Int 21 Fn 25C2  P - Phar Lap 386/dos-extender - Modify Ms-dos Memory Bloc  [E]

   AX = 25C2h
   BX = new requested block size in paragraphs
   CX = real-mode paragraph address of memory block to modify

Return: CF clear if successful
       EAX destroyed
   CF set on error
       AX = error code
       07h MS-DOS memory control blocks destroyed
       08h insufficient memory
       09h invalid memory block address in CX
       BX = size in paragraphs of largest available memory block

See Also: AX=25C0h,AX=25C1h