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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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6
py/objint.c
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@@ -12,7 +12,9 @@
// This dispatcher function is expected to be independent of the implementation
// of long int
static mp_obj_t int_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args) {
static mp_obj_t int_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
// TODO check n_kw == 0
switch (n_args) {
case 0:
return MP_OBJ_NEW_SMALL_INT(0);
@@ -28,7 +30,7 @@ static mp_obj_t int_make_new(mp_obj_t type_in, int n_args, const mp_obj_t *args)
case 2:
// should be a string, parse it
// TODO proper error checking of argument types
return MP_OBJ_NEW_SMALL_INT(strtonum(qstr_str(mp_obj_get_qstr(args[1])), mp_obj_get_int(args[0])));
return MP_OBJ_NEW_SMALL_INT(strtonum(qstr_str(mp_obj_get_qstr(args[0])), mp_obj_get_int(args[1])));
default:
nlr_jump(mp_obj_new_exception_msg_1_arg(MP_QSTR_TypeError, "int takes at most 2 arguments, %d given", (void*)(machine_int_t)n_args));