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annotate dyncallback/dyncall_args_ppc64.c @ 544:111236b31c75

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- C++ non-trivial aggregate-by-value handling: * dyncallback support for dcbArgAggr() * better doc
author Tassilo Philipp
date Tue, 31 May 2022 18:25:13 +0200
parents 71c884e610f0
children 2562c89d5bb5
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1 /*
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2
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3 Package: dyncall
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4 Library: dyncallback
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5 File: dyncallback/dyncall_args_ppc64.c
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6 Description: Callback's Arguments VM - Implementation for ppc64
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7 License:
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8
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9 Copyright (c) 2014-2015 Masanori Mitsugi <mitsugi@linux.vnet.ibm.com>,
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10 2022 Tassilo Philipp <tphilipp@potion-studios.com>
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11
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12 Permission to use, copy, modify, and distribute this software for any
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13 purpose with or without fee is hereby granted, provided that the above
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14 copyright notice and this permission notice appear in all copies.
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15
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16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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23
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24 */
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25
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26 #include "dyncall_args_ppc64.h"
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27
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28 DCint dcbArgInt (DCArgs* p) { return (DCint) dcbArgLongLong(p); }
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29 DCuint dcbArgUInt (DCArgs* p) { return (DCuint) dcbArgLongLong(p); }
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30 DCulonglong dcbArgULongLong(DCArgs* p) { return (DCulonglong) dcbArgLongLong(p); }
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31
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32 DClonglong dcbArgLongLong(DCArgs* p)
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33 {
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34 DClonglong value;
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35 if (p->ireg_count < 8) {
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36 value = p->ireg_data[p->ireg_count++];
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37 } else {
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38 value = *( (long long*) p->stackptr );
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39 }
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40 p->stackptr += sizeof(long long);
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41 return value;
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42 }
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43
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44 DClong dcbArgLong (DCArgs* p) { return (DClong) dcbArgLongLong(p); }
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45 DCulong dcbArgULong (DCArgs* p) { return (DCulong) dcbArgLongLong(p); }
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46 DCchar dcbArgChar (DCArgs* p) { return (DCchar) dcbArgLongLong(p); }
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47 DCuchar dcbArgUChar (DCArgs* p) { return (DCuchar) dcbArgLongLong(p); }
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48 DCshort dcbArgShort (DCArgs* p) { return (DCshort) dcbArgLongLong(p); }
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49 DCushort dcbArgUShort (DCArgs* p) { return (DCushort)dcbArgLongLong(p); }
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50 DCbool dcbArgBool (DCArgs* p) { return (DCbool) dcbArgLongLong(p); }
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51
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52 DCpointer dcbArgPointer (DCArgs* p) { return (DCpointer)dcbArgLongLong(p); }
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53
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54 DCdouble dcbArgDouble (DCArgs* p)
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55 {
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56 DCdouble result;
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57
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58 if (p->freg_count < 13) {
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59 result = p->freg_data[p->freg_count++];
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60 if (p->ireg_count < 8) {
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61 p->ireg_count++;
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62 }
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63 } else {
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64 result = * ( (double*) p->stackptr );
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65 }
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66
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67 p->stackptr += sizeof(double);
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68 return result;
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69 }
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70
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71 DCfloat dcbArgFloat (DCArgs* p)
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72 {
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73 DCfloat result;
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74
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75 #if defined(DC__Endian_BIG)
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76 struct sf { DCfloat f_pad; DCfloat f; } sf;
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77 #else /* Endian_LITTLE */
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78 struct sf { DCfloat f; DCfloat f_pad; } sf;
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79 #endif
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81 if (p->freg_count < 13) {
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82 result = (float)p->freg_data[p->freg_count++];
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83 if (p->ireg_count < 8) {
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84 p->ireg_count++;
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85 }
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86 } else {
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87 sf = * ( (struct sf*) p->stackptr );
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88 result = sf.f;
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89 }
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90
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91 p->stackptr += sizeof(double);
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92 return result;
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93 }
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95 DCpointer dcbArgAggr (DCArgs* p, DCpointer target) { /* @@@AGGR not impl */ }
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96 void dcbReturnAggr (DCArgs *args, DCValue *result, DCpointer ret) { /* @@@AGGR not impl */ }
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97