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# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc.
include <syserr.h>
include <config.h>
include <fio.h>
# FDEVBF -- Install a new binary file device in the device table, if it has
# not already been installed.
procedure fdevbf (zard, zawr, zawt, zstt, zcls)
int i, dev_epa
extern zard(), zawr(), zawt(), zstt(), zcls()
include <fio.com>
begin
# Search the device table to see if the device is already installed.
# The ZDEV array indices the EPA of the read procedure of each device
# driver.
call zlocpr (zard, dev_epa)
for (i=1; i < next_dev; i=i+LEN_DTE)
if (zdev[i] == dev_epa)
return
# Device not found; install the new device in the device table.
next_dev = next_dev + LEN_DTE
if (next_dev > LEN_DEVTBL)
call syserr (SYS_FDEVTBLOVFL)
else {
call zlocpr (zard, zdev[i])
call zlocpr (zawr, zdev[i+1])
call zlocpr (zawt, zdev[i+2])
call zlocpr (zstt, zdev[i+3])
call zlocpr (zcls, zdev[i+4])
}
end
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