8-Byte Scalars

Scalars of type

signed long long
and unsigned long long

are stored using eight bytes (64 bits) in little endian (default) or big endian (if the BIGENDIAN compiler directive is specified).

Little Endian (default)

When configured for little endian, the low-order byte is stored first, followed by the high-order byte. For example, an integer value of 0x123456789ABCDEF0 is stored in memory as follows:

Address Offset	+0	+1	+2	+3	+4	+5	+6	+7
Contents	0xF0	0xDE	0xBC	0x9A	0x78	0x56	0x34	0x12

Big Endian

When configured for big endian, the high-order byte is stored first, followed by the low-order byte. For example, an integer value of 0x12345678 is stored in memory as follows:

Address Offset	+0	+1	+2	+3	+4	+5	+6	+7
Contents	0x12	0x34	0x56	0x78	0x9A	0xBC	0xDE	0xF0