MEMORY {
            ZP:     start = $00,    size = $100,    type = rw, file = "";
            RAM:    start = $200,   size = $400,    type = rw, file = "";
            PRG:    start = $8000,  size = $8000,   type = rw, file = %O;
       }
       
SEGMENTS {
            ZEROPAGE:   load = ZP,  type = zp;
            BSS:        load = RAM, type = bss, define = yes;
            CODE:       load = PRG, type = rw, start = $8000;
         }