Function Files - Symbol PDT 1100 Manual

PDT 1100 Terminal DLL Guide
When downloading a program file, if the length of the last record is less than 128 bytes, the
blank bytes (128 bytes minus last record length) are zero-filled so that every record is 128
bytes long.
Record length (128 bytes)
When downloading:
Record length (128 bytes)
Zero Codes
Note: In the PDT 1100-Ir protocol, CR-LF codes that are used as record
separators in data are removed before file transmission.
When receiving downloaded user programs, the PDT 1100 packs
two-byte ASCII characters into two 4-bit hexadecimal codes in a
single byte, to improve the PDT 1100's performance and memory
availability.

Function Files

Ir-Transfer Utility C DLL regards files with the extension .FN3 or .EX3 as function files.
These function files are contained in the PDT 1100-BASIC 3.0 Extension Library.
2-2
CR LF
CR LF
CR LF