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Extended Messages. Most messages are only one byte long, but extended
messages may be up to 256 bytes long. When the HP 10343B inverse
assemblers decode an extended message, the name of the message is
shown on the first line along with "xmsg" to identify it as an extended
message. Also, Msg_in or Msgout appears on the first line to indicate
whether the message is going into the initiator or out of the initiator.
Each extended message will also include information specific to that
message on the first line:
•
Modify Data Pointer includes the message arguments;
•
Synchronous Data Transfer Request includes the transfer period and
offset as a hexadecimal byte;
•
Extended Identify includes a logical unit number; and
•
Wide Data Transfer Request includes the transfer width as a
hexadecimal byte.
The next line shows the length of the extended message in hexadecimal
and the third line lists the message code. For a complete description of
specific extended messages, refer to the SCSI Standard X3T9.2/86-109
Revision 2.
Interpreting Status
The HP 10343B inverse assemblers decode all status conditions. Since
status is only one byte, the actual status is listed following the status
identifier. The status values supported by the HP 10343B inverse
assemblers are:
•
Good
•
Check Condition
•
Condition Met/Good
•
Reserved
•
Busy
•
Intermediate/Good
•
Intermediate/Condition Met/Good
•
Reservation Conflict
For more information, refer to the SCSI Standard X3T92/86-109
Revision 2.
HP 10343B Inverse Assemblers
3-19
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