Add port to original Xbox using nxdk

ports/xbox/Makefile

@@ -0,0 +1,50 @@
+include ../../py/mkenv.mk
+
+# qstr definitions (must come before including py.mk)
+QSTR_DEFS = qstrdefsport.h
+
+# include py core make definitions
+include $(TOP)/py/py.mk
+
+#CROSS_COMPILE = arm-none-eabi-
+
+INC += -I.
+INC += -I$(TOP)
+INC += -I$(BUILD)
+
+CFLAGS := $(INC) -Wall
+
+#Debugging/Optimization
+#ifeq ($(DEBUG), 1)
+#CFLAGS += -O0 -ggdb
+#else
+#CFLAGS += -Os -DNDEBUG
+#endif
+
+#LDFLAGS = -nostdlib -T stm32f405.ld [email protected] --cref
+
+SRC_C = \
+	main.c
+
+#SRC_S = \
+#	startup_stm32f40xx.s \
+#	gchelper.s \
+
+OBJ += $(PY_CORE_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o) $(SRC_S:.s=.o))
+
+# Add stuff to nxdk target
+main.exe: $(OBJ)
+
+XBE_TITLE = micropython
+
+#FIXME: Remove path
+NXDK_DIR=/home/fox/Data/Projects/XboxDev/nxdk
+include $(NXDK_DIR)/Makefile
+
+#FIXME: This is a cruel hack because uPython sucks a bit (unistd.h)
+CFLAGS := $(NXDK_CFLAGS) -Dssize_t=int -DSEEK_SET=0 -DSEEK_CUR=1 -DSEEK_END=2
+CXXFLAGS := $(NXDK_CXXFLAGS)
+ASFLAGS := $(NXDK_ASFLAGS)
+LDFLAGS := $(NXDK_LDFLAGS)
+
+include $(TOP)/py/mkrules.mk

ports/xbox/README.md

@@ -0,0 +1,3 @@
+# Build Instructions for original Xbox using nxdk
+
+The tool chain required for the build can be found at <https://github.com/XboxDev/nxdk>.

ports/xbox/main.c

@@ -0,0 +1,110 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "py/compile.h"
+#include "py/runtime.h"
+#include "py/repl.h"
+#include "py/mperrno.h"
+
+#include <hal/debug.h>
+#include <pbkit/pbkit.h>
+#include <hal/xbox.h>
+#include <hal/video.h>
+
+void do_str(const char *src, mp_parse_input_kind_t input_kind) {
+    nlr_buf_t nlr;
+    if (nlr_push(&nlr) == 0) {
+        mp_lexer_t *lex = mp_lexer_new_from_str_len(MP_QSTR__lt_stdin_gt_, src, strlen(src), 0);
+        qstr source_name = lex->source_name;
+        mp_parse_tree_t parse_tree = mp_parse(lex, input_kind);
+        mp_obj_t module_fun = mp_compile(&parse_tree, source_name, MP_EMIT_OPT_NONE, true);
+        mp_call_function_0(module_fun);
+        nlr_pop();
+    } else {
+        // uncaught exception
+        mp_obj_print_exception(&mp_plat_print, (mp_obj_t)nlr.ret_val);
+    }
+}
+
+int main(int argc, char **argv) {
+
+    XVideoSetMode(640, 480, 32, REFRESH_DEFAULT);
+
+    int ret = pb_init();
+    if (ret != 0) {
+        XSleep(2000);
+        return 1;
+    }
+
+    pb_show_debug_screen();
+
+    mp_init();
+    do_str("print('hello world!', list(x+1 for x in range(10)), end='eol\\n')", MP_PARSE_SINGLE_INPUT);
+    do_str("for i in range(10):\n  print(i)", MP_PARSE_FILE_INPUT);
+    mp_deinit();
+    return 0;
+}
+
+mp_lexer_t *mp_lexer_new_from_file(const char *filename) {
+    mp_raise_OSError(MP_ENOENT);
+}
+
+mp_import_stat_t mp_import_stat(const char *path) {
+    return MP_IMPORT_STAT_NO_EXIST;
+}
+
+mp_obj_t mp_builtin_open(size_t 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) {
+    while (1);
+}
+
+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
+
+/*
+int _lseek() {return 0;}
+int _read() {return 0;}
+int _write() {return 0;}
+int _close() {return 0;}
+void _exit(int x) {for(;;){}}
+int _sbrk() {return 0;}
+int _kill() {return 0;}
+int _getpid() {return 0;}
+int _fstat() {return 0;}
+int _isatty() {return 0;}
+*/
+
+#if 0
+void *malloc(size_t n) {return NULL;}
+void *calloc(size_t nmemb, size_t size) {return NULL;}
+void *realloc(void *ptr, size_t size) {return NULL;}
+void free(void *p) {}
+int printf(const char *m, ...) {return 0;}
+void *memcpy(void *dest, const void *src, size_t n) {return NULL;}
+int memcmp(const void *s1, const void *s2, size_t n) {return 0;}
+void *memmove(void *dest, const void *src, size_t n) {return NULL;}
+void *memset(void *s, int c, size_t n) {return NULL;}
+int strcmp(const char *s1, const char* s2) {return 0;}
+int strncmp(const char *s1, const char* s2, size_t n) {return 0;}
+size_t strlen(const char *s) {return 0;}
+char *strcat(char *dest, const char *src) {return NULL;}
+char *strchr(const char *dest, int c) {return NULL;}
+#include <stdarg.h>
+int vprintf(const char *format, va_list ap) {return 0;}
+int vsnprintf(char *str,  size_t  size,  const  char  *format, va_list ap) {return 0;}
+#endif
+
+#undef putchar

ports/xbox/mpconfigport.h

@@ -0,0 +1,68 @@
+#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)
+#define MICROPY_NLR_SETJMP          (1)
+
+// 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) do { debugPrint("%s", str); } while (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>
+#define alloca(x) __builtin_alloca(x)

ports/xbox/mphalport.h

@@ -0,0 +1 @@
+// empty file

ports/xbox/qstrdefsport.h

@@ -0,0 +1 @@
+// qstrs specific to this port