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Topic       : Pure C Documentation
Author      : John Kormylo
Version     : PC.HYP 1.1
Subject     : Documentation/Pure C
Nodes       : 193
Index Size  : 5414
HCP-Version : 3
Compiled on : Atari
@charset    : atarist
@lang       : en
@default    : 
@help       : Help
@options    : +g -i -s +x +z -t4
@width      : 75
View Ref-File[ File/TOS Shell                                           CONTROL-Z ]

... activates a user supplied subshell routine (if any).

The system variable _shell_p ($4F6) must contain the address of the
routine, or environment parameter SHELL must define a pathname.