mirror of https://github.com/arendst/Tasmota.git
97 lines
2.6 KiB
Plaintext
Executable File
97 lines
2.6 KiB
Plaintext
Executable File
-------------------------------------------------------------------------------
|
|
-- the Berry's bytecode file structure (version 1)
|
|
--
|
|
-- description
|
|
--
|
|
-- a double dash ('--') start a line comment.
|
|
-- a: n means that the size of entity 'a' is 'n' bytes.
|
|
-- 'a: .n means that the size of entity 'a' is 'n' bits.
|
|
-- a:
|
|
-- b means that the entity 'a' is realized by the 'b' structure.
|
|
-- a:
|
|
-- b
|
|
-- c 'b' and 'c' are arranged in a compact order (one byte alignment).
|
|
-- [a] means that structure 'a' can be repeated 0 to any times.
|
|
-- [a](b) means that structure 'a' can be repeated 'b' times.
|
|
-- a | b means that the entity can be implemented by structure 'a' or 'b'.
|
|
-- a -> b is equivalent to 'a:
|
|
-- b'.
|
|
-- only the first entity is a file entity (the root).
|
|
-------------------------------------------------------------------------------
|
|
|
|
bytecode_file: -- little endian
|
|
header
|
|
global_desc
|
|
main_function
|
|
|
|
header: 8
|
|
magic_number: 3 -- 0xbecdfe (berry code file)
|
|
version: 1 -- update with file structure definition
|
|
integer_size: .1
|
|
float_size: .1
|
|
-- reserved space
|
|
|
|
main_function -> function
|
|
|
|
global_desc:
|
|
builtin_count: 4
|
|
global_count: 4
|
|
global_name -> [
|
|
string
|
|
](global_count)
|
|
|
|
function:
|
|
information:
|
|
function_name:
|
|
string
|
|
source:
|
|
string
|
|
argc: 1 -- arguments count
|
|
nstack: 1 -- number of stack size by this function
|
|
extra: 2 -- extra data
|
|
bytecode:
|
|
code_size: 4
|
|
code_array -> [ -- bytecode array
|
|
instruction: 4
|
|
](code_size)
|
|
constant_table:
|
|
constant_count: 4
|
|
[constant_value](constant_count)
|
|
proto_table:
|
|
proto_count: 4
|
|
[function](proto_count)
|
|
upval_table:
|
|
upval_count: 1
|
|
upvals -> [
|
|
instack: 1
|
|
index: 1
|
|
](upval_count)
|
|
debug_info:
|
|
-- reserved
|
|
|
|
constant_value:
|
|
type: 1 -- type of value
|
|
integer | float | string | class
|
|
|
|
string:
|
|
string_size: 2
|
|
byte_array: string_size
|
|
|
|
class:
|
|
class_name:
|
|
string
|
|
member_count: 4 -- number of member variables
|
|
method_count: 4 -- number of method
|
|
method_table -> [
|
|
string -- method name
|
|
function -- method function body
|
|
](method_count)
|
|
member_index_table -> [
|
|
string -- member name
|
|
](member_count)
|
|
|
|
nil: 1
|
|
boolean: 1
|
|
integer: 4 or 8
|
|
float: 4 or 8
|