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8.2 Data Files
8.2.1 Overview
Like user programs, data files will be stored in the user area of the memory. The location of the
user area differs depending upon the BHT series as shown below.
* Drive B is provided for ensuring the compatibility with the BHT-5000/BHT-6000/BHT-6500.
The memory capacity available for data files differs depending upon BHT series as follows:
In the BHT-3000/BHT-4000, the memory space available for data files is (Memory space on the
single drive - Memory space occupied by user programs). In the BHT-7000/BHT-7500, it is
(Memory space on drive A - Memory space occupied by user programs). In the BHT-5000/
BHT-6000/BHT-6500, it is (Memory spaces on drives A and B - Memory space occupied by
user programs).
For the memory mapping, refer to Appendix F, "Memory Area." You may check the current
occupation of the memory with the
FRE function.
8.2.2 Naming Files
The name of a data file generally contains filename.extension. The filename can
have one to eight characters; the
extension can have one to three characters.
In the BHT-5000/BHT-6000/BHT-6500/BHT-7000/BHT-7500, the
filename.extension
should be preceded by the drivename. The drivename is A: or B:. If the drivename is
omitted, the default A: applies.
The extension can be omitted. In such a case, a period should be also omitted. The fol-
lowing extensions cannot be used for data files:
Unavailable extensions for data files .PD3, .FN3, .EX3, and .FLD
Programs make no distinction between uppercase and lowercase letters for drive names, file
names, and extensions. They regard those letters as uppercase.
In the BHT-3000, the following file names cannot be used for data files since they are reserved
for Easy Pack:
BHT series Location of user area
BHT-3000/BHT-4000
BHT-5000/BHT-6000/BHT-6500
BHT-7000/BHT-7500
A single drive (no drive specification)
Drive A and drive B
Drive A and drive B*
Reserved File Names
PACK1.DAT
PACK2.DAT
PACK3.DAT
PACK4.DAT
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