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comparison dyncallback/dyncall_args_arm64_apple.c @ 0:3e629dc19168

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initial from svn dyncall-1745
author Daniel Adler
date Thu, 19 Mar 2015 22:24:28 +0100
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children f5577f6bf97a
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-1:000000000000 0:3e629dc19168
1 /*
2
3 Package: dyncall
4 Library: dyncallback
5 File: dyncallback/dyncall_args_arm64_apple.c
6 Description: Callback's Arguments VM - Implementation for Apple's ARM64 / ARMv8 / AAPCS64
7 License:
8
9 Copyright (c) 2015 Daniel Adler <dadler@uni-goettingen.de>,
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
26 #include "dyncall_args.h"
27
28 #include <stdint.h>
29
30 typedef union {
31 struct { double value; } d;
32 struct { float value; } f;
33 } DCFPU_t;
34
35 struct DCArgs
36 {
37 /* buffers and stack-pointer: */
38
39 uint64_t I[8];
40 DCFPU_t F[8];
41 uint8_t* sp;
42
43 /* counters: */
44 int i;
45 int f;
46 int s;
47 int reserved;
48 };
49
50 static inline uint8_t* align(uint8_t* p, size_t v)
51 {
52 return (uint8_t*) ( ( ( (ptrdiff_t) p ) + v - 1) & (ptrdiff_t) -v );
53 }
54
55
56 DClonglong dcbArgLongLong (DCArgs* p)
57 {
58 if (p->i < 8) {
59 return p->I[p->i++];
60 } else {
61 DClonglong value;
62 p->sp = align(p->sp,sizeof(DClonglong));
63 value = * ( (DClonglong*) p->sp );
64 p->sp += sizeof(DClonglong);
65 return value;
66 }
67 }
68 DCdouble dcbArgDouble (DCArgs* p) {
69 if (p->f < 8) {
70 return p->F[p->f++].d.value;
71 } else {
72 DCdouble value;
73 p->sp = align(p->sp,sizeof(DCdouble));
74 value = * ( (DCdouble*) p->sp );
75 p->sp += sizeof(DCdouble);
76 return value;
77 }
78 }
79 DCfloat dcbArgFloat (DCArgs* p) {
80 if (p->f < 8) {
81 return p->F[p->f++].f.value;
82 } else {
83 DCfloat value;
84 p->sp = align(p->sp,sizeof(DCfloat));
85 value = * ( (DCfloat*) p->sp );
86 p->sp += sizeof(DCfloat);
87 return value;
88 }
89 }
90
91 DClong dcbArgLong (DCArgs* p) {
92 if (p->i < 8) {
93 return (DClong) p->I[p->i++];
94 } else {
95 DClong value;
96 p->sp = align(p->sp,sizeof(DClong));
97 value = * ( (DClong*) p->sp );
98 p->sp += sizeof(DClong);
99 return value;
100 }
101 }
102
103 DCint dcbArgInt (DCArgs* p) {
104 if (p->i < 8) {
105 return (DCint) p->I[p->i++];
106 } else {
107 DCint value;
108 p->sp = align(p->sp,sizeof(DCint));
109 value = * ( (DCint*) p->sp );
110 p->sp += sizeof(DCint);
111 return value;
112 }
113 }
114
115 DCshort dcbArgShort (DCArgs* p) {
116 if (p->i < 8) {
117 return (DCshort) p->I[p->i++];
118 } else {
119 DCshort value;
120 p->sp = align(p->sp,sizeof(DCshort));
121 value = * ( (DCshort*) p->sp );
122 p->sp += sizeof(DCshort);
123 return value;
124 }
125 }
126
127 DCchar dcbArgChar (DCArgs* p) {
128 if (p->i < 8) {
129 return (DCchar) p->I[p->i++];
130 } else {
131 DCchar value;
132 p->sp = align(p->sp,sizeof(DCchar));
133 value = * ( (DCchar*) p->sp );
134 p->sp += sizeof(DCchar);
135 return value;
136 }
137 }
138
139 DCbool dcbArgBool (DCArgs* p) {
140 if (p->i < 8) {
141 return (DCbool) p->I[p->i++];
142 } else {
143 DCbool value;
144 p->sp = align(p->sp,sizeof(DCbool));
145 value = * ( (DCbool*) p->sp );
146 p->sp += sizeof(DCbool);
147 return value;
148 }
149 }
150
151 DCpointer dcbArgPointer(DCArgs* p) {
152 return (DCpointer) dcbArgLongLong(p);
153 }
154
155 DCuint dcbArgUInt (DCArgs* p) { return (DCuint) dcbArgInt(p); }
156 DCuchar dcbArgUChar (DCArgs* p) { return (DCuchar) dcbArgChar(p); }
157 DCushort dcbArgUShort (DCArgs* p) { return (DCushort) dcbArgShort(p); }
158 DCulong dcbArgULong (DCArgs* p) { return (DCulong) dcbArgLong(p); }
159 DCulonglong dcbArgULongLong(DCArgs* p) { return (DCulonglong) dcbArgLongLong(p); }
160