add circuitpython code

1 files changed, 114 insertions, 0 deletions

diff --git a/circuitpython/py/persistentcode.h b/circuitpython/py/persistentcode.h
new file mode 100644
index 0000000..1c53ca1
--- /dev/null
+++ b/circuitpython/py/persistentcode.h
@@ -0,0 +1,114 @@
+/*
+ * This file is part of the MicroPython project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * SPDX-FileCopyrightText: Copyright (c) 2013-2016 Damien P. George
+ *
+ * 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.
+ */
+#ifndef MICROPY_INCLUDED_PY_PERSISTENTCODE_H
+#define MICROPY_INCLUDED_PY_PERSISTENTCODE_H
+
+#include "py/mpprint.h"
+#include "py/reader.h"
+#include "py/emitglue.h"
+
+// The current version of .mpy files
+#define MPY_VERSION 5
+
+// Macros to encode/decode flags to/from the feature byte
+#define MPY_FEATURE_ENCODE_FLAGS(flags) (flags)
+#define MPY_FEATURE_DECODE_FLAGS(feat) ((feat) & 3)
+
+// Macros to encode/decode native architecture to/from the feature byte
+#define MPY_FEATURE_ENCODE_ARCH(arch) ((arch) << 2)
+#define MPY_FEATURE_DECODE_ARCH(feat) ((feat) >> 2)
+
+// The feature flag bits encode the compile-time config options that affect
+// the generate bytecode. Note: position 0 is now unused
+// (formerly MICROPY_OPT_CACHE_MAP_LOOKUP_IN_BYTECODE).
+#define MPY_FEATURE_FLAGS ( \
+    ((MICROPY_PY_BUILTINS_STR_UNICODE) << 1) \
+    )
+// This is a version of the flags that can be configured at runtime.
+#define MPY_FEATURE_FLAGS_DYNAMIC ( \
+    ((MICROPY_PY_BUILTINS_STR_UNICODE_DYNAMIC) << 1) \
+    )
+
+// Define the host architecture
+#if MICROPY_EMIT_X86
+    #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_X86)
+#elif MICROPY_EMIT_X64
+    #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_X64)
+#elif MICROPY_EMIT_THUMB
+    #if defined(__thumb2__)
+        #if defined(__ARM_FP) && (__ARM_FP & 8) == 8
+            #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7EMDP)
+        #elif defined(__ARM_FP) && (__ARM_FP & 4) == 4
+            #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7EMSP)
+        #else
+            #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7EM)
+        #endif
+    #else
+        #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV7M)
+    #endif
+    #define MPY_FEATURE_ARCH_TEST(x) (MP_NATIVE_ARCH_ARMV6M <= (x) && (x) <= MPY_FEATURE_ARCH)
+#elif MICROPY_EMIT_ARM
+    #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_ARMV6)
+#elif MICROPY_EMIT_XTENSA
+    #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_XTENSA)
+#elif MICROPY_EMIT_XTENSAWIN
+    #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_XTENSAWIN)
+#else
+    #define MPY_FEATURE_ARCH (MP_NATIVE_ARCH_NONE)
+#endif
+
+#ifndef MPY_FEATURE_ARCH_TEST
+#define MPY_FEATURE_ARCH_TEST(x) ((x) == MPY_FEATURE_ARCH)
+#endif
+
+// 16-bit little-endian integer with the second and third bytes of supported .mpy files
+#define MPY_FILE_HEADER_INT (MPY_VERSION \
+    | (MPY_FEATURE_ENCODE_FLAGS(MPY_FEATURE_FLAGS) | MPY_FEATURE_ENCODE_ARCH(MPY_FEATURE_ARCH)) << 8)
+
+enum {
+    MP_NATIVE_ARCH_NONE = 0,
+    MP_NATIVE_ARCH_X86,
+    MP_NATIVE_ARCH_X64,
+    MP_NATIVE_ARCH_ARMV6,
+    MP_NATIVE_ARCH_ARMV6M,
+    MP_NATIVE_ARCH_ARMV7M,
+    MP_NATIVE_ARCH_ARMV7EM,
+    MP_NATIVE_ARCH_ARMV7EMSP,
+    MP_NATIVE_ARCH_ARMV7EMDP,
+    MP_NATIVE_ARCH_XTENSA,
+    MP_NATIVE_ARCH_XTENSAWIN,
+};
+
+mp_raw_code_t *mp_raw_code_load(mp_reader_t *reader);
+mp_raw_code_t *mp_raw_code_load_mem(const byte *buf, size_t len);
+mp_raw_code_t *mp_raw_code_load_file(const char *filename);
+
+void mp_raw_code_save(mp_raw_code_t *rc, mp_print_t *print);
+void mp_raw_code_save_file(mp_raw_code_t *rc, const char *filename);
+
+void mp_native_relocate(void *reloc, uint8_t *text, uintptr_t reloc_text);
+
+#endif // MICROPY_INCLUDED_PY_PERSISTENTCODE_H