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48k Timing Tests...Here's v1 of the timing tests for the 48k Spectrum, with a little background [IMG]http://www.zxspectrum4.net/images/timing_test_v1.jpg[/IMG] [URL="…
... failed two tests (12 contended and 27 contended). It had warmed only ... -
Retro Gaming Love or Profiteering - A DiscussionI'm having a debate on a forum for a popular MAME (arcade emulator) front end (Hyperspin). I'm questioning the ethics of a site called EmuMovies.co…
... 16MBps home connection (which is contended and has only 800Kbits or ... -
Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…
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Pages 4-7 are contended in that the Z80 and ... -
Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…
... say the same banks are contended so how can that be ... -
Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…
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If (HL) is contended, two passes of the loop ... to 50 T for non-contended RAM.
A fairly ... -
Mistake in the 128K technical FAQ?[url]http://www.worldofspectrum.org/faq/reference/128kreference.htm[/url] [quote]Memory banks 1,3,5 and 7 are contended.[/quote] Really? I thought i…
Hardware is the answer... or not ?
From: [url]www.fruitcake.plus.com[/url]
The RAM banks 4, 5, 6 and 7 (the contended RAM) are formed from IC6 - IC13, whereas the RAM banks 0, 1, 2 and 3 (the uncontended RAM) are formed from IC15 - IC22. -
Games programmers playing other gamesI've always wondered what it was like for programmers of the Speccy when they played games from other companies/developers. Would they sit and analy…
... from the adverts of [I]Unreal[/I] on the Amiga and ... their really was in [I]Unreal[/I] when it got moving ... -
CPU speed measure possible?Is it possible to measure the CPU speed and shows the result on a LED display? Micky
... 't run the code in contended memory, and coding a loop ... -
CPU speed measure possible?Is it possible to measure the CPU speed and shows the result on a LED display? Micky
... direct from Xtal, the other ('contended') one from ULA. We don ... -
DivIDEo - streaming video on the DivIDEThis has been a bit of a personal holy grail for years and years, so I'm very pleased to announce the release of DivIDEo, my streaming video system f…
... something to do with avoiding contended port reads during INI instructions ... -
Who can fix my Flash programmer code?I have a problem with some code, it doesn't work and I don't have any idea what it's trying to do, or failing to do! The code in question is the fla…
seems being the operative word...
the tape routine is running in contended ram so breaks, but for some reason it worked in spin!
also there are bugs in the flash erase code somewhere, back to the drawing board :) -
Blimey! Buy a used console games and you might have to pay the s/w house to play it!From: [URL]http://www.videogaming247.com/2008/11/10/capps-we-really-need-to-make-strides-against-the-secondhand-market/[/URL] [COLOR=blue]"Epic…
... code from the online server. Unreal Championship 2 on the original ... -
The official 'Dorothy' discussion threadThank **** it's over after tonight! Hopefully the missus won't realise she's been missing [i]Britain's Got Bullshite[/i] all these weeks and start wa…
... few crappy minutes of fame, unreal.
I cant sing ... -
Games where you where a true masterI think the only game I could say I was a true "master" was super soccer for SNES, I finished it in the hardest level with Belgium, the worst team...…
... was almost a master at unreal tournament 99..but only in ... -
The official Pandora handheld threadHas anyone here got a Pandora yet? If so, what do you think of it? Is it as comfortable to hold and use as we're all hoping? What is the screen like …
... a million times before, but Unreal Tounament is Windows software, not ... -
emulator for standalone gamesis there an emulator capable build a standalone exe with given snapshot or tape or disc ?
... , I run something small like Unreal 0.20 #2 by SMT ... -
So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…
... ULA (both VRAM and non-contended RAM), and I'm afraid ... other way, if a non-contended RAM access is to be ... -
+2A extended memory map & ULA bug?The [URL="http://www.worldofspectrum.org/faq/reference/128kreference.htm"]128K reference page[/URL] says: [quote]The ULA bug which causes snow when I…
... mode, with RAM bank 4 (contended memory) in 0x0000-0x3FFF, and ... -
"Programming the Spectrum in Assembly" series in Micro MartI see that Shaun Bebbington is starting a series of articles in Micro Mart magazine on how to program in assembly for those who might know a little b…
... previous models, since every 8 contended states there's only one ... -
"Programming the Spectrum in Assembly" series in Micro MartI see that Shaun Bebbington is starting a series of articles in Micro Mart magazine on how to program in assembly for those who might know a little b…
... previous models, since every 8 contended states there's only one ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... LDIR opcode is running in contended memory or not;
[*] ... Source (HL) is pointing to contended memory or not;
[*] ... Destiantion (DE) is pointing to contended memory or not;
[/ ... note is that contended memory is not actually contended until the ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... note is that contended memory is not actually contended until the ULA ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... time required per byte, including contended RAM overheads but excluding any ... external loops, is:
[code]Contended: LDIR LDI
Only ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
... ]) describes the detailed timings of contended RAM. It gives timings for ... residing in, or reading/writing, contended RAM.[/quote]
You ... -
LDIR timings in contended RAM?The 48K Spectrum technical reference page ([URL="http://www.worldofspectrum.org/faq/reference/48kreference.htm"]here[/URL]) describes the detailed ti…
And copying from and to contended memory is a real time- ... . Buffer the screen in non-contended memory and always copy from ... -
Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... ROM). The problem is that contended memory access isn't just ... square-wave tone channels) in contended memory. It sounds pretty funny ... -
Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... ROM). The problem is that contended memory access isn't just ... -
Beepola v1.01A new version of Beepoa, v1.01, is now available for download from:- [URL]http://freestuff.grok.co.uk/beepola/Beepola_v1.01.00.zip[/URL] (650KiB) …
... square-wave tone channels) in contended memory. It sounds pretty funny ... -
102 colours or 120 colours on ZX?OK then, we're talkin'bout GigaScreen. Two 15-colours pictures set together. Flickering. Interlace thingie. We were counting today and theoretical…
... . Include in the emulator mode Unreal Noflic and throw screenshot click ...
