7-Bit Versus 8-Bit Environments - Genicom GEK 00031B Programmer's Manual

7-Bit Versus 8-Bit Environments

Chapter 8. PPL3 Plus Emulation
In some environments, only 7 bits are used to encode characters. In
these environments, the standard 7-bit character set applies. This set
includes only the C0 and GL character sets and the special
characters represented by hexadecimal values 20 and 7F.
7-Bit Character Set (8-Bit Left Half)
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