[ti 99/8 emulation/usage]

Not wanting to discount the great work that @mizapf is doing on the 99/8 Mame emulation side... However would it be possible to look at the MiSTer as a possible "hardware" target for both 99/8 and possibly Geneve given that we have the circuit diagrams for those machines?

 

I am not a coder, but I am really enjoying the TI-99/4A cores that @Flandango and others are working on at the moment, and to have an FPGA implementation of both of these machines would truly be awesome from my perspective.

 

Just a thought...  

[TI-99/4a MiSTer Core]

@arcadeshopper and @Flandango thanks for the responses. Using Paged378 I got Force Command to work under the core. 

Thanks so much for the help and the great work on the core. It really is a thing of beauty ?

[TI-99/4a MiSTer Core]

Quick (hopefully not silly....) question - I have been trying to load Force Command 1.32 under this new core and am not having any success. Have tried using the .M99 and ROM and GROM selections in the core and I can't seem to get it to load.

 

Not sure what I am doing wrong or if Force Command can't be used with this core at the moment. Any help would be great!

 

Cheers

[CorComp Disk Manager DSK]

16 hours ago, Schmitzi said:

 

hey Mark that sounds good. By chance, are you from Germany ?

 

 

Unfortunately not, I am in Australia but my surname is originally from Denmark. 

[CorComp Disk Manager DSK]

22 hours ago, Schmitzi said:

 

Hi, I neither checked this file nor do I know if this is the latest version... so please let me know

 

CC-DiskMan23.dsk 90 kB · 9 downloads

 

xXx

Hi Schmitzi,

 

Thanks for that. It definitely worked with a standard TI Configuration IE: TI-99/4A with 32K and Corcomp FDC, but seemed to have some sort of weird compatibility issues when used with either an EVP or as SNUG 4P configuration. Not sure what is going on but will do some more testing to see if I can get to the bottom of it.

 

Thanks again for posting the disk - really appreciate it!

 

Cheers,

 

Mark.

[CorComp Disk Manager DSK]

Hey Guys,

 

I have been playing around with MAME recently specifically with the Corcomp FDC and I tried to find a copy of the Corpcomp Disk Manager software that came with the card and also the Micro 9900 systems back in the day. If anyone has a copy of the .DSK file and is prepared to share it would be much appreciated.

 

Thanks for your help 

 

Cheers,

 

Mark.

[Oasis Pensive Abacutors (OPA) ROMS in Mame?]

2 hours ago, mizapf said:

If I understand right, the ROMs/GROMs are part of the PC99 emulator and were never used in the real hardware, so PC99 allowed for "GROMs" with 8K? (There are no real GROMs with that capacity.)

 

No, this won't work in MAME, sorry. You may replace the ROM and GROM contents (and get complaints from the emulator that the checksums are wrong), but they must fit the original sizes. I actually emulated the GROM circuits with their three 2K banks and the fourth as a combination of two other banks, so it is not just a simple setting to allow for 8K.

Hi Michael 

 

Thanks for your response. Yes the ROMS/GROMS were distributed with PC99 but I think they were also used in the Zeno board as well from memory. 

 

Based on how they are loaded by MAME then I think the standard way won't work but as Beery mentioned some sort of emulated GRAM device might work. 

 

I will add the GramKracker header to the GROMS and try it with the HSGPL under MAME and see how it goes over the weekend. 

 

Will let you know how it goes. 

 

Cheers. 

 

Mark. 

[Oasis Pensive Abacutors (OPA) ROMS in Mame?]

39 minutes ago, 9640News said:

Michael,

 

I may be mistaken, but I thought with the GramKracker, the hardware was designed with 8K memory banks.  I thought the GKUTILS package added capability to the Grom/Gram in the extra 2K.

 

I could be wrong as I was no hardware expert, but I thought I remembered going in and doing some gram editing back in the day in the upper 2K of the individual banks.

 

Beery

 

I know that the Gramulator could use the extra space but not sure about GramKracker. The SNUG HSGPL may also allow the extra space. 

 

I checked the ROMS and they are unchanged from the console ROMS so its only the GROMS that I need to load. 

[Oasis Pensive Abacutors (OPA) ROMS in Mame?]

Hey guys,

 

Back in the day I purchased a copy of PC99 from CADD Industries and had played around with it extensively back then. One of the things I really liked was being able to use the OPA ROM/GROM set in PC99 as it had that great startup screen to do disk catalogs as well as start the modules. 

 

As I said I have a legitimate copy of the ROM/GROMS and wonder is there any way of converting them to work in MAME? I have played around and successfully split the ROM file into HIGH byte and LOW byte format which MAME requires and called them all the right names in the .ZIP archive. I know that the GROMS are 8K instead of the usual 6K and MAME complains about the length discrepancy and this may be the stumbling block right there....

 

If someone knows how to convert them and using them in MAME it would be appreciated.

 

Cheers,

 

Mark. 

[TI-99/4a MiSTer Core]

Is it just me or is the disk emulation broken on this build? I am unable to get a disk image to load on either DSK1 or DSK2 at this stage....

[Hello]

Call me stupid, but I have become quite fond of the beige console recently.... I have both but have been using the beige one more lately and am enjoying it immensely. Just sayin

[Any Aussies in this group?]

On 6/1/2021 at 7:41 PM, Hawkangel said:

I honestly don’t remember this computer released in Australia. 
Do any other Aussies on here?

Also, if I was to buy one off eBay it would be from the USA so does anyone know how to get an Australian power adapter?

@Hawkangel The TI-99/4 & the 4A were both released in Australia, and I used to work for one of the computer stores in Sydney (ComputerWave in the city) that sold a boat load of them when the unit was discontinued. I was a member of the TISHUG group for quite a few years and still love looking back at those old newsletters with some fond memories of a simpler time.... 

 

As @Ksarul mentioned, the Aussie groups were very resourceful and created lots from both a hardware (Horizon RAMdisk Clone) and software (Funnelweb) for example.

 

I am so happy that even though there is not much happening now from an Aussie perspective, that the rest of the community worldwide has never really slowed down. I think this a testament to the resourcefulness and the resilience of the TI community and the love for our little orphan computer...

 

Cheers,

 

mnielsenau 

[Best video display for ti99/4a]

1 hour ago, pixelpedant said:

Yes, I use an OSSC with an F18A for the purposes of my main everyday-use machine.  The OSSC has a DE-15 plug which accepts 31KHz RGBHV, so this works with no special cabling of any kind.  Just plug it in, select the right input, and away you go. 

@pixelpedant Thanks for that I must admit I didn't realize that the OSSC had a VGA input... doh.  BTW I love your YouTube videos and your sense of humor in them. As a sarcastic Aussie I really get your humor....

[Best video display for ti99/4a]

9 hours ago, pixelpedant said:

Same.  OSSC is my preferred option.  For upscaling F18A RGB as well. 

@pixelpedant I just wanted to check that you are using an OSSC with the F18A? If so is there a specific VGA to SCART cable that you are using?

[Using a TIPI and a nanoPEB together]

12 minutes ago, arcadeshopper said:

If you're talking about the combo board there's a disable jumper for disabling the 32k

 

Sent from my LM-V600 using Tapatalk

 

 

 

 

Thanks for that - Guess I should have read the TIPI/32K WIKI a little more closely.....

[Using a TIPI and a nanoPEB together]

Hey Guys,

 

I was just wondering if it is possible to use both a TIPI and a nanoPEB together on a console due to the fact that both of them provide 32K memory expansion? I am sure that there could be some bus conflicts if they were both plugged in together, however I wonder if there is a way of disabling the 32K expansion on either one of the devices so that they can be safely used together?

 

Just want to know that I am not going to damage my system or wither of the devices if I plug them all in together.

 

Regards,

 

mnielsenau

[New F18A install issues.]

13 hours ago, wierd_w said:

If they werent such boat anchors, that cost more to ship than they are worth... I would give one of the . (ahem) small collection in my upstairs storage.

@wierd_w Thanks for the offer on the VGA monitor  but you are right the shipping to Singapore would be HORRENDOUS    

[New F18A install issues.]

Yep I definitely think it is the VGA to HDMI converter, but I think I will try the ferrite beads on a few of the cables before I invest in a Retrotink. Else I will go and buy a refurbed $30 4:3 VGA LCD monitor on Facebook marketplace....

 

Am loving the F18A - I don't know how I managed to get along without using 80 columns for all those years...  @arcadeshopper Thanks for the tip on using Force Command on TIPI... Love that command line interface - am reliving my MS-DOS days all over again!

[New F18A install issues.]

Hey Guys,

 

Have just installed an F18A in a beige (non v2.2) console and whilst the image on screen is crystal clear, I am getting some herringbone waves (ground loop interference) on the screen. I am using a VGA to HDMI (USB powered) adapter as I do not have a monitor at the moment that has a VGA connector. 

 

I have tried the usual ground loop correction things like having the monitor and the TI plugged into the same wall socket etc. I have also tried a number of different brands and model numbers for VGA to HDMI converters. Some are better than others, but all have some sort of interference that comes in waves from time to time. I am considering ferrite beads on all of the wires, but I just need to get some to test. I am running V1.8 of the firmware as when I tried V1.9 there was some strange blurring effects on some spots on the screen. Also the herringbone waves were still there so I downgraded back to V1.8 which at least is clear apart from the waves of interference. 

 

I also made sure that there was no interference on screen with the original 9918A chip installed before I installed the F18A. I was wondering if anyone else had seen this issue and if anyone has any advise as to how to rectify?

 

I absolutely love the F18A and I can't wait to see its screen without the interference. 

 

Thanks for your help.

 

Cheers,

 

mnielsenau

[HSGPL DSR file help please....]

Hi Michael,

 

Thanks so much for the reply much appreciated. I was able to download the files and thanks to your excellent guide I was able to get the HSGPL emulation under MESS up and running. am playing with the different GROM bases at the moment and generally getting to know my way around the HSGPL "board". I must say that the emulation of the hardware under MESS thanks to yours and the TI communities activities is superb, I actually lost myself in the emulation and thought that I was using my real TI that is in storage now.....

 

Thanks again for your help.

 

regards,

 

Mark.

[HSGPL DSR file help please....]

Hi guys,

 

Am new to the forums, but wanted to know if anyone knows where I can get the .ZIP file for the complete package of the HSGPL DSR files? Either the 40 column or the 80 column package would do. I have tried to download the DSR package from the SNUG website, but each of the files takes me back to the homepage and does not download the file.

 

if anyone can post or point me to where I can download them from (other than the SNUG site) it would be much appreciated.

 

Thanks for your help.

 

regards,

 

mnielsenau.