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199 | decky | 1 | # |
2 | # Copyright (C) 2005 Martin Decky |
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3 | # All rights reserved. |
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4 | # |
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5 | # Redistribution and use in source and binary forms, with or without |
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6 | # modification, are permitted provided that the following conditions |
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7 | # are met: |
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8 | # |
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9 | # - Redistributions of source code must retain the above copyright |
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10 | # notice, this list of conditions and the following disclaimer. |
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11 | # - Redistributions in binary form must reproduce the above copyright |
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12 | # notice, this list of conditions and the following disclaimer in the |
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13 | # documentation and/or other materials provided with the distribution. |
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14 | # - The name of the author may not be used to endorse or promote products |
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15 | # derived from this software without specific prior written permission. |
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16 | # |
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17 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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18 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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19 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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20 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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21 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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22 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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23 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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24 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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25 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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26 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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27 | # |
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28 | |||
29 | #include <arch/asm/macro.h> |
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30 | |||
31 | .text |
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32 | |||
414 | jermar | 33 | .global context_save_arch |
34 | .global context_restore_arch |
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199 | decky | 35 | |
414 | jermar | 36 | context_save_arch: |
199 | decky | 37 | REGISTERS_STORE r3 |
38 | |||
39 | mflr r3 |
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40 | stw r3, 128(r3) |
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41 | |||
42 | # context_save returns 1 |
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43 | li r3, 1 |
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44 | blr |
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45 | |||
414 | jermar | 46 | context_restore_arch: |
199 | decky | 47 | REGISTERS_LOAD r3 |
48 | |||
49 | lwz r3, 128(r3) |
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50 | mtlr r3 |
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51 | |||
52 | # context_restore returns 0 |
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53 | li r3, 0 |
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54 | blr |