Z88 Developers' Notes
Contents   Contents of System Calls

OZ_Mgb, get memory binding

CALL $0057

IN: 

    C = memory segment specifier (MS_S0, MS_S1, MS_S2 & MS_S3)

OUT, always successful: 

    B = bank bound in segment

Registers changed after return:

    AF.CDEHL/IXIY same
    ..B...../.... different

Notes:

        New API introduced in OZ V4.1
        Get current Bank binding for specified segment MS_Sx, defined in C.
        This is the functional equivalent of OS_MGB, but much faster.

Related calls:

OS_Bix, Bind in extended address
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_Mpb, set new bank binding in segment