t/run/kill_perl.t Tests that kill perl.
t/run/runenv.t Test if perl honors its environment variables.
t/TEST The regression tester
+t/test.pl Simple testing library
t/TestInit.pm Preamble library for core tests
taint.c Tainting code
thrdvar.h Per-thread variables
thread.h Threading header
-Todo.micro The Wishlist for microperl
+Todo.micro The Wishlist for microperl
toke.c The tokener
uconfig.h Configuration header for microperl
uconfig.sh Configuration script for microperl