| Re: [hatari-devel] TT emulation crashes when there is no ACSI drive |
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On Montag, 12. August 2019 00:47:55 CEST Eero Tamminen wrote:
> * Pexec() code needs to do allocations etc from TOS, so that TOS
> is aware where the executed program is and so on. These are
> much easier to do from native code than trying to somehow force
> same from host side by manipulating regs, stack etc.
TOS executes programs in the AUTO-Folder by Pexec(0, ...). Hatari catches the
call before actually emulating the trap instruction, so theoretically you can
manipulate the mode to 5 (create basepage only). That way TOS will do the
needed allocations. Then you have to find a way to get control in the emulator
when that call returns, load the program directly, relocate it, and pass a
2nd call to TOS with mode 4 (just go). May look a bit strange, but it works
(i'm doing similar things in my modified version of STonX, which does not need
the cartridge code at all).