I have a question about API getAvailableMemory

[BirdKing]

Hello,
I have a question about API getAvailableMemory in JC304.
The API has three parameters: a short array, offset and memoryType. The short array is used to store 32 bits number. My question is: the 32 bits number is an unsigned number? And how to calculate the total memory? total memory = array[0]*array[1] or total memory = array[0]*32767 + array[1] ?

[DaHuFa]

First, in Java, there is no unsigned number. So it must be a signed number.
Second, array indicates a big number. conjecture according to general carry, it should be total memory = array[0]*32767 + array[1].