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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1018 | decky | 1 | # |
| 2071 | jermar | 2 | # Copyright (c) 2006 Martin Decky |
| 1018 | decky | 3 | # All rights reserved. |
| 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 "regname.h" |
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| 30 | |||
| 3911 | decky | 31 | #define INITIAL_STACK 0x80040000 |
| 32 | #define MSIM_DORDER_ADDRESS 0x90000004 |
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| 1018 | decky | 33 | |
| 34 | .set noat |
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| 35 | .set noreorder |
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| 36 | .set nomacro |
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| 37 | |||
| 38 | .section BOOTSTRAP |
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| 39 | |||
| 40 | .global start |
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| 41 | start: |
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| 1685 | decky | 42 | |
| 3911 | decky | 43 | #ifdef MACHINE_msim |
| 44 | /* Read dorder value */ |
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| 45 | la $k0, MSIM_DORDER_ADDRESS |
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| 46 | lw $k0, ($k0) |
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| 47 | |||
| 48 | /* If we are not running on BSP |
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| 49 | end in an infinite loop */ |
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| 50 | beq $k0, $zero, bsp |
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| 1018 | decky | 51 | nop |
| 3911 | decky | 52 | |
| 53 | loop: |
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| 54 | j loop |
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| 55 | nop |
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| 56 | |||
| 57 | #endif |
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| 58 | |||
| 59 | bsp: |
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| 60 | /* Setup initial stack */ |
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| 61 | lui $sp, INITIAL_STACK >> 16 |
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| 62 | ori $sp, $sp, INITIAL_STACK & 0xffff |
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| 63 | |||
| 64 | j bootstrap |
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| 65 | nop |