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annotate doc/disas_examples/ppc.darwin.disas @ 427:fb51dc714566

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- x64 struct by val disas examples
author Tassilo Philipp
date Mon, 17 Jan 2022 10:08:58 +0100
parents 74c056b597b7
children ead041d93e36
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1 ; #include <stdlib.h>
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2 ;
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3 ; void leaf_call(int b, int c, int d, int e, int f, int g, int h)
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4 ; {
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5 ; }
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6 ;
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7 ; void nonleaf_call(int a, int b, int c, int d, int e, int f, int g, int h)
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8 ; {
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9 ; /* use some local data */
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10 ; *(char*)alloca(220) = 'L';
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11 ; leaf_call(b, c, d, e, f, g, h);
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12 ; }
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13 ;
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14 ; int main()
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15 ; {
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16 ; nonleaf_call(0, 1, 2, 3, 4, 5, 6, 7);
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17 ; return 0;
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18 ; }
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19
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21
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22 ; output from darwin-8.0.1-ppc w/ gcc 3.3
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23
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24 _leaf_call:
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25 0: bf c1 ff f8 stmw 30, -8(1)
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26 4: 94 21 ff d0 stwu 1, -48(1)
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27 8: 7c 3e 0b 78 mr 30, 1
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28 c: 90 7e 00 48 stw 3, 72(30)
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29 10: 90 9e 00 4c stw 4, 76(30)
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30 14: 90 be 00 50 stw 5, 80(30)
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31 18: 90 de 00 54 stw 6, 84(30)
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32 1c: 90 fe 00 58 stw 7, 88(30)
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33 20: 91 1e 00 5c stw 8, 92(30)
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34 24: 91 3e 00 60 stw 9, 96(30)
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35 28: 80 21 00 00 lwz 1, 0(1)
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36 2c: bb c1 ff f8 lmw 30, -8(1)
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37 30: 4e 80 00 20 blr
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38
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39 _nonleaf_call:
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40 34: 7c 08 02 a6 mflr 0 ; | lr -> gpr0
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41 38: bf c1 ff f8 stmw 30, -8(1) ; | store gpr{30,31}
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42 3c: 90 01 00 08 stw 0, 8(1) ; | prolog store lr
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43 40: 94 21 ff b0 stwu 1, -80(1) ; | open frame and store sp at top of stack
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44 44: 7c 3e 0b 78 mr 30, 1 ; / sp -> gpr30, latter used for some fixed addressing below
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45 48: 90 7e 00 68 stw 3, 104(30) ; \
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46 4c: 90 9e 00 6c stw 4, 108(30) ; |
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47 50: 90 be 00 70 stw 5, 112(30) ; |
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48 54: 90 de 00 74 stw 6, 116(30) ; |
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49 58: 90 fe 00 78 stw 7, 120(30) ; | all in args -> spill area in prev frame
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50 5c: 91 1e 00 7c stw 8, 124(30) ; |
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51 60: 91 3e 00 80 stw 9, 128(30) ; |
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52 64: 91 5e 00 84 stw 10, 132(30) ; |
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53 68: 80 01 00 00 lwz 0, 0(1) ; fetch back-chain ptr (parent frame's sp) from stack of top by prolog -> gpr0, and ...
327
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54 6c: 94 01 ff 10 stwu 0, -240(1) ; ... update it further up the stack for alloca(220) - with padding to guarantee alignment
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55 70: 38 41 00 40 addi 2, 1, 64 ; |
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56 74: 38 02 00 0f addi 0, 2, 15 ; | start of alloca()'d memory -> gpr2, by ...
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57 78: 54 00 e1 3e srwi 0, 0, 4 ; | ... using gpr0 as helper to align to 16b, leaving at least 64b at top of stack
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58 7c: 54 02 20 36 slwi 2, 0, 4 ; |
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59 80: 38 00 00 4c li 0, 76 ; 'L' -> gpr0, and ...
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60 84: 98 02 00 00 stb 0, 0(2) ; ... store in local area (of alloca()'d space)
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61 88: 80 7e 00 6c lwz 3, 108(30) ; |
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62 8c: 80 9e 00 70 lwz 4, 112(30) ; |
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63 90: 80 be 00 74 lwz 5, 116(30) ; |
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64 94: 80 de 00 78 lwz 6, 120(30) ; | arg 0,1,2,3,4,5,6 (fetched from spill area from prev frame)
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65 98: 80 fe 00 7c lwz 7, 124(30) ; |
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66 9c: 81 1e 00 80 lwz 8, 128(30) ; |
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67 a0: 81 3e 00 84 lwz 9, 132(30) ; |
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68 a4: 4b ff ff 5d bl .+67108700 ; call and put return address -> lr
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69 a8: 80 21 00 00 lwz 1, 0(1) ; |
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70 ac: 80 01 00 08 lwz 0, 8(1) ; |
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71 b0: 7c 08 03 a6 mtlr 0 ; | epilog
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72 b4: bb c1 ff f8 lmw 30, -8(1) ; |
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73 b8: 4e 80 00 20 blr ; |
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74
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75 _main:
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76 bc: 7c 08 02 a6 mflr 0 ; |
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77 c0: bf c1 ff f8 stmw 30, -8(1) ; |
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78 c4: 90 01 00 08 stw 0, 8(1) ; | prolog
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79 c8: 94 21 ff b0 stwu 1, -80(1) ; |
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80 cc: 7c 3e 0b 78 mr 30, 1 ; |
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81 d0: 38 60 00 00 li 3, 0 ; arg 0
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82 d4: 38 80 00 01 li 4, 1 ; arg 1
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83 d8: 38 a0 00 02 li 5, 2 ; arg 2
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84 dc: 38 c0 00 03 li 6, 3 ; arg 3
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85 e0: 38 e0 00 04 li 7, 4 ; arg 4
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86 e4: 39 00 00 05 li 8, 5 ; arg 5
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87 e8: 39 20 00 06 li 9, 6 ; arg 6
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88 ec: 39 40 00 07 li 10, 7 ; arg 7
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89 f0: 4b ff ff 45 bl .+67108676 ; call and put return address -> lr
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90 f4: 38 00 00 00 li 0, 0 ; return value (pointlessly) via gpr0 ...
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91 f8: 7c 03 03 78 mr 3, 0 ; ... to gpr3
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92 fc: 80 21 00 00 lwz 1, 0(1) ; |
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93 100: 80 01 00 08 lwz 0, 8(1) ; |
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94 104: 7c 08 03 a6 mtlr 0 ; | epilog
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95 108: bb c1 ff f8 lmw 30, -8(1) ; |
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96 10c: 4e 80 00 20 blr ; |
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97
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98
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99
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100 ; ------------- more than 8 int args ----------->
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101
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102 ; #include <stdlib.h>
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103 ;
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104 ; void leaf_call(int b, int c, int d, int e, int f, int g, int h, int i, int j)
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105 ; {
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106 ; }
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107 ;
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108 ; void nonleaf_call(int a, int b, int c, int d, int e, int f, int g, int h, int i, int j)
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109 ; {
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110 ; /* use some local data */
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111 ; *(char*)alloca(220) = 'L';
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112 ; leaf_call(b, c, d, e, f, g, h, i, j);
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113 ; }
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114 ;
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115 ; int main()
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116 ; {
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117 ; nonleaf_call(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
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118 ; return 0;
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119 ; }
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120
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121
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122
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123 ; output from darwin-8.0.1-ppc w/ gcc 3.3
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124
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125 _leaf_call:
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126 0: bf c1 ff f8 stmw 30, -8(1)
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127 4: 94 21 ff d0 stwu 1, -48(1)
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128 8: 7c 3e 0b 78 mr 30, 1
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129 c: 90 7e 00 48 stw 3, 72(30)
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130 10: 90 9e 00 4c stw 4, 76(30)
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131 14: 90 be 00 50 stw 5, 80(30)
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132 18: 90 de 00 54 stw 6, 84(30)
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133 1c: 90 fe 00 58 stw 7, 88(30)
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134 20: 91 1e 00 5c stw 8, 92(30)
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135 24: 91 3e 00 60 stw 9, 96(30)
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136 28: 91 5e 00 64 stw 10, 100(30)
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137 2c: 80 21 00 00 lwz 1, 0(1)
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138 30: bb c1 ff f8 lmw 30, -8(1)
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139 34: 4e 80 00 20 blr
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140
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141 _nonleaf_call:
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142 38: 7c 08 02 a6 mflr 0 ; |
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143 3c: bf c1 ff f8 stmw 30, -8(1) ; |
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144 40: 90 01 00 08 stw 0, 8(1) ; | prolog
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145 44: 94 21 ff a0 stwu 1, -96(1) ; |
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146 48: 7c 3e 0b 78 mr 30, 1 ; /
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147 4c: 90 7e 00 78 stw 3, 120(30) ; \
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148 50: 90 9e 00 7c stw 4, 124(30) ; |
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149 54: 90 be 00 80 stw 5, 128(30) ; |
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150 58: 90 de 00 84 stw 6, 132(30) ; |
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151 5c: 90 fe 00 88 stw 7, 136(30) ; | in args 0,1,2,3,4,5,6,7 -> spill area in prev frame
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152 60: 91 1e 00 8c stw 8, 140(30) ; |
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153 64: 91 3e 00 90 stw 9, 144(30) ; |
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154 68: 91 5e 00 94 stw 10, 148(30) ; |
331
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155 6c: 80 01 00 00 lwz 0, 0(1) ; fetch back-chain ptr (parent frame's sp) from stack of top by prolog -> gpr0, and ...
327
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156 70: 94 01 ff 10 stwu 0, -240(1) ; ... update it further up the stack for alloca(220) - with padding to guarantee alignment
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157 74: 38 41 00 50 addi 2, 1, 80 ; |
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158 78: 38 02 00 0f addi 0, 2, 15 ; | start of alloca()'d memory -> gpr2, by ...
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159 7c: 54 00 e1 3e srwi 0, 0, 4 ; | ... using gpr0 as helper to align to 16b, leaving at least 64b at top of stack
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160 80: 54 02 20 36 slwi 2, 0, 4 ; |
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161 84: 38 00 00 4c li 0, 76 ; 'L' -> gpr0, and ...
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162 88: 98 02 00 00 stb 0, 0(2) ; ... store in local area (of alloca()'d space)
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163 8c: 80 1e 00 9c lwz 0, 156(30) ; arg 7 (fetched from stack param area from prev frame), and ...
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164 90: 90 01 00 38 stw 0, 56(1) ; ... "pushed" onto stack
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165 94: 80 7e 00 7c lwz 3, 124(30) ; |
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166 98: 80 9e 00 80 lwz 4, 128(30) ; |
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167 9c: 80 be 00 84 lwz 5, 132(30) ; |
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168 a0: 80 de 00 88 lwz 6, 136(30) ; | arg 0,1,2,3,4,5,6 (fetched from spill area from prev frame)
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169 a4: 80 fe 00 8c lwz 7, 140(30) ; |
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170 a8: 81 1e 00 90 lwz 8, 144(30) ; |
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171 ac: 81 3e 00 94 lwz 9, 148(30) ; |
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172 b0: 81 5e 00 98 lwz 10, 152(30) ; arg 7 (fetched from stack param area from prev frame)
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173 b4: 4b ff ff 4d bl .+67108684 ; call and put return address -> lr
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174 b8: 80 21 00 00 lwz 1, 0(1) ; |
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175 bc: 80 01 00 08 lwz 0, 8(1) ; |
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176 c0: 7c 08 03 a6 mtlr 0 ; | epilog
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177 c4: bb c1 ff f8 lmw 30, -8(1) ; |
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178 c8: 4e 80 00 20 blr ; |
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179
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180 _main:
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181 cc: 7c 08 02 a6 mflr 0 ; |
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182 d0: bf c1 ff f8 stmw 30, -8(1) ; |
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183 d4: 90 01 00 08 stw 0, 8(1) ; | prolog
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184 d8: 94 21 ff a0 stwu 1, -96(1) ; |
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185 dc: 7c 3e 0b 78 mr 30, 1 ; |
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186 e0: 38 00 00 08 li 0, 8 ; arg 8, ...
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187 e4: 90 01 00 38 stw 0, 56(1) ; ... "pushed" onto stack
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188 e8: 38 00 00 09 li 0, 9 ; arg 9, ...
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189 ec: 90 01 00 3c stw 0, 60(1) ; ... "pushed" onto stack
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190 f0: 38 60 00 00 li 3, 0 ; arg 0
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191 f4: 38 80 00 01 li 4, 1 ; arg 1
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192 f8: 38 a0 00 02 li 5, 2 ; arg 2
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193 fc: 38 c0 00 03 li 6, 3 ; arg 3
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194 100: 38 e0 00 04 li 7, 4 ; arg 4
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195 104: 39 00 00 05 li 8, 5 ; arg 5
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196 108: 39 20 00 06 li 9, 6 ; arg 6
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197 10c: 39 40 00 07 li 10, 7 ; arg 7
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198 110: 4b ff ff 29 bl .+67108648 ; call and put return address -> lr
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199 114: 38 00 00 00 li 0, 0 ; return value (pointlessly) via gpr0 ...
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200 118: 7c 03 03 78 mr 3, 0 ; ... to gpr3
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201 11c: 80 21 00 00 lwz 1, 0(1) ; |
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202 120: 80 01 00 08 lwz 0, 8(1) ; |
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203 124: 7c 08 03 a6 mtlr 0 ; | epilog
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204 128: bb c1 ff f8 lmw 30, -8(1) ; |
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205 12c: 4e 80 00 20 blr ; |
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206
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207
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208
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209 ; ------------- var args with ints and floats to see spilling (which remains only int regs), b/c doubles are passed via them and floats are promoted to doubles in (...) ----------->
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210
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211 ; #include <stdlib.h>
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212 ; #include <stdarg.h>
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213 ;
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214 ; void leaf_call(int b, int c, int d, int e, float f, float g, int h, int i, float j)
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215 ; {
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216 ; }
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217 ;
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218 ; void nonleaf_call(int a, ...)
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219 ; {
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220 ; int b, c, d, e, h, i;
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221 ; float f, g, j;
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222 ; va_list ap;
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223 ; va_start(ap, a);
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224 ; b = va_arg(ap, int);
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225 ; c = va_arg(ap, int);
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226 ; d = va_arg(ap, int);
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227 ; e = va_arg(ap, int);
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228 ; f = (float)va_arg(ap, double);
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229 ; g = (float)va_arg(ap, double);
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230 ; h = va_arg(ap, int);
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231 ; i = va_arg(ap, int);
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232 ; j = (float)va_arg(ap, double);
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233 ; /* use some local data */
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234 ; *(char*)alloca(220) = 'L';
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235 ; leaf_call(b, c, d, e, f, g, h, i, j);
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236 ; }
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237 ;
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238 ; int main()
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239 ; {
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240 ; nonleaf_call(0, 1, 2, 3, 4, 5.f, 6.f, 7, 8, 9.f);
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241 ; return 0;
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242 ; }
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243
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244
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245
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246 ; output from darwin-8.0.1-ppc w/ gcc 3.3
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247
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248 _leaf_call:
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249 0: bf c1 ff f8 stmw 30, -8(1)
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250 4: 94 21 ff d0 stwu 1, -48(1)
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251 8: 7c 3e 0b 78 mr 30, 1
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252 c: 90 7e 00 48 stw 3, 72(30)
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253 10: 90 9e 00 4c stw 4, 76(30)
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254 14: 90 be 00 50 stw 5, 80(30)
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255 18: 90 de 00 54 stw 6, 84(30)
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256 1c: d0 3e 00 58 stfs 1, 88(30)
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257 20: d0 5e 00 5c stfs 2, 92(30)
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258 24: 91 3e 00 60 stw 9, 96(30)
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259 28: 91 5e 00 64 stw 10, 100(30)
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260 2c: d0 7e 00 68 stfs 3, 104(30)
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261 30: 80 21 00 00 lwz 1, 0(1)
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262 34: bb c1 ff f8 lmw 30, -8(1)
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263 38: 4e 80 00 20 blr
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264
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265 _nonleaf_call:
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266 3c: 7c 08 02 a6 mflr 0 ; |
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267 40: bf c1 ff f8 stmw 30, -8(1) ; |
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268 44: 90 01 00 08 stw 0, 8(1) ; | prolog
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269 48: 94 21 ff 70 stwu 1, -144(1) ; |
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270 4c: 7c 3e 0b 78 mr 30, 1 ; /
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271 50: 90 9e 00 ac stw 4, 172(30) ; \
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272 54: 90 be 00 b0 stw 5, 176(30) ; |
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273 58: 90 de 00 b4 stw 6, 180(30) ; |
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274 5c: 90 fe 00 b8 stw 7, 184(30) ; |
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275 60: 91 1e 00 bc stw 8, 188(30) ; | in args ,1,2,3,4,5,6,7 -> spill area in prev frame
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276 64: 91 3e 00 c0 stw 9, 192(30) ; |
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277 68: 91 5e 00 c4 stw 10, 196(30) ; |
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278 6c: 90 7e 00 a8 stw 3, 168(30) ; | <- this is in arg 0, the only named arg
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279 70: 38 1e 00 ac addi 0, 30, 172 ; get pointer to first unnamed arg in gpr0 for vararg iteration, ...
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280 74: 90 1e 00 74 stw 0, 116(30) ; ... and store read ptr in local area
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281 78: 81 3e 00 74 lwz 9, 116(30) ; \ read ptr -> gpr0
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282 7c: 80 5e 00 74 lwz 2, 116(30) ; | use gpr2 as helper ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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283 80: 38 02 00 04 addi 0, 2, 4 ; | ... to increment read ptr ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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284 84: 90 1e 00 74 stw 0, 116(30) ; | in arg 1 ... and restore
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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285 88: 80 09 00 00 lwz 0, 0(9) ; | load in arg 1, and ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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286 8c: 90 1e 00 50 stw 0, 80(30) ; / ... store in temp space in local area
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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287 90: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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288 94: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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289 98: 38 02 00 04 addi 0, 2, 4 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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290 9c: 90 1e 00 74 stw 0, 116(30) ; | in arg 2
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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291 a0: 80 09 00 00 lwz 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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292 a4: 90 1e 00 54 stw 0, 84(30) ; /
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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293 a8: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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294 ac: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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295 b0: 38 02 00 04 addi 0, 2, 4 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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296 b4: 90 1e 00 74 stw 0, 116(30) ; | in arg 3
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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297 b8: 80 09 00 00 lwz 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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298 bc: 90 1e 00 58 stw 0, 88(30) ; /
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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299 c0: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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300 c4: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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301 c8: 38 02 00 04 addi 0, 2, 4 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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302 cc: 90 1e 00 74 stw 0, 116(30) ; | in arg 4
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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303 d0: 80 09 00 00 lwz 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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304 d4: 90 1e 00 5c stw 0, 92(30) ; /
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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305 d8: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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306 dc: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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307 e0: 38 02 00 08 addi 0, 2, 8 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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308 e4: 90 1e 00 74 stw 0, 116(30) ; | in arg 5 (float, promoted to double)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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309 e8: c8 09 00 00 lfd 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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310 ec: fc 00 00 18 frsp 0, 0 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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311 f0: d0 1e 00 68 stfs 0, 104(30) ; /
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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312 f4: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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313 f8: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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314 fc: 38 02 00 08 addi 0, 2, 8 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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315 100: 90 1e 00 74 stw 0, 116(30) ; | in arg 6 (float, promoted to double)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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316 104: c8 09 00 00 lfd 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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317 108: fc 00 00 18 frsp 0, 0 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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318 10c: d0 1e 00 6c stfs 0, 108(30) ; /
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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319 110: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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320 114: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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321 118: 38 02 00 04 addi 0, 2, 4 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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322 11c: 90 1e 00 74 stw 0, 116(30) ; | in arg 7
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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323 120: 80 09 00 00 lwz 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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324 124: 90 1e 00 60 stw 0, 96(30) ; /
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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325 128: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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326 12c: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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327 130: 38 02 00 04 addi 0, 2, 4 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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328 134: 90 1e 00 74 stw 0, 116(30) ; | in arg 8
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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329 138: 80 09 00 00 lwz 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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330 13c: 90 1e 00 64 stw 0, 100(30) ; /
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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331 140: 81 3e 00 74 lwz 9, 116(30) ; \
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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332 144: 80 5e 00 74 lwz 2, 116(30) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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333 148: 38 02 00 08 addi 0, 2, 8 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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334 14c: 90 1e 00 74 stw 0, 116(30) ; | in arg 9 (float, promoted to double)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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335 150: c8 09 00 00 lfd 0, 0(9) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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336 154: fc 00 00 18 frsp 0, 0 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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337 158: d0 1e 00 70 stfs 0, 112(30) ; /
331
74c056b597b7 - disassembly example annotations
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diff changeset
338 15c: 80 01 00 00 lwz 0, 0(1) ; fetch back-chain ptr (parent frame's sp) from stack of top by prolog -> gpr0, and ...
327
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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339 160: 94 01 ff 10 stwu 0, -240(1) ; ... update it further up the stack for alloca
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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340 164: 38 41 00 50 addi 2, 1, 80 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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341 168: 38 02 00 0f addi 0, 2, 15 ; | start of alloca()'d memory -> gpr2, by ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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342 16c: 54 00 e1 3e srwi 0, 0, 4 ; | ... using gpr0 as helper to align to 16b, l
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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343 170: 54 02 20 36 slwi 2, 0, 4 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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344 174: 38 00 00 4c li 0, 76 ; 'L' -> gpr0, and ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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345 178: 98 02 00 00 stb 0, 0(2) ; ... store in local area (of alloca()'d space)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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346 17c: 80 7e 00 50 lwz 3, 80(30) ; arg 0
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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347 180: 80 9e 00 54 lwz 4, 84(30) ; arg 1
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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348 184: 80 be 00 58 lwz 5, 88(30) ; arg 2
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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349 188: 80 de 00 5c lwz 6, 92(30) ; arg 3
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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350 18c: c0 3e 00 68 lfs 1, 104(30) ; arg 4 (float)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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351 190: c0 5e 00 6c lfs 2, 108(30) ; arg 5 (float)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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352 194: 81 3e 00 60 lwz 9, 96(30) ; arg 6
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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353 198: 81 5e 00 64 lwz 10, 100(30) ; arg 7
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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354 19c: c0 7e 00 70 lfs 3, 112(30) ; arg 8 (float)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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355 1a0: 4b ff fe 61 bl .+67108448 ; call and put return address -> lr
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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356 1a4: 80 21 00 00 lwz 1, 0(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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357 1a8: 80 01 00 08 lwz 0, 8(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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358 1ac: 7c 08 03 a6 mtlr 0 ; | epilog
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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359 1b0: bb c1 ff f8 lmw 30, -8(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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360 1b4: 4e 80 00 20 blr ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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361
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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362 _main:
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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363 1b8: 7c 08 02 a6 mflr 0 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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364 1bc: bf c1 ff f8 stmw 30, -8(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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365 1c0: 90 01 00 08 stw 0, 8(1) ; | prolog
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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366 1c4: 94 21 ff 90 stwu 1, -112(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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367 1c8: 7c 3e 0b 78 mr 30, 1 ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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368 1cc: 42 9f 00 05 bcl 20, 31, .+4 ; ppc way to get PC in ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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369 1d0: 7f e8 02 a6 mflr 31 ; ... gpr31
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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370 1d4: 38 00 00 07 li 0, 7 ; arg 7, ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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371 1d8: 90 01 00 3c stw 0, 60(1) ; ... "pushed" onto stack
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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372 1dc: 38 00 00 08 li 0, 8 ; arg 8, ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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373 1e0: 90 01 00 40 stw 0, 64(1) ; ... "pushed" onto stack
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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374 1e4: 3c 40 40 22 lis 2, 16418 ; | arg 9, top-half (double b/c of vararg), and ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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375 1e8: 38 60 00 00 li 3, 0 ; | ... bottom-half ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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376 1ec: 90 41 00 44 stw 2, 68(1) ; | ... "pushed" into stack
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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377 1f0: 90 61 00 48 stw 3, 72(1) ; | "
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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378 1f4: 38 00 00 00 li 0, 0 ; arg 6, bottom-half, ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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379 1f8: 90 01 00 38 stw 0, 56(1) ; ... "pushed" onto stack (first word in param area, top-half passed via gpr10, see below)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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380 1fc: 38 60 00 00 li 3, 0 ; arg 0
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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381 200: 38 80 00 01 li 4, 1 ; arg 1
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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382 204: 38 a0 00 02 li 5, 2 ; arg 2
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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383 208: 38 c0 00 03 li 6, 3 ; arg 3
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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384 20c: 38 e0 00 04 li 7, 4 ; arg 4
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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385 210: 3d 20 40 14 lis 9, 16404 ; | prep arg 5 (double b/c of vararg) for move to arg reg later: top-half -> gpr9
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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386 214: 39 40 00 00 li 10, 0 ; | bottom-half -> gpr10
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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387 218: 3c 5f 00 00 addis 2, 31, 0 ; PC -> gpr2, to ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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388 21c: c8 02 00 98 lfd 0, 152(2) ; ... load some static data (arg 5, the float) stored right after this function -> gpr0
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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389 220: 7d 28 4b 78 mr 8, 9 ; arg 5, top-half
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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390 224: 7d 49 53 78 mr 9, 10 ; arg 5, bottom-half
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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391 228: fc 20 00 90 fmr 1, 0 ; arg 5 in 1st fp reg
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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392 22c: 3d 60 40 18 lis 11, 16408 ; | prep arg 6 (double b/c of vararg) for move to arg reg later: top-half -> gpr11
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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393 230: 39 80 00 00 li 12, 0 ; | bottom-half -> gpr12 (this one is pointless, unused, bottom-half already placed on stack)
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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394 234: 3c 5f 00 00 addis 2, 31, 0 ; PC -> gpr2, to ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
Tassilo Philipp
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395 238: c8 02 00 a0 lfd 0, 160(2) ; ... load some static data (arg 6, the 2nd float) stored right after this function -> gpr0
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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396 23c: 7d 6a 5b 78 mr 10, 11 ; arg 6, top-half
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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397 240: fc 40 00 90 fmr 2, 0 ; arg 5 in 2nd fp reg
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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398 244: c8 01 00 44 lfd 0, 68(1) ; arg 9, ...
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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399 248: fc 60 00 90 fmr 3, 0 ; ... -> 3rd fp reg
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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400 24c: 4b ff fd f1 bl .+67108336 ; call and put return address -> lr
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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401 250: 7c 03 03 78 mr 3, 0 ; return value @@@unsure why gpr0 is guaranteed to be 0 here
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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402 254: 80 21 00 00 lwz 1, 0(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
Tassilo Philipp
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403 258: 80 01 00 08 lwz 0, 8(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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404 25c: 7c 08 03 a6 mtlr 0 ; | epilog
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
Tassilo Philipp
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405 260: bb c1 ff f8 lmw 30, -8(1) ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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406 264: 4e 80 00 20 blr ; |
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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diff changeset
407
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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408 ; vim: ft=asm
c0390dc85a07 - doc: added disassembly examples for many platforms and calling conventions, for reference
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409