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.

1 files changed, 1 insertions, 2 deletions

diff --git a/py/objdict.c b/py/objdict.c
index da1b5b9f5b..0d4a60a9ea 100644
--- a/py/objdict.c
+++ b/py/objdict.c
@@ -38,8 +38,7 @@ static void dict_print(void (*print)(void *env, const char *fmt, ...), void *env
     print(env, "}");
 }
 
-// args are reverse in the array
-static mp_obj_t dict_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args) {
+static mp_obj_t dict_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
     // TODO create from an iterable!
     return rt_build_map(0);
 }