110 lines
3.6 KiB
ArmAsm
110 lines
3.6 KiB
ArmAsm
|
/* Copyright (c) 2001, 2009 Xilinx, Inc. All rights reserved.
|
||
|
|
||
|
Redistribution and use in source and binary forms, with or without
|
||
|
modification, are permitted provided that the following conditions are
|
||
|
met:
|
||
|
|
||
|
1. Redistributions source code must retain the above copyright notice,
|
||
|
this list of conditions and the following disclaimer.
|
||
|
|
||
|
2. 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.
|
||
|
|
||
|
3. Neither the name of Xilinx nor the names of its 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 HOLDER 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
|
||
|
HOLDER 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.
|
||
|
|
||
|
|
||
|
|
||
|
MicroBlaze Vector Map for standalone executables
|
||
|
|
||
|
Address Vector type Label
|
||
|
------- ----------- ------
|
||
|
|
||
|
# 0x00 # (-- IMM --)
|
||
|
# 0x04 # Reset _start1
|
||
|
|
||
|
# 0x08 # (-- IMM --)
|
||
|
# 0x0c # Software Exception _exception_handler
|
||
|
|
||
|
# 0x10 # (-- IMM --)
|
||
|
# 0x14 # Hardware Interrupt _interrupt_handler
|
||
|
|
||
|
# 0x18 # (-- IMM --)
|
||
|
# 0x1C # Breakpoint Exception (-- Don't Care --)
|
||
|
|
||
|
# 0x20 # (-- IMM --)
|
||
|
# 0x24 # Hardware Exception _hw_exception_handler
|
||
|
|
||
|
*/
|
||
|
|
||
|
|
||
|
.globl _start
|
||
|
.section .vectors.reset, "ax"
|
||
|
.align 2
|
||
|
.ent _start
|
||
|
.type _start, @function
|
||
|
_start:
|
||
|
brai _start1
|
||
|
.end _start
|
||
|
|
||
|
.section .vectors.sw_exception, "ax"
|
||
|
.align 2
|
||
|
_vector_sw_exception:
|
||
|
brai _exception_handler
|
||
|
|
||
|
.section .vectors.interrupt, "ax"
|
||
|
.align 2
|
||
|
_vector_interrupt:
|
||
|
brai _interrupt_handler
|
||
|
|
||
|
.section .vectors.hw_exception, "ax"
|
||
|
.align 2
|
||
|
_vector_hw_exception:
|
||
|
brai _hw_exception_handler
|
||
|
|
||
|
.section .text
|
||
|
.globl _start1
|
||
|
.align 2
|
||
|
.ent _start1
|
||
|
.type _start1, @function
|
||
|
_start1:
|
||
|
la r13, r0, _SDA_BASE_ /* Set the Small Data Anchors and the stack pointer */
|
||
|
la r2, r0, _SDA2_BASE_
|
||
|
la r1, r0, _stack-16 /* 16 bytes (4 words are needed by crtinit for args and link reg */
|
||
|
|
||
|
brlid r15, _crtinit /* Initialize BSS and run program */
|
||
|
nop
|
||
|
|
||
|
brlid r15, exit /* Call exit with the return value of main */
|
||
|
addik r5, r3, 0
|
||
|
|
||
|
/* Control does not reach here */
|
||
|
.end _start1
|
||
|
|
||
|
|
||
|
/*
|
||
|
_exit
|
||
|
Our simple _exit
|
||
|
*/
|
||
|
.globl _exit
|
||
|
.align 2
|
||
|
.ent _exit
|
||
|
.type _exit, @function
|
||
|
_exit:
|
||
|
bri 0
|
||
|
.end _exit
|