Cleanup of sys and its macro

example-fsm-55/Makefile

@@ -5,16 +5,16 @@ PROJECT = hacker-emblem
 CHOPSTX = ..
 LDSCRIPT= hacker-emblem.ld
 
-CSRC = sys.c hh.c
+CSRC = reset.c hh.c
 
 # Hacker Emblem and "Happy Hacking!" demonstration
-# CSRC = sys.c hh.c
+# CSRC = reset.c hh.c
 
 # Debian logo demonstration
-# CSRC = sys.c debian-logo.c
+# CSRC = reset.c debian-logo.c
 
 # "Hiroshi & Ayumi with Tulip" demonstration
-# CSRC = sys.c hiroshi-ayumi.c
+# CSRC = reset.c hiroshi-ayumi.c
 
 ###################################
 CROSS = arm-none-eabi-
@@ -36,7 +36,7 @@ board.h:
 	@echo Please make a symbolic link \'board.h\' to a file in ../board;
 	@exit 1
 
-sys.c: board.h
+reset.c: board.h
 
 distclean: clean
 	rm -f board.h

example-fsm-55/hacker-emblem.ld

@@ -1,11 +1,11 @@
 /*
  * ST32F0 memory setup.
  */
-__main_stack_size__     = 0x0100;  /* Exception handlers     */
-__process0_stack_size__  = 0x0100; /* Main program           */
-__process1_stack_size__  = 0x0100; /* first thread program */
-__process2_stack_size__  = 0x0100; /* second thread program */
-__process3_stack_size__  = 0x0100; /* third thread program */
+__main_stack_size__     = 0x0100;  /* Idle+Exception handlers */
+__process0_stack_size__  = 0x0100; /* Main program            */
+__process1_stack_size__  = 0x0100; /* first thread program    */
+__process2_stack_size__  = 0x0100; /* second thread program   */
+__process3_stack_size__  = 0x0100; /* third thread program    */
 
 MEMORY
 {

example-fsm-55/reset.c

@@ -1,5 +1,5 @@
 /*
- * sys.c - No system routines, but only RESET handler for STM32F030.
+ * reset.c - No system routines, but only RESET handler for STM32F030.
  *
  * Copyright (C) 2015 Flying Stone Technology
  * Author: NIIBE Yutaka <gniibe@fsij.org>
@@ -70,7 +70,7 @@ typedef void (*handler)(void);
 extern uint8_t __main_stack_end__;
 
 handler vector[] __attribute__ ((section(".vectors"))) = {
-  (handler)&__main_stack_end__,
+  (handler)(&__main_stack_end__ - 32),
   reset,
   nmi,		/* nmi */
   hard_fault,		/* hard fault */