Running a custom rom with lr-mame*

Folly

Indeed I have seen lua scripts that can do that.
I have also experimented once with them.
However I find it too complicated and it's probably also very hard to implement in my script.

For some systems I think I might have changed the characters in the autoboot command so the good characters are typed.
Also not an ideal situation.
For the m20 it could be different between disks also.

I have experimented with the m20floppy tool adding single INIT.CMD or INIT.BAS files to pcos102 or pcos13.
To some degree I find that that is the best solution to boot a single program directly without autoboot/menu trouble.

However there are problems with some/many programmes.
othello.bas gives an error "line buffer overflow in 0" first, typing run afterwards will run the game but it's not displayed properly in pcos102 and no idea how to enter coordinates.
In pcons13 it does the same "line buffer.... ", when running it builds up the page breaks in some line.
bd.cmd does run but has bad graphics.

Folly

@eberhab

Do you have an account here ? :https://forums.bannister.org/ubbthreads.php?ubb=postlist&Board=1

mitu

@eberhab said in Running a custom rom with lr-mame*:

I am still experimenting with -autoboot_command to get some more complex disk combinations to autostart [...]

I'm not that familiar with MAME's LUA scripts, my only attempt of using it is a simple plugin to stop the game when the menu comes up. As @folly suggested, you may ask in their forums (or on Reddit's /r/mame).

eberhab

Thanks for both your feedback. Ok, let's keep it simple. I have added a summary to the top post as suggested. Let me know if something should be changed. If you like the summary, happy if you link it! Also, the M20 could be added to the "RetroPie: Retroarch - MESS" spreadsheet.

Concerning the autoboot of games/ pcos: If people boot the right images in -flop1, they should be able to select the games from the disk's own games menu (e.g. giocchi and gamesd). Moving files between discs with m20floppy could be problematic since some of the software needs a specfic pcos version to run. Duplicating the image and renaming with fm <game> init.cmd under pcos should be the safest way, but might not be necessary since the game disks should boot up their proper pcos and games menu.

One remark concerning add-mamedev-systems: It might make sense to remove the "-flop 2" emulators from the script, since they only offer to put a rom into floppy drive 2, while drive 1 remains empty. This is I believe an invalid configuration. If the flop 2 emulators could be removed, the users also had a shorter list of possible emulators to choose from.

Concerning mame autoboot options: I am still experimenting with this for a personal project. Since the wrong characters are typed by the -autoboot_command, I also though about identifying the right corresponding characters and compensating accordingly in the command line argument. It is however impossible to find any characters on the entire keyboard producing a "0" or a "1" which are absolutely essential to identify files on the two disk drives. I'll see if I can find out more in the forums you suggested.

Folly

@eberhab

I will have a look at your summary.
Looking good up til now ;-)
Will make a link.

I did a commit filtering out -flop2, I think an improvement indeed.

If you want to test it then you have to a de-install from the experimental packages(or remove the loaders manually from the emulators.cfg).
Then you should also remove the generated module-script (which you did the de-install on) :
install-m20-from-mamedev-system-m20-flop2.sh
Then re-install m20 again in the new updated add-mamedev-systems to see if only flop1 is generated and installed.

Folly

@dmmarti

Can you add the system m20 to your "RetroPie: Retroarch - MESS" spreadsheet ?

eberhab

@Folly
Great! That was an easy fix! I just tried the new version and it works well. Thanks for the uninstall directions.

People still have a lot of emulators to choose from. I just looked again at the "basename" emulators, which seem to be the softlist emulators? I can't get them to work with softlisted images though. Did you manage? Launching e.g. the zipped giochi rom with the lr-mess-m20-basename leads to

[libretro WARN] Driver mame not found -1
[libretro WARN] Game not found: giochi
[libretro ERROR]

Can we get those to work, or would it be an option to remove the baseline emulators also?

@dmmarti
Concerning the spreadsheet, if you add the M20, for the Notes section I'd suggest:

Backspace is <ctrl> + h
Show Floppy/ rom content vl <enter> (if rom supports it)
<game-name>.cmd files can be launched by just typing game-name <enter>
Two OS operating modes are supported: System mode (> prompt) and basic language mode (# prompt). Switch between the two with system and ba commands respectively

For the Advanced tweaks section I suggest to mention the options:

-flop1 /home/pi/RetroPie/roms/m20/pcos102.img -flop2 %ROM%
-bios1 -flop1 %ROM% (for msdos2_0)

Thanks!

Folly

@eberhab said in Running a custom rom with lr-mame*:

Did you manage? Launching e.g. the zipped giochi rom with the lr-mess-m20-basename leads to

giochi isn't in the softlist, it's called gamesi (gamesi.zip contains giochi.img).

I have othello and some other programmes booting now.
I can move the cursor but can't place a piece in othello, do you have any luck ?

eberhab

@Folly I got it! Also now I understood how the softlists work, I adapted the summary in the top post accordingly. It now works for me as well.

Will look into othello and a few other roms in the next days. I am still working on my autoboot with lua problem :)

EDIT: Othello works for me by moving the cursor with the keypad arrows (8, 4, 6, 2) and placing the stone with <space>

eberhab

@Folly Thanks to your suggestions I received some helpful info on Reddit regarding the messed up characters in the autoboot_command. If you switch your PCOS to Italian, then the autoboot woks perfectly. One can make a floppy autoboot into Italian by prepending a line e.g. 5 EXCEC "sl 0" to INIT.BAS. Its also seems that pcos102 already boots into italian environment.

In order to play Othello on the other hand, change the pcos language setting to match your keyboard, by setting it to e.g. english or german. Then the space bar to place the stone should work.

Folly

@eberhab

Ok,
Good find !