MEMORY {
  HEADER: start = $0000, size = $0010, fill = yes;
  PRG:    start = $0010, size = $1C000, fill = yes;
  PRG7:   start = $1C010, size = $4000, fill = yes;
}
SEGMENTS {
  HEADER: load = HEADER, type = ro;
  PRG:    load = PRG, type = ro;
  PRG7:   load = PRG7, type = ro;
}