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Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
The FAQ says the top 32K is uncontended on the Timex so there shouldn't be a problem with contention with the code or the stack. -
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
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Does the contention pattern look at all right ... ?
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The contention pattern is different to the ... -
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... an INC C opcode. Any contention on the memory read prevents ... -
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... than I !
And contention throughout the whole display area ... -
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
I've put these contention changes into SpecEmu and Shock runs perfectly in +3 mode.
Ok, so it ran perfectly beforehand with the FAQ figures but at least nothing broke :) -
Interrupt timingsHow long does the ULA hold /INT low for on interrupt on each of the Spectrum models?
... clear that we have a contention sequence of 1,0,6 ... apply a single cycle of contention in there I'm wondering ... if somebody could run that contention program once more and see ... -
Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... the floating bus and memory contention. However most software will run ... -
Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... many correctly take care of contention and display timing.
Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... many correctly take care of contention and display timing.
[/quote ... if you completely ignore memory contention and just plot the display ...Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... if you completely ignore memory contention and just plot the display ...Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
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IMO, memory contention really isn't hard to ... something morally equivalent to tstates += contention[ tstates ] around your code.
How many T-states takes PUSH DE ?Hi. Just a quick one. According to z80.info docs, a PUSH DE should take 11 T-States to be executed. But WHAT if SP is pointing to Contended Memory,…
[url="http://www.worldofspectrum.org/faq/reference/48kreference.htm#Contention"]http://www.worldofspectrum.org/faq/reference/48kreference.htm#Contention[/url]
D.How many T-states takes PUSH DE ?Hi. Just a quick one. According to z80.info docs, a PUSH DE should take 11 T-States to be executed. But WHAT if SP is pointing to Contended Memory,…
... .org/faq/reference/48kreference.htm#Contention"]http://www.worldofspectrum.org/faq ... /reference/48kreference.htm#Contention[/url]
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Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... many correctly take care of contention and display timing.[/quote]
Memory contention is very easy to code ...Which Emulator do you use the most? and whyI currently use ZX32, it's free, which is great but it's not as fast as I'd like. Please everybody, tell me your fave emulator and why. I'm quite …
... :33, Spirantho wrote:
Memory contention is very easy to code ... all for a windows emulator. Contention isn't an issue for ... ROM. But you'll need contention (or at the very least ...Weird loaders; 1) Why? 2) How? (Curiosity question)Hello again. Sorry to be asking/posting so much today, but I've just arrived here and am plumbing the depths of nearly 22 years of making cups of te…
... 32K to avoid the ULA contention issue,which would knacker up ...Weird loaders; 1) Why? 2) How? (Curiosity question)Hello again. Sorry to be asking/posting so much today, but I've just arrived here and am plumbing the depths of nearly 22 years of making cups of te…
... 32K to avoid the ULA contention issue,which would knacker up ... numbers take account of the contention on 'port #fe'? If not ...ANNOUNCE: BASin Release 12 ready for downloadWell, after a rather large break, BASin's latest incarnation is ready for public use. Probably. BASin is a Sinclair Spectrum development environme…
... that, SPIN offers accurate memory contention which BASin does not - so ..."Sinclair Zx Spectrum: Absolutely Better Than Commodore 64"Did you ever read this? [url="http://www.alfonsomartone.itb.it/fztsmo.html"]http://www.alfonsomartone.itb.it/fztsmo.html[/url]
... CPC does have more memory contention though which slows it down ..."Sinclair Zx Spectrum: Absolutely Better Than Commodore 64"Did you ever read this? [url="http://www.alfonsomartone.itb.it/fztsmo.html"]http://www.alfonsomartone.itb.it/fztsmo.html[/url]
... CPC does have more memory contention though which slows it down ...Long lost gamesWho remembers a game from codemasters called "rock star ate my hamster"? this game is so bad its good! Can anyone get to number 1 and get the platinu…
Router shouldn't affect speed. The only bottleneck is usually your ISP.
Can you imagine half meg at 50:1 contention and the other 49 dweebs all downloading mpeg and mp3's nightmare.
I love my cable connection :)Abu Simbel Profanation &emulatorsI recently tried game from subject in Spin, EmuZWin and some other newer emulators and noticed sad fact that it works not, better said controls work …
... be the main point of contention, and, contrary to certain other ...Spectrum emulator tests on WEB?I searched little with google, but didn't find it. Can I get some URL?
... .
SPIN's memory contention is apparently "not good" when ...Spectrum emulator tests on WEB?I searched little with google, but didn't find it. Can I get some URL?
Interesting findings D. perhaps piters would like to comment on the 'bad memory contention' issue.Spectrum emulator tests on WEB?I searched little with google, but didn't find it. Can I get some URL?
... /> The coloured bars are memory contention.
I might also ...Spectrum emulator tests on WEB?I searched little with google, but didn't find it. Can I get some URL?
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SPIN's memory contention is apparently "not good" when ...BlueyonderI have just got an email from Blueyonder saying that my broadband speed is going up to 4 meg from 1 meg soon, I pay ?25.00 a month is that a good pri…
I love my blueyonder broadband. I currently have 1MB which regularly gives me 128K downloads.
I believe cable also gives you 1:1 contention unlike ADSL which is 50:1 or 20:1 if you pay extra.New GP32 coming out....The spec looks excellent and should run MAME, SNES and hopefully GBA full speed. Whats also exciting is the TV out connection !.... The ultimate ho…
... emulation - if you want accurate contention you're not going to ...Turbo baud rates, pulses length for +50%(2250)?I need the 0-bit and 1-bit pulse lengths for 2250 baud rate. Also, a table with pulse lengths for upto +100% (and beyond) would be very useful to me…
... length themselves are correct (modulo contention delays which AFAIK nobody's ...Help with loading knowledgeHi. I'm new to spectrum coding and have a few questions to do with how the spectrum loads programs. You press LOAD "" and play the tape, and it find…
... .com/cssfaq/reference/48kreference.htm#Contention"]http://www.sinclairfaq.com/cssfaq ... /reference/48kreference.htm#Contention[/url]
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