Standard Application Example

A typical non-code-banking application with the following memory map:

Memory Area	Address Range	Usage
On-chip RAM	D:0x00–D:0x7F	Registers, bits, variables, stack, ...
External RAM	X:0x0000–X:0x7FFF X:0xF800–X:0xFFFF	Variables too large for on-chip RAM.
ROM	C:0x0000–C:0x7FFF	Program code and constants.

requires the following linker command line:

LX51 PROG.OBJ &
     SEGMENTS ( &
              DATA(D:0x00-D:0x7F), IDATA(I:0x00-I:0x7F), &
              CODE(C:0x0000-C:0x7FFF), &
              XDATA(X:0x0000-X:0x7FFF, X:0xF800-X:0xFFFF) &
              )

Note

The address ranges for the BIT and DATA memory classes in the above linker command line are not required (even though the DATA memory class is specified) since the default settings cover the correct physical address ranges.