TI-99/4A on Mister (based on Speccery's)

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Re: TI-99/4A on Mister (based on Speccery's)

Postby uigiflip » Thu May 24, 2018 11:40 pm

finally got working now to find working programs
Vampire 500 V2+, Mister, FPGA Replay + 68060 Daughterboard

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Re: TI-99/4A on Mister (based on Speccery's)

Postby hrvoje » Fri May 25, 2018 9:05 am

This is *AMAZING*. This was my first computer as a kid and it's magical to be able to play around with it again. I am a beginner in vhdl/fpga and hope to be able to port some cores eventually.

I hope this post encourages you to keep working on the TI99 because it's an amazing project. Thank you!

Hrvoje

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Re: TI-99/4A on Mister (based on Speccery's)

Postby hrvoje » Fri May 25, 2018 9:05 am

This is *AMAZING*. This was my first computer as a kid and it's magical to be able to play around with it again. I am a beginner in vhdl/fpga and hope to be able to port some cores eventually.

I hope this post encourages you to keep working on the TI99 because it's an amazing project. Thank you!

Hrvoje

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Re: TI-99/4A on Mister (based on Speccery's)

Postby brunosilva » Sat May 26, 2018 11:41 am

hi

i'm trying to compile this core with quartus 17.0 (menu compilation / Start compilation)

it end with the message: Info (293000): Quartus Prime Full Compilation was successful. 0 errors, 178 warnings

i didn't change any setting in quartus (should I?)...

but i didnt get any rbf file... what did I do wrong?

(i want the last version of the core because from what i read... that are some fixes from last compiled version).

full compilation message in attach
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Re: TI-99/4A on Mister (based on Speccery's)

Postby GreyRogue » Sat May 26, 2018 4:36 pm

brunosilva wrote:hi

i'm trying to compile this core with quartus 17.0 (menu compilation / Start compilation)

it end with the message: Info (293000): Quartus Prime Full Compilation was successful. 0 errors, 178 warnings

i didn't change any setting in quartus (should I?)...

but i didnt get any rbf file... what did I do wrong?

(i want the last version of the core because from what i read... that are some fixes from last compiled version).

full compilation message in attach

From the log:
Info (115017): Design contains a time-limited core -- only a single, time-limited programming file can be generated

You can only build the lite version (VGA) with the free license of Quartus. Change the drop down from ti994a to ti994a-lite. Someone with the full license would need to build the non-lite rbf.

I just tried the lite version, and it looks like it actually does work over HDMI, but it resets after loading the tiroms (looks like it hangs at first). If you wait for a minute or two, it will restart the entire Nano and then when you load the tiroms it will work, but won't be scaled. I just checked in the lite version rbf which you can download from GitHub if you have VGA or don't mind the small video size, feel free to use it. Otherwise someone else will have to build the full rbf.

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Re: TI-99/4A on Mister (based on Speccery's)

Postby NML32 » Sat May 26, 2018 7:21 pm

GreyRogue wrote:
I just tried the lite version, and it looks like it actually does work over HDMI, but it resets after loading the tiroms (looks like it hangs at first). If you wait for a minute or two, it will restart the entire Nano and then when you load the tiroms it will work, but won't be scaled. I just checked in the lite version rbf which you can download from GitHub if you have VGA or don't mind the small video size, feel free to use it. Otherwise someone else will have to build the full rbf.


The light version just keeps resetting my DE10-nano. Hopefully, someone with the full version of Quartus will compile it for you.

davide
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Re: TI-99/4A on Mister (based on Speccery's)

Postby davide » Sun May 27, 2018 5:45 am

Here's a quick build of the Full version. I've only tried TI Basic and that seems to be working fine.
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Re: TI-99/4A on Mister (based on Speccery's)

Postby NML32 » Sun May 27, 2018 11:44 am

davide wrote:Here's a quick build of the Full version. I've only tried TI Basic and that seems to be working fine.


Thanks for compiling the core, I tried a few games and they loaded and ran fine. :cheers:

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Re: TI-99/4A on Mister (based on Speccery's)

Postby diwou » Mon May 28, 2018 9:33 am

I still can't quite get along with creating the ROMs. What you find on the Internet is either C, C + D, C + D + G, D + G or just G. So far, so good. Creating the tiroms.bin was no problem. Creating a tiroms.bin with C + D files also works (even the only CDCDCD works). But that's all I can get to work.

For example, if I want to make a ROM out of C + D + G, I understood that the file should look like this:

Code: Select all

C-FILE D-FILE hole48k hole64k 994agrom.bin G-FILE hole8k hole8k hole8k hole32k 994arom.bin hole8k hole8k


But when I load this, not only the TI994a core crashes, but the whole board and has to be disconnected from the power supply.

So my question would be how to handle the C + D + G, D + G and G files. Do I always have to make a complete 256k image, or does it work like with the C+D files in a 64k file?

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Re: TI-99/4A on Mister (based on Speccery's)

Postby NML32 » Mon May 28, 2018 1:51 pm

diwou, All you need to do is create the tiroms.bin (make sure it's 192Kb). 994aROM.bin is missing from the repository so you'll need to find it and add it to the firmware directory before you make the tiroms.bin.

First load tiroms.bin under the first option in the OSD: "Load full or c.bin *.bin"
Then you can load the game ROMS C, D, or G bins from the OSD.

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Re: TI-99/4A on Mister (based on Speccery's)

Postby GreyRogue » Mon May 28, 2018 11:28 pm

diwou wrote:I still can't quite get along with creating the ROMs. What you find on the Internet is either C, C + D, C + D + G, D + G or just G. So far, so good. Creating the tiroms.bin was no problem. Creating a tiroms.bin with C + D files also works (even the only CDCDCD works). But that's all I can get to work.

For example, if I want to make a ROM out of C + D + G, I understood that the file should look like this:

Code: Select all

C-FILE D-FILE hole48k hole64k 994agrom.bin G-FILE hole8k hole8k hole8k hole32k 994arom.bin hole8k hole8k


But when I load this, not only the TI994a core crashes, but the whole board and has to be disconnected from the power supply.

So my question would be how to handle the C + D + G, D + G and G files. Do I always have to make a complete 256k image, or does it work like with the C+D files in a 64k file?

Sorry, the comments in the cmd file are wrong. I just copied the file Speccery made and modified it to work with this one. His has more memory and the image isn't the same. I need to update the comments in the file but haven't done so yet. See my comment above for the correct order of files. Short version:
First 64K=Cart Roms (e.g. C, D)
Second 64K = GRoms (system GRoms and cart GRoms)
Third 64K = System Roms 994aROM.bin needs to be at 40K of this bank.

Your example has an extra hole64k which is throwing things off (also assuming your G-FILE is 24K so that the GRom section takes the full 64K [24K system GROM, 24K cart GROM and two 8K holes] and which would place the 994aROM.bin file at 40K). Note you might need to replace the first hole48k with copies of C-FILE and D-FILE depending on how the banking is handled by the code.

Alternatively, just do what NML32 suggested and create the tiroms.bin, load that first, then use the OSD to load each individual cart C,D and G file (D-File should always be last).

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Re: TI-99/4A on Mister (based on Speccery's)

Postby NML32 » Sat Jun 09, 2018 7:37 pm

I don't think it was mentioned in this thread but if you rename tiroms.bin to boot.rom the rom loads automatically just like it does for other MiSTer cores. :cheers:

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Re: TI-99/4A on Mister (based on Speccery's)

Postby diwou » Sun Jun 17, 2018 2:58 pm

NML32 wrote:First load tiroms.bin under the first option in the OSD: "Load full or c.bin *.bin"
Then you can load the game ROMS C, D, or G bins from the OSD.


Thanks for the tip! Now it works too!

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Re: TI-99/4A on Mister (based on Speccery's)

Postby NML32 » Mon Jun 18, 2018 12:56 pm

diwou wrote:
NML32 wrote:First load tiroms.bin under the first option in the OSD: "Load full or c.bin *.bin"
Then you can load the game ROMS C, D, or G bins from the OSD.


Thanks for the tip! Now it works too!

Have you tried renaming tiroms.bin to boot.rom?

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Re: TI-99/4A on Mister (based on Speccery's)

Postby diwou » Mon Jun 18, 2018 1:42 pm

NML32 wrote:Have you tried renaming tiroms.bin to boot.rom?


Yes, and then copied to the TI-99_4A directory. Now the Basic is loaded automatically when the core is started.


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