#define CMO_64BIT_MACHINE_DOUBLE 40 #define CMO_ARRAY_OF_64BIT_MACHINE_DOUBLE 41 #define CMO_128BIT_MACHINE_DOUBLE 42 #define CMO_ARRAY_OF_128BIT_MACHINE_DOUBLE 43
Group CMObject/MachineDouble requires CMObject/Primitive.
64bit machine double, Array of 64bit machine double 128bit machine double, Array of 128bit machine double CMObject/MachineDouble
#define CMO_IEEE_DOUBLE_FLOAT 51
See IEEE 754 double precision floating-point (64 bit) for the details of float compliant to the IEEE standard.
The internal expression of 256.100006 in the Intel Pentium is
cd 0c 80 43
The internal expression of 256.100006 in the PowerPC (Mac) is 43 80 0c cd . As you have seen in this example, the orders of the bytes are opposite each other. The byte order is specified by the byte order negotiation protocol when the engine starts.