From 9d1baca216a7697c95a9f68cdd0e768e0e7842e5 Mon Sep 17 00:00:00 2001
From: AceVest <zhaoyanbai@126.com>
Date: Mon, 18 Jun 2018 17:48:35 +0800
Subject: [PATCH] ...

---
 arduino/hardware/ace/avr/cores/avr/kernel.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arduino/hardware/ace/avr/cores/avr/kernel.cpp b/arduino/hardware/ace/avr/cores/avr/kernel.cpp
index 17b1cd6..95495ee 100644
--- a/arduino/hardware/ace/avr/cores/avr/kernel.cpp
+++ b/arduino/hardware/ace/avr/cores/avr/kernel.cpp
@@ -70,6 +70,7 @@ void create_task(void (*handler)(), uint8_t *stack, uint8_t priority)
 
     t->stack = stack + TASK_STACK_SIZE - 3;
     uint8_t *p = t->stack;
+    // 貌似atmega328p执行RET会弹出3个字节给到PC寄存器
     *(p+0) = (((uint32_t)handler) >> 16);
     *(p+1) = (((uint32_t)handler) >> 8);
     *(p+2) = (((uint32_t)handler) >> 0);
-- 
2.44.0