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-rw-r--r--py/emit.h2
-rw-r--r--py/objlist.c16
-rw-r--r--py/vm.c2
3 files changed, 18 insertions, 2 deletions
diff --git a/py/emit.h b/py/emit.h
index ea65731038..66e87fd4c6 100644
--- a/py/emit.h
+++ b/py/emit.h
@@ -5,7 +5,7 @@
* is not known until the end of pass 1.
* As a consequence, we don't know the maximum stack size until the end of pass 2.
* This is problematic for some emitters (x64) since they need to know the maximum
- * stack size to compile the entry to the function, and this effects code size.
+ * stack size to compile the entry to the function, and this affects code size.
*/
typedef enum {
diff --git a/py/objlist.c b/py/objlist.c
index dc7ff3e176..02a6b1525b 100644
--- a/py/objlist.c
+++ b/py/objlist.c
@@ -235,6 +235,20 @@ static mp_obj_t list_remove(mp_obj_t self_in, mp_obj_t value) {
return mp_const_none;
}
+static mp_obj_t list_reverse(mp_obj_t self_in) {
+ assert(MP_OBJ_IS_TYPE(self_in, &list_type));
+ mp_obj_list_t *self = self_in;
+
+ int len = self->len;
+ for (int i = 0; i < len/2; i++) {
+ mp_obj_t *a = self->items[i];
+ self->items[i] = self->items[len-i-1];
+ self->items[len-i-1] = a;
+ }
+
+ return mp_const_none;
+}
+
static MP_DEFINE_CONST_FUN_OBJ_2(list_append_obj, mp_obj_list_append);
static MP_DEFINE_CONST_FUN_OBJ_1(list_clear_obj, list_clear);
static MP_DEFINE_CONST_FUN_OBJ_1(list_copy_obj, list_copy);
@@ -243,6 +257,7 @@ static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(list_index_obj, 2, 4, list_index);
static MP_DEFINE_CONST_FUN_OBJ_3(list_insert_obj, list_insert);
static MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(list_pop_obj, 1, 2, list_pop);
static MP_DEFINE_CONST_FUN_OBJ_2(list_remove_obj, list_remove);
+static MP_DEFINE_CONST_FUN_OBJ_1(list_reverse_obj, list_reverse);
static MP_DEFINE_CONST_FUN_OBJ_2(list_sort_obj, list_sort);
const mp_obj_type_t list_type = {
@@ -262,6 +277,7 @@ const mp_obj_type_t list_type = {
{ "insert", &list_insert_obj },
{ "pop", &list_pop_obj },
{ "remove", &list_remove_obj },
+ { "reverse", &list_reverse_obj },
{ "sort", &list_sort_obj },
{ NULL, NULL }, // end-of-list sentinel
},
diff --git a/py/vm.c b/py/vm.c
index 8e7ef7485b..5e3ec0baf8 100644
--- a/py/vm.c
+++ b/py/vm.c
@@ -106,7 +106,7 @@ bool mp_execute_byte_code_2(const byte **ip_in_out, mp_obj_t *fastn, mp_obj_t **
case MP_BC_LOAD_CONST_SMALL_INT:
unum = (ip[0] | (ip[1] << 8) | (ip[2] << 16)) - 0x800000;
ip += 3;
- PUSH((mp_obj_t)(unum << 1 | 1));
+ PUSH(MP_OBJ_NEW_SMALL_INT(unum));
break;
case MP_BC_LOAD_CONST_DEC: