2D Array in Arduino

[tiofilo75]

I am trying to print a 2D array but for some reason when I print an element higher than 0x7F the serial print appears to overflow. Here is an example:

 I define my array as :
unsigned int BANK[4][2]={{0x00,0x70},{0x01,0x85},{0x01,0x85},{0x00,0xe0}};

if I do a serial print of the second element of each array I will get the following:

70
FFFFFF85
FFFFFF85
FFFFFFE0

I don't know what is going on, why do I get the FFFFFF?  Can anyone please shed some light. Thanks.

[dannyf]

they are being promoted to signed long.

[andersm]

It looks like somewhere the numbers are being interpreted as signed 8-bit numbers, which are then being extended to 32-bit numbers.