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0
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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_arm64.c
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6 Description: Callback's Arguments VM - Implementation for ARM64 / ARMv8 / AAPCS64
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7 License:
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8
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281
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9 Copyright (c) 2015-2018 Daniel Adler <dadler@uni-goettingen.de>,
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10 Tassilo Philipp <tphilipp@potion-studios.com>
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0
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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 #include "dyncall_args.h"
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26
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27 #include <stdint.h>
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28
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29 typedef union {
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30 struct { double value; } d;
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31 struct { float value; } f;
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32 } DCFPU_t;
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33
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34 struct DCArgs
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35 {
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36 /* buffers and stack-pointer: */
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37
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38 uint64_t I[8];
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39 DCFPU_t F[8];
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40 uint64_t* sp;
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41
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42 /* counters: */
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43 int i;
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44 int f;
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45 int s;
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46 int reserved;
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47 };
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48
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49 DClonglong dcbArgLongLong (DCArgs* p)
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50 {
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51 if (p->i < 8) {
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52 return p->I[p->i++];
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53 } else {
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54 return *(p->sp)++;
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55 }
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56 }
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57 DCdouble dcbArgDouble (DCArgs* p) {
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58 return (p->f < 8) ? p->F[p->f++].d.value : * ( (double*) (p->sp++) );
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59 }
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60 DCfloat dcbArgFloat (DCArgs* p) {
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61 return (p->f < 8) ? p->F[p->f++].f.value : * ( (float*) (p->sp++) );
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62 }
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63
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64
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65 DClong dcbArgLong (DCArgs* p) { return (DClong) dcbArgLongLong(p); }
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66 DCint dcbArgInt (DCArgs* p) { return (DCint) dcbArgLongLong(p); }
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67 DCshort dcbArgShort (DCArgs* p) { return (DCshort) dcbArgLongLong(p); }
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68 DCchar dcbArgChar (DCArgs* p) { return (DCchar) dcbArgLongLong(p); }
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69 DCbool dcbArgBool (DCArgs* p) { return dcbArgLongLong(p) & 0x1; }
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70 DCpointer dcbArgPointer(DCArgs* p) { return (DCpointer) dcbArgLongLong(p); }
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71
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72 DCuint dcbArgUInt (DCArgs* p) { return (DCuint) dcbArgInt(p); }
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73 DCuchar dcbArgUChar (DCArgs* p) { return (DCuchar) dcbArgChar(p); }
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74 DCushort dcbArgUShort (DCArgs* p) { return (DCushort) dcbArgShort(p); }
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75 DCulong dcbArgULong (DCArgs* p) { return (DCulong) dcbArgLong(p); }
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76 DCulonglong dcbArgULongLong(DCArgs* p) { return (DCulonglong) dcbArgLongLong(p); }
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77
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