DataMuseum.dk

Presents historical artifacts from the history of:

ICL Comet 32

This is an automatic "excavation" of a thematic subset of
artifacts from Datamuseum.dk's BitArchive.

See our Wiki for more about ICL Comet 32

Excavated with: AutoArchaeologist - Free & Open Source Software. 

top - metrics - download

⟦37f234e4c⟧ TextFile

    Length: 649 (0x289)
    Types: TextFile
    Notes: UNIX file
    Names: »syscall.2«

Derivation

└─⟦26887b7e0⟧ Bits:30009717 Comet 32 harddisk image
    └─⟦28c352965⟧ »/a« UNIX Filesystem
        └─⟦this⟧ »usr/man/man2/syscall.2«

TextFile

.ig
	@(#)syscall.2	2.1	7/1/84
	@(#)Copyright (C) 1983 by National Semiconductor Corp.
..
.TH SYSCALL 2
.SH NAME
syscall \- indirect system call
.SH SYNOPSIS
.nf
.BR "syscall(number, arg, ...)" 
.fi
.SH DESCRIPTION
.I Syscall
performs the system call whose assembly language
interface has the 
.I number,
specified
and further arguments
.IR arg .
.PP
The value generated by the system call
is returned in register r0.
.SH DIAGNOSTICS
When the F-bit is set,
.I syscall
returns \-1 and sets the
external variable 
.I errno
(see
.IR intro (2)).
.SH BUGS
There is no way to simulate system calls
such as
.IR pipe (2),
which return values in register r1.