INT 31 P - DPMIsee DOS Protected-Mode Interface 0.9+ - ALLOCATE MEMORY BLOCK AX = 0501h BX:CX = size in bytes Return: CF clear if successful BX:CX = linear address of block SI:DI = memory block handle for resizing and freeing block CF set on error AX = error code (DPMIsee DOS Protected-Mode Interface 1.0+) (8012h-8014h,8016h,8021h)(see #03143) Notes: no selectors are allocated the memory block is allocated unlocked (can be locked with AX=0600h) allocations are often page granular (see AX=0604h) under MS Windows 3.10 Enhanced mode with paging enabled, it is possible for this function to fail even if AX=0500h indicates that enough memory is available SeeAlso: AX=0000h,AX=0100h,AX=0500h,AX=0502h,AX=0503h,AX=0504h,AX=0D00h SeeAlso: INT 2F/AX=FB42h/BX=0002h