From 1d5d4f49d9bf7dd4930a2b00a0ce2ee7ffbbd604 Mon Sep 17 00:00:00 2001
From: Paul Sokolovsky <pfalcon@users.sourceforge.net>
Date: Sat, 13 Feb 2016 15:43:28 +0200
Subject: py/stackctrl: Add mp_stack_set_top() to explicitly set stack top
 value.

Useful for embedded targets with fixed stack layout.
---
 py/stackctrl.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'py/stackctrl.c')

diff --git a/py/stackctrl.c b/py/stackctrl.c
index 4c5165372..14d1fd042 100644
--- a/py/stackctrl.c
+++ b/py/stackctrl.c
@@ -35,6 +35,10 @@ void mp_stack_ctrl_init(void) {
     MP_STATE_VM(stack_top) = (char*)&stack_dummy;
 }
 
+void mp_stack_set_top(void *top) {
+    MP_STATE_VM(stack_top) = top;
+}
+
 mp_uint_t mp_stack_usage(void) {
     // Assumes descending stack
     volatile int stack_dummy;
-- 
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