From 8edc2e4b141ffad74754686fbdc66e033ff24f34 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Fri, 22 Sep 2017 11:54:08 +1000
Subject: [PATCH] py/runtime0: Add comments about unary/binary-op enums used in
 bytecode.

---
 py/runtime0.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/py/runtime0.h b/py/runtime0.h
index 54bf192d3..6d77cce68 100644
--- a/py/runtime0.h
+++ b/py/runtime0.h
@@ -42,6 +42,8 @@
 #define MP_NATIVE_TYPE_PTR16 (0x06)
 #define MP_NATIVE_TYPE_PTR32 (0x07)
 
+// Note: the first 7 of these are used in bytecode and changing
+// them requires changing the bytecode version.
 typedef enum {
     MP_UNARY_OP_BOOL, // __bool__
     MP_UNARY_OP_LEN, // __len__
@@ -54,6 +56,8 @@ typedef enum {
     MP_UNARY_OP_SIZEOF, // for sys.getsizeof()
 } mp_unary_op_t;
 
+// Note: the first 35 of these are used in bytecode and changing
+// them requires changing the bytecode version.
 typedef enum {
     // Relational operations, should return a bool
     MP_BINARY_OP_LESS,
-- 
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