From 77934f364f0fb147357bf691d0e71c35f4051168 Mon Sep 17 00:00:00 2001
From: Ayke van Laethem <aykevanlaethem@gmail.com>
Date: Mon, 17 Sep 2018 15:10:52 +0200
Subject: [PATCH] avr: fix corrupted .data byte

The stack and the .data section shared the first byte, leading to
corruption of the first byte of .data.
---
 targets/avr.S | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/targets/avr.S b/targets/avr.S
index b62c1add..a60dde2b 100644
--- a/targets/avr.S
+++ b/targets/avr.S
@@ -17,6 +17,9 @@ reset:
     out  0x3d, xl; SPL
     out  0x3e, xh; SPH
 
+    ; Add one to the stack pointer, so it doesn't point in the .data section.
+    push r0
+
     ; Initialize .data
 init_data:
     ldi  xl, lo8(_sdata)