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39 | |
40 | #include <private/qv4bytecodehandler_p.h> |
41 | |
42 | QT_USE_NAMESPACE |
43 | using namespace QV4; |
44 | using namespace Moth; |
45 | |
46 | ByteCodeHandler::~ByteCodeHandler() |
47 | { |
48 | } |
49 | |
50 | #define DISPATCH_INSTRUCTION(name, nargs, ...) \ |
51 | generate_##name( \ |
52 | __VA_ARGS__ \ |
53 | ); |
54 | |
55 | #define DECODE_AND_DISPATCH(instr) \ |
56 | { \ |
57 | INSTR_##instr(MOTH_DECODE_WITH_BASE) \ |
58 | Q_UNUSED(base_ptr); \ |
59 | _currentOffset = _nextOffset; \ |
60 | _nextOffset = code - start; \ |
61 | if (startInstruction(Instr::Type::instr) == ProcessInstruction) { \ |
62 | INSTR_##instr(DISPATCH) \ |
63 | endInstruction(Instr::Type::instr); \ |
64 | } \ |
65 | continue; \ |
66 | } |
67 | |
68 | void ByteCodeHandler::decode(const char *code, uint len) |
69 | { |
70 | MOTH_JUMP_TABLE; |
71 | |
72 | const char *start = code; |
73 | const char *end = code + len; |
74 | while (code < end) { |
75 | MOTH_DISPATCH() |
76 | |
77 | FOR_EACH_MOTH_INSTR(DECODE_AND_DISPATCH) |
78 | } |
79 | } |
80 | |
81 | #undef DECODE_AND_DISPATCH |
82 | #undef DISPATCH_INSTRUCTION |
83 | |