RE: [Freedos-devel] FD-DEBUG and exit

[BA HCL]

Hi,
Good effort!
     I found the difference between FD-DEBUG and MS-DEBUG: application 
PSP
inside FD-DEBUG have as parent debug's PSP, which have as parent itself 
(ie.
it makes itself "primary shell", which shouldn't be terminated by 
INT21/4C).
App PSP inside MS-DEBUG have as parent the PSP, which is parent also for
MS-DEBUG. Don't know what is better, but:
- INT21/4C in MS-DEBUG terminates it.
- INT20 in MS-DEBUG under MS-DOS is trapped and returns message "Program
  terminated normally"; under FreeDOS INT20 similar to INT21/4C.
- in FD-DEBUG INT20 similar to INT21/4C and both behave wrong: first time
  these instructons may look like do nothing (though, under FreeDOS with
  plain HIMEM execution terminated with message "Unexpected single-step
  interrupt" somewhere outside FD-DEBUG), but second time anyway FD-DEBUG
  hangs.
Disregard that irritating message, FD-DEBUG is better than MS-DEBUG, it's 
true!

BAHCL
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