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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_x64.c
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6 Description: Callback's Arguments VM - Implementation for x64
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7 License:
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8
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9 Copyright (c) 2007-2015 Daniel Adler <dadler@uni-goettingen.de>,
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10 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
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27
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28 #include "dyncall_args_x64.h"
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29
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30
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31 static int64* arg_i64(DCArgs* args)
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32 {
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33 if (args->reg_count.i < numIntRegs)
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34 return &args->reg_data.i[args->reg_count.i++];
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35 else
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36 return args->stack_ptr++;
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37 }
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38
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39
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40 static double* arg_f64(DCArgs* args)
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41 {
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42 if (args->reg_count.f < numFloatRegs)
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43 return &args->reg_data.f[args->reg_count.f++];
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44 else
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45 {
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46 return (double*)args->stack_ptr++;
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47 }
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48 }
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49
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50
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51 // ----------------------------------------------------------------------------
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52 // C API implementation:
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53
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54
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55 // base operations:
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56
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57 DClonglong dcbArgLongLong (DCArgs* p) { return *arg_i64(p); }
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58 DCint dcbArgInt (DCArgs* p) { return (int) dcbArgLongLong(p); }
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59 DClong dcbArgLong (DCArgs* p) { return (long) dcbArgLongLong(p); }
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60 DCchar dcbArgChar (DCArgs* p) { return (char) dcbArgLongLong(p); }
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61 DCshort dcbArgShort (DCArgs* p) { return (short) dcbArgLongLong(p); }
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62 DCbool dcbArgBool (DCArgs* p) { return (dcbArgInt(p) == 0) ? 0 : 1; }
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63
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64 DCuint dcbArgUInt (DCArgs* p) { return (DCuint) dcbArgInt(p); }
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65 DCuchar dcbArgUChar (DCArgs* p) { return (DCuchar) dcbArgChar(p); }
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66 DCushort dcbArgUShort (DCArgs* p) { return (DCushort) dcbArgShort(p); }
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67 DCulong dcbArgULong (DCArgs* p) { return (DCulong) dcbArgLong(p); }
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68 DCulonglong dcbArgULongLong(DCArgs* p) { return (DCulonglong) dcbArgLongLong(p); }
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69
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70
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71 DCpointer dcbArgPointer (DCArgs* p) { return (DCpointer) dcbArgLongLong(p); }
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72
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73 DCdouble dcbArgDouble (DCArgs* p) { return *arg_f64(p); }
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74 DCfloat dcbArgFloat (DCArgs* p) { return *(float*)arg_f64(p); }
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