micropython/bare-arm/mpconfigport.h

#include <stdint.h>

// options to control how Micro Python is built

#define MICROPY_ALLOC_PATH_MAX      (512)
#define MICROPY_EMIT_X64            (0)
#define MICROPY_EMIT_THUMB          (0)
#define MICROPY_EMIT_INLINE_THUMB   (0)
#define MICROPY_MEM_STATS           (0)
#define MICROPY_DEBUG_PRINTERS      (0)
#define MICROPY_ENABLE_GC           (0)
#define MICROPY_HELPER_REPL         (0)
#define MICROPY_HELPER_LEXER_UNIX   (0)
#define MICROPY_ENABLE_SOURCE_LINE  (0)
#define MICROPY_PY_BUILTINS_PROPERTY (0)
#define MICROPY_PY_COLLECTIONS      (0)
#define MICROPY_PY_MATH             (0)
#define MICROPY_PY_CMATH            (0)
#define MICROPY_PY_IO               (0)
#define MICROPY_PY_STRUCT           (0)
#define MICROPY_PY_SYS              (0)
#define MICROPY_CPYTHON_COMPAT      (0)
#define MICROPY_LONGINT_IMPL        (MICROPY_LONGINT_IMPL_NONE)
#define MICROPY_FLOAT_IMPL          (MICROPY_FLOAT_IMPL_NONE)

// type definitions for the specific machine

#define BYTES_PER_WORD (4)

#define UINT_FMT "%lu"
#define INT_FMT "%ld"

typedef int32_t machine_int_t; // must be pointer size
typedef uint32_t machine_uint_t; // must be pointer size
typedef void *machine_ptr_t; // must be of pointer size
typedef const void *machine_const_ptr_t; // must be of pointer size

// extra built in names to add to the global namespace
extern const struct _mp_obj_fun_native_t mp_builtin_open_obj;
#define MICROPY_PORT_BUILTINS \
    { MP_OBJ_NEW_QSTR(MP_QSTR_open), (mp_obj_t)&mp_builtin_open_obj },