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Fast I/O Function Codes and Modifiers  



This section lists the function codes and parameters for the $IO_SETUP system service.

Functions Arguments
IO$_READVBLK IO$_READLBLK IO$_WRITEVBLK IO$_WRITELBLK
bufobj - user's buffer

iosobj -- I/O Status Area (IOSA)

astadr -- Completion AST routine

flags -- longword mask

return_fandle -- fandle address


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