| 0,0 → 1,81 |
|---|
| # |
| # Copyright (C) 2005 Jakub Jermar |
| # 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. |
| # - The name of the author may not be used to endorse or promote products |
| # derived from this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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. |
| # |
| |
| #include <arch/register.h> |
| |
| .section K_TEXT_START |
| |
| .global kernel_image_start |
| |
| stack0: |
| kernel_image_start: |
| .auto |
| |
| # initialize PSR |
| mov psr.l = r0 |
| srlz.i |
| srlz.d |
| ssm PSR_IC_MASK |
| srlz.d |
| |
| # switch to register bank 1 |
| bsw.1 |
| |
| # initialize register stack |
| mov ar.rsc = r0 |
| mov ar.bspstore = r0 |
| loadrs |
| |
| .explicit |
| # initialize memory stack to some sane value |
| movl r12 = stack0 ;; |
| add r12 = - 16, r12 /* allocate a scratch area on the stack */ |
| |
| # initialize gp (Global Pointer) register |
| movl r1 = _hardcoded_load_address |
| |
| ;; |
| |
| # |
| # Initialize hardcoded_* variables. |
| # |
| movl r14 = _hardcoded_ktext_size |
| movl r15 = _hardcoded_kdata_size |
| movl r16 = _hardcoded_load_address |
| addl r17 = @gprel(hardcoded_ktext_size), gp |
| addl r18 = @gprel(hardcoded_kdata_size), gp |
| addl r19 = @gprel(hardcoded_load_address), gp |
| ;; |
| st4 [r17] = r14 |
| st4 [r18] = r15 |
| st8 [r19] = r16 |
| |
| br.call.sptk.many b0=main_bsp |
| |
| 0: |
| br 0b |