From c1c57eafac684f961923f601162bce1b19237003 Mon Sep 17 00:00:00 2001
From: Damien George <damien.p.george@gmail.com>
Date: Fri, 8 Jan 2016 13:43:56 +0000
Subject: [PATCH] py/smallint: Allow to override MP_SMALL_INT_MIN et al.

This allows a port to specify exactly how many bits are in a small
int (eg for a uPy bytecode cross compiler).
---
 py/smallint.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/py/smallint.h b/py/smallint.h
index 0e30a8085..b9686be30 100644
--- a/py/smallint.h
+++ b/py/smallint.h
@@ -31,6 +31,8 @@
 
 // Functions for small integer arithmetic
 
+#ifndef MP_SMALL_INT_MIN
+
 // In SMALL_INT, next-to-highest bits is used as sign, so both must match for value in range
 #if MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_A || MICROPY_OBJ_REPR == MICROPY_OBJ_REPR_C
 
@@ -55,6 +57,8 @@
 
 #endif
 
+#endif
+
 #define MP_SMALL_INT_MAX ((mp_int_t)(~(MP_SMALL_INT_MIN)))
 
 bool mp_small_int_mul_overflow(mp_int_t x, mp_int_t y);
-- 
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