4.115
Last change
on this file since 305357e was
305357e,
checked in by Hesham ALMatary <heshamelmatary@…>, on 08/31/14 at 23:29:41
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or1k: Implement context validate and context volatile clobber functions.
score/cpu/or1k: Add two new assembly functions: _CPU_Context_validate
and _CPU_Context_volatile_clobber; their implementation follows
corresponding ARM functions.
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Property mode set to
100644
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File size:
681 bytes
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1 | /* |
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2 | * COPYRIGHT (c) 2014 Hesham ALMatary <heshamelmatary@gmail.com> |
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3 | * |
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4 | * The license and distribution terms for this file may be |
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5 | * found in the file LICENSE in this distribution or at |
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6 | * http://www.rtems.org/license/LICENSE. |
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7 | */ |
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8 | |
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9 | #ifdef HAVE_CONFIG_H |
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10 | #include "config.h" |
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11 | #endif |
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12 | |
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13 | #include <rtems/asm.h> |
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14 | |
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15 | .section .text |
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16 | |
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17 | PUBLIC(_CPU_Context_volatile_clobber) |
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18 | SYM(_CPU_Context_volatile_clobber): |
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19 | |
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20 | .macro clobber_register reg |
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21 | l.addi r0, r0, -1 |
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22 | l.addi \reg, r0, 0 |
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23 | .endm |
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24 | |
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25 | clobber_register r3 |
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26 | clobber_register r4 |
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27 | clobber_register r5 |
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28 | clobber_register r6 |
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29 | clobber_register r7 |
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30 | clobber_register r8 |
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31 | clobber_register r13 |
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32 | clobber_register r31 |
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33 | |
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34 | l.jr r9 |
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35 | l.nop |
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