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-rw-r--r--py/objgenerator.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/py/objgenerator.c b/py/objgenerator.c
index 7c364a7b2a..9d16d2bee0 100644
--- a/py/objgenerator.c
+++ b/py/objgenerator.c
@@ -57,15 +57,14 @@ STATIC mp_obj_t gen_wrap_call(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw
mp_obj_fun_bc_t *self_fun = (mp_obj_fun_bc_t*)self->fun;
assert(MP_OBJ_IS_TYPE(self_fun, &mp_type_fun_bc));
- const byte *bytecode = self_fun->bytecode;
- // get code info size, and skip the line number table
- mp_uint_t code_info_size = bytecode[0] | (bytecode[1] << 8) | (bytecode[2] << 16) | (bytecode[3] << 24);
- bytecode += code_info_size;
+ // skip code-info block
+ const byte *code_info = self_fun->bytecode;
+ mp_uint_t code_info_size = mp_decode_uint(&code_info);
+ const byte *ip = self_fun->bytecode + code_info_size;
// bytecode prelude: get state size and exception stack size
- mp_uint_t n_state = bytecode[0] | (bytecode[1] << 8);
- mp_uint_t n_exc_stack = bytecode[2] | (bytecode[3] << 8);
- bytecode += 4;
+ mp_uint_t n_state = mp_decode_uint(&ip);
+ mp_uint_t n_exc_stack = mp_decode_uint(&ip);
// allocate the generator object, with room for local stack and exception stack
mp_obj_gen_instance_t *o = m_new_obj_var(mp_obj_gen_instance_t, byte,
@@ -74,7 +73,7 @@ STATIC mp_obj_t gen_wrap_call(mp_obj_t self_in, mp_uint_t n_args, mp_uint_t n_kw
o->globals = self_fun->globals;
o->code_state.n_state = n_state;
- o->code_state.ip = bytecode;
+ o->code_state.ip = ip;
mp_setup_code_state(&o->code_state, self_fun, n_args, n_kw, args);
return o;
}