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The "best" Z80?What's the best Z80 for Spectrums? I know there are differences between brands (Nec, Zilog, Thomson) and technologies (CMOS, NMOS), so what Z80 woul…
[QUOTE=velesoft;691696]Yes, Zilog Z80 NMOS CPU have often problem with M1 line. But as I know Zilog Z80 CMOS CPU don't have bad M1[/QUOTE]
Is there any way to distinguish among NMOS and CMOS Z80? -
MultifaceOneCrack-Killer.tzxhi all just wondering if anyone has ever tried to use this tool? i have had a look at it and think i understand wot it's ment to do but the code loo…
Wasn't quite right, don't know if you noticed but the 2nd code block took the name of the original m1 file rather than the entered name. Updated fix at the link above. -
The "best" Z80?What's the best Z80 for Spectrums? I know there are differences between brands (Nec, Zilog, Thomson) and technologies (CMOS, NMOS), so what Z80 woul…
... .
As for the /M1 problem. Only some Zilog NMOS ... -
Rocky Gush Floppy Drive InterfaceI have a Rocky Gush Floppy Drive Interface which I would like to post the details under the Hardware section of the website. What is correct procedur…
... to consider the Z80's 'M1 cycle active' line (for those ... 't know, the Z80's M1 cycle is the first cycle ... .e. at a point where M1 will not be active. So ... -
Setting up an IDE HDD on the +3e helpHello, Just installed a HDD in my +3e (ROM ver. 1.11). When turning on it takes a few seconds longer but then shows 2 IDE (available) as well as 1 fl…
... , in the original schematics, the M1 line goes to pin 11 ... on the updated schematics the M1 line goes to pin 10 ... -
2013 projects: new PlusD, DivIDE and MultifaceI have written about this before, but as I want to let these project be influenced by your opinions, I thought to create a separate topic about it. …
... alternative Basic ROMs. With faulty M1 line you can do nothing ... -
+2 Grey NMI problemMy shonky old +2 has always worked very well until recently, ive found that hitting the nmi button on my multiface will either do one of three things…
... Z80 inside (and an external M1 line). A faulty Z80 may ... -
+2 Grey NMI problemMy shonky old +2 has always worked very well until recently, ive found that hitting the nmi button on my multiface will either do one of three things…
Is there a way, without an oscilloscope, to test the M1 line on the Z80? -
+2 Grey NMI problemMy shonky old +2 has always worked very well until recently, ive found that hitting the nmi button on my multiface will either do one of three things…
... an oscilloscope, to test the M1 line on the Z80?[/QUOTE ... you the state of the M1 line via a LED (keep ... -
Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... Ohm on data bus if /M1 and /IORQ signals are active ... -
Interface 1 bisOk, well the postmans just been and brought with him my new arrival, the Interface 1 bis. So as promised I thought I'd share some initial usage exper…
... Ohm on data bus if /M1 and /IORQ signals are active ... -
ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... 1 does not need the M1 line (in case that is ... -
ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... . I thought it DID need M1 when paging the shadow ROM ... -
ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
/M1 seems to be used, according ... pulled low if all of M1, A7, A11, A13 (from one ... low.
Point is, /M1 seems to be included in ... -
ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... 't think it was an /M1 line issue though...) -
Z80 compat listAfter the chat I had with a person on my facebook group about which Z80 chips work with the DivIDE device I found that there was no list at all to le…
... ) Z80's have a damaged /M1 output (either off-factory or ... users), some peripherals use the /M1 signal, so there is a ... -
ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... would need a combination of /M1, /ROMCS, /MREQ and address lines ... -
ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... check the expansion bus - yup, M1 and NMI both connect correctly ... -
Does a bad sequel/episode in a book/game/film/etc series kill the series for you?I meant to post this yesterday, but didn't get the time, but someone I was talking to said they used to love the Resident Evil series almost obsessiv…
... pointless, but I still like M1. The second Mr Bean film ... -
Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…
... cycle bus (not sure for M1 cycles, though). Either you replace ... -
Contended Memory woes...Hello All, An iccle problem I have and was hoping one of you fine WoSers could bail me out again... :) I've noticed that my emulator is running sli…
... T3+T4 of opcode fetch (M1) cycles for DRAM refresh, then ... -
Fast Z80Todays Spectrums are fast as hell and few software utilises this. Z80 in ReVerSE runs at 42 MHz, in Speccy2010 at 28 MHz, in Pentagon 2.666 and in N…
... cycle bus (not sure for M1 cycles, though). Either you replace ... -
Contended Memory woes...Hello All, An iccle problem I have and was hoping one of you fine WoSers could bail me out again... :) I've noticed that my emulator is running sli…
... T3+T4 of opcode fetch (M1) cycles for DRAM refresh, then ... -
Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
Opus and IF1 will fight for the ROM-paging, the M1 line I believe. Anyway M1 (or equal relevant line) is not available at the Opus expansion port. All Opus/IF1 combinations I have seen had a an added (soldered) double throw switch in either Opus or IF1. -
Microdrive Serial ProtocolGentlemen, I've been dreaming for a long time to develop a Microdrive emulator, where an SD card loaded with .MDR cartridge images can be accessed t…
... ROM-paging, the M1 line I believe. Anyway M1 (or equal relevant ... -
Things we all hate.Right, we couldn't agree on a video game, a TV program, or even a food we all liked. So to have one last stab at agreement, here's a thread to find o…
... near the start of the m1.. the signs will say 40 ... -
Things we all hate.Right, we couldn't agree on a video game, a TV program, or even a food we all liked. So to have one last stab at agreement, here's a thread to find o…
... near the start of the m1.. the signs will say 40 ... -
DivMMC EnJOY!Coming up... [IMG]http://benophetinternet.nl/hobby/vanmezelf/DivMMC_enjoy_first_render.jpg[/IMG]
... ? sometimes the problem is the M1 signal from z80, and as ...
