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SEARCH COMMANDS
Command
Code
Function
Data Compared
Single
Multi-
Track
track
Search Home Ad-
Locates a home address area selected by the search
Four bytes (CCHH) of
dress Equal
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89
argument.
HA area from selected
drive and track, with
CCHH from the system.
Search ID Equal
Locates a count area selected by the search argument.
Five bytes (CCHHR) of
next count area from se-
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81
lected drive and track,
with CCHHR from the
system.
Search ID High
Locates a count area selected by the search argument.
Five bytes (CCHHR) of
51
D1
(Locates any ID from the track that is higher than the ID next count area from
from system.)
drive and track with
CCHHR from system.
Search ID Equal or
Locates a count area selected by the search argument.
Five bytes (CCHHR) of
High
71
F1
(Locates ID from track that is equal to or higher than
next count area from
the ID from system.)
drive and track with
CCHHR from system.
Search Key Equal
Locates a key area selected by the search argument.
Key bytes from selected
(The key area compared is from the next record unless
drive and track with key
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A9
chained from a Read Count or Search ID. If chained
from system.
from a Read Count, the key searched is in the same
record.)
Search Key High
Locates a key area selected by the search argument.
Key bytes from selected
49
C9
(Same as Search Key Equal except finds any key higher drive and track with key
than system key.)
from system.
Search Key Equal or
Locates a key area selected by the
searc~h
argument.
Key bytes from selected
High
69
E9
(Same as Search Key Equal except key is equal to or
drive and track with key
higher than system key.)
from system.
Figure 12. Search Commands
Channel Commands
27
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