INDIR(II) 8/5/73 INDIR(II)
NAME
indir - indirect system call
SYNOPSIS
(indir = 0.; not in assembler)
sys indir; syscall
DESCRIPTION
The system call at the location syscall is executed. Execu-
tion resumes after the indir call.
The main purpose of indir is to allow a program to store ar-
guments in system calls and execute them out of line in the
data segment. This preserves the purity of the text seg-
ment.
If indir is executed indirectly, it is a no-op. If the in-
struction at the indirect location is not a system call, the
executing process will get a fault.
SEE ALSO
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DIAGNOSTICS
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