A = 1, for fast bank switching
DE = address to copy code into
HL = 0, for code to terminate with RET
HL <> 0, for code to terminate with JP (HL)
C = segment for bank switching (MS_Sx)
Fc = 0
Registers changed after return:
The OS_Fc fast bank switching code has now been established.
Subsequent calls to OS_Fc with:
A = bank to bind to segment specified by OS_Fc initialization
OS_Fc has only been implemented with the above bank switching routine.
OZ V4.1 and newer: Applications should use OZ_Mpb - which is a RST 30H with same API as OS_Mpb. All system code in OZ V4.1 and newer uses OZ_Mpb for optimal bank switching speed. Applications using OZ_Mpb are able to run only in OZ V4.1 and newer.
OS_Bix, Bind in extended address
OS_Box, restore bindings after OS_Bix
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