annotate gcc/config/picochip/libgccExtras/ashlsi3.asm @ 67:f6334be47118

update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
author nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
date Tue, 22 Mar 2011 17:18:12 +0900
parents a06113de4d67
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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kent <kent@cr.ie.u-ryukyu.ac.jp>
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1 // picoChip ASM file
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2 // picoChip ASM file
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3 //
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4 // Support for 32-bit arithmetic shift left.
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5 //
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6 // Copyright (C) 2003, 2004, 2005, 2008, 2009 Free Software Foundation, Inc.
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f6334be47118 update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
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7 // Contributed by Picochip Ltd.
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8 // Maintained by Hariharan Sandanagobalane (hariharan@picochip.com)
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9 //
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10 // This file is free software; you can redistribute it and/or modify it
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11 // under the terms of the GNU General Public License as published by the
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12 // Free Software Foundation; either version 3, or (at your option) any
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13 // later version.
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14 //
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15 // This file is distributed in the hope that it will be useful, but
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16 // WITHOUT ANY WARRANTY; without even the implied warranty of
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17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 // General Public License for more details.
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19 //
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20 // Under Section 7 of GPL version 3, you are granted additional
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21 // permissions described in the GCC Runtime Library Exception, version
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22 // 3.1, as published by the Free Software Foundation.
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23 //
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24 // You should have received a copy of the GNU General Public License and
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25 // a copy of the GCC Runtime Library Exception along with this program;
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26 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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27 // <http://www.gnu.org/licenses/>.
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28
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29 .section .text
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30
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31 .global ___ashlsi3
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32 ___ashlsi3:
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33 _picoMark_FUNCTION_BEGIN=
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34 // picoChip Function Prologue : &___ashlsi3 = 0 bytes
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35
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36 // if (R2 > 15) goto _L2
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37 SUB.0 15,R2,r15
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38 JMPLT _L2
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39 =-> SUB.0 16,R2,R5 // R5 := R5 - R4 (HI)
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40
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41 LSL.0 R1,R2,R1 // R3 := R1 << R2
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42 LSL.0 R0,R2,R4 // R2 := R0 << R2
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43
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44 LSR.0 R0,R5,R5 // R5 := R12 >> R5 NEED TO CHECK - HARI
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45 OR.0 R5,R1,R5 // R3 := R5 IOR R0 (HI)
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46 SUB.0 R2,0,r15
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47 COPYNE R5,R1
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48 JR (R12) // Return to caller
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49 =-> COPY.0 R4,R0
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50
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51 _L2:
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52 LSL.0 R0,R2,R1 // R3 := R0 << R2
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53 JR (R12) // Return to caller
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54 =-> COPY.0 0,R0 // R2 := 0 (short constant)
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55
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56 _picoMark_FUNCTION_END=
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57
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58 // picoChip Function Epilogue : __ashlsi3
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59
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60 //============================================================================
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61 // All DWARF information between this marker, and the END OF DWARF
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62 // marker should be included in the source file. Search for
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63 // FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
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64 // provide the relevent information. Add markers called
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65 // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
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66 // function in question.
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67 //============================================================================
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68
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69 //============================================================================
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70 // Frame information.
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71 //============================================================================
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72
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73 .section .debug_frame
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74 _picoMark_DebugFrame=
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75
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76 // Common CIE header.
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77 .unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
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78 _picoMark_CieBegin=
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79 .unalignedInitLong 0xffffffff
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80 .initByte 0x1 // CIE Version
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81 .ascii 16#0# // CIE Augmentation
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82 .uleb128 0x1 // CIE Code Alignment Factor
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83 .sleb128 2 // CIE Data Alignment Factor
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84 .initByte 0xc // CIE RA Column
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85 .initByte 0xc // DW_CFA_def_cfa
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86 .uleb128 0xd
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87 .uleb128 0x0
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88 .align 2
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89 _picoMark_CieEnd=
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90
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91 // FDE
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92 _picoMark_LSFDE0I900821033007563=
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93 .unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
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94 _picoMark_FdeBegin=
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95 .unalignedInitLong _picoMark_DebugFrame // FDE CIE offset
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96 .unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location
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97 .unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
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98 .initByte 0xe // DW_CFA_def_cfa_offset
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99 .uleb128 0x0 // <-- FUNCTION_STACK_SIZE_GOES_HERE
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100 .initByte 0x4 // DW_CFA_advance_loc4
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101 .unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
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102 .initByte 0xe // DW_CFA_def_cfa_offset
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103 .uleb128 0x0
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104 .align 2
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105 _picoMark_FdeEnd=
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106
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107 //============================================================================
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108 // Abbrevation information.
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109 //============================================================================
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110
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111 .section .debug_abbrev
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112 _picoMark_ABBREVIATIONS=
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113
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114 .section .debug_abbrev
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115 .uleb128 0x1 // (abbrev code)
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116 .uleb128 0x11 // (TAG: DW_TAG_compile_unit)
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117 .initByte 0x1 // DW_children_yes
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118 .uleb128 0x10 // (DW_AT_stmt_list)
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119 .uleb128 0x6 // (DW_FORM_data4)
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120 .uleb128 0x12 // (DW_AT_high_pc)
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121 .uleb128 0x1 // (DW_FORM_addr)
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122 .uleb128 0x11 // (DW_AT_low_pc)
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123 .uleb128 0x1 // (DW_FORM_addr)
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124 .uleb128 0x25 // (DW_AT_producer)
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125 .uleb128 0x8 // (DW_FORM_string)
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126 .uleb128 0x13 // (DW_AT_language)
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127 .uleb128 0x5 // (DW_FORM_data2)
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128 .uleb128 0x3 // (DW_AT_name)
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129 .uleb128 0x8 // (DW_FORM_string)
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130 .initByte 0x0
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131 .initByte 0x0
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132
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133 .uleb128 0x2 ;# (abbrev code)
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134 .uleb128 0x2e ;# (TAG: DW_TAG_subprogram)
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135 .initByte 0x0 ;# DW_children_no
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136 .uleb128 0x3 ;# (DW_AT_name)
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137 .uleb128 0x8 ;# (DW_FORM_string)
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138 .uleb128 0x11 ;# (DW_AT_low_pc)
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139 .uleb128 0x1 ;# (DW_FORM_addr)
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140 .uleb128 0x12 ;# (DW_AT_high_pc)
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141 .uleb128 0x1 ;# (DW_FORM_addr)
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142 .initByte 0x0
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143 .initByte 0x0
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144
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145 .initByte 0x0
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146
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147 //============================================================================
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148 // Line information. DwarfLib requires this to be present, but it can
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149 // be empty.
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150 //============================================================================
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151
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152 .section .debug_line
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153 _picoMark_LINES=
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154
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155 //============================================================================
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156 // Debug Information
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157 //============================================================================
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158 .section .debug_info
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159
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160 //Fixed header.
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161 .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
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162 _picoMark_DEBUG_INFO_BEGIN=
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163 .unalignedInitWord 0x2
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164 .unalignedInitLong _picoMark_ABBREVIATIONS
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165 .initByte 0x2
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166
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167 // Compile unit information.
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168 .uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit)
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169 .unalignedInitLong _picoMark_LINES
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170 .unalignedInitWord _picoMark_FUNCTION_END
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171 .unalignedInitWord _picoMark_FUNCTION_BEGIN
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172 // Producer is `picoChip'
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173 .ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
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174 .unalignedInitWord 0xcafe // ASM language
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175 .ascii 16#0# // Name. DwarfLib expects this to be present.
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176
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177 .uleb128 0x2 ;# (DIE DW_TAG_subprogram)
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178
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179 // FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
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180 // digit is specified using the format 16#XX#
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181 .ascii 16#5f# 16#61# 16#73# 16#68# 16#6c# 16#73# 16#69# 16#33# 16#0# // Function name `_ashlsi3'
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182 .unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc
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183 .unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc
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184
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185 .initByte 0x0 // end of compile unit children.
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186
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187 _picoMark_DEBUG_INFO_END=
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188
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189 //============================================================================
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190 // END OF DWARF
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191 //============================================================================
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192
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193 .section .endFile