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

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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
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7
py/objzip.c
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@@ -12,13 +12,14 @@ typedef struct _mp_obj_zip_t {
mp_obj_t iters[];
} mp_obj_zip_t;
static mp_obj_t zip_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args) {
/* NOTE: args are backwards */
static mp_obj_t zip_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
// TODO check n_kw == 0
mp_obj_zip_t *o = m_new_obj_var(mp_obj_zip_t, mp_obj_t, n_args);
o->base.type = &zip_type;
o->n_iters = n_args;
for (int i = 0; i < n_args; i++) {
o->iters[i] = rt_getiter(args[n_args-i-1]);
o->iters[i] = rt_getiter(args[i]);
}
return o;
}