Signetics Absolute Object Format, Code 85 - Data I/O UniSite-xpi User Manual

6. Translation Formats

Signetics Absolute Object Format, Code 85

Figure 6-12
An Example of Signetics Absolute Object Format
Start Character
Transfer Address
6-26
Figure 6-12 shows the specifications of Signetics format files. The data in
each record are sandwiched between a 9-character prefix and a
2-character suffix.
Address Check
:00001020FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00
:00101060FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00
:002010A0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00
:003010E0FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00
:00401021FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00
:000000
Byte Count (00 in End-of-File Record)
LEGEND
Nonprinting Carriage Return, line feeds, and nulls determined by null count
The start character is a colon. This is followed by the address, the byte
count, and a 2-digit address check. The address check is calculated by
exclusive ORing every byte with the previous one, then rotating left one
bit. Data is represented by pairs of hexadecimal characters. The byte
count must equal the number of data bytes in the record. The suffix is a
2-character data check, calculated using the same operations described
for the address check.
The end-of-file record consists of the colon start character, the address,
and the byte count (equal to 00).
2 Hex Characters (1 Byte)
Data Check
Data
Records
0084-2
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