Tyche ROM oddity

[t0nyt]

I've just had a quick play with the Tyche ROM in Q-emuLator, looks interesting

But given that I would assume it was a sequel to the JS ROM I don't follow why "WHEN ERRor" doesn't work (seems like it's based on JM ROM? or they just dropped the command/function for some reason?)

Was wondering what others experience of it is please?

Many thanks

[RalfR]

There is a dissassemly of "Tyche" on Dilwyn's site with a Readme. Very informative!

[t0nyt]

There is a dissassemly of "Tyche" on Dilwyn's site with a Readme. Very informative!

Thanks. The readme is interesting but it does seem to suggest at the end that it was based on JS. Strange then that WHEN ERRor doesn’t work

[t0nyt]

Will burn an eeprom and try on a bbql

[RalfR]

I don't follow why "WHEN ERRor" doesn't work

WHEN ERRor is in the name table (quick look through the code).

[t0nyt]

I don't follow why "WHEN ERRor" doesn't work

WHEN ERRor is in the name table (quick look through the code).

Strange, didn’t work with my boot file

Ah, maybe it’s displaying a not found error but continuing

I’ll try it again with a bit of debugging to see what’s actually happening

Many thanks

[t0nyt]

It's definitely falling over when WHEN ERRor (which just does a CONTINUE) tries to lrun a file that's not there

It also wipes out the boot program from memory

Will try on a BBQL and see if it's any different

[RalfR]

"Tyche" is quite interesting in that it loads and saves in tokinized form using LOAD and SAVE, similar to QLOAD and QSAVE.

This also works with different memory sizes (large memory saved, small memory loaded) and also whether any extensions were included when saving and not when loading.

[Cristian]

That ©5891 number, when reversed, gives the year 1985. The real year of release, I suppose. What a strange ROM

[t0nyt]

That ©5891 number, when reversed, gives the year 1985. The real year of release, I suppose. What a strange ROM

I didn’t spot 5891=1985, maybe I’ve put the ROM in back to front…