py/objfun.c - lite/micropython - Linaro Git Browser

 /*
  * This file is part of the MicroPython project, http://micropython.org/
  *
  * The MIT License (MIT)
  *
  * Copyright (c) 2013, 2014 Damien P. George
  * Copyright (c) 2014 Paul Sokolovsky
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
  * in the Software without restriction, including without limitation the rights
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
  *
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
  *
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  * THE SOFTWARE.
  */

 #include <string.h>
 #include <assert.h>

 #include "py/objtuple.h"
 #include "py/objfun.h"
 #include "py/runtime.h"
 #include "py/bc.h"
 #include "py/stackctrl.h"

 #if MICROPY_DEBUG_VERBOSE // print debugging info
 #define DEBUG_PRINT (1)
 #else // don't print debugging info
 #define DEBUG_PRINT (0)
 #define DEBUG_printf(...) (void)0
 #endif

 // Note: the "name" entry in mp_obj_type_t for a function type must be
 // MP_QSTR_function because it is used to determine if an object is of generic
 // function type.

 /******************************************************************************/
 /* builtin functions                                                          */

 STATIC mp_obj_t fun_builtin_0_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     (void)args;
     assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_0));
     mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
     mp_arg_check_num(n_args, n_kw, 0, 0, false);
     return self->fun._0();
 }

 const mp_obj_type_t mp_type_fun_builtin_0 = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_builtin_0_call,
     .unary_op = mp_generic_unary_op,
 };

 STATIC mp_obj_t fun_builtin_1_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_1));
     mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
     mp_arg_check_num(n_args, n_kw, 1, 1, false);
     return self->fun._1(args[0]);
 }

 const mp_obj_type_t mp_type_fun_builtin_1 = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_builtin_1_call,
     .unary_op = mp_generic_unary_op,
 };

 STATIC mp_obj_t fun_builtin_2_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_2));
     mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
     mp_arg_check_num(n_args, n_kw, 2, 2, false);
     return self->fun._2(args[0], args[1]);
 }

 const mp_obj_type_t mp_type_fun_builtin_2 = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_builtin_2_call,
     .unary_op = mp_generic_unary_op,
 };

 STATIC mp_obj_t fun_builtin_3_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_3));
     mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
     mp_arg_check_num(n_args, n_kw, 3, 3, false);
     return self->fun._3(args[0], args[1], args[2]);
 }

 const mp_obj_type_t mp_type_fun_builtin_3 = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_builtin_3_call,
     .unary_op = mp_generic_unary_op,
 };

 STATIC mp_obj_t fun_builtin_var_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_var));
     mp_obj_fun_builtin_var_t *self = MP_OBJ_TO_PTR(self_in);

     // check number of arguments
     mp_arg_check_num(n_args, n_kw, self->n_args_min, self->n_args_max, self->is_kw);

     if (self->is_kw) {
         // function allows keywords

         // we create a map directly from the given args array
         mp_map_t kw_args;
         mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);

         return self->fun.kw(n_args, args, &kw_args);

     } else {
         // function takes a variable number of arguments, but no keywords

         return self->fun.var(n_args, args);
     }
 }

 const mp_obj_type_t mp_type_fun_builtin_var = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_builtin_var_call,
     .unary_op = mp_generic_unary_op,
 };

 /******************************************************************************/
 /* byte code functions                                                        */

 qstr mp_obj_code_get_name(const byte *code_info) {
     code_info = mp_decode_uint_skip(code_info); // skip code_info_size entry
     #if MICROPY_PERSISTENT_CODE
     return code_info[0] | (code_info[1] << 8);
     #else
     return mp_decode_uint_value(code_info);
     #endif
 }

 #if MICROPY_EMIT_NATIVE
 STATIC const mp_obj_type_t mp_type_fun_native;
 #endif

 qstr mp_obj_fun_get_name(mp_const_obj_t fun_in) {
     const mp_obj_fun_bc_t *fun = MP_OBJ_TO_PTR(fun_in);
     #if MICROPY_EMIT_NATIVE
     if (fun->base.type == &mp_type_fun_native) {
         // TODO native functions don't have name stored
         return MP_QSTR_;
     }
     #endif

     const byte *bc = fun->bytecode;
     bc = mp_decode_uint_skip(bc); // skip n_state
     bc = mp_decode_uint_skip(bc); // skip n_exc_stack
     bc++; // skip scope_params
     bc++; // skip n_pos_args
     bc++; // skip n_kwonly_args
     bc++; // skip n_def_pos_args
     return mp_obj_code_get_name(bc);
 }

 #if MICROPY_CPYTHON_COMPAT
 STATIC void fun_bc_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
     (void)kind;
     mp_obj_fun_bc_t *o = MP_OBJ_TO_PTR(o_in);
     mp_printf(print, "<function %q at 0x%p>", mp_obj_fun_get_name(o_in), o);
 }
 #endif

 #if DEBUG_PRINT
 STATIC void dump_args(const mp_obj_t *a, size_t sz) {
     DEBUG_printf("%p: ", a);
     for (size_t i = 0; i < sz; i++) {
         DEBUG_printf("%p ", a[i]);
     }
     DEBUG_printf("\n");
 }
 #else
 #define dump_args(...) (void)0
 #endif

 // With this macro you can tune the maximum number of function state bytes
 // that will be allocated on the stack.  Any function that needs more
 // than this will try to use the heap, with fallback to stack allocation.
 #define VM_MAX_STATE_ON_STACK (11 * sizeof(mp_uint_t))

 // Set this to 1 to enable a simple stack overflow check.
 #define VM_DETECT_STACK_OVERFLOW (0)

 #define DECODE_CODESTATE_SIZE(bytecode, n_state_out_var, state_size_out_var) \
     { \
         /* bytecode prelude: state size and exception stack size */               \
         n_state_out_var = mp_decode_uint_value(bytecode);                         \
         size_t n_exc_stack = mp_decode_uint_value(mp_decode_uint_skip(bytecode)); \
                                                                                   \
         n_state += VM_DETECT_STACK_OVERFLOW;                                      \
                                                                                   \
         /* state size in bytes */                                                 \
         state_size_out_var = n_state * sizeof(mp_obj_t) + n_exc_stack * sizeof(mp_exc_stack_t); \
     }

 #define INIT_CODESTATE(code_state, _fun_bc, n_args, n_kw, args) \
     code_state->fun_bc = _fun_bc; \
     code_state->ip = 0; \
     mp_setup_code_state(code_state, n_args, n_kw, args); \
     code_state->old_globals = mp_globals_get();

 #if MICROPY_STACKLESS
 mp_code_state_t *mp_obj_fun_bc_prepare_codestate(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     MP_STACK_CHECK();
     mp_obj_fun_bc_t *self = MP_OBJ_TO_PTR(self_in);

     size_t n_state, state_size;
     DECODE_CODESTATE_SIZE(self->bytecode, n_state, state_size);

     mp_code_state_t *code_state;
     #if MICROPY_ENABLE_PYSTACK
     code_state = mp_pystack_alloc(sizeof(mp_code_state_t) + state_size);
     #else
     // If we use m_new_obj_var(), then on no memory, MemoryError will be
     // raised. But this is not correct exception for a function call,
     // RuntimeError should be raised instead. So, we use m_new_obj_var_maybe(),
     // return NULL, then vm.c takes the needed action (either raise
     // RuntimeError or fallback to stack allocation).
     code_state = m_new_obj_var_maybe(mp_code_state_t, byte, state_size);
     if (!code_state) {
         return NULL;
     }
     #endif

     INIT_CODESTATE(code_state, self, n_args, n_kw, args);

     // execute the byte code with the correct globals context
     mp_globals_set(self->globals);

     return code_state;
 }
 #endif

 STATIC mp_obj_t fun_bc_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     MP_STACK_CHECK();

     DEBUG_printf("Input n_args: " UINT_FMT ", n_kw: " UINT_FMT "\n", n_args, n_kw);
     DEBUG_printf("Input pos args: ");
     dump_args(args, n_args);
     DEBUG_printf("Input kw args: ");
     dump_args(args + n_args, n_kw * 2);
     mp_obj_fun_bc_t *self = MP_OBJ_TO_PTR(self_in);
     DEBUG_printf("Func n_def_args: %d\n", self->n_def_args);

     size_t n_state, state_size;
     DECODE_CODESTATE_SIZE(self->bytecode, n_state, state_size);

     // allocate state for locals and stack
     mp_code_state_t *code_state = NULL;
     #if MICROPY_ENABLE_PYSTACK
     code_state = mp_pystack_alloc(sizeof(mp_code_state_t) + state_size);
     #else
     if (state_size > VM_MAX_STATE_ON_STACK) {
         code_state = m_new_obj_var_maybe(mp_code_state_t, byte, state_size);
     }
     if (code_state == NULL) {
         code_state = alloca(sizeof(mp_code_state_t) + state_size);
         state_size = 0; // indicate that we allocated using alloca
     }
     #endif

     INIT_CODESTATE(code_state, self, n_args, n_kw, args);

     // execute the byte code with the correct globals context
     mp_globals_set(self->globals);
     mp_vm_return_kind_t vm_return_kind = mp_execute_bytecode(code_state, MP_OBJ_NULL);
     mp_globals_set(code_state->old_globals);

 #if VM_DETECT_STACK_OVERFLOW
     if (vm_return_kind == MP_VM_RETURN_NORMAL) {
         if (code_state->sp < code_state->state) {
             printf("VM stack underflow: " INT_FMT "\n", code_state->sp - code_state->state);
             assert(0);
         }
     }
     // We can't check the case when an exception is returned in state[n_state - 1]
     // and there are no arguments, because in this case our detection slot may have
     // been overwritten by the returned exception (which is allowed).
     if (!(vm_return_kind == MP_VM_RETURN_EXCEPTION && self->n_pos_args + self->n_kwonly_args == 0)) {
         // Just check to see that we have at least 1 null object left in the state.
         bool overflow = true;
         for (size_t i = 0; i < n_state - self->n_pos_args - self->n_kwonly_args; i++) {
             if (code_state->state[i] == MP_OBJ_NULL) {
                 overflow = false;
                 break;
             }
         }
         if (overflow) {
             printf("VM stack overflow state=%p n_state+1=" UINT_FMT "\n", code_state->state, n_state);
             assert(0);
         }
     }
 #endif

     mp_obj_t result;
     if (vm_return_kind == MP_VM_RETURN_NORMAL) {
         // return value is in *sp
         result = *code_state->sp;
     } else {
         // must be an exception because normal functions can't yield
         assert(vm_return_kind == MP_VM_RETURN_EXCEPTION);
         // return value is in fastn[0]==state[n_state - 1]
         result = code_state->state[n_state - 1];
     }

     #if MICROPY_ENABLE_PYSTACK
     mp_pystack_free(code_state);
     #else
     // free the state if it was allocated on the heap
     if (state_size != 0) {
         m_del_var(mp_code_state_t, byte, state_size, code_state);
     }
     #endif

     if (vm_return_kind == MP_VM_RETURN_NORMAL) {
         return result;
     } else { // MP_VM_RETURN_EXCEPTION
         nlr_raise(result);
     }
 }

 #if MICROPY_PY_FUNCTION_ATTRS
 STATIC void fun_bc_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
     if (dest[0] != MP_OBJ_NULL) {
         // not load attribute
         return;
     }
     if (attr == MP_QSTR___name__) {
         dest[0] = MP_OBJ_NEW_QSTR(mp_obj_fun_get_name(self_in));
     }
 }
 #endif

 const mp_obj_type_t mp_type_fun_bc = {
     { &mp_type_type },
     .name = MP_QSTR_function,
 #if MICROPY_CPYTHON_COMPAT
     .print = fun_bc_print,
 #endif
     .call = fun_bc_call,
     .unary_op = mp_generic_unary_op,
 #if MICROPY_PY_FUNCTION_ATTRS
     .attr = fun_bc_attr,
 #endif
 };

 mp_obj_t mp_obj_new_fun_bc(mp_obj_t def_args_in, mp_obj_t def_kw_args, const byte *code, const mp_uint_t *const_table) {
     size_t n_def_args = 0;
     size_t n_extra_args = 0;
     mp_obj_tuple_t *def_args = MP_OBJ_TO_PTR(def_args_in);
     if (def_args_in != MP_OBJ_NULL) {
         assert(MP_OBJ_IS_TYPE(def_args_in, &mp_type_tuple));
         n_def_args = def_args->len;
         n_extra_args = def_args->len;
     }
     if (def_kw_args != MP_OBJ_NULL) {
         n_extra_args += 1;
     }
     mp_obj_fun_bc_t *o = m_new_obj_var(mp_obj_fun_bc_t, mp_obj_t, n_extra_args);
     o->base.type = &mp_type_fun_bc;
     o->globals = mp_globals_get();
     o->bytecode = code;
     o->const_table = const_table;
     if (def_args != NULL) {
         memcpy(o->extra_args, def_args->items, n_def_args * sizeof(mp_obj_t));
     }
     if (def_kw_args != MP_OBJ_NULL) {
         o->extra_args[n_def_args] = def_kw_args;
     }
     return MP_OBJ_FROM_PTR(o);
 }

 /******************************************************************************/
 /* native functions                                                           */

 #if MICROPY_EMIT_NATIVE

 STATIC mp_obj_t fun_native_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     MP_STACK_CHECK();
     mp_obj_fun_bc_t *self = self_in;
     mp_call_fun_t fun = MICROPY_MAKE_POINTER_CALLABLE((void*)self->bytecode);
     return fun(self_in, n_args, n_kw, args);
 }

 STATIC const mp_obj_type_t mp_type_fun_native = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_native_call,
     .unary_op = mp_generic_unary_op,
 };

 mp_obj_t mp_obj_new_fun_native(mp_obj_t def_args_in, mp_obj_t def_kw_args, const void *fun_data, const mp_uint_t *const_table) {
     mp_obj_fun_bc_t *o = mp_obj_new_fun_bc(def_args_in, def_kw_args, (const byte*)fun_data, const_table);
     o->base.type = &mp_type_fun_native;
     return o;
 }

 #endif // MICROPY_EMIT_NATIVE

 /******************************************************************************/
 /* viper functions                                                            */

 #if MICROPY_EMIT_NATIVE

 typedef struct _mp_obj_fun_viper_t {
     mp_obj_base_t base;
     size_t n_args;
     void *fun_data; // GC must be able to trace this pointer
     mp_uint_t type_sig;
 } mp_obj_fun_viper_t;

 typedef mp_uint_t (*viper_fun_0_t)(void);
 typedef mp_uint_t (*viper_fun_1_t)(mp_uint_t);
 typedef mp_uint_t (*viper_fun_2_t)(mp_uint_t, mp_uint_t);
 typedef mp_uint_t (*viper_fun_3_t)(mp_uint_t, mp_uint_t, mp_uint_t);
 typedef mp_uint_t (*viper_fun_4_t)(mp_uint_t, mp_uint_t, mp_uint_t, mp_uint_t);

 STATIC mp_obj_t fun_viper_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     mp_obj_fun_viper_t *self = self_in;

     mp_arg_check_num(n_args, n_kw, self->n_args, self->n_args, false);

     void *fun = MICROPY_MAKE_POINTER_CALLABLE(self->fun_data);

     mp_uint_t ret;
     if (n_args == 0) {
         ret = ((viper_fun_0_t)fun)();
     } else if (n_args == 1) {
         ret = ((viper_fun_1_t)fun)(mp_convert_obj_to_native(args[0], self->type_sig >> 4));
     } else if (n_args == 2) {
         ret = ((viper_fun_2_t)fun)(mp_convert_obj_to_native(args[0], self->type_sig >> 4), mp_convert_obj_to_native(args[1], self->type_sig >> 8));
     } else if (n_args == 3) {
         ret = ((viper_fun_3_t)fun)(mp_convert_obj_to_native(args[0], self->type_sig >> 4), mp_convert_obj_to_native(args[1], self->type_sig >> 8), mp_convert_obj_to_native(args[2], self->type_sig >> 12));
     } else {
         // compiler allows at most 4 arguments
         assert(n_args == 4);
         ret = ((viper_fun_4_t)fun)(
             mp_convert_obj_to_native(args[0], self->type_sig >> 4),
             mp_convert_obj_to_native(args[1], self->type_sig >> 8),
             mp_convert_obj_to_native(args[2], self->type_sig >> 12),
             mp_convert_obj_to_native(args[3], self->type_sig >> 16)
         );
     }

     return mp_convert_native_to_obj(ret, self->type_sig);
 }

 STATIC const mp_obj_type_t mp_type_fun_viper = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_viper_call,
     .unary_op = mp_generic_unary_op,
 };

 mp_obj_t mp_obj_new_fun_viper(size_t n_args, void *fun_data, mp_uint_t type_sig) {
     mp_obj_fun_viper_t *o = m_new_obj(mp_obj_fun_viper_t);
     o->base.type = &mp_type_fun_viper;
     o->n_args = n_args;
     o->fun_data = fun_data;
     o->type_sig = type_sig;
     return o;
 }

 #endif // MICROPY_EMIT_NATIVE

 /******************************************************************************/
 /* inline assembler functions                                                 */

 #if MICROPY_EMIT_INLINE_ASM

 typedef struct _mp_obj_fun_asm_t {
     mp_obj_base_t base;
     size_t n_args;
     void *fun_data; // GC must be able to trace this pointer
     mp_uint_t type_sig;
 } mp_obj_fun_asm_t;

 typedef mp_uint_t (*inline_asm_fun_0_t)(void);
 typedef mp_uint_t (*inline_asm_fun_1_t)(mp_uint_t);
 typedef mp_uint_t (*inline_asm_fun_2_t)(mp_uint_t, mp_uint_t);
 typedef mp_uint_t (*inline_asm_fun_3_t)(mp_uint_t, mp_uint_t, mp_uint_t);
 typedef mp_uint_t (*inline_asm_fun_4_t)(mp_uint_t, mp_uint_t, mp_uint_t, mp_uint_t);

 // convert a MicroPython object to a sensible value for inline asm
 STATIC mp_uint_t convert_obj_for_inline_asm(mp_obj_t obj) {
     // TODO for byte_array, pass pointer to the array
     if (MP_OBJ_IS_SMALL_INT(obj)) {
         return MP_OBJ_SMALL_INT_VALUE(obj);
     } else if (obj == mp_const_none) {
         return 0;
     } else if (obj == mp_const_false) {
         return 0;
     } else if (obj == mp_const_true) {
         return 1;
     } else if (MP_OBJ_IS_TYPE(obj, &mp_type_int)) {
         return mp_obj_int_get_truncated(obj);
     } else if (MP_OBJ_IS_STR(obj)) {
         // pointer to the string (it's probably constant though!)
         size_t l;
         return (mp_uint_t)mp_obj_str_get_data(obj, &l);
     } else {
         mp_obj_type_t *type = mp_obj_get_type(obj);
         if (0) {
 #if MICROPY_PY_BUILTINS_FLOAT
         } else if (type == &mp_type_float) {
             // convert float to int (could also pass in float registers)
             return (mp_int_t)mp_obj_float_get(obj);
 #endif
         } else if (type == &mp_type_tuple || type == &mp_type_list) {
             // pointer to start of tuple (could pass length, but then could use len(x) for that)
             size_t len;
             mp_obj_t *items;
             mp_obj_get_array(obj, &len, &items);
             return (mp_uint_t)items;
         } else {
             mp_buffer_info_t bufinfo;
             if (mp_get_buffer(obj, &bufinfo, MP_BUFFER_WRITE)) {
                 // supports the buffer protocol, return a pointer to the data
                 return (mp_uint_t)bufinfo.buf;
             } else {
                 // just pass along a pointer to the object
                 return (mp_uint_t)obj;
             }
         }
     }
 }

 STATIC mp_obj_t fun_asm_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
     mp_obj_fun_asm_t *self = self_in;

     mp_arg_check_num(n_args, n_kw, self->n_args, self->n_args, false);

     void *fun = MICROPY_MAKE_POINTER_CALLABLE(self->fun_data);

     mp_uint_t ret;
     if (n_args == 0) {
         ret = ((inline_asm_fun_0_t)fun)();
     } else if (n_args == 1) {
         ret = ((inline_asm_fun_1_t)fun)(convert_obj_for_inline_asm(args[0]));
     } else if (n_args == 2) {
         ret = ((inline_asm_fun_2_t)fun)(convert_obj_for_inline_asm(args[0]), convert_obj_for_inline_asm(args[1]));
     } else if (n_args == 3) {
         ret = ((inline_asm_fun_3_t)fun)(convert_obj_for_inline_asm(args[0]), convert_obj_for_inline_asm(args[1]), convert_obj_for_inline_asm(args[2]));
     } else {
         // compiler allows at most 4 arguments
         assert(n_args == 4);
         ret = ((inline_asm_fun_4_t)fun)(
             convert_obj_for_inline_asm(args[0]),
             convert_obj_for_inline_asm(args[1]),
             convert_obj_for_inline_asm(args[2]),
             convert_obj_for_inline_asm(args[3])
         );
     }

     return mp_convert_native_to_obj(ret, self->type_sig);
 }

 STATIC const mp_obj_type_t mp_type_fun_asm = {
     { &mp_type_type },
     .name = MP_QSTR_function,
     .call = fun_asm_call,
     .unary_op = mp_generic_unary_op,
 };

 mp_obj_t mp_obj_new_fun_asm(size_t n_args, void *fun_data, mp_uint_t type_sig) {
     mp_obj_fun_asm_t *o = m_new_obj(mp_obj_fun_asm_t);
     o->base.type = &mp_type_fun_asm;
     o->n_args = n_args;
     o->fun_data = fun_data;
     o->type_sig = type_sig;
     return o;
 }

 #endif // MICROPY_EMIT_INLINE_ASM
	/*
	* This file is part of the MicroPython project, http://micropython.org/
	*
	* The MIT License (MIT)
	*
	* Copyright (c) 2013, 2014 Damien P. George
	* Copyright (c) 2014 Paul Sokolovsky
	*
	* Permission is hereby granted, free of charge, to any person obtaining a copy
	* of this software and associated documentation files (the "Software"), to deal
	* in the Software without restriction, including without limitation the rights
	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	* copies of the Software, and to permit persons to whom the Software is
	* furnished to do so, subject to the following conditions:
	*
	* The above copyright notice and this permission notice shall be included in
	* all copies or substantial portions of the Software.
	*
	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
	* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	* THE SOFTWARE.
	*/

	#include <string.h>
	#include <assert.h>

	#include "py/objtuple.h"
	#include "py/objfun.h"
	#include "py/runtime.h"
	#include "py/bc.h"
	#include "py/stackctrl.h"

	#if MICROPY_DEBUG_VERBOSE // print debugging info
	#define DEBUG_PRINT (1)
	#else // don't print debugging info
	#define DEBUG_PRINT (0)
	#define DEBUG_printf(...) (void)0
	#endif

	// Note: the "name" entry in mp_obj_type_t for a function type must be
	// MP_QSTR_function because it is used to determine if an object is of generic
	// function type.

	/******************************************************************************/
	/* builtin functions */

	STATIC mp_obj_t fun_builtin_0_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	(void)args;
	assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_0));
	mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
	mp_arg_check_num(n_args, n_kw, 0, 0, false);
	return self->fun._0();
	}

	const mp_obj_type_t mp_type_fun_builtin_0 = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_builtin_0_call,
	.unary_op = mp_generic_unary_op,
	};

	STATIC mp_obj_t fun_builtin_1_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_1));
	mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
	mp_arg_check_num(n_args, n_kw, 1, 1, false);
	return self->fun._1(args[0]);
	}

	const mp_obj_type_t mp_type_fun_builtin_1 = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_builtin_1_call,
	.unary_op = mp_generic_unary_op,
	};

	STATIC mp_obj_t fun_builtin_2_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_2));
	mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
	mp_arg_check_num(n_args, n_kw, 2, 2, false);
	return self->fun._2(args[0], args[1]);
	}

	const mp_obj_type_t mp_type_fun_builtin_2 = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_builtin_2_call,
	.unary_op = mp_generic_unary_op,
	};

	STATIC mp_obj_t fun_builtin_3_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_3));
	mp_obj_fun_builtin_fixed_t *self = MP_OBJ_TO_PTR(self_in);
	mp_arg_check_num(n_args, n_kw, 3, 3, false);
	return self->fun._3(args[0], args[1], args[2]);
	}

	const mp_obj_type_t mp_type_fun_builtin_3 = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_builtin_3_call,
	.unary_op = mp_generic_unary_op,
	};

	STATIC mp_obj_t fun_builtin_var_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	assert(MP_OBJ_IS_TYPE(self_in, &mp_type_fun_builtin_var));
	mp_obj_fun_builtin_var_t *self = MP_OBJ_TO_PTR(self_in);

	// check number of arguments
	mp_arg_check_num(n_args, n_kw, self->n_args_min, self->n_args_max, self->is_kw);

	if (self->is_kw) {
	// function allows keywords

	// we create a map directly from the given args array
	mp_map_t kw_args;
	mp_map_init_fixed_table(&kw_args, n_kw, args + n_args);

	return self->fun.kw(n_args, args, &kw_args);

	} else {
	// function takes a variable number of arguments, but no keywords

	return self->fun.var(n_args, args);
	}
	}

	const mp_obj_type_t mp_type_fun_builtin_var = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_builtin_var_call,
	.unary_op = mp_generic_unary_op,
	};

	/******************************************************************************/
	/* byte code functions */

	qstr mp_obj_code_get_name(const byte *code_info) {
	code_info = mp_decode_uint_skip(code_info); // skip code_info_size entry
	#if MICROPY_PERSISTENT_CODE
	return code_info[0] \| (code_info[1] << 8);
	#else
	return mp_decode_uint_value(code_info);
	#endif
	}

	#if MICROPY_EMIT_NATIVE
	STATIC const mp_obj_type_t mp_type_fun_native;
	#endif

	qstr mp_obj_fun_get_name(mp_const_obj_t fun_in) {
	const mp_obj_fun_bc_t *fun = MP_OBJ_TO_PTR(fun_in);
	#if MICROPY_EMIT_NATIVE
	if (fun->base.type == &mp_type_fun_native) {
	// TODO native functions don't have name stored
	return MP_QSTR_;
	}
	#endif

	const byte *bc = fun->bytecode;
	bc = mp_decode_uint_skip(bc); // skip n_state
	bc = mp_decode_uint_skip(bc); // skip n_exc_stack
	bc++; // skip scope_params
	bc++; // skip n_pos_args
	bc++; // skip n_kwonly_args
	bc++; // skip n_def_pos_args
	return mp_obj_code_get_name(bc);
	}

	#if MICROPY_CPYTHON_COMPAT
	STATIC void fun_bc_print(const mp_print_t *print, mp_obj_t o_in, mp_print_kind_t kind) {
	(void)kind;
	mp_obj_fun_bc_t *o = MP_OBJ_TO_PTR(o_in);
	mp_printf(print, "<function %q at 0x%p>", mp_obj_fun_get_name(o_in), o);
	}
	#endif

	#if DEBUG_PRINT
	STATIC void dump_args(const mp_obj_t *a, size_t sz) {
	DEBUG_printf("%p: ", a);
	for (size_t i = 0; i < sz; i++) {
	DEBUG_printf("%p ", a[i]);
	}
	DEBUG_printf("\n");
	}
	#else
	#define dump_args(...) (void)0
	#endif

	// With this macro you can tune the maximum number of function state bytes
	// that will be allocated on the stack. Any function that needs more
	// than this will try to use the heap, with fallback to stack allocation.
	#define VM_MAX_STATE_ON_STACK (11 * sizeof(mp_uint_t))

	// Set this to 1 to enable a simple stack overflow check.
	#define VM_DETECT_STACK_OVERFLOW (0)

	#define DECODE_CODESTATE_SIZE(bytecode, n_state_out_var, state_size_out_var) \
	{ \
	/* bytecode prelude: state size and exception stack size */ \
	n_state_out_var = mp_decode_uint_value(bytecode); \
	size_t n_exc_stack = mp_decode_uint_value(mp_decode_uint_skip(bytecode)); \
	\
	n_state += VM_DETECT_STACK_OVERFLOW; \
	\
	/* state size in bytes */ \
	state_size_out_var = n_state * sizeof(mp_obj_t) + n_exc_stack * sizeof(mp_exc_stack_t); \
	}

	#define INIT_CODESTATE(code_state, _fun_bc, n_args, n_kw, args) \
	code_state->fun_bc = _fun_bc; \
	code_state->ip = 0; \
	mp_setup_code_state(code_state, n_args, n_kw, args); \
	code_state->old_globals = mp_globals_get();

	#if MICROPY_STACKLESS
	mp_code_state_t mp_obj_fun_bc_prepare_codestate(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t args) {
	MP_STACK_CHECK();
	mp_obj_fun_bc_t *self = MP_OBJ_TO_PTR(self_in);

	size_t n_state, state_size;
	DECODE_CODESTATE_SIZE(self->bytecode, n_state, state_size);

	mp_code_state_t *code_state;
	#if MICROPY_ENABLE_PYSTACK
	code_state = mp_pystack_alloc(sizeof(mp_code_state_t) + state_size);
	#else
	// If we use m_new_obj_var(), then on no memory, MemoryError will be
	// raised. But this is not correct exception for a function call,
	// RuntimeError should be raised instead. So, we use m_new_obj_var_maybe(),
	// return NULL, then vm.c takes the needed action (either raise
	// RuntimeError or fallback to stack allocation).
	code_state = m_new_obj_var_maybe(mp_code_state_t, byte, state_size);
	if (!code_state) {
	return NULL;
	}
	#endif

	INIT_CODESTATE(code_state, self, n_args, n_kw, args);

	// execute the byte code with the correct globals context
	mp_globals_set(self->globals);

	return code_state;
	}
	#endif

	STATIC mp_obj_t fun_bc_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	MP_STACK_CHECK();

	DEBUG_printf("Input n_args: " UINT_FMT ", n_kw: " UINT_FMT "\n", n_args, n_kw);
	DEBUG_printf("Input pos args: ");
	dump_args(args, n_args);
	DEBUG_printf("Input kw args: ");
	dump_args(args + n_args, n_kw * 2);
	mp_obj_fun_bc_t *self = MP_OBJ_TO_PTR(self_in);
	DEBUG_printf("Func n_def_args: %d\n", self->n_def_args);

	size_t n_state, state_size;
	DECODE_CODESTATE_SIZE(self->bytecode, n_state, state_size);

	// allocate state for locals and stack
	mp_code_state_t *code_state = NULL;
	#if MICROPY_ENABLE_PYSTACK
	code_state = mp_pystack_alloc(sizeof(mp_code_state_t) + state_size);
	#else
	if (state_size > VM_MAX_STATE_ON_STACK) {
	code_state = m_new_obj_var_maybe(mp_code_state_t, byte, state_size);
	}
	if (code_state == NULL) {
	code_state = alloca(sizeof(mp_code_state_t) + state_size);
	state_size = 0; // indicate that we allocated using alloca
	}
	#endif

	INIT_CODESTATE(code_state, self, n_args, n_kw, args);

	// execute the byte code with the correct globals context
	mp_globals_set(self->globals);
	mp_vm_return_kind_t vm_return_kind = mp_execute_bytecode(code_state, MP_OBJ_NULL);
	mp_globals_set(code_state->old_globals);

	#if VM_DETECT_STACK_OVERFLOW
	if (vm_return_kind == MP_VM_RETURN_NORMAL) {
	if (code_state->sp < code_state->state) {
	printf("VM stack underflow: " INT_FMT "\n", code_state->sp - code_state->state);
	assert(0);
	}
	}
	// We can't check the case when an exception is returned in state[n_state - 1]
	// and there are no arguments, because in this case our detection slot may have
	// been overwritten by the returned exception (which is allowed).
	if (!(vm_return_kind == MP_VM_RETURN_EXCEPTION && self->n_pos_args + self->n_kwonly_args == 0)) {
	// Just check to see that we have at least 1 null object left in the state.
	bool overflow = true;
	for (size_t i = 0; i < n_state - self->n_pos_args - self->n_kwonly_args; i++) {
	if (code_state->state[i] == MP_OBJ_NULL) {
	overflow = false;
	break;
	}
	}
	if (overflow) {
	printf("VM stack overflow state=%p n_state+1=" UINT_FMT "\n", code_state->state, n_state);
	assert(0);
	}
	}
	#endif

	mp_obj_t result;
	if (vm_return_kind == MP_VM_RETURN_NORMAL) {
	// return value is in *sp
	result = *code_state->sp;
	} else {
	// must be an exception because normal functions can't yield
	assert(vm_return_kind == MP_VM_RETURN_EXCEPTION);
	// return value is in fastn[0]==state[n_state - 1]
	result = code_state->state[n_state - 1];
	}

	#if MICROPY_ENABLE_PYSTACK
	mp_pystack_free(code_state);
	#else
	// free the state if it was allocated on the heap
	if (state_size != 0) {
	m_del_var(mp_code_state_t, byte, state_size, code_state);
	}
	#endif

	if (vm_return_kind == MP_VM_RETURN_NORMAL) {
	return result;
	} else { // MP_VM_RETURN_EXCEPTION
	nlr_raise(result);
	}
	}

	#if MICROPY_PY_FUNCTION_ATTRS
	STATIC void fun_bc_attr(mp_obj_t self_in, qstr attr, mp_obj_t *dest) {
	if (dest[0] != MP_OBJ_NULL) {
	// not load attribute
	return;
	}
	if (attr == MP_QSTR___name__) {
	dest[0] = MP_OBJ_NEW_QSTR(mp_obj_fun_get_name(self_in));
	}
	}
	#endif

	const mp_obj_type_t mp_type_fun_bc = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	#if MICROPY_CPYTHON_COMPAT
	.print = fun_bc_print,
	#endif
	.call = fun_bc_call,
	.unary_op = mp_generic_unary_op,
	#if MICROPY_PY_FUNCTION_ATTRS
	.attr = fun_bc_attr,
	#endif
	};

	mp_obj_t mp_obj_new_fun_bc(mp_obj_t def_args_in, mp_obj_t def_kw_args, const byte code, const mp_uint_t const_table) {
	size_t n_def_args = 0;
	size_t n_extra_args = 0;
	mp_obj_tuple_t *def_args = MP_OBJ_TO_PTR(def_args_in);
	if (def_args_in != MP_OBJ_NULL) {
	assert(MP_OBJ_IS_TYPE(def_args_in, &mp_type_tuple));
	n_def_args = def_args->len;
	n_extra_args = def_args->len;
	}
	if (def_kw_args != MP_OBJ_NULL) {
	n_extra_args += 1;
	}
	mp_obj_fun_bc_t *o = m_new_obj_var(mp_obj_fun_bc_t, mp_obj_t, n_extra_args);
	o->base.type = &mp_type_fun_bc;
	o->globals = mp_globals_get();
	o->bytecode = code;
	o->const_table = const_table;
	if (def_args != NULL) {
	memcpy(o->extra_args, def_args->items, n_def_args * sizeof(mp_obj_t));
	}
	if (def_kw_args != MP_OBJ_NULL) {
	o->extra_args[n_def_args] = def_kw_args;
	}
	return MP_OBJ_FROM_PTR(o);
	}

	/******************************************************************************/
	/* native functions */

	#if MICROPY_EMIT_NATIVE

	STATIC mp_obj_t fun_native_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	MP_STACK_CHECK();
	mp_obj_fun_bc_t *self = self_in;
	mp_call_fun_t fun = MICROPY_MAKE_POINTER_CALLABLE((void*)self->bytecode);
	return fun(self_in, n_args, n_kw, args);
	}

	STATIC const mp_obj_type_t mp_type_fun_native = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_native_call,
	.unary_op = mp_generic_unary_op,
	};

	mp_obj_t mp_obj_new_fun_native(mp_obj_t def_args_in, mp_obj_t def_kw_args, const void fun_data, const mp_uint_t const_table) {
	mp_obj_fun_bc_t o = mp_obj_new_fun_bc(def_args_in, def_kw_args, (const byte)fun_data, const_table);
	o->base.type = &mp_type_fun_native;
	return o;
	}

	#endif // MICROPY_EMIT_NATIVE

	/******************************************************************************/
	/* viper functions */

	#if MICROPY_EMIT_NATIVE

	typedef struct _mp_obj_fun_viper_t {
	mp_obj_base_t base;
	size_t n_args;
	void *fun_data; // GC must be able to trace this pointer
	mp_uint_t type_sig;
	} mp_obj_fun_viper_t;

	typedef mp_uint_t (*viper_fun_0_t)(void);
	typedef mp_uint_t (*viper_fun_1_t)(mp_uint_t);
	typedef mp_uint_t (*viper_fun_2_t)(mp_uint_t, mp_uint_t);
	typedef mp_uint_t (*viper_fun_3_t)(mp_uint_t, mp_uint_t, mp_uint_t);
	typedef mp_uint_t (*viper_fun_4_t)(mp_uint_t, mp_uint_t, mp_uint_t, mp_uint_t);

	STATIC mp_obj_t fun_viper_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	mp_obj_fun_viper_t *self = self_in;

	mp_arg_check_num(n_args, n_kw, self->n_args, self->n_args, false);

	void *fun = MICROPY_MAKE_POINTER_CALLABLE(self->fun_data);

	mp_uint_t ret;
	if (n_args == 0) {
	ret = ((viper_fun_0_t)fun)();
	} else if (n_args == 1) {
	ret = ((viper_fun_1_t)fun)(mp_convert_obj_to_native(args[0], self->type_sig >> 4));
	} else if (n_args == 2) {
	ret = ((viper_fun_2_t)fun)(mp_convert_obj_to_native(args[0], self->type_sig >> 4), mp_convert_obj_to_native(args[1], self->type_sig >> 8));
	} else if (n_args == 3) {
	ret = ((viper_fun_3_t)fun)(mp_convert_obj_to_native(args[0], self->type_sig >> 4), mp_convert_obj_to_native(args[1], self->type_sig >> 8), mp_convert_obj_to_native(args[2], self->type_sig >> 12));
	} else {
	// compiler allows at most 4 arguments
	assert(n_args == 4);
	ret = ((viper_fun_4_t)fun)(
	mp_convert_obj_to_native(args[0], self->type_sig >> 4),
	mp_convert_obj_to_native(args[1], self->type_sig >> 8),
	mp_convert_obj_to_native(args[2], self->type_sig >> 12),
	mp_convert_obj_to_native(args[3], self->type_sig >> 16)
	);
	}

	return mp_convert_native_to_obj(ret, self->type_sig);
	}

	STATIC const mp_obj_type_t mp_type_fun_viper = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_viper_call,
	.unary_op = mp_generic_unary_op,
	};

	mp_obj_t mp_obj_new_fun_viper(size_t n_args, void *fun_data, mp_uint_t type_sig) {
	mp_obj_fun_viper_t *o = m_new_obj(mp_obj_fun_viper_t);
	o->base.type = &mp_type_fun_viper;
	o->n_args = n_args;
	o->fun_data = fun_data;
	o->type_sig = type_sig;
	return o;
	}

	#endif // MICROPY_EMIT_NATIVE

	/******************************************************************************/
	/* inline assembler functions */

	#if MICROPY_EMIT_INLINE_ASM

	typedef struct _mp_obj_fun_asm_t {
	mp_obj_base_t base;
	size_t n_args;
	void *fun_data; // GC must be able to trace this pointer
	mp_uint_t type_sig;
	} mp_obj_fun_asm_t;

	typedef mp_uint_t (*inline_asm_fun_0_t)(void);
	typedef mp_uint_t (*inline_asm_fun_1_t)(mp_uint_t);
	typedef mp_uint_t (*inline_asm_fun_2_t)(mp_uint_t, mp_uint_t);
	typedef mp_uint_t (*inline_asm_fun_3_t)(mp_uint_t, mp_uint_t, mp_uint_t);
	typedef mp_uint_t (*inline_asm_fun_4_t)(mp_uint_t, mp_uint_t, mp_uint_t, mp_uint_t);

	// convert a MicroPython object to a sensible value for inline asm
	STATIC mp_uint_t convert_obj_for_inline_asm(mp_obj_t obj) {
	// TODO for byte_array, pass pointer to the array
	if (MP_OBJ_IS_SMALL_INT(obj)) {
	return MP_OBJ_SMALL_INT_VALUE(obj);
	} else if (obj == mp_const_none) {
	return 0;
	} else if (obj == mp_const_false) {
	return 0;
	} else if (obj == mp_const_true) {
	return 1;
	} else if (MP_OBJ_IS_TYPE(obj, &mp_type_int)) {
	return mp_obj_int_get_truncated(obj);
	} else if (MP_OBJ_IS_STR(obj)) {
	// pointer to the string (it's probably constant though!)
	size_t l;
	return (mp_uint_t)mp_obj_str_get_data(obj, &l);
	} else {
	mp_obj_type_t *type = mp_obj_get_type(obj);
	if (0) {
	#if MICROPY_PY_BUILTINS_FLOAT
	} else if (type == &mp_type_float) {
	// convert float to int (could also pass in float registers)
	return (mp_int_t)mp_obj_float_get(obj);
	#endif
	} else if (type == &mp_type_tuple \|\| type == &mp_type_list) {
	// pointer to start of tuple (could pass length, but then could use len(x) for that)
	size_t len;
	mp_obj_t *items;
	mp_obj_get_array(obj, &len, &items);
	return (mp_uint_t)items;
	} else {
	mp_buffer_info_t bufinfo;
	if (mp_get_buffer(obj, &bufinfo, MP_BUFFER_WRITE)) {
	// supports the buffer protocol, return a pointer to the data
	return (mp_uint_t)bufinfo.buf;
	} else {
	// just pass along a pointer to the object
	return (mp_uint_t)obj;
	}
	}
	}
	}

	STATIC mp_obj_t fun_asm_call(mp_obj_t self_in, size_t n_args, size_t n_kw, const mp_obj_t *args) {
	mp_obj_fun_asm_t *self = self_in;

	mp_arg_check_num(n_args, n_kw, self->n_args, self->n_args, false);

	void *fun = MICROPY_MAKE_POINTER_CALLABLE(self->fun_data);

	mp_uint_t ret;
	if (n_args == 0) {
	ret = ((inline_asm_fun_0_t)fun)();
	} else if (n_args == 1) {
	ret = ((inline_asm_fun_1_t)fun)(convert_obj_for_inline_asm(args[0]));
	} else if (n_args == 2) {
	ret = ((inline_asm_fun_2_t)fun)(convert_obj_for_inline_asm(args[0]), convert_obj_for_inline_asm(args[1]));
	} else if (n_args == 3) {
	ret = ((inline_asm_fun_3_t)fun)(convert_obj_for_inline_asm(args[0]), convert_obj_for_inline_asm(args[1]), convert_obj_for_inline_asm(args[2]));
	} else {
	// compiler allows at most 4 arguments
	assert(n_args == 4);
	ret = ((inline_asm_fun_4_t)fun)(
	convert_obj_for_inline_asm(args[0]),
	convert_obj_for_inline_asm(args[1]),
	convert_obj_for_inline_asm(args[2]),
	convert_obj_for_inline_asm(args[3])
	);
	}

	return mp_convert_native_to_obj(ret, self->type_sig);
	}

	STATIC const mp_obj_type_t mp_type_fun_asm = {
	{ &mp_type_type },
	.name = MP_QSTR_function,
	.call = fun_asm_call,
	.unary_op = mp_generic_unary_op,
	};

	mp_obj_t mp_obj_new_fun_asm(size_t n_args, void *fun_data, mp_uint_t type_sig) {
	mp_obj_fun_asm_t *o = m_new_obj(mp_obj_fun_asm_t);
	o->base.type = &mp_type_fun_asm;
	o->n_args = n_args;
	o->fun_data = fun_data;
	o->type_sig = type_sig;
	return o;
	}

	#endif // MICROPY_EMIT_INLINE_ASM