pic16bit: Initial version of port to 16-bit PIC family.

Reference MCU is dsPIC33J256GP506 with 256k ROM and 8k RAM, on the dsPIC
DSC Starter Kit board.  The REPL works, GC works, pyb module has LED and
Switch objects.  It passes some tests from the test suite (most it can't
run because it doesn't have the Python features enabled).

1 files changed, 71 insertions, 0 deletions

diff --git a/pic16bit/modpyb.c b/pic16bit/modpyb.c
new file mode 100644
index 0000000000..f632d94433
--- /dev/null
+++ b/pic16bit/modpyb.c
@@ -0,0 +1,71 @@
+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 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.
+ */
+
+#include <stdio.h>
+
+#include "py/obj.h"
+#include MICROPY_HAL_H
+#include "modpyb.h"
+
+STATIC mp_obj_t pyb_millis(void) {
+    return MP_OBJ_NEW_SMALL_INT(mp_hal_get_milliseconds());
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_0(pyb_millis_obj, pyb_millis);
+
+STATIC mp_obj_t pyb_elapsed_millis(mp_obj_t start) {
+    uint32_t startMillis = mp_obj_get_int(start);
+    uint32_t currMillis = mp_hal_get_milliseconds();
+    return MP_OBJ_NEW_SMALL_INT((currMillis - startMillis) & 0x1fff);
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_elapsed_millis_obj, pyb_elapsed_millis);
+
+STATIC mp_obj_t pyb_delay(mp_obj_t ms_in) {
+    mp_int_t ms = mp_obj_get_int(ms_in);
+    if (ms >= 0) {
+        mp_hal_milli_delay(ms);
+    }
+    return mp_const_none;
+}
+STATIC MP_DEFINE_CONST_FUN_OBJ_1(pyb_delay_obj, pyb_delay);
+
+STATIC const mp_map_elem_t pyb_module_globals_table[] = {
+    { MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_pyb) },
+
+    { MP_OBJ_NEW_QSTR(MP_QSTR_millis), (mp_obj_t)&pyb_millis_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_elapsed_millis), (mp_obj_t)&pyb_elapsed_millis_obj },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_delay), (mp_obj_t)&pyb_delay_obj },
+
+    { MP_OBJ_NEW_QSTR(MP_QSTR_LED), (mp_obj_t)&pyb_led_type },
+    { MP_OBJ_NEW_QSTR(MP_QSTR_Switch), (mp_obj_t)&pyb_switch_type },
+};
+
+STATIC MP_DEFINE_CONST_DICT(pyb_module_globals, pyb_module_globals_table);
+
+const mp_obj_module_t pyb_module = {
+    .base = { &mp_type_module },
+    .name = MP_QSTR_pyb,
+    .globals = (mp_obj_dict_t*)&pyb_module_globals,
+};