Re: [hatari-devel] EKO system regression

[Thorsten Otto <admin@xxxxxxxxxxx>]

On Sonntag, 6. Oktober 2019 09:47:08 CEST Thomas Huth wrote:
> Opinions?

I would do the chaining again as before. Demos are certainly not the only 
programs that redirect the gemdos vector, and you'll never know whats they are 
trying to achieve. The safest way should be to catch only the calls that would 
otherwise go to the ROM, by putting your routine at the end of the chain.

If you don't want to put the code in the cartridge again: another option would 
be to insert your illegal opcode directly in the ROM, at the start of the 
gemdos dispatcher there. The addresses of all tos versions should be known, 
only problem is that they not only depend on the TOS version, but also on the 
TOS language.