TOPS-10 Monitor Calls Manual Volume 2 AA-K039D ... - Trailing-Edge

ETHNT. [CALLI 223]
22.46 ETHNT. [CALLI 223]
FUNCTION
The ETHNT. monitor call accesses the Ethernet. ETHNT. allows you to
read the Ethernet configuration, enable and disable protocols, enable
and disable multicast addresses, and send and receive datagrams. For
an overview of Ethernet, as well as a full description of datagram
bu£fer~ (addressed using .ETUBL) and function buffers (addressed
using .ETBFL and .ETBFA), refer to Chapter 5, Volume 1.
CALLING SEQUENCE
XMOVEI ac,addr
ETHNT. ac,
error return
skip return
In the calling sequence, the program supplies the addr, which
address of the ETHNT. argument block.
is the
The format of the argument block is:
Offset
a
Symbol
.ETFCN
Contents
Function code word for the argument block. This
word contains the length of the argument block,
and may also contain a flag. Its format is:
Bits
0-8
Symbol
ET.FFL
Meaning
Function-specific flags.
Bit
1
Symbol
ET.FZC
Meaning
Zero counters
after they have
been read. Use
this flag with
functions .ETRCC,
.ETRPC, and
.ETRKC.
9-17 ET.FFN
18-35 ET.FLN
One of the function codes listed
at the end of the argument block
description.
Length of the argument block.
1
.ETPSW
Contains the portal status and the assigned portal
ID. ET.PST (Bits 0-8) may contain one or more of
the following flags:
Bit
a
1
2
Symbol
ET.PON
ET.PXB
ET.PRB
Meaning
Portal is online.
Transmit buffers available.
Receive buffers available.
The rest of .ETPSW contains the portal ID, .ETPID,
assigned by the monitor.
22-129