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for a stupid: what?s NMI?erhm, yes, I?m not familiar with it... :rolleyes: I know the function of a hardware ?snapshot? button from Didaktik M/Kompakt, but I?m not familiar…
... == 0x0066 and if so asserting /ROMCS to page their own ROM ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... model. There is a signal /ROMCS on the rear edge connector ... -
The 128 plus 2 wasn't very goodHaving looked at the review in issue 33 of Crash of the Spectrum Plus 2, it strikes me as a bit odd, as if Simon Goodwin had to like it. I remember r…
... model. There is a signal /ROMCS on the rear edge connector ... -
Replacement ROMsSo, I've replaced a couple ROMs in my +3 to be a +3e. I used a couple of 27c256's, which has worked a treat. So if I wanted to replace the ROMs in …
... = low (that's ULA's /ROMCS ).
But when use ... to
/OE, and lead /ROMCS to /CS of EPROM.
ResiDOS v1.92 and +3e ROMs v1.30 releasedI've just updated ResiDOS to v1.92, and the +3e ROMs to v1.30. Full details can be found at: [URL="http://www.worldofspectrum.org/zxplus3e/"]http://…
... . I think the +3 ignores ROMCS signals if a RAM-only ...+3 hardware without a fixer boardJust thinking about plugging random hardware into a +3 (from something mentioned on another thread), and I wondered... I know some hardware won't wor…
... because the +3 has two ROMCS lines, neither of which is ... same place as the "standard" ROMCS line. This is why interfaces ...Currah MicroSource emulationIt appears to be impossible to emualte the MicroSource in software on the ZX Spectrum SE as hardware polling is required. The following patch is not …
... select line and disable the -ROMCS line so the BASIC ROM ...toasted soeccysHello, ive jsut bought a pair of speccys on ebay (one 16k issue 2 & a prob 48k issue 3) unfortunaly the genius who sold them tried to see if the wor…
... 2 did it (IIRC, nailing /ROMCS high so the Spectrum's ...Anybody fancy coding this?blah de blah de blah Please ignore, poting error.
... the edge connector, and nails ROMCS high just like ZX Interface ...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…
Lines ROMCS, IORQGE ( and maybe some others ) ... /> You know you can force ROMCS high thus disabling the BASIC ...It's fitting...... that in the very month that the 25th anniversary of the Speccy falls on, I'm just finishing up making my first ever Spectrum peripheral. It's a …
... ;CL R Q|-----o To ROMCS
Gnd o--//__/ | LS74 ...Spectrum 48K ROMHi Can anybody help I have an Issue 6a Circuit Board which has a faulty ROM Chip. Is it possible to program a ROM Chip with the 48K ROM and fit it as…
... 3 lines for controlling them: /ROMCS, /RD and /MEMRQ .
Need ... , and connect it to OE. ROMCS connect to CE of EPROM ... need U2:B, just connect ROMCS directly to CE of EPROM ...Testing RAM Chips After RemovalHi I am going to use Winstons Hot Air Gun method of removing the RAM chips from a 4S circuit board. I wish to check the RAM chips, I have a Logic Pr…
... /> - A P-channel MOSFET for /ROMCS (can be omitted if you ...+2b not working with interface1i was trying to transfer some of my programs from my microdrive carts onto tapes last night, but found both my 48k and my toast rack 128K have decide…
... its just IORQ_ULA(IORQGE) and ROMCS that are missing+2b not working with interface1i was trying to transfer some of my programs from my microdrive carts onto tapes last night, but found both my 48k and my toast rack 128K have decide…
... .[/QUOTE]
Ive done ROMCS to disabe both roms and ...InterfaceHi I'm building a spectrum emulator. I've tried to build it as modular as possible, for example I have a zx class that have input and output devices…
... Spectrum exposes a line called ROMCS at the edge connector. Every ...TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …
...
pin 14 - connects to ROMCS of the cart slot and ...TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …
[QUOTE=odious;190311]
pin 14 - connects to ROMCS of the cart slot and pin 1 and 28 of the rom/eprom and pin[/QUOTE]
Pin 14 is VCC ...TC2068 emulator cart - problemHi, Sorry for posting timex related stuff on a spectrum forum. So, this cart (spectrum emulator) can only adress 16K. I can load small games but i …
...
pin 14 - connects to ROMCS of the cart slot and ...Another TS Emu CartLooks like the one I have. [url]http://cgi.ebay.com/TC2068-Cartdrige-48K-emulator-for-Timex-Computer-2068_W0QQitemZ250133271074QQihZ015QQcategoryZ124…
... replaced the TS /RFSH with /ROMCS. Why they made these changes ...Eprom blowerdoes anyone know a site with plans for an eprom programmer project that'll blow 27C256s. I attempted to build one called Kisseprom, but the software …
... the /RD (from Z80) and /ROMCS (from ULA) signals used in ...Multiple ROMsI'm mulling over the idea of a bit of hardware with a ROM in it, which has some commands that can be called by BASIC (like the old wafadrive star com…
... , the Interface 1 checks the ROMCS line on the connector at ... your hardware to respect the ROMCS line, it could work in ...Problem with assembled divIDE kits.Hello, I bought two divIDE kits from [url]www.divide.cz[/url] It took 7 weeks for them to arrive. I assembled the two kits, but unfortunately neith…
... difference is (from memory, the /ROMCS line is different, which will ...Problem with assembled divIDE kits.Hello, I bought two divIDE kits from [url]www.divide.cz[/url] It took 7 weeks for them to arrive. I assembled the two kits, but unfortunately neith…
... jumper which deals with the ROMCS signal. If this jumper is ...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…
... check the state of ROMCS before nailing the signal ... first device to nail ROMCS. The other device just ... checking and then hold ROMCS high, so the two ... daisy chain, that is, ROMCS passes through some logic ... way of handling the ROMCS line so that two peripherals ...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…
... fully understand how things like ROMCS work either).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?
... ? The thought occurs that if ROMCS is active on power-up ...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?
... be returning 0x00, with the /ROMCS line affected in the same ...Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…
... position. This will verify that ROMCS is being held high and ...Spectrum Diagnostics Board - 25th Anniversary projectWell, I said I'd try and get something online about this by today, and I have indeed done so. This web page still needs finishing off (in particular,…
... P-channel fet on the ROMCS line it should at the ... transistors are only used for ROMCS and to invert one of ...
