Change object representation from 1 big union to individual structs.

A big change.  Micro Python objects are allocated as individual structs
with the first element being a pointer to the type information (which
is itself an object).  This scheme follows CPython.  Much more flexible,
not necessarily slower, uses same heap memory, and can allocate objects
statically.

Also change name prefix, from py_ to mp_ (mp for Micro Python).

1 files changed, 98 insertions, 0 deletions

diff --git a/py/bc0.h b/py/bc0.h
new file mode 100644
index 000000000..e6dc84277
--- /dev/null
+++ b/py/bc0.h
@@ -0,0 +1,98 @@
+#define MP_BC_LOAD_CONST_FALSE   (0x10)
+#define MP_BC_LOAD_CONST_NONE    (0x11)
+#define MP_BC_LOAD_CONST_TRUE    (0x12)
+#define MP_BC_LOAD_CONST_SMALL_INT   (0x13) // 24-bit, in excess
+#define MP_BC_LOAD_CONST_INT     (0x14) // qstr
+#define MP_BC_LOAD_CONST_DEC     (0x15) // qstr
+#define MP_BC_LOAD_CONST_ID      (0x16) // qstr
+#define MP_BC_LOAD_CONST_BYTES   (0x17) // qstr
+#define MP_BC_LOAD_CONST_STRING  (0x18) // qstr
+
+#define MP_BC_LOAD_FAST_0        (0x20)
+#define MP_BC_LOAD_FAST_1        (0x21)
+#define MP_BC_LOAD_FAST_2        (0x22)
+#define MP_BC_LOAD_FAST_N        (0x23) // uint
+#define MP_BC_LOAD_DEREF         (0x24) // uint
+#define MP_BC_LOAD_CLOSURE       (0x25) // uint
+#define MP_BC_LOAD_NAME          (0x26) // qstr
+#define MP_BC_LOAD_GLOBAL        (0x27) // qstr
+#define MP_BC_LOAD_ATTR          (0x28) // qstr
+#define MP_BC_LOAD_METHOD        (0x29) // qstr
+#define MP_BC_LOAD_BUILD_CLASS   (0x2a)
+
+#define MP_BC_STORE_FAST_0       (0x30)
+#define MP_BC_STORE_FAST_1       (0x31)
+#define MP_BC_STORE_FAST_2       (0x32)
+#define MP_BC_STORE_FAST_N       (0x33) // uint
+#define MP_BC_STORE_DEREF        (0x34) // uint
+#define MP_BC_STORE_NAME         (0x35) // qstr
+#define MP_BC_STORE_GLOBAL       (0x36) // qstr
+#define MP_BC_STORE_ATTR         (0x37) // qstr
+#define MP_BC_STORE_SUBSCR       (0x38)
+
+#define MP_BC_DELETE_FAST_N      (0x39) // uint
+#define MP_BC_DELETE_DEREF       (0x3a) // uint
+#define MP_BC_DELETE_NAME        (0x3b) // qstr
+#define MP_BC_DELETE_GLOBAL      (0x3c) // qstr
+#define MP_BC_DELETE_ATTR        (0x3d) // qstr
+#define MP_BC_DELETE_SUBSCR      (0x3e)
+
+#define MP_BC_DUP_TOP            (0x40)
+#define MP_BC_DUP_TOP_TWO        (0x41)
+#define MP_BC_POP_TOP            (0x42)
+#define MP_BC_ROT_TWO            (0x43)
+#define MP_BC_ROT_THREE          (0x44)
+
+#define MP_BC_JUMP               (0x45) // rel byte code offset, 16-bit signed, in excess
+#define MP_BC_POP_JUMP_IF_TRUE   (0x46) // rel byte code offset, 16-bit signed, in excess
+#define MP_BC_POP_JUMP_IF_FALSE  (0x47) // rel byte code offset, 16-bit signed, in excess
+#define MP_BC_JUMP_IF_TRUE_OR_POP    (0x48) // rel byte code offset, 16-bit signed, in excess
+#define MP_BC_JUMP_IF_FALSE_OR_POP   (0x49) // rel byte code offset, 16-bit signed, in excess
+#define MP_BC_SETUP_LOOP         (0x4a) // rel byte code offset, 16-bit unsigned
+#define MP_BC_BREAK_LOOP         (0x4b) // rel byte code offset, 16-bit unsigned
+#define MP_BC_CONTINUE_LOOP      (0x4c) // rel byte code offset, 16-bit unsigned
+#define MP_BC_SETUP_WITH         (0x4d) // rel byte code offset, 16-bit unsigned
+#define MP_BC_WITH_CLEANUP       (0x4e)
+#define MP_BC_SETUP_EXCEPT       (0x4f) // rel byte code offset, 16-bit unsigned
+#define MP_BC_SETUP_FINALLY      (0x50) // rel byte code offset, 16-bit unsigned
+#define MP_BC_END_FINALLY        (0x51)
+#define MP_BC_GET_ITER           (0x52)
+#define MP_BC_FOR_ITER           (0x53) // rel byte code offset, 16-bit unsigned
+#define MP_BC_POP_BLOCK          (0x54)
+#define MP_BC_POP_EXCEPT         (0x55)
+
+#define MP_BC_UNARY_OP           (0x60) // byte
+#define MP_BC_BINARY_OP          (0x61) // byte
+#define MP_BC_COMPARE_OP         (0x62) // byte
+
+#define MP_BC_BUILD_TUPLE        (0x70) // uint
+#define MP_BC_BUILD_LIST         (0x71) // uint
+#define MP_BC_LIST_APPEND        (0x72) // uint
+#define MP_BC_BUILD_MAP          (0x73) // uint
+#define MP_BC_STORE_MAP          (0x74)
+#define MP_BC_MAP_ADD            (0x75) // uint
+#define MP_BC_BUILD_SET          (0x76) // uint
+#define MP_BC_SET_ADD            (0x77) // uint
+#define MP_BC_BUILD_SLICE        (0x78) // uint
+#define MP_BC_UNPACK_SEQUENCE    (0x79) // uint
+#define MP_BC_UNPACK_EX          (0x7a) // uint
+
+#define MP_BC_RETURN_VALUE       (0x80)
+#define MP_BC_RAISE_VARARGS      (0x81) // uint
+#define MP_BC_YIELD_VALUE        (0x82)
+#define MP_BC_YIELD_FROM         (0x83)
+
+#define MP_BC_MAKE_FUNCTION      (0x90) // uint
+#define MP_BC_MAKE_CLOSURE       (0x91) // uint
+#define MP_BC_CALL_FUNCTION      (0x92) // uint
+#define MP_BC_CALL_FUNCTION_VAR  (0x93) // uint
+#define MP_BC_CALL_FUNCTION_KW   (0x94) // uint
+#define MP_BC_CALL_FUNCTION_VAR_KW   (0x95) // uint
+#define MP_BC_CALL_METHOD        (0x96) // uint
+#define MP_BC_CALL_METHOD_VAR    (0x97) // uint
+#define MP_BC_CALL_METHOD_KW     (0x98) // uint
+#define MP_BC_CALL_METHOD_VAR_KW (0x99) // uint
+
+#define MP_BC_IMPORT_NAME        (0xe0) // qstr
+#define MP_BC_IMPORT_FROM        (0xe1) // qstr
+#define MP_BC_IMPORT_STAR        (0xe2)