Mercurial > hg > CbC > CbC_gcc
annotate gcc/config/picochip/libgccExtras/ashrsi3.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 |
| rev | line source |
|---|---|
| 0 | 1 // picoChip ASM file |
| 2 // | |
| 3 // Support for 32-bit arithmetic shift right. | |
| 4 // | |
| 5 // Copyright (C) 2003, 2004, 2005, 2008, 2009 Free Software Foundation, Inc. | |
|
67
f6334be47118
update gcc from gcc-4.6-20100522 to gcc-4.6-20110318
nobuyasu <dimolto@cr.ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
6 // Contributed by Picochip Ltd. |
| 0 | 7 // Maintained by Hariharan Sandanagobalane (hariharan@picochip.com) |
| 8 // | |
| 9 // This file is free software; you can redistribute it and/or modify it | |
| 10 // under the terms of the GNU General Public License as published by the | |
| 11 // Free Software Foundation; either version 3, or (at your option) any | |
| 12 // later version. | |
| 13 // | |
| 14 // This file is distributed in the hope that it will be useful, but | |
| 15 // WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 // General Public License for more details. | |
| 18 // | |
| 19 // Under Section 7 of GPL version 3, you are granted additional | |
| 20 // permissions described in the GCC Runtime Library Exception, version | |
| 21 // 3.1, as published by the Free Software Foundation. | |
| 22 // | |
| 23 // You should have received a copy of the GNU General Public License and | |
| 24 // a copy of the GCC Runtime Library Exception along with this program; | |
| 25 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 26 // <http://www.gnu.org/licenses/>. | |
| 27 | |
| 28 .section .text | |
| 29 | |
| 30 .global ___ashrsi3 | |
| 31 ___ashrsi3: | |
| 32 _picoMark_FUNCTION_BEGIN= | |
| 33 | |
| 34 // picoChip Function Prologue : &___ashrsi3 = 0 bytes | |
| 35 | |
| 36 // if (R2 > 15) goto _L2 | |
| 37 SUB.0 15,R2,r15 | |
| 38 JMPLT _L2 | |
| 39 =-> COPY.0 R1,R3 | |
| 40 | |
| 41 LSR.0 R1,R2,R1 // R1 := R1 >> R2 | |
| 42 // if (R2 == 0) goto _L4 | |
| 43 SUB.0 R2,0,r15 | |
| 44 JMPEQ _L4 | |
| 45 =-> LSR.0 R0,R2,R0 // R2 := R0 >> R2 | |
| 46 | |
| 47 SUB.0 16,R2,R4 // R4 := R4 - R2 (HI) | |
| 48 ASR.0 R3,15,R5 // R5 = R1 >>{arith} 15 | |
| 49 LSL.0 R5,R4,R5 // R5 := R5 << R4 | |
| 50 LSL.0 R3,R4,R4 // R4 := R1 << R4 | |
| 51 OR.0 R5,R1,R1 // R3 := R5 IOR R3 (HI) | |
| 52 BRA _L4 | |
| 53 =-> OR.0 R4,R0,R0 // R2 := R4 IOR R0 (HI) | |
| 54 _L2: | |
| 55 ASR.0 R1,15,R1 // R4 = R1 >>{arith} 15 | |
| 56 SUB.0 16,R2,R5 // R5 := R5 - R2 (HI) | |
| 57 LSR.0 R3,R2,R0 // R2 := R1 >> R2 | |
| 58 LSL.0 R1,R5,R5 // R5 := R4 << R5 | |
| 59 OR.0 R5,R0,R5 // R2 := R5 IOR R2 (HI) | |
| 60 SUB.0 R2,16,r15 // R5 := R5 - R2 (HI) | |
| 61 COPYNE R5,R0 | |
| 62 _L4: | |
| 63 JR (R12) // Return to caller | |
| 64 | |
| 65 _picoMark_FUNCTION_END= | |
| 66 | |
| 67 // picoChip Function Epilogue : __ashrsi3 | |
| 68 //============================================================================ | |
| 69 // All DWARF information between this marker, and the END OF DWARF | |
| 70 // marker should be included in the source file. Search for | |
| 71 // FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and | |
| 72 // provide the relevent information. Add markers called | |
| 73 // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the | |
| 74 // function in question. | |
| 75 //============================================================================ | |
| 76 | |
| 77 //============================================================================ | |
| 78 // Frame information. | |
| 79 //============================================================================ | |
| 80 | |
| 81 .section .debug_frame | |
| 82 _picoMark_DebugFrame= | |
| 83 | |
| 84 // Common CIE header. | |
| 85 .unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin | |
| 86 _picoMark_CieBegin= | |
| 87 .unalignedInitLong 0xffffffff | |
| 88 .initByte 0x1 // CIE Version | |
| 89 .ascii 16#0# // CIE Augmentation | |
| 90 .uleb128 0x1 // CIE Code Alignment Factor | |
| 91 .sleb128 2 // CIE Data Alignment Factor | |
| 92 .initByte 0xc // CIE RA Column | |
| 93 .initByte 0xc // DW_CFA_def_cfa | |
| 94 .uleb128 0xd | |
| 95 .uleb128 0x0 | |
| 96 .align 2 | |
| 97 _picoMark_CieEnd= | |
| 98 | |
| 99 // FDE | |
| 100 _picoMark_LSFDE0I900821033007563= | |
| 101 .unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin | |
| 102 _picoMark_FdeBegin= | |
| 103 .unalignedInitLong _picoMark_DebugFrame // FDE CIE offset | |
| 104 .unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location | |
| 105 .unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN | |
| 106 .initByte 0xe // DW_CFA_def_cfa_offset | |
| 107 .uleb128 0x0 // <-- FUNCTION_STACK_SIZE_GOES_HERE | |
| 108 .initByte 0x4 // DW_CFA_advance_loc4 | |
| 109 .unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN | |
| 110 .initByte 0xe // DW_CFA_def_cfa_offset | |
| 111 .uleb128 0x0 | |
| 112 .align 2 | |
| 113 _picoMark_FdeEnd= | |
| 114 | |
| 115 //============================================================================ | |
| 116 // Abbrevation information. | |
| 117 //============================================================================ | |
| 118 | |
| 119 .section .debug_abbrev | |
| 120 _picoMark_ABBREVIATIONS= | |
| 121 | |
| 122 .section .debug_abbrev | |
| 123 .uleb128 0x1 // (abbrev code) | |
| 124 .uleb128 0x11 // (TAG: DW_TAG_compile_unit) | |
| 125 .initByte 0x1 // DW_children_yes | |
| 126 .uleb128 0x10 // (DW_AT_stmt_list) | |
| 127 .uleb128 0x6 // (DW_FORM_data4) | |
| 128 .uleb128 0x12 // (DW_AT_high_pc) | |
| 129 .uleb128 0x1 // (DW_FORM_addr) | |
| 130 .uleb128 0x11 // (DW_AT_low_pc) | |
| 131 .uleb128 0x1 // (DW_FORM_addr) | |
| 132 .uleb128 0x25 // (DW_AT_producer) | |
| 133 .uleb128 0x8 // (DW_FORM_string) | |
| 134 .uleb128 0x13 // (DW_AT_language) | |
| 135 .uleb128 0x5 // (DW_FORM_data2) | |
| 136 .uleb128 0x3 // (DW_AT_name) | |
| 137 .uleb128 0x8 // (DW_FORM_string) | |
| 138 .initByte 0x0 | |
| 139 .initByte 0x0 | |
| 140 | |
| 141 .uleb128 0x2 ;# (abbrev code) | |
| 142 .uleb128 0x2e ;# (TAG: DW_TAG_subprogram) | |
| 143 .initByte 0x0 ;# DW_children_no | |
| 144 .uleb128 0x3 ;# (DW_AT_name) | |
| 145 .uleb128 0x8 ;# (DW_FORM_string) | |
| 146 .uleb128 0x11 ;# (DW_AT_low_pc) | |
| 147 .uleb128 0x1 ;# (DW_FORM_addr) | |
| 148 .uleb128 0x12 ;# (DW_AT_high_pc) | |
| 149 .uleb128 0x1 ;# (DW_FORM_addr) | |
| 150 .initByte 0x0 | |
| 151 .initByte 0x0 | |
| 152 | |
| 153 .initByte 0x0 | |
| 154 | |
| 155 //============================================================================ | |
| 156 // Line information. DwarfLib requires this to be present, but it can | |
| 157 // be empty. | |
| 158 //============================================================================ | |
| 159 | |
| 160 .section .debug_line | |
| 161 _picoMark_LINES= | |
| 162 | |
| 163 //============================================================================ | |
| 164 // Debug Information | |
| 165 //============================================================================ | |
| 166 .section .debug_info | |
| 167 | |
| 168 //Fixed header. | |
| 169 .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN | |
| 170 _picoMark_DEBUG_INFO_BEGIN= | |
| 171 .unalignedInitWord 0x2 | |
| 172 .unalignedInitLong _picoMark_ABBREVIATIONS | |
| 173 .initByte 0x2 | |
| 174 | |
| 175 // Compile unit information. | |
| 176 .uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit) | |
| 177 .unalignedInitLong _picoMark_LINES | |
| 178 .unalignedInitWord _picoMark_FUNCTION_END | |
| 179 .unalignedInitWord _picoMark_FUNCTION_BEGIN | |
| 180 // Producer is `picoChip' | |
| 181 .ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00# | |
| 182 .unalignedInitWord 0xcafe // ASM language | |
| 183 .ascii 16#0# // Name. DwarfLib expects this to be present. | |
| 184 | |
| 185 .uleb128 0x2 ;# (DIE DW_TAG_subprogram) | |
| 186 | |
| 187 // FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex | |
| 188 // digit is specified using the format 16#XX# | |
| 189 .ascii 16#5f# 16#61# 16#73# 16#68# 16#72# 16#73# 16#69# 16#33# 16#0# // Function name `_ashrsi3' | |
| 190 .unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc | |
| 191 .unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc | |
| 192 | |
| 193 .initByte 0x0 // end of compile unit children. | |
| 194 | |
| 195 _picoMark_DEBUG_INFO_END= | |
| 196 | |
| 197 //============================================================================ | |
| 198 // END OF DWARF | |
| 199 //============================================================================ | |
| 200 | |
| 201 .section .endFile | |
| 202 // End of picoChip ASM file |