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I/O Memory Data Formats Section 3-6
TXT Format When hexadecimal I/O memory data (1234, 5678, 9ABC, etc.) is being copied
to an attached file in TXT format, the data is converted to ASCII in one-word
fields or two-word fields. The fields (one-word or two-word) are delimited by
tabs ([HT]: 09) and a return and line feed ([CR][LF]: 0D0A) are inserted after
the specified number of fields.
Example: Tab-delimited words with a return every 10 fields
Note The TXT file format is compatible with the CPU Unit's READ DATA FILE and
WRITE DATA FILE instructions (FREAD and FWRIT) set to tab-delimited
data.
CSV Format When hexadecimal I/O memory data (1234, 5678, 9ABC, etc.) is being copied
to an attached file in CSV format, the data is converted to ASCII in one-word
fields or two-word fields. The fields (one-word or two-word) are delimited by
commas (",": 2C) and a return and line feed ([CR][LF]: 0D0A) are inserted
after the specified number of fields.
Example: Comma-delimited words with a return every 10 fields
Note The CSV file format is compatible with the CPU Unit's READ DATA FILE and
WRITE DATA FILE instructions (FREAD and FWRIT) set to comma-delimited
data.
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9
+0 1234 5678 9ABC DEF0 1234 5678 9ABC DEF0 1234 5678
+10 9ABC DEF0 1234 5678 9ABC DEF0 1234 5678 9ABC DEF0
31 32 33 34 09 35 36 37 38 09 39 41 42 43 09
1 2 3 4 [HT] 5 6 7 8 [HT] 9 A B C [HT]
35 36 37 38 0D 0A 39 41 42 43 09
5678[CR][LF]9ABC[HT]
1234@5678@9ABC@DEF0@1234@5678@9ABC@DEF0@1234@5678@
9ABC@DEF0@1234@5678@9ABC@DEF0@1234@5678@9ABC@DEF0
The @ character represents a hard tab and is displayed as a tab in text displays.
I/O memory contents
TXT file contents
Contents of TXT file when displayed
1234,5678,9ABC,DEF0,1234,5678,9ABC,DEF0,1234,5678,
9ABC,DEF0,1234,5678,9ABC,DEF0,1234,5678,9ABC,DEF0
+0 +1 +2 +3 +4 +5 +6 +7 +8 +9
+0 1234 5678 9ABC DEF0 1234 5678 9ABC DEF0 1234 5678
+10 9ABC DEF0 1234 5678 9ABC DEF0 1234 5678 9ABC DEF0
31 32 33 34 2C 35 36 37 38 2C 39 41 42 43 2C
1234,5678,9ABC,
35 36 37 38 0D 0A 39 41 42 43 2C
5678[CR][LF]9ABC,
I/O memory contents
CSV file contents
Contents of CSV file when displayed