typedef struct {
   char sbb_version [3];
   char maquina [5];
   char nombre [16];
                   
  unsigned char  caux;
  unsigned char  tipo;
  unsigned char  n_blocks;
  unsigned char  poke_ffff;
  unsigned short clear;
  unsigned short usr;


  }st_head_sbb;



typedef struct {
  char  blockname[16];
  unsigned short ini;
  unsigned short size;
  unsigned short param3;
  unsigned short exec;
  char  type;
  unsigned char  chksum;
  unsigned char  data [0x10000];
  } st_block_sbb;