Make VM stack grow upwards, and so no reversed args arrays.

Change state layout in VM so the stack starts at state[0] and grows
upwards.  Locals are at the top end of the state and number downwards.
This cleans up a lot of the interface connecting the VM to C: now all
functions that take an array of Micro Python objects are in order (ie no
longer in reverse).

Also clean up C API with keyword arguments (call_n and call_n_kw
replaced with single call method that takes keyword arguments).  And now
make_new takes keyword arguments.

emitnative.c has not yet been changed to comply with the new order of
stack layout.
This commit is contained in:
Damien George
2014-01-18 14:10:48 +00:00
parent 8655065f8c
commit 20006dbba9
28 changed files with 325 additions and 372 deletions

View File

@@ -20,15 +20,12 @@ static mp_obj_t enumerate_iternext(mp_obj_t self_in);
/* TODO: enumerate is one of the ones that can take args or kwargs.
Sticking to args for now */
static mp_obj_t enumerate_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args) {
/* NOTE: args are backwards */
static mp_obj_t enumerate_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
assert(n_args > 0);
args += n_args - 1;
mp_obj_enumerate_t *o = m_new_obj(mp_obj_enumerate_t);
o->base.type = &enumerate_type;
o->iter = rt_getiter(args[0]);
o->cur = n_args > 1 ? mp_obj_get_int(args[-1]) : 0;
o->cur = n_args > 1 ? mp_obj_get_int(args[1]) : 0;
return o;
}