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2511 | vana | 1 | # |
2 | # Copyright (c) 2006 Martin Decky |
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3 | # Copyright (c) 2006 Jakub Jermar |
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4 | # All rights reserved. |
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5 | # |
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6 | # Redistribution and use in source and binary forms, with or without |
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7 | # modification, are permitted provided that the following conditions |
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8 | # are met: |
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9 | # |
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10 | # - Redistributions of source code must retain the above copyright |
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11 | # notice, this list of conditions and the following disclaimer. |
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12 | # - Redistributions in binary form must reproduce the above copyright |
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13 | # notice, this list of conditions and the following disclaimer in the |
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14 | # documentation and/or other materials provided with the distribution. |
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15 | # - The name of the author may not be used to endorse or promote products |
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16 | # derived from this software without specific prior written permission. |
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17 | # |
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18 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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19 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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20 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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21 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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22 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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23 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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24 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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25 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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26 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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27 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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28 | # |
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29 | |||
30 | #include <stack.h> |
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31 | |||
32 | .section BOOTSTRAP, "ax" |
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33 | |||
34 | .global start |
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35 | start: |
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36 | |||
37 | mov ar.rsc = r0 |
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38 | # movl r8 = (VRN_KERNEL << VRN_SHIFT) ;; |
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2519 | vana | 39 | movl r1 = 0x4400000 |
2511 | vana | 40 | movl r8 = initial_stack ;; |
41 | mov ar.bspstore = r8 |
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42 | loadrs |
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43 | |||
44 | # initialize memory stack to some sane value |
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45 | movl r12 = initial_stack_top ;; |
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46 | |||
47 | add r12 = -16, r12 /* allocate a scratch area on the stack */ |
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48 | |||
49 | # initialize gp (Global Pointer) register |
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50 | #movl r1 = _hardcoded_load_address |
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51 | |||
52 | ssm (1 << 19) ;; /* Disable f32 - f127 */ |
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53 | srlz.i |
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54 | srlz.d ;; |
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55 | |||
56 | movl r18 = bootstrap ;; |
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57 | mov b1 = r18 ;; |
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58 | br.call.sptk.many b0 = b1 |
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59 | |||
60 | |||
2558 | vana | 61 | .section .bss, "ax" |
2511 | vana | 62 | |
63 | .align 8192 |
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64 | |||
65 | initial_stack: |
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2559 | vana | 66 | .space 8192 |
2511 | vana | 67 | |
68 | .align 8192 |
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69 | initial_stack_top: |