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| Rev | Author | Line No. | Line |
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| 499 | 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 | |||
| 1656 | cejka | 29 | /** @addtogroup libcmips32 mips32 |
| 30 | * @brief mips32 architecture dependent parts of libc |
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| 31 | * @ingroup lc |
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| 32 | * @{ |
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| 33 | */ |
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| 34 | /** @file |
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| 35 | */ |
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| 36 | |||
| 499 | decky | 37 | #include <libc.h> |
| 38 | |||
| 954 | palkovsky | 39 | sysarg_t __syscall(const sysarg_t p1, const sysarg_t p2, |
| 960 | palkovsky | 40 | const sysarg_t p3, const sysarg_t p4, |
| 41 | const syscall_t id) |
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| 499 | decky | 42 | { |
| 505 | decky | 43 | register sysarg_t __mips_reg_a0 asm("$4") = p1; |
| 44 | register sysarg_t __mips_reg_a1 asm("$5") = p2; |
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| 45 | register sysarg_t __mips_reg_a2 asm("$6") = p3; |
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| 960 | palkovsky | 46 | register sysarg_t __mips_reg_a3 asm("$7") = p4; |
| 1095 | palkovsky | 47 | register sysarg_t __mips_reg_v0 asm("$2") = id; |
| 499 | decky | 48 | |
| 49 | asm volatile ( |
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| 50 | "syscall\n" |
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| 504 | decky | 51 | : "=r" (__mips_reg_v0) |
| 499 | decky | 52 | : "r" (__mips_reg_a0), |
| 53 | "r" (__mips_reg_a1), |
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| 54 | "r" (__mips_reg_a2), |
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| 960 | palkovsky | 55 | "r" (__mips_reg_a3), |
| 1095 | palkovsky | 56 | "r" (__mips_reg_v0) |
| 1098 | palkovsky | 57 | : "%ra" /* We are a function call, although C does not |
| 58 | * know it */ |
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| 499 | decky | 59 | ); |
| 504 | decky | 60 | |
| 61 | return __mips_reg_v0; |
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| 499 | decky | 62 | } |
| 1656 | cejka | 63 | |
| 64 | /** @} |
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| 65 | */ |
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| 66 |