Mercurial > pub > dyncall > dyncall
annotate dyncall/dyncall_call_mips_o32.S @ 457:90b1d927912a
- suite_aggrs: make sure random memory used doesn't ever result in NaN fp values (for every possible address), as this messes with result comparison
| author | Tassilo Philipp |
|---|---|
| date | Fri, 28 Jan 2022 14:11:21 +0100 |
| parents | 72b450cc3be8 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 | |
| 3 Package: dyncall | |
| 4 Library: dyncall | |
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5 File: dyncall/dyncall_call_mips_o32.S |
| 0 | 6 Description: mips "o32" abi call kernel implementation in GNU Assembler |
| 7 License: | |
| 8 | |
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9 Copyright (c) 2007-2018 Daniel Adler <dadler@uni-goettingen.de>, |
| 0 | 10 Tassilo Philipp <tphilipp@potion-studios.com> |
| 11 | |
| 12 Permission to use, copy, modify, and distribute this software for any | |
| 13 purpose with or without fee is hereby granted, provided that the above | |
| 14 copyright notice and this permission notice appear in all copies. | |
| 15 | |
| 16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
| 17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
| 18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
| 19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
| 20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
| 21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
| 22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
| 23 | |
| 24 */ | |
| 25 /* $4 target function */ | |
|
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26 /* $5 register data */ |
| 321 | 27 /* $6 stack size (guaranteed to be >= 16b and multiple of 8b) */ |
| 0 | 28 /* $7 stack data */ |
| 29 | |
| 30 | |
| 31 | |
| 32 .section .mdebug.abi32 | |
| 33 .previous | |
| 34 .abicalls | |
| 35 .text | |
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36 .align 2 |
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37 .globl dcCall_mips_o32 |
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38 .ent dcCall_mips_o32 |
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39 .type dcCall_mips_o32, @function |
| 0 | 40 dcCall_mips_o32: |
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41 .frame $fp,40,$31 /* vars=8, regs=2/0, args=16, gp=8 */ |
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42 .mask 0xc0000000,-4 |
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43 .fmask 0x00000000,0 |
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44 .set noreorder |
| 0 | 45 |
| 321 | 46 addiu $sp, $sp, -8 |
| 47 sw $31, 4($sp) /* save link register */ | |
| 48 sw $fp, 0($sp) /* save frame pointer */ | |
| 0 | 49 nop |
| 321 | 50 move $fp, $sp /* frame pointer = sp */ |
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51 sub $sp, $sp, $6 /* increment stack */ |
| 0 | 52 |
| 53 /* copy stack data */ | |
| 54 | |
| 55 /* $12 source pointer (parameter stack data) */ | |
| 56 /* $14 destination (stack pointer) */ | |
| 57 /* $6 byte count */ | |
| 58 | |
| 321 | 59 move $12, $7 |
| 60 move $14, $sp | |
| 0 | 61 |
| 62 .next: | |
| 321 | 63 beq $6, $0, .skip |
| 0 | 64 nop |
| 321 | 65 lw $2, 0($12) |
| 0 | 66 nop |
| 321 | 67 sw $2, 0($14) |
| 68 addiu $12, $12, 4 | |
| 69 addiu $14, $14, 4 | |
| 70 addiu $6, $6, -4 | |
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71 j .next |
| 0 | 72 nop |
| 73 .skip: | |
| 74 | |
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75 #if defined(DC__ABI_HARDFLOAT) |
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76 /* load two double-precision floating-point argument registers ($f12, $f14) - not for softfloat */ |
| 0 | 77 |
| 78 l.d $f12, 0($5) | |
| 79 l.d $f14, 8($5) | |
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80 #endif |
| 101 | 81 |
| 0 | 82 /* prepare call */ |
| 83 | |
| 321 | 84 move $12, $7 /* $12 stack data */ |
| 85 move $25, $4 /* $25 target function */ | |
| 0 | 86 |
| 87 /* load first four integer arguments ($4-$7) */ | |
| 88 | |
| 321 | 89 lw $4, 0($12) |
| 90 lw $5, 4($12) | |
| 91 lw $6, 8($12) | |
| 92 lw $7, 12($12) | |
| 0 | 93 |
| 94 /* call target function */ | |
| 95 | |
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96 jalr $25 |
| 0 | 97 nop |
| 321 | 98 move $sp, $fp /* restore stack pointer */ |
| 0 | 99 nop |
| 321 | 100 lw $31, 4($sp) /* restore return address */ |
| 101 lw $fp, 0($sp) /* restore frame pointer */ | |
| 102 addiu $sp, $sp, 8 /* end stack frame */ | |
| 103 j $31 /* return */ | |
| 0 | 104 nop |
| 105 | |
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106 .set reorder |
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107 .end dcCall_mips_o32 |
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108 .ident "handwritten" |
| 0 | 109 |