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NAME
- TypeOfMem
-
determine attributes of a given memory address
SYNOPSIS
attributes = TypeOfMem(address)
D0 A1
ULONG TypeOfMem(void *);
D0 A1
ULONG TypeOfMem(void *);
FUNCTION
Given a RAM memory address, search the system memory lists and return its memory attributes. The memory attributes are similar to those specified when the memory was first allocated: (eg. MEMF_CHIP and MEMF_FAST).
This function is usually used to determine if a particular block of memory is within CHIP space.
If the address is not in known-space, a zero will be returned. (Anything that is not RAM, like the ROM or expansion area, will return zero. Also the first few bytes of a memory area are used up by the MemHeader.)
This function is usually used to determine if a particular block of memory is within CHIP space.
If the address is not in known-space, a zero will be returned. (Anything that is not RAM, like the ROM or expansion area, will return zero. Also the first few bytes of a memory area are used up by the MemHeader.)
INPUTS
- address
-
a memory address
RESULT
- attributes
-
a long word of memory attribute flags. If the address is not in known RAM, zero is returned.
WARNING
Memory allocation and deallocation as well as querying how much memory is available requires a Task or, by extension, a Process. None of the exec kernel memory management operations is safe to call from interrupt code!