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Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?
... its stuff and an NMI line, then it's almost certain ... if the IORQ line is used by the device ... magnitude comparators) plus the M1 and MREQ line. M1 active + MREQ active + the ... -
Rom dumping a Mirage MicrodriverI need to dump the rom of my Mirage Microdriver for Zub and don't know what to do...any help?
... its stuff and an NMI line, then it's almost certain ... if the IORQ line is used by the device ... magnitude comparators) plus the M1 and MREQ line. M1 active + MREQ active + the ... returning 0x00, with the /ROMCS line affected in the same way ... -
Faulty M1 LineHello, I've got a new DivIDE but it's not working with my Spectrum 48k+. I've got a sneaking suspicion that it's a faulty M1 line. Is there any way …
... that it's a faulty M1 line. Is there any way of ... -
MISSING M1 LINE ON +48????I was posting questions about my DIVMMC enjoy not working on one of my +48`s and have now got round to testing if its cpu related.Trouble is the one …
... a little about the faulty m1 line and i think i understand ... -
Of course, when the M1 line of the Z80 CPU is failing, the Z80 CPU must be replaced![quote]Of course, when the M1 line of the Z80 CPU is failing, the Z80 CPU must be replaced![/quote] Err, why? If you are trying to use an interfa…
[quote]Of course, when the M1 line of the Z80 CPU is ... Z80 MPU with a working /M1 line, yes of course.
M1 line. So it’s irrelevant if ... -
Faulty M1 linesI'm sure this has been discussed before, but using the forum search for the word 'M1' pulled back no hits, which surprised the hell out of me. Anywa…
... forum search for the word 'M1' pulled back no hits, ... which Z80s had the faulty M1 lines, and what was ... stick my scope on the M1 line this weekend, but given ... looking for timing issues with M1 (for the '138 to ... exactly is the IORQGE line for on the edge connector ... -
Anatomy of a bad M1No, not the motorway (although at times the tarmac M1 goes about as well as this one...) But the bad M1 problem that seems to occur most with issue …
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But the bad M1 problem that seems to occur ... probe connected directly to the M1 line on the Z80. The ... 0v than 5v (the M1 line is active low, so ... this reason the RESET line from the Spectrum is ... ://photo.alioth.net/Scope/M1-with-spectranet.png[/img]< ... -
Issue 4S bad M1Never ever seen a 4S with a bad M1 line before today [url=http://postimg.org/image/o2yrigdb1/][img]http://s14.postimg.org/o2yrigdb1/IMG_1291.jpg[/img…
Never ever seen a 4S with a bad M1 line before today
[url=http://postimg.org/image/o2yrigdb1/][img]http://s14.postimg.org/o2yrigdb1/IMG_1291.jpg[/img][/url]
But it is! -
Faulty M1 or no?Hi all, OK, so I've got an issue 4B which was pretty much untouched and appears to work fine (starts up OK, loads games, 23732 and 23733 both retu…
... I thought, "aha! a dodgy M1 line", so I removed the Z80 ... -
line routineWondered if anyone can help me out. I have been programming a 3d graphics library for the spectrum, in Machine code. The line routine that I have i…
... Machine code.
The line routine that I have implemented ... out there have a fast line routine, plese email me.
M1 LOADING between TZXs ?Splat! (Alternative) from TZX Vault is a M1 LOADING snapshot file. Is this a mistake, or is there some reason for this ? Best wishes, Cristi
Splat! (Alternative) from TZX Vault is a M1 LOADING snapshot file.
Is this a mistake, or is there some reason for this ?
Best wishes,
CristiPrinting at line 22...The last legal line in BASIC is line 21. Using Print #0 allows you to print on line 23, but how does one get access to line 22? Anyone?
The last legal line in BASIC is line 21. Using Print #0 allows you to print on line 23, but how does one get access to line 22? Anyone?InterruptsA small piece intended for the FAQ. Comments, corrections, additions welcome. Notably: * How long does the 48K ULA hold /INT low? * What happens i…
... . The time the /INT line is held low can be ... reach 0x0038:
* M1: 7 tstates: acknowledge the interrupt ... interrupt routine:
* M1: 7 tstates: acknowledge interrupt and ... 19 cycles:
* M1: 6 tstates: acknowledge interrupt.
How can I scroll a line of text and wrap perfectlyI know this is easy for most of you but for some reason I am messing it up. In Assembly Language I want to do the following: I have 1 line of text …
... :
I have 1 line of text (8 Pixel Rows ... want to scroll the whole line left one pixel so that ...Looking for software line-up from two companies...Hello all, I'm one of the maintainers of the Atarimania site at [url="http://www.atarimania.com..."]http://www.atarimania.com...[/url] We have a sim…
... towards the Atari 8-bit line of computers (400/800/XL ... like is to have the line-up of titles that were ...Thomson Twins Adventure On-line Play #1??Why is this number 1 in the on-line played games rankings?? Number 1 by quite a margin too!! :o Pos / Played / Title 1. / 245 / Thompson Tw…
emulators that support command line parametersDoes anyone know of any emulator that supports loading .bin files from the command line? What is the format for the parameters? The command line woul…
Does anyone know of any emulator that supports loading .bin files from the command line?
What is the format for the parameters?
The command line would need to except both the file and the load address.Off-lineI've been off line for a while (since late November, new baby, moving house, Christmas) so what have I missed
I've been off line for a while (since late November, new baby, moving house, Christmas)
so what have I missedDoes spin support command line optionsDoes Spin support loading .tap or .sna files via a command line parameter ? When I tried I got a very strange dialog.
Does Spin support loading .tap or .sna files via a command line parameter ? When I tried I got a very strange dialog.3d line drawinganybody know of any tutorials or got any examples of 3d line drawing / rotation ?l
anybody know of any tutorials or got any examples of 3d line drawing / rotation ?lTIPP31 transistor questionYesterday I had the time to try and repair a 4S issue 48k spectrum I had. First of all I replaced all the electrolytic capacitors. The tr4 transistor…
... /> Everything is working fine, the M1 line is OK (multiface128 is working ...A vexatious questionThis is kind of a follow-up to a question about RST #8 and hardware that I wrote in the development forum a while ago. To summarize that: certain ha…
... hits 0x0008 (i.e. an M1 cycle with 0x0008 on the ... ' way of handling the ROMCS line so that two peripherals with ...line editing in emulatorhi, it's been a very very long time since i messed around in basic on the speccy.. wrote a couple of games back then on the original machine.. and w…
... i can remember, editing a line was done by pressing shift ...It's a trap!So I got a CPLD (not the eventual one I want to use for the ethernet project - rather, one I actually have here and now, an XC9536 in a PLCC44). And…
... ". That is, if I see M1 active and an address of ... simple job of interpreting the line of BASIC at CH_ADD. As ...Faulty Spectrum (help requested)I have an issue 6a specci. It's Z80 has the fault m1 line problem (Multiface 128 does not work). So I decided to put in a new Z80 but unfortunately i…
... 's Z80 has the fault m1 line problem (Multiface 128 does not ... there's no vertical red line pattern like upon normal startup ...DivIDE+ and 128K HeatsinkI got my DivIDE+ yesterday and i tried it on a 48K+ at first, it worked marvelously on it, no problems at all. Today i desided to try it on my 128 H…
... would say "its a faulty M1 line of the Z80" but the ... i had with a faulty M1 line a year ago.
So ... chance one of them having M1 faulty line.
The same Z80s ...CRASH 78 & Mel Croucher's Computer Fun LineSomeone contacted me and asked how they could get hold of Mel Croucher's Computer Fun Line. This was an audio item on the cover tape of CRASH 78, see…
... Mel Croucher's Computer Fun Line. This was an audio item ... Mel Croucher's Computer Fun Line be added to the Infoseek ...Faulty M1 pin on a Z80 made from SGS?It's the second time I have come across this: a Spectrum that seems to work ok, but if I attach an Interface 1 or a DivIDE to it, it behaves as is no…
... Interface 1 and DivIDE use M1 signal as input (among others ... I have looked at the M1 signal using a scope, the ... , didn't SGS implement the M1 pin on their Z80's ...Bresenham's line algorithmHelp - I really am struggling to get my head around this algorithm. I don't know why, I coped with Cordic (SIN/COS) and integer divide routines (/10 …
... the Spectrum ROM for DRAW-LINE at $24B7 is disappointingly vague ... 's distance from another (imaginary?) line.
[CODE];now draw ... the line
;Bresenham line drawing algorithm poorly implemented ...
