OS_Fma, Find Memory for Allocation

Register parameters

RST 20H, DEFW $C406

IN:
	  A = options
        A7 = even bank needed (for segment 0 allocation)
        A6 = fixed memory requested (no subject to swapping)
        A5 = from any slot
		A4 = any offset (generated and returned by call)
        A0-A1 = slot number if A5=0

      H = page offset ($00-$3F; $00 if A4 option set)
      L = number of pages wanted (1 to 64)

OUT:  Fc = 0
         L = 0, always 
         Available memory found at pointer BHL
      Fc = 1, A = RC_Room if not enough space in slot(s)

Registers changed after return:
     ....DEH./IXIY same
     AFBC...L/.... different

Notes

This call tells application in which bank the explicit memory area requested is free for allocation. Refer to explicit memory allocation for further informations. This system call is only available in OZ release V4.6 and newer.

Related calls

OS_Axm, Allocate explicit memory
OS_Axp, Allocate explicit page
OS_Bix, Bind in extended address
OS_Box, Restore bindings after OS_Bix
OS_Fc, Select fast code (fast bank switching)
OS_Fxm, Free explicit memory
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