10.3.2.2 Program Region
program (xr) : ORIGIN = 0x100, LENGTH = 0x17F00The program region corresponds to the Flash memory of the dsPIC30F3014 device that is available for user code, library code and constants. The starting address of region program is 0x100. This is the first location in Flash that is available for general use. Addresses below 0x100 are reserved for the Reset instruction and the two vector tables.
Note: Instruction words in most DSC devices are 24 bits, or 3 bytes,
wide. However, the PC increments by 2 for each instruction word for compatibility with data
memory. Address and lengths in program memory are expressed in PC units.
Note: The linker will automatically try to allocate program text into
any region that has the (
xr) flags; usually this region is named
program. If a custom linker script partitions memory and you wish to control the
allocation, removing the x flag will prevent the linker from allocating
program text to that region.