MEMORY { rom : ORIGIN = 0x00000000, LENGTH = 0x00008000 sram : ORIGIN = 0x10000000, LENGTH = 0x00001000 main_ram : ORIGIN = 0xc0000000, LENGTH = 0x02000000 csr : ORIGIN = 0xf0000000, LENGTH = 0x00010000 emulator_ram : ORIGIN = 0x20000000, LENGTH = 0x00004000 }