namespace factor {

static const cell image_magic = 0x0f0e0d0c;
static const cell image_version = 4;

const size_t STRERROR_BUFFER_SIZE = 1024;

struct embedded_image_footer {
  cell magic;
  cell image_offset;
};

struct image_header {
  cell magic;
  cell version;
  /* base address of data heap when image was saved */
  cell data_relocation_base;
  /* size of heap */
  cell data_size;
  /* base address of code heap when image was saved */
  cell code_relocation_base;
  /* size of code heap */
  cell code_size;
  /* tagged pointer to t singleton */
  cell true_object;
  /* tagged pointer to bignum 0 */
  cell bignum_zero;
  /* tagged pointer to bignum 1 */
  cell bignum_pos_one;
  /* tagged pointer to bignum -1 */
  cell bignum_neg_one;
  /* Initial user environment */
  cell special_objects[special_object_count];
};

struct vm_parameters {
  bool embedded_image;
  const vm_char* image_path;
  const vm_char* executable_path;
  cell datastack_size, retainstack_size, callstack_size;
  cell young_size, aging_size, tenured_size;
  cell code_size;
  bool fep;
  bool console;
  bool signals;
  cell max_pic_size;
  cell callback_size;
};

}