Specifications

8-18
User Patterns and Disk Operation
Disk Operation
The format of the three basic types of data stored on disk are detailed in Tables 8-2, 8-3
and8-4.Eachfieldisdescribedindetailinthefollowingparagraphs.
Header String Length
This unsigned integer contains the number of characters in the header string.
Table 8-1 Internal Format of Pattern/Buffer file
Offset Type Description
0 unsigned int revision code
4 unsigned int 1= pattern file good - RESERVED
8 unsigned int always 0 - RESERVED
12 unsigned int always 0 - RESERVED
16 unsigned int Header string length (=16)
20 string (max 20 chars) Header string (=HP Pattern Store)
40 unsigned int pattern index (depends on store ID)
44 unsigned int pattern type. 0= single pattern. 1= alt pattern
48 unsigned int pattern length
52 unsigned int pattern label string length
56 string (max 14 chars) pattern label string
70 unsigned int trigger bit (alt patt =0)
74 unsigned int trigger type (single patt=0), when alt patt,
0= A,B change, and 1= start of pattern
78 pattern data contents of pattern