add circuitpython code

1 files changed, 557 insertions, 0 deletions

diff --git a/circuitpython/py/objfun.c b/circuitpython/py/objfun.c
new file mode 100644
index 0000000..55c3fbb
--- /dev/null
+++ b/circuitpython/py/objfun.c
@@ -0,0 +1,557 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: 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"
+
+#include "supervisor/linker.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 },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_BUILTIN_FUN | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    MP_TYPE_EXTENDED_FIELDS(
+        .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 },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_BUILTIN_FUN | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    MP_TYPE_EXTENDED_FIELDS(
+        .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 },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_BUILTIN_FUN | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    MP_TYPE_EXTENDED_FIELDS(
+        .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 },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_BUILTIN_FUN | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    MP_TYPE_EXTENDED_FIELDS(
+        .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_sig(n_args, n_kw, self->sig);
+
+    if (self->sig & 1) {
+        // 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 },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_BUILTIN_FUN | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    MP_TYPE_EXTENDED_FIELDS(
+        .call = fun_builtin_var_call,
+        .unary_op = mp_generic_unary_op,
+        ),
+};
+
+/******************************************************************************/
+/* byte code functions                                                        */
+
+qstr mp_obj_code_get_name(const byte *code_info) {
+    MP_BC_PRELUDE_SIZE_DECODE(code_info);
+    #if MICROPY_PERSISTENT_CODE
+    return code_info[0] | (code_info[1] << 8);
+    #else
+    return mp_decode_uint_value(code_info);
+    #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;
+    MP_BC_PRELUDE_SIG_DECODE(bc);
+    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 %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 (sizeof(mp_uint_t) * 11)
+
+#define DECODE_CODESTATE_SIZE(bytecode, n_state_out_var, state_size_out_var) \
+    { \
+        const uint8_t *ip = bytecode; \
+        size_t n_exc_stack, scope_flags, n_pos_args, n_kwonly_args, n_def_args; \
+        MP_BC_PRELUDE_SIG_DECODE_INTO(ip, n_state_out_var, n_exc_stack, scope_flags, n_pos_args, n_kwonly_args, n_def_args); \
+        (void)scope_flags; (void)n_pos_args; (void)n_kwonly_args; (void)n_def_args; \
+        \
+        /* state size in bytes */                                                 \
+        state_size_out_var = n_state_out_var * sizeof(mp_obj_t)                   \
+            + n_exc_stack * sizeof(mp_exc_stack_t);                \
+    }
+
+#define INIT_CODESTATE(code_state, _fun_bc, _n_state, n_args, n_kw, args) \
+    code_state->fun_bc = _fun_bc; \
+    code_state->ip = 0; \
+    code_state->n_state = _n_state; \
+    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_state, 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 PLACE_IN_ITCM(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);
+
+    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 MICROPY_DEBUG_VM_STACK_OVERFLOW
+        if (code_state != NULL) {
+            memset(code_state->state, 0, state_size);
+        }
+        #endif
+    }
+    if (code_state == NULL) {
+        code_state = alloca(sizeof(mp_code_state_t) + state_size);
+        #if MICROPY_DEBUG_VM_STACK_OVERFLOW
+        memset(code_state->state, 0, state_size);
+        #endif
+        state_size = 0; // indicate that we allocated using alloca
+    }
+    #endif
+
+    INIT_CODESTATE(code_state, self, n_state, 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 MICROPY_DEBUG_VM_STACK_OVERFLOW
+    if (vm_return_kind == MP_VM_RETURN_NORMAL) {
+        if (code_state->sp < code_state->state) {
+            mp_printf(MICROPY_DEBUG_PRINTER, "VM stack underflow: " INT_FMT "\n", code_state->sp - code_state->state);
+            assert(0);
+        }
+    }
+    const byte *bytecode_ptr = self->bytecode;
+    size_t n_state_unused, n_exc_stack_unused, scope_flags_unused;
+    size_t n_pos_args, n_kwonly_args, n_def_args_unused;
+    MP_BC_PRELUDE_SIG_DECODE_INTO(bytecode_ptr, n_state_unused, n_exc_stack_unused,
+        scope_flags_unused, n_pos_args, n_kwonly_args, n_def_args_unused);
+    // We can't check the case when an exception is returned in state[0]
+    // 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 && n_pos_args + 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 - n_pos_args - n_kwonly_args; ++i) {
+            if (code_state->state[i] == MP_OBJ_NULL) {
+                overflow = false;
+                break;
+            }
+        }
+        if (overflow) {
+            mp_printf(MICROPY_DEBUG_PRINTER, "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);
+        // returned exception is in state[0]
+        result = code_state->state[0];
+    }
+
+    #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
+void mp_obj_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));
+    }
+    if (attr == MP_QSTR___globals__) {
+        mp_obj_fun_bc_t *self = MP_OBJ_TO_PTR(self_in);
+        dest[0] = MP_OBJ_FROM_PTR(self->globals);
+    }
+}
+#endif
+
+const mp_obj_type_t mp_type_fun_bc = {
+    { &mp_type_type },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    #if MICROPY_CPYTHON_COMPAT
+    .print = fun_bc_print,
+    #endif
+    #if MICROPY_PY_FUNCTION_ATTRS
+    .attr = mp_obj_fun_bc_attr,
+    #endif
+    MP_TYPE_EXTENDED_FIELDS(
+        .call = fun_bc_call,
+        .unary_op = mp_generic_unary_op,
+        ),
+};
+
+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);
+}
+
+const mp_obj_type_t mp_type_fun_native = {
+    { &mp_type_type },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    MP_TYPE_EXTENDED_FIELDS(
+        .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
+
+/******************************************************************************/
+/* inline assembler functions                                                 */
+
+#if MICROPY_EMIT_INLINE_ASM
+
+typedef struct _mp_obj_fun_asm_t {
+    mp_obj_base_t base;
+    size_t n_args;
+    const 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 {
+        const mp_obj_type_t *type = mp_obj_get_type(obj);
+        #if MICROPY_PY_BUILTINS_FLOAT
+        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
+        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_READ)) {
+                // 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);
+
+    const 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_native_to_obj(ret, self->type_sig);
+}
+
+STATIC const mp_obj_type_t mp_type_fun_asm = {
+    { &mp_type_type },
+    .flags = MP_TYPE_FLAG_BINDS_SELF | MP_TYPE_FLAG_EXTENDED,
+    .name = MP_QSTR_function,
+    MP_TYPE_EXTENDED_FIELDS(
+        .call = fun_asm_call,
+        .unary_op = mp_generic_unary_op,
+        ),
+};
+
+mp_obj_t mp_obj_new_fun_asm(size_t n_args, const 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