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Internal operating system usage.
OS_Bix and OS_Box are called from GN_ or OS_ 2 byte calls. Binds in extended or local address, identified by BHL (B=0 local) into segment 1. The (offset) address is automatically forced to segment 1, if necessary. If the address already are in segment 1 or 0, no binding occur (the bindings are still returned in DE). B = 0 always returned to indicate a local address in segment 1 or segment 0.
If request address was in segment 3 then segment 2 was not affected.
Related calls
OS_Box, restore bindings after OS_Bix
OS_Fc, select fast code (fast bank switching)
OS_Mal, allocate memory
OS_Mcl, close memory (free memory pool)
OS_Mfr, free (previously allocated block) memory
OS_Mgb, get current bank binding in segment
OS_Mop, open memory (allocate memory pool)
OS_Mpb, set new bank binding in segment
OZ_Mgb, get current bank binding in segment
OZ_Mpb, set new bank binding in segment