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/* Copyright (c) 2002, Marek Michalkiewicz <marekm@amelek.gda.pl>
Copyright (c) 2007, 2008 Eric B. Weddington
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the
distribution.
* Neither the name of the copyright holders nor the names of
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE. */
/* $Id$ */
#if (__GNUC__ < 3) || (__GNUC__ == 3 && __GNUC_MINOR__ < 3)
#error "GCC version >= 3.3 required"
#endif
/*
#include IOSYMFILE
#include "macros.inc"
*/
#include <avr/io.h>
//#include <avr/pgmspace.h>
#ifdef __AVR_HAVE_JMP_CALL__
#define XJMP jmp
#else
#define XJMP rjmp
#endif
#define XCALL rcall
.macro vector name
.weak \name
.set \name, __init
XJMP \name
.endm
.section .vectors,"ax",@progbits
.global __vectors
.global __bad_interrupt
.func __vectors
__bad_interrupt:
__vectors:
XJMP __init
; vector __vector_1
; vector __vector_2
; vector __vector_3
.endfunc
/* Handle unexpected interrupts (enabled and no handler), which
usually indicate a bug. Jump to the __vector_default function
if defined by the user, otherwise jump to the reset address.
This must be in a different section, otherwise the assembler
will resolve "rjmp" offsets and there will be no relocs. */
.section .init0,"ax",@progbits
.weak __init
; .func __init
__init:
.weak __stack
.set __stack, RAMEND
/* By default, malloc() uses the current value of the stack pointer
minus __malloc_margin as the highest available address.
In some applications with external SRAM, the stack can be below
the data section (in the internal SRAM - faster), and __heap_end
should be set to the highest address available for malloc(). */
.weak __heap_end
.set __heap_end, 0
.section .init2,"ax",@progbits
clr R1
#ifndef ENABLE_UNSAFE_OPTIMIZATIONS
out 0x3f,r1
ldi r28,lo8(__stack)
ldi r29,hi8(__stack)
out 0x3d, r28
out 0x3e, r29
#endif
.section .init9,"ax",@progbits
; rcall main
; XJMP __vectors-2
XJMP main
; .endfunc
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