NAME
    AllocAbs -- allocate at a given location

SYNOPSIS
    memoryBlock = AllocAbs(byteSize, location)
    D0                     D0        A1

    void *AllocAbs(ULONG, APTR);

FUNCTION
    This function attempts to allocate memory at a given absolute
    memory location.  Often this is used by boot-surviving entities
    such as recoverable ram-disks.  If the memory is already being
    used, or if there is not enough memory to satisfy the request,
    AllocAbs will return NULL.

    This block may not be exactly the same as the requested block
    because of rounding, but if the return value is non-zero, the block
    is guaranteed to contain the requested range.

INPUTS
    byteSize - the size of the desired block in bytes
               This number is rounded up to the next larger
               block size for the actual allocation.
    location - the address where the memory MUST be.


RESULT
    memoryBlock - a pointer to the newly allocated memory block, or
                  NULL if failed.

NOTE
    If the free list is corrupt, the system will panic with alert
    AN_MemCorrupt, $01000005.

    The 8 bytes past the end of an AllocAbs will be changed by Exec
    relinking the next block of memory.  Generally you can't trust
    the first 8 bytes of anything you AllocAbs.

SEE ALSO
    AllocMem, FreeMem