1 files changed, 125 insertions, 0 deletions
diff --git a/pic16bit/main.c b/pic16bit/main.c
new file mode 100644
index 0000000000..9b993fda90
--- /dev/null
+++ b/pic16bit/main.c
@@ -0,0 +1,125 @@
+/*
+ * 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 <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <p33Fxxxx.h>
+
+#include "py/compile.h"
+#include "py/runtime.h"
+#include "py/gc.h"
+#include "pyexec.h"
+#include "readline.h"
+#include MICROPY_HAL_H
+#include "board.h"
+#include "modpyb.h"
+
+_FGS(GWRP_OFF & GCP_OFF);
+_FOSCSEL(FNOSC_FRC);
+_FOSC(FCKSM_CSECMD & OSCIOFNC_ON & POSCMD_NONE);
+_FWDT(FWDTEN_OFF);
+
+// maximum heap for device with 8k RAM
+static char heap[4600];
+
+int main(int argc, char **argv) {
+    // init the CPU and the peripherals
+    cpu_init();
+    led_init();
+    switch_init();
+    uart_init();
+
+soft_reset:
+
+    // flash green led for 150ms to indicate boot
+    led_state(1, 0);
+    led_state(2, 0);
+    led_state(3, 1);
+    mp_hal_milli_delay(150);
+    led_state(3, 0);
+
+    // init MicroPython runtime
+    int stack_dummy;
+    MP_STATE_VM(stack_top) = (char*)&stack_dummy;
+    gc_init(heap, heap + sizeof(heap));
+    mp_init();
+    mp_hal_init();
+    readline_init0();
+
+    // REPL loop
+    for (;;) {
+        if (pyexec_mode_kind == PYEXEC_MODE_RAW_REPL) {
+            if (pyexec_raw_repl() != 0) {
+                break;
+            }
+        } else {
+            if (pyexec_friendly_repl() != 0) {
+                break;
+            }
+        }
+    }
+
+    printf("PYB: soft reboot\n");
+    mp_deinit();
+    goto soft_reset;
+}
+
+void gc_collect(void) {
+    // TODO possibly need to trace registers
+    void *dummy;
+    gc_collect_start();
+    // Node: stack is ascending
+    gc_collect_root(&dummy, ((mp_uint_t)&dummy - (mp_uint_t)MP_STATE_VM(stack_top)) / sizeof(mp_uint_t));
+    gc_collect_end();
+}
+
+mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
+    return NULL;
+}
+
+mp_import_stat_t mp_import_stat(const char *path) {
+    return MP_IMPORT_STAT_NO_EXIST;
+}
+
+mp_obj_t mp_builtin_open(uint n_args, const mp_obj_t *args, mp_map_t *kwargs) {
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
+
+void nlr_jump_fail(void *val) {
+}
+
+void NORETURN __fatal_error(const char *msg) {
+    while (1);
+}
+
+#ifndef NDEBUG
+void MP_WEAK __assert_func(const char *file, int line, const char *func, const char *expr) {
+    printf("Assertion '%s' failed, at file %s:%d\n", expr, file, line);
+    __fatal_error("Assertion failed");
+}
+#endif