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22nd December 2016
OK so now that the cat has been let out of the bag on a public forum, I can mention that decapping of the chips on
My Decapping Page has re-commenced on the 6th of December 2016.
You can check my Decapping page for updates (look for green items with dates) and you can check the web site of 'CAPS0ff' (the guy doing the decapping) here.
The only question I have (and one I'm sure many others also have) is how many chips were recovered and which ones (if any) were lost? Update: All known lost chips marked on my Decapping Status Page

Big thanks to 'CAPS0ff' and I hope there are many more successful decaps and dumps in the future.


8th November 2016
When I dumped Crazy Dou Di Zhu II (Sealy 2006), at about the same time I also dumped an almost identical board for a game called Meng Hong Lou. Luca added it to MAME recently. It has similar problems to the other game due to protection.
Here's a couple of screen shots....
Meng Hong Lou Meng Hong Lou


2nd November 2016
With a bit of tweaking of the tool data and removal of the finishing pass (only roughing operations work) it will actually complete and the G-Code is correct!
WOW!
Here's a quick run through of a demo I created..... (note it takes about 30 seconds to load the floppy)




Here is a slightly more complex example that also works but the tool crashes through the part after roughing the concave section ;-)
So there are still some emulation issues even though it works. Hopefully all of those problems go away when the FPU emulation is fixed.
I forgot to add the floppy sounds in the first video so this 2nd video has the floppy loading sounds :-)




1st November 2016
Some more work has been done on the Fanuc System P Model G driver and now it mostly works. Unfortunately the previously mentioned buggy MAME FPU emulation causes some issues and the more complex example shown in pic5 gets stuck when creating the machining paths and won't continue past a certain point. I created a simpler example and falsely adjusted some of the tool data and basically just forced it to work. I have 30 years experience with FAPT and know how to make it do what I want even if it is physically impossible ;-)
The software is clearly having trouble calculating things correctly, but now it creates G-Code which is shown in the last pic :-)
Here are a few screens of the Color PG in action (shown without the clickable artwork for clarity).
Notice (in the last pic) the roughing (green lines) works but the finishing pass (yellow) goes off into space and is generating the same coordinates over and over with E+07 at the end in an infinite loop hahaha!
Pretty amazing that it works though. I think back in 1982 the System P Model G was something like $20k! Most of you probably don't realize, but that amount was easily made back in the first week of using it ;-P
Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G


27th October 2016
Over the last couple of weeks I've been working with a very talented guy (outside of the MAME Team) on the Fanuc System P Model G emulation. He had previously, and with some success, emulated (privately) the Fanuc System 6A CNC controller (which is not in MAME). This was a tremendous feat of reverse-engineering because the Fanuc CNC controllers use a lot of custom ICs and very locked-up specialized technology. He kindly helped out with the PG emulation in MAME and it is now mostly working. Unfortunately there are issues caused by missing/incomplete x87 FPU emulation which appears to be completely unused in MAME. The PG uses an 8087 and MAME has no examples of it's use since it's an optional chip in all PCs and is not actually used in any driver. It may get fixed eventually, or this very talented new guy may figure it out along with the remaining issues.
Here are a few screens of the emulation in action using artwork I created with pics taken of my real PG System....
Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G
Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G Fanuc System P Model G

There are many floppy disks and manuals that were originally made to go with this yellow box of tricks. I happen to have a few of them here and they have been archived for use with the emulation.....
Fanuc System P Model G Fanuc System P Model G
We need help to locate any of the remaining floppy softwares that may be out there in some dark engineering workshop or sitting on a shelf in an office somewhere, unused for the last 25 years.
If you have worked in Engineering in a CNC-related job and have access to any of these Fanuc System P floppy disks or know someone who does, please contact me so we can get them dumped and archived for future use.

I have also been working on a battery-damaged Amiga 3000 that a friend asked me to look at. This is possibly the worst battery damage I have seen so far. After stripping, cleaning, re-assembling with new parts/new sockets and patching dozens of tracks (most are not visible because they are under ICs and patched directly on the board using 0.15mm wire) it was mostly working but not stable. Investigation revealed one of the legs on the Agnus chip has become very weak and was almost falling off. This was caused by the previous owner who had tried to do some butcher repairs and broke the corner off the Agnus socket in the process (seen in the first picture), and also damaged the legs on the Agnus chip on that same corner. Initially I bent them back into place but once chip legs are bent they weaken and eventually break off. When I noticed the bad connection on one pin I removed the Agnus from the socket and casually touched that pin with a finger and it fell off! So I had to grind away the plastic to get to the leg and solder a wire in place. That appeared to fix it for a while but it still has some issues. Let this be a lesson to all of you Amiga fans out there.... if you own an Amiga and you have not touched it for years, go find it now, open it up and remove the internal barrel battery before it's too late!
Here's a few pics of the repair....
Repairing a battery-damaged Amiga 3000 Repairing a battery-damaged Amiga 3000 Repairing a battery-damaged Amiga 3000 Repairing a battery-damaged Amiga 3000 Repairing a battery-damaged Amiga 3000 Repairing a battery-damaged Amiga 3000 Repairing a battery-damaged Amiga 3000


25th October 2016
Recently I completed the dump of Crazy Dou Di Zhu II (Sealy 2006) and Luca has done some work on it in MAME.
It's now starting to do something....
Crazy Dou Di Zhu II

and for comparison, here's a pic of the title screen from the PCB....
Crazy Dou Di Zhu II


10th October 2016
Regarding the Quiz Punch news below, it looks like my MCU dump was ok. Luca did his usual magic and it's partly working in MAME now.
Quiz Punch Quiz Punch


24th September 2016
I'm currently in the middle of re-organising all the PCBs and stacking them on a metal shelf rack so things can be found quickly. Here's a quick Work In Progress pic..... I'm almost finished :-)
The Items For Sale list has also been updated, including adding a few boards that were previously at unknown locations or unlisted.
Work-In-
Progress Guru PCBs stacked on a rack

While going through the boxes I found a couple of boards that were not dumped so I dumped them. One was a Poker/Casino game by 'Status Games' and the other was by 'Kramer Mfg' and was dumped but the existing dump is incomplete and missing the color PROM.
Status Games Poker/Casino Kramer Mfg PCB

I also checked one PCB that was not labelled, and it identified as 'Quiz Punch'.
Quiz Punch PCB Quiz Punch PCB Quiz Punch PCB Quiz Punch PCB Quiz Punch PCB Quiz Punch PCB

I dumped it years ago but checking in MAME I saw that there were missing ROMs. That's because the game has an epoxy block on it so I decided to open it. It was actually really easy to open with just a flat bladed screwdriver. After cracking the sides off the plastic case, the inside was revealed and the PCB inside it was just glued on. I put the screwdriver between one of the chips and the top of the plastic epoxy block cover, twisted the screwdriver and the whole thing just popped off in one piece :-D
The pics show the parts inside. A Z80B at 4MHz, 4 logic chips, a 68705P5 microcontroller and an unknown DIP8 chip.
Notice the writing from the Z80 has stuck to the glue inside the epoxy block cover haha!
Quiz Punch PCB Quiz Punch PCB Quiz Punch PCB

I removed the 68705 and read it and something came out so maybe the dump is OK. Not sure, as subsequent reads gave nothing.
Now onto the DIP8 chip.... I pulled it off and on the bottom side of the chip it has the part number and pin-1 notch! So this chip was upside-down. In this configuration the chip is non-standard and can't be read as-is. I bent the legs out straight and soldered it into a larger socket (also fixing the broken leg at the same time) then just read it as a 93C46 EEPROM. The dump was good!
Quiz Punch PCB Quiz Punch PCB


4th September 2016
A few months ago I was given a Merit Megatouch Force 2006.5 unit by a local friend. It was told it wasn't working so it sat outside in my garage for several months. I decided to have a look at it yesterday. The unit would not boot up. The first issue was a dead motherboard battery. After changing it for a new one and resetting the BIOS defaults and tweaking them, it booted up but gave some error about the motherboard model not being correct. I went back into the BIOS and set the factory defaults and then it got past that error and booted into the game. The touchscreen didn't work. I went to the calibration setting screen and tried to recalibrate it but the screen did not register presses. Inside there was a rats nest of hacky wiring and several wires were chopped off and tied up. Other wires were dangling everywhere. A small AMP board was just sitting on the frame and had some insulation tape wrapped around it to stop it arcing to the metal. Looks like some rough operator really went to town on this unit and made a real mess of it. I wouldn't trust that guy to pull out weeds correctly!
I pulled it apart completely and then I could see what was supposed to be connected to what and while I had it apart I documented the hardware. The touchscreen issue was caused by some dangling wires that had caught on something and pulled out a connector on the touchscreen controller breaking a solder connection on it. After re-soldering it, cleaning it out, tidying up the wires and re-joining the chopped ones (basically putting everything back to normal as it should be) I went back into the calibration setting screen, did the screen calibration and then it kind of worked but only on some parts of the screen and it only registered presses occasionally. That problem was solved by re-doing the calibration again, but this time when pressing the opposite corners as instructed, I held my finger there for 2 seconds. That is actually documented in the manual ;-)
After that it all worked properly :-D
Having this all working now, I decided to do some research about these units as this was the first time I had seen a Megatouch. The info out there says this has a security module on the I/O board. The I/O board is there but there's no security module!! I have a couple of pics below showing a comparison of the I/O boards. Looking closer, it turns out this box is *nothing* like a genuine Megatouch Force unit. The whole thing appears to be a copy. I have some suspicions about 'who' did this, but I won't mention the company here. Let's just say they are located on the East side of Australia in Melbourne and they were fined about $500K a few years ago for pirating some other stuff (by ICE, if I recall correctly), so no doubt it's the same guy up to his old tricks again.
Anyway, the security has been hacked out so it works as-is without the special security dongle. That's a bonus for us because that means it should make it easier to add to MAME because essentially it's just a PC running Linux. The extra PLCC chip on the I/O board may be a problem but maybe not. I suppose we will find out when it's added to MAME.
Here's some pics of the unit....
bootleg Merit Megatouch Force 2006.5 bootleg Merit Megatouch Force 2006.5 bootleg Merit Megatouch Force 2006.5 bootleg Merit Megatouch Force 2006.5 bootleg Merit Megatouch Force 2006.5 bootleg Merit Megatouch Force 2006.5 bootleg Merit Megatouch Force 2006.5
bootleg Merit Megatouch Force 2006.5 set-up menu screen bootleg Merit Megatouch Force hardware info screen Comparison of I/O boards

I will probably sell this eventually, I have very little interest in Megatouch games. If you are interested to buy the whole unit complete and working, contact me.


21st August 2016
Luca has been working on some of the latest arrivals shown below. Here's the first one.....
It's a rare Namco game called "Star Audition"
Namco's Star Audition (C) Namco 1997 Namco's Star Audition (C) Namco 1997 Namco's Star Audition (C) Namco 1997 Namco's Star Audition (C) Namco 1997 Namco's Star Audition (C) Namco 1997 Namco's Star Audition (C) Namco 1997 Namco's Star Audition (C) Namco 1997


15th July 2016
THE mother-load arrived.
THE mother-load arrivals 15th July 2016 THE mother-load arrivals 15th July 2016 THE mother-load arrivals 15th July 2016
Note these are all original PCBs and none are currently dumped.
All items will eventually be listed on my Items For Sale page.

p.s. Hi Micko
p.s. Bye Micko


19th June 2016
Today I received a rare game called 'Number Crash'. The game now works in MAME :-)
I redumped 2 bad dumps and fixed all of the inputs and dip switches. Seems the MAME guys were too lazy to do it and it was pretty easy... the apathy has definitely set in as MAME slowly dies. Anyway, after fixing all of that it's now playable.
Thanks to Kuro-san for the PCB donation
Number Crash Number Crash


3rd June 2016
This Konami System 573 3 player Hyper Bishi Bashi Champ repair job arrived the other day. It turned out to be an undumped Korean KAA version so I dumped it and it was added to MAME today.
Hyper Bishi Bashi Champ (Korean version KAA) Hyper Bishi Bashi Champ (Korean version KAA) Hyper Bishi Bashi Champ (Korean version KAA) Hyper Bishi Bashi Champ (Korean version KAA) Hyper Bishi Bashi Champ (Korean version KAA)


14th May 2016 (6)
I decided to clean out the Tekken Tag Tournament 2 Unlimited box today so here's a few pics of the inside of Namco System 369 and a few pics of the game screens. Basically System 369 is the same as System 357 but is using a slim PS3 mainboard and 2.5" HDD. The cooling method has been re-designed but unfortunately they are still unreliable because it's still just a PS3. The game should have been called 'Limited', not 'Unlimited'. The system is hobbled and plays only 1000 games if not connected to the Namco network then requires payment to Namco to keep it working. Worse, that service is no longer available so when you get to your credit limit you'll have to get one of the cracked HDD's with that limit removed if you want to keep using it.
Fortunately I have one of those too ;-)
Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited Tekken Tag Tournament 2 Unlimited


12th May 2016 (5)
Today I received a couple more dead/suicided CPS III carts to do the Darksoft mod on. One of them looks very dodgy. I dumped the ROM and it's unknown so it may be a bootleg conversion of some kind.
The first thing I noticed was the label is not the same color as an original and appears to have been printed on a color laser printer. The original is on the right, copy on the left....
Capcom Play System III security cart. Genuine cart on the right.
Here's a zoom of the copied label.... you can see horizontal lines through the image. Hmmmmmm.....
Capcom Play System III security cart. Click the big X to view full size.
The second thing I noticed was the screws holding the cart together were covered in hot-melt glue, which of course is not on genuine carts. Note the photo below was taken after the conversion was done and I've removed the glue but you can still see traces of it, including some on top of the sticker.
The third thing I noticed is there's one of those 'Warranty Void If Removed' stickers on the side which is not present on genuine CPS III carts and it's identical to the sticker covering the screws holes on Capcom CPS II A/B boards. So the hackers put a genuine Capcom CPS II security sticker on the CPS III cart to make it look genuine hahaha!!!
Capcom Play System III security cart with fake CPS2 security sticker.
Note the label on the back of the cart is also a copy. All these imperfections point to a bootleg conversion. Either way this cart was not dumped so now we have another alternative ROM for one of the CPS III games :-)


29th April 2016 (4)
I noticed a few days ago that a couple of ROMs from the Silent Scope 2 network PCB were recently flagged as bad and therefore need to be redumped.
Guess what I just got hold of ;-)
Konami Hornet GQ931 Link PCB


26th April 2016
A lot of people have inquired recently about whether I do repairs. The answer is yes.
As an example, I've just finished a huge repair job.... lots and lots of Sega Model 2 Daytona USA sound PCBs. These took around 2 months to fix, working on them now and then as time permitted, but now every one of them is working perfectly. One of them was covered in some kind of sandy or saw-dust crap and looked like it had been under water. Another was covered in half-dry sticky Coke for about 10 years and was deemed scrap back then. Many were rusted beyond the grasp of mere mortal repair people. After some Guru-magic they all look perfect and are now all working and rock-solid and should last many years :-D
Many Model 2 Daytona USA Sound PCBs. All repaired and working :-)

I also have several of these Daytona USA sound PCBs for sale.
If you have any PCBs you need repaired, contact me.


21st April 2016 (3)
Another repair job arrived today. This time we have a couple of Capcom CPS III carts that are in need of a nice Darksoft BIOS modification because they suicided.
Here's a few pics of the repair job. If you have any Capcom CPS III carts that have suicided, or you just want to be able to play any of the CPS III games and you would like to have the cart(s) converted, contact me for more info.
Original untouched Capcom CPS III security carts Original untouched CPS III security carts Original untouched Capcom CPS III security carts Capcom CPS III security cart with BIOS ROM removed and PCB cleaned up Close-up of BIOS removed
Capcom CPS III security cart with BIOS replaced with Darksoft mod Close-up of replaced BIOS Long wait while re-programming the SIMMs :-( Working again with all CPS III games choosable :-) Working again with all CPS III games choosable :-)
Working again with all CPS III games choosable :-) Working again with all CPS III games choosable :-)

Note, I have a number of CPS3 carts for sale, both cased and uncased. All of them are modified with the Darksoft CPS3 multi-game BIOS and all work fine without the battery so should last almost forever :-)
While converting these, I dumped the ROM in each cart and one of them was not in MAME, so I found an undumped version :-)
Many CPS3 carts, all modified to work without a battery :-)

If you have any CPS3 carts you need repaired/ressurected, contact me.


10th April 2016
I've been playing with the CPC6128 emulation in MAME again and by pure luck I figured out how to run ROMs that are plugged in via the ROM Expansion so I'll let everyone know here, since there doesn't seem to be any info that I could find about it or anyone who knows.... at least nothing I could find in my limited searches.
Here's how it went down....
After much research about the CPC6128 over a couple of days and finding nothing, I decided to re-check what I already knew as a start.
On the CPCWiki it says how to load the ROMs but nothing about running them. Ok, so let's get it loaded.....
mame cpc6128 -exp rom -rom1 roms\cpc\protext.rom
This starts the CPC6128 emulation and configures the CPC with the expansion 'ROM' slot device. The ROM slot device has 8 slots for ROMs. It then loads ROM1 into that slot. In my case the ROM I want to load is called 'PROTEXT.ROM'. Using the command line above this is the result....
Amstrad CPC6128 running Protext Word Processor
So far so good, but no obvious way to 'run' it????
At least not for a Commodore boy like me. I'm sure all you Amstrad guys are saying 'WTF it's EASY!!' ;-)
So during my research I came across a manual for a DIY ROM Expansion board by Maplin.
I got the manual and it gives some info about testing the board and says to type |HELP to get the menu. The Maplin board seems to be using some kind of test ROM, but of course with my ROM that didn't work either. My ROM is called 'PROTEXT.ROM' so just off the top of my head I decided to type |PROTEXT and this was the result....
Amstrad CPC6128 running Protext Word Processor Amstrad CPC6128 running Protext Word Processor

Oh Oh! success! The command can even be shortened to just |p and it still works. So I decided to replace the ROM with a game rom (TAPPER.ROM). I loaded the ROM into the expansion like this....
mame cpc6128 -exp rom -rom1 roms\cpc\tapper.rom
Then I reset the computer. The usual start screen appeared with no message. I typed |TAPPER and guess what...
Amstrad CPC6128 running Tapper Amstrad CPC6128 running Tapper

Aaaahhhhh!!!
So *that's* how you run the ROMs plugged in via the ROM Expansion board on a CPC6128. Amazing ;-)
The ROM Expansion board is actually a pretty nice thing because it lets you have 8 ROMs plugged in and always accessible via a simple command.
That's all fairly old technology though. I would think by now there's a flashROM based board that lets you play the disks/tapes/ROMs directly from a SD card or USB stick, like most of the other old computers and consoles have now.
Anyway, now you know.
Looks like it's time to re-visit the CPCWiki linked below and try some of the other ROMs that are available :-)
Of course all the above is only academic. If you want usable/playable CPC6128 emulation use another dedicated emulator because MAME's emulation is too slow unless you have an i7.

BTW, I don't have any use for this CPC6128 which is a donation I can keep (other than stripping out the sixteen 64kx1 DRAMs for future Commodore 64 repairs hehe!) so if you are interested to buy it and help generate some funds to go towards other things, contact me.

Now for something funny....
News about my post below was posted on mameworld forums by Enrique (yeah, the guy who spent considerable time, effort and money to send this CPC6128 to be dumped). He told me some fucking bastard (his words) on MW (probably Shitdogg) deleted the post and he's not happy about that! Oh yeah that's how to treat a donator, delete his news post about this new dump for MAME and ban the poor guy.
WOW! You're supposed to be supporting MAME, not turning people away, you shortsighted asshole. You are supposed to be enthusiastic about people who provide things to dump so that your image improves and then more things will come your way. You're not supposed to whinge and whine about doing dumping work for MAME, make up lots of excuses to get out of doing the work and say you hate it and then say you don't offer any guarantees it will work afterwards (classic example here). Geez what a loser. Deleting posts and banning those people only causes grief and makes the whole of the DU look bad (well, worse than it is now, since Shitdogg is their so-called 'leader' and also a forum admin so anything stupid that he does has a domino effect).
On second thoughts, keep going! Eventually no one will bother with the DU and I'll still be going strong! Hahahahah!
This act of contempt and disrespect for donators only strenghthens what I've always said.... that Shitdogg is out of control, is only bringing a bad image to the DU and needs to be replaced immediately with someone who knows how to handle responsibility and lead a team the right way. Need more proof? Check my old post here for a refresher.
Anyway, this is hilarious! To any future donator, don't bother with anyone else when you have something that needs to be dumped, just come directly to me for proper service and care. I'll look after you.... the thousands of news posts on this site prove that :-)
Based on the rate of things arriving, people can see exactly where the knowledge and experience is.... it's right here. You can already see things here are improving even more than usual now that I have loads of free time to deal with new dumping tasks and *lots* of items have arrived over the last few months. More updates on that soon, I'm just waiting on the latest few items to be finalized :-D
The bottom line is if you want something dumped properly and working afterwards, send it to me.


7th April 2016 (2)
Another unusual item rolled up today..... an Amstrad CPC6128. The Spanish version. Thanks to Enrique for sending it out.
Here's some pics....
Amstrad CPC6128 Spanish version Amstrad CPC6128 Spanish version Amstrad CPC6128 Spanish version Amstrad CPC6128 Spanish version Amstrad CPC6128 Spanish version

There is a fairly large archive of CPC ROMs (etc) at http://www.cpcwiki.eu/index.php/ROM_List
However a lot of the OS ROMs are non-standard as per real life ROMs found on the CPC6128 hardware and don't work in MAME's CPC6128 emulation, including the Spanish version..... which is why the CPC6128 was sent to me for a re-dump :-)
The existing dump does not work in MAME and is considered a bad dump by MAME's criteria. They may or may not work in other emulators but that is not my problem or my concern. My job here is to dump it correctly so it works in MAME.
The BASIC and BIOS are combined into one 32k 'OS' ROM and the Floppy OS is in a 16k ROM. You can see those two ROMs in the pic above, located just below the Z80 CPU.
The Floppy OS ROM is marked 'AMSTRAD 40015' at IC204 and the OS ROM is marked 'AMSTRAD 40038' at IC103.
The Floppy OS ROM is common to all versions of the CPC6128 and under the ROM, printed on the PCB is '40015'.
Under the OS ROM printed on the PCB it says '40025' so I'm guessing the regular common English version would be marked with that number too.
The existing dump of the Spanish OS ROM is 16k, therefore incomplete and thus bad. Again, this is as far as MAME is concerned.
The actual ROM is a 23256 mask ROM, but this particular OS ROM used in the CPC6128 is not 100% compatible with a 27256 and can't be read using that type. Because the ROMs are slightly non-standard it requires a little trick to get a good dump out of it.

I'm told the most important key on a Spanish keyboard is the enye (), which is located next to the L key.
As you can see from the screen shot below (running in MAME), it is there and emulation is working just fine using my re-dumped ROMs :-)
The only other difference I see is the top title has a (s3) at the end, whereas the existing English version says (v3).
Amstrad CPC6128 Spanish version

As usual, with many early ROM dumps they were very poorly documented, or not at all and the file names are a big mess. This re-dump fixes that problem too :-)

If you want to try the CPC6128 emulation (or in fact any old computer emulation) you'll need to know a few simple commands.
Unfortunately MAME's UI is quite poorly designed and has no built in or external simple 'how to use' help file system via simple text files (like it *should* have), so I'll list a few simple CPC6128 commands here for loading the various media types.

Note you should be at a command prompt and in your MAME directory (i.e. C:\MAME or where-ever your MAME.EXE is located). If not CD to the correct directory. You also need the CPC6128 ROMs and they should be in your MAME/ROMS dir.

Loading from a cassette tape:
Get hold of a CPC6128 .cdt cassette file from the net (use google to search)
For this example the file I have is called 'xevious.cdt' and is located in C:\MAME\ROMS\CPC\
At the command prompt type mame cpc6128 -cass roms/cpc/xevious.cdt
The emulation will start and the Ready prompt will show on screen
Type |TAPE (| is shifted @ on the CPC6128 or shifted [ on a PC keyboard)
then type RUN "XEVIOUS" then press the ENTER key. Or you can just type RUN" and press ENTER
A prompt will ask you to press PLAY on the tape drive then to press any key. Press scroll lock to get PC keyboard partial control and press F2 then any key. At the top left corner a tape counter will show and then you must wait for the tape to load. You can press the PC's INSERT key to speed it up.
When it finishes loading, the game will automatically start.
Note I found using load i.e. LOAD "XEVIOUS" didn't work... it loaded but the game didn't start and there was no way to make it go. YMMV.
If you want to know what files are on the tape, type CAT and press the ENTER key. Then press PLAY and wait for the files to be listed.
Remember to rewind the tape using the UI menu (scroll lock / TAB / tape control) before issuing commands if you have previously played the tape

Loading from a disk:
Get hold of a CPC6128 .dsk file from the net (use google to search)
For this example the file I have is called 'operwolf.dsk' and is located in C:\MAME\ROMS\CPC\
At the command prompt type mame cpc6128 -flop1 roms/cpc/operwolf.dsk
The emulation will start and the Ready prompt will show on screen
Type LOAD "OPWOLF" then press the ENTER key
The file will load and then display the Ready prompt. Type RUN and press the ENTER key to start the game
Alternatively you can type RUN "OPWOLF" and the game will load and automatically run
Note I found using load would sometimes work and sometimes not, depending on the game. For example LOAD "OPWOLF" works but not for a file I have called 'outruneu.dsk'. In this case I had to type RUN "OUTRUNEU" to get it to load. Other times it would start to load then say 'Out Of Memory'. Using RUN instead of LOAD fixed most of the loading issues I had with a number of different programs I tried. But note using RUN by itself like the tape example above (i.e. RUN") doesn't work for disks.
If you want to know what files are on the loaded disk, type CAT and press the ENTER key (or |DIR). Then the files will be listed.

The manual said most commercial disks could be loaded and run by typing RUN "DISC" (aka like LOAD"*",8,1 on the C64) but it didn't work for me. There's also ROMs (.bin) available for the CPC6128 for some games and other programs that can be loaded by adding an expansion ROM BOX via MAME's command line or UI menus, but I couldn't get the actual ROMs to 'run' either. They would load and display a small text message on screen at boot-up, but I didn't see any way to 'run' it, and there's no mention of running ROM carts in the manual. As usual information is randomly spread out wide and far and MAME is no help at all so some more net research is needed :-/

Anyway, that's the basics of loading and running tape and disk software on the CPC6128 via MAME.

You might be thinking all of the command line typing is bullshit and so 80's, but actually it's the fastest and easiest way to get things going in MAME with computer emulation. Not because it's faster to type when you know what you want, but because the MAME UI sucks. Even the latest incarnation of it. Sure most of it could be done via the built-in UI now as-is providing you had time to go through the menus and set it up. The bottom line is it still has a LONG way to go before it is as professional and slick as some of the other UI's in system-specific emulators like for example, the Enterprise EP128EMU. But even typing things has it's issues because of the extreme lack of info in MAME regarding what to type.
I'm talking about MAME running computers (etc) of course. We all know MAME does arcade emulation pretty well (although you need an i7 to make proper use of it) and the UI is not all that important. But for running computers it is. MAME was king with arcade games but now that it's merged with MESS it's taken a big step backwards.
In the UI, things like the hardware add-on menus are cumbersome and unorganised. Compare that with the EP128EMU Emulator to see what a slick emulation menu system should look like. BTW, this emulator also has perfect emulation of the CPC6128 and ZX Spectrum.
Another example that should have been done years ago is internal ROM auditing. For years that code has been hidden from the release because MAMEDEV didn't want you to know what was available and wanted to shield you from becoming a pokerom. You could just use CLRMAME anyway so it was pointless. Haha!
The current UI makes it worse because there's a filter to show what is available but no way to do an audit, so the 'Available' filter shows more items than are actually available. Personally I'm not sure how an 'Available' filter can even work without doing an internal audit first. I have only a handful of ROMs on this PC, but it shows dozens of systems I don't have (for example the Famicom, and I don't even have the BIOS/boot ROMs on this PC!), and when I click on it the list changes to a long list of carts and I have none of those either. Clicking on any one of those items brings up a message stating the file can't be found. Erm.... duhhhhh! I know that I don't have any of them and they should not even be listed with the 'Available' filter activated.
Here's a pic showing what comes up when there are NO ROMs at all....
NO ROMS in MAME and it says I have some?!?!?!
Clearly the filters need some work so that the emulation looks for the BIOS/bootROM *first* and if there's no BIOS then don't show the software lists of carts etc.
The whole idea of an 'Available' filter is to only show what's **actually available** :-/
Yet another example of sloppiness, when using the menu to select a file to load in (such as a tape or disk image) the UI shows [DIR] for zip files. So it looks like this....
PACMAN.ZIP is a dir? I don't think so buddy.
LOL! Last time I checked a zip file was not a dir.
Another example, in the UI there's a 'How To' section on the right side when the < or > is clicked, but that 'How To' information is no where to be found. Obviously the How-To for arcade games is the cab instructions which is an image and available as the 'Extra Files' from various sites on the net. But for computers, this needs to be linked to an external help file to show the user how to get started. It's exactly the kind of thing that should have been designed with an extra 10 minutes of thinking and checked properly. They don't build cars with accessories that have missing pieces, everything is present and just works. I've only used this new UI version of MAME for an hour and already I found several problems. And MAME has been going for how long? ~18 years, and still not user-friendly and with a slick interface.
Hopefully one day the myopic powers at the top will wise up, move into the 21st century and make MAME more user friendly. Hopefully they will take a good long hard look at the other emulators like EP128EMU and take some ideas from it.
Hopefully one day they will actually use the full power of PCs to make MAME run at full speed instead of crawl along like a snail.
Hopefully one day they will add some kind of external linking to simple system-specific help text files to get people started and include those with MAME. Just the simple stuff like how to load the media and get it booted. Then maybe some external group will make a simple text help file for all of the computer systems supported in MAME, instantly improving MAME's image ten-fold. Maybe a group already exists who have created all of that but I didn't find it with a quick search. If it does exist now it should be included with MAME by default. At the very least the help files should be available for download together with MAME on the same site. The whole thing should be organised on a wiki and a program used to capture the relevant files and auto-make text files of the latest wiki info. It's not rocket science people. There could even be a button in the UI to download the latest set of help files straight off the hosting server without having to search 100's or 1000's of sites for 'MAME Extra' files. Now that MAME includes computers too, the whole process to make it more user-friendly requires some serious thinking and planning. Thinking and planning that has been lacking so far. For a so-called 'documentation project' this big and this old it is seriously lacking any kind of real-world user documentation that would make it more usable and friendly.
Unfortunately certain people think I'm only a ROM Dumper who knows nothing about design or programming, even though in reality I worked as a CNC/PLC Programmer at the top of my field for 30 years and designed and manufactured many thousands of things over the years including secret prototypes for billion-dollar corporations. But sadly due to me being 'just a ROM Dumper', the apathy and stubbornness of certain devs, and where MAME is now, stuck in a rut where most of the work being done is mostly pointless re-factoring (just check the github commit history online for what's going on... not a lot of useful stuff there), most of what I've suggested here will be written off and never be done.... thus MAME will stay in the dark ages forever and never really achieve mainstream exposure or the highest status for emulated computers and consoles. Maybe now that MAME is really open-source they will grab some code from some of the other better open-source GPL'd emulators and improve things. Or maybe certain devs' pessimistic attitudes will just push the project back further and into self-destruction. I suspect the latter. Only time will tell.
The moral of this story is simple..... when running computer emulation in MAME, skip the UI and just type in the bullshit at the command prompt ;-)

Anyway, regarding the above simple explanation of how to use the CPC6128, I hope it was useful to someone who might want to try the emulation. Until things improve in MAME, if you want to know more the full CPC6128 user manual is available at the CPC Wiki.


5th April 2016 (1)
Just finished another repair job, this time to a couple of Sega Afterburner II PCBs.
One had messed-up colors, that was just a bad color RAM. Here's some pics of the repair.
Sega Afterburner II PCB Sega Afterburner II PCB Sega Afterburner II PCB Sega Afterburner II PCB Sega Afterburner II PCB Sega Afterburner II PCB Sega Afterburner II PCB Sega Afterburner II PCB

After changing the bad RAM it looked like the problem was all fixed. Or was it?
Sega Afterburner II PCB
Look closely and you can see some tiny dots around the plane wings. I checked all of the crappy Fujitsu mask ROMs and they were actually all ok. Hmmm. I wonder... I'll just check those 3 EPROMs that were changed by someone else.....
They ended up bad. All 3 of them! WOW!

Changing the 3 bad EPROMs fixed the graphics problem.
Sega Afterburner II PCB

After talking with the owner I suggested he should get rid of all of the Fujitsu mask ROMs and replace them with EPROMs so it will last longer because this board is running in a cab. He agreed, so I bought some equivalent EPROMs (27C1000 to replace 831000 28 pin masks) and programmed the whole lot. Here's a pic of the finished job.
Sega Afterburner II PCB

The other Afterburner worked fine so the fault is with the monitor in the cabinet. I checked the ROMs on this version and it is a moving cab DX version which is currently not dumped. So that's another new dump found :-)


23rd March 2016
With the large amount of spare time I have now, in between sleeping a lot to catch up on 30 years of lost sleep, and going out with friends for lunch or a cappuccino, I occasionally have time to look at repair jobs.

An interesting and unusual repair job came in last week.
SNK Neogeo AES Console
It's a Neogeo AES console.

These seem to be pretty rare nowadays and expensive *if* you can find one for sale.
This one was initially dead. It had developed a bad connection between a RAM and the CPU due to some minor corrosion because it was stored poorly for a few years outside in a shed. After quickly finding the problem I connected it temporarily with a couple of micro jumper clips and up it came, working fine. The bad track went under both RAMs and only on the top side of the PCB so I patched the track as neatly as possible. Now it's working just fine :-)
Here's some pics of the repair....
SNK Neogeo AES Console SNK Neogeo AES Console SNK Neogeo AES Console SNK Neogeo AES Console

The owner also wanted a Uni BIOS fitted so I did that too.
SNK Neogeo AES Console SNK Neogeo AES Console SNK Neogeo AES Console SNK Neogeo AES Console

If you need something repaired and can't find anyone to look at it, or as in this case, no one has any clue what it is or how to fix it, maybe I can help you. I will look at anything including consoles, old computers (such as Amiga, Commodore 64, Atari, Mac etc etc) and arcade PCBs, plus anything else electronic that happens to be out there.

To give you an example, a while ago I fitted a region mod chip to a Blueray player for a friend.
Region Modchip fitted to a Blueray player Region Modchip fitted to a Blueray player Region Modchip fitted to a Blueray player

However please note I don't do repairs for free, otherwise I'd be inundated with repair requests and I'd have no time for lunch and the cappuccinos!
But don't worry, my repair fees are quite reasonable and if it can't be repaired there's no charge..... you just pay return postage if you want it back or nothing if you don't want it back. Drop me an email if you have something that needs to be repaired :-)


20th March 2016
Due to getting a faster internet connection this site has moved slightly.
The new URL is http://members.iinet.net.au/~lantra9jp1_nbn/gurudumps/

Please update your bookmarks.

In other (brief) news, lots of stuff has arrived over the last few weeks. I'll post an update on that soon.


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