CircuitPython

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#include <stdint.h>

// options to control how MicroPython is built

#define MICROPY_QSTR_BYTES_IN_HASH  (1)
#define MICROPY_ALLOC_PATH_MAX      (512)
#define MICROPY_EMIT_X64            (0)
#define MICROPY_EMIT_THUMB          (0)
#define MICROPY_EMIT_INLINE_THUMB   (0)
#define MICROPY_COMP_MODULE_CONST   (0)
#define MICROPY_COMP_CONST          (0)
#define MICROPY_COMP_DOUBLE_TUPLE_ASSIGN (0)
#define MICROPY_COMP_TRIPLE_TUPLE_ASSIGN (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_ENABLE_DOC_STRING   (0)
#define MICROPY_ERROR_REPORTING     (MICROPY_ERROR_REPORTING_TERSE)
#define MICROPY_BUILTIN_METHOD_CHECK_SELF_ARG (0)
#define MICROPY_PY_ASYNC_AWAIT (0)
#define MICROPY_PY_BUILTINS_BYTEARRAY (0)
#define MICROPY_PY_BUILTINS_MEMORYVIEW (0)
#define MICROPY_PY_BUILTINS_ENUMERATE (0)
#define MICROPY_PY_BUILTINS_FROZENSET (0)
#define MICROPY_PY_BUILTINS_REVERSED (0)
#define MICROPY_PY_BUILTINS_SET     (0)
#define MICROPY_PY_BUILTINS_SLICE   (0)
#define MICROPY_PY_BUILTINS_PROPERTY (0)
#define MICROPY_PY___FILE__         (0)
#define MICROPY_PY_GC               (0)
#define MICROPY_PY_ARRAY            (0)
#define MICROPY_PY_ATTRTUPLE        (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)
#define MICROPY_USE_INTERNAL_PRINTF (0)

// type definitions for the specific machine

#define MICROPY_MAKE_POINTER_CALLABLE(p) ((void*)((mp_uint_t)(p) | 1))

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

typedef int32_t mp_int_t; // must be pointer size
typedef uint32_t mp_uint_t; // must be pointer size
typedef long mp_off_t;

// dummy print
#define MP_PLAT_PRINT_STRN(str, len) (void)0

// extra built in names to add to the global namespace
#define MICROPY_PORT_BUILTINS \
    { MP_ROM_QSTR(MP_QSTR_open), MP_ROM_PTR(&mp_builtin_open_obj) },

// We need to provide a declaration/definition of alloca()
#include <alloca.h>