diff options
Diffstat (limited to 'utils/sbtools/sb.h')
| -rw-r--r-- | utils/sbtools/sb.h | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/utils/sbtools/sb.h b/utils/sbtools/sb.h index be25b4b..01ee0e6 100644 --- a/utils/sbtools/sb.h +++ b/utils/sbtools/sb.h @@ -52,7 +52,7 @@ struct sb_header_t uint64_t timestamp; /* In microseconds since 2000/1/1 00:00:00 */ struct sb_version_t product_ver; struct sb_version_t component_ver; - uint16_t drive_tag; /* Unknown meaning */ + uint16_t drive_tag; /* first tag to boot ? */ uint8_t rand_pad1[6]; /* Random padding */ } __attribute__((packed)); @@ -84,11 +84,19 @@ struct sb_key_dictionary_entry_t #define SB_INST_CALL 0x5 #define SB_INST_MODE 0x6 +/* flags */ +#define SB_INST_LAST_TAG 1 /* for TAG */ +#define SB_INST_LOAD_DCD 1 /* for LOAD */ +#define SB_INST_FILL_BYTE 0 /* for FILL */ +#define SB_INST_FILL_HWORD 1 /* for FILL */ +#define SB_INST_FILL_WORD 2 /* for FILL */ +#define SB_INST_HAB_EXEC 1 /* for JUMP/CALL */ + struct sb_instruction_header_t { uint8_t checksum; uint8_t opcode; - uint16_t zero_except_for_tag; + uint16_t flags; } __attribute__((packed)); struct sb_instruction_load_t @@ -114,3 +122,11 @@ struct sb_instruction_call_t uint32_t zero; uint32_t arg; } __attribute__((packed)); + +struct sb_instruction_tag_t +{ + struct sb_instruction_header_t hdr; + uint32_t identifier; /* section identifier */ + uint32_t len; /* length of the section */ + uint32_t flags; /* section flags */ +} __attribute__((packed)); |