T-states earlier ... -
Windows emus on LinuxYesterday I tested my new Fuduntu Linux distribution and of course my favorite windows emulators. I was really pleasantly surprised at how well they …
... so I can run some test programs but, first, I have ... you'll be able to test the 50 Hz mode of ... the exact parameters of the border are still something you're ... ll have to use the border timings and pixel clock to determine ... the TK 90X/95's border only changes at 8- ... -
what is the best..............hi there, could anyone tell me what is the best emulater as I no longer have a spectrum but would really like to get hold of an emulator but which on…
... moment, such as incorrect 48k border timings and R-Register emulation being ... -
Well I'm excited, but I guess you might not beHehe this is as far as I got today, a silly little border program: [PHP] ORG 32768 PROGGY: LD C,255 ; We loo…
... 1,2,3,4 for border operations ( :-o ).[/QUOTE]
Modes ... setting bit 7 of the border port, which is what Comet ... 't much use for your border stripes test ;-)
Si -
Groundbreaking gamesWhich games really broke new ground? I mean the ones that actually got around the hardware limitations of the Spectrum. For example: Aquaplane - f…
... that played about with attribute/border timings or multiplexed multiple channels over ... -
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…
... , but emulators don't emulate border timings accurately?[/QUOTE]
I ... measurements than about emulators getting border timings right: it's a far ... -
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…
It's funny, Arjun and I were discussing 48k border timings in #spin the other day - how emulators all use the 24Ts for left and right border from the old Sinclair FAQ. -
Spectrum Emulator that supports low resolutions and runs smoothlyHello to All, I have been trying to find a spectrum emulator that will work well through my CRT TV (using RGB to Scart) Most emulators seem to supp…
... /> I see now that the border timings are when states change internally ... imagined shortfall in the right border width.
EDIT: looking ... cycles of CLK7 later than !Border goes high. The next 8 ... -
Just bought a Spectrum+. Doesn't work. Red bars on screen.Hi all, Something of a noob here. Having recently been on holiday, I came across a Spectrum+ in a box, with a collection of games in a shop, and, af…
... . You will see that the border has a certain colour. If ... have menaged to get a border of another colour than white ... the reset button. Does the border change to white? If so ... it's the former, the border color test won't work. -
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…
... ROM image.
With Spectaculator timings and +3 ROM it will ... (with flicks).
With Spectaculator timings and 128 ROM it will ... emulators had incorrect +2A/+3 border timings when I started this thread ... -
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…
... emulators had incorrect +2A/+3 border timings when I started this thread ... -
TKMEM - the 128K interface for 16K SpectrumsHello all! Here in Brazil, we have made a small production of an interface, totally based on Velesoft?s memory expansion ([url]http://velesoft.speccy…
... understand the ULA timings, though! It seems the timings are '5602 T ... -late) ZX-Spectrum 128K timings' except the border timings are one T-state ... -
spectrum issue 6a oddityMorning everyone Bought a speccy (rubber key) from ebay in near mint condition - couldn't tune in on analogue particularly well so did the comp mod …
... modulator box. Now do the BORDER 0 test.
If that ... still missing the sync with BORDER 0, then it's likely ... /> And, if possible, repeat the test in another TV.
A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... of 8, and adjusted all timings accordingly. But if you try ... t be able to adjust timings properly, so the screen will ... compensate some variation in top border timings... but not much. Ideally ... own spriteLib accessed from top border should always take exactly ...A new full-screen bicolor engine called NIRVANA[I]OK, there's something I need to clarify first: Nowadays if you write [B]"multicolor"[/B] everyone assumes it refers to "multicolor 8x1" (an attri…
... of 8, and adjusted all timings accordingly. But if you try ... t be able to adjust timings properly, so the screen will ... compensate some variation in top border timings... but not much. Ideally ... own spriteLib accessed from top border should always take exactly ...128+ grey screen faultneed help diagnosing this picture,this is not my machine but a picture found online but this is exactly what i found on this +2grey i just picked up.…
What colour is the border?
What test gear / equipment do you have?
[I][B]Mark[/B][/I]Communal Project for ASM NewbiesHi Folks, I tend to learn best by trying stuff and then going through the pain of it not working so that I can research and fix mistakes. I suspec…
I played around with the border timings the other day, amazing idea, ... /> Also I'm flashing the border red for my hit tests ...Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
... show the yellow bar/blue border bars test:-
[img]http ... the left side of the border:-
[img]http://oi67 ...Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
[quote="Your Spec-chum;921232"]Now for Ast_A_Moore's tests part 1. First I thought I'd show the yellow bar/blue border bars test:[/quote]
Yup. Pretty close to what I was seeing in the emulator, but, alas, this is just the tip of the iceberg.Fuse/SPIN vs Spectaculator border timingsHello, I'm trying to figure out at which moments the 48K ULA samples the current border color into its internal latch. To do that I wrote a small …
... emulators and correct border emulation, here's another test for you that ... are also correct ones.
test only 48k / The screen should ... squares on the border.
The test is written to test FPGA emulators ...Need help from people with a +2A/+3Started a topic [url="https://www.worldofspectrum.org/forums/discussion/55141/need-help-from-people-with-a-2a-3"]here[/url] to get a broader reach, b…
... show the yellow bar/blue border bars test:-
[img]https ... the left side of the border:-
[img]https://i ...New Version of MAME Emulator out with enhancements on Spectrum-EmulationNew Version 0.216 of MAME Emulator out with enhancements on Spectrum Emulation: [url="https://www.mamedev.org/?p=476"]https://mamedev.org/?p=476[/…
... more accurate memory access timings for the ZX Spectrum ... timing for screen and border updates, and simplified calculations ... /> * Also updated Z80 timings for MSX, Amstrad CPC, ... drivers: Restore irq length == 32 / border timings. (#9711) [holub]
Questions about the Speccy and it's emulationOut of interest, and to raise another interesting discussion, I have some questions about the Spectrum and it's emulation; 1) Is everything known ab…
... )? Are all of the correct timings, all of the effects of ... all test the emulator, as they need such precise timing and border ...ZX Spectrum 48K clone and test resultsHi! This is my first post, so, first of all, I'd like to say hello to the whole community! I am Alessandro Dorigatti from Italy and I'm developing …
... .
The first failing test is IRContention; I will try ... the text shown by the test and they are in the ... on the left and right border; between the upper and lower ...4116 SRAM replacement (and ULA timings).As mentioned in another thread, I have spent quite a lot of time experimenting with different circuits and components for using a static RAM IC to re…
... the game Chaos as one test. The problem also becomes much ... only suppose that memory access timings for the 5C112E are slightly ...
