gcc/config/picochip/libgccExtras/ashlsi3.asm

   1 // picoChip ASM file
   2 // picoChip ASM file
   3 //
   4 //   Support for 32-bit arithmetic shift left.
   5 //
   6 //   Copyright (C) 2003, 2004, 2005, 2008  Free Software Foundation, Inc.
   7 //   Contributed by picoChip Designs Ltd.
   8 //   Maintained by Hariharan Sandanagobalane (hariharan@picochip.com)
   9 //
  10 //   This file is free software; you can redistribute it and/or modify it
  11 //   under the terms of the GNU General Public License as published by the
  12 //   Free Software Foundation; either version 2, or (at your option) any
  13 //   later version.
  14 //
  15 //   In addition to the permissions in the GNU General Public License, the
  16 //   Free Software Foundation gives you unlimited permission to link the
  17 //   compiled version of this file into combinations with other programs,
  18 //   and to distribute those combinations without any restriction coming
  19 //   from the use of this file.  (The General Public License restrictions
  20 //   do apply in other respects; for example, they cover modification of
  21 //   the file, and distribution when not linked into a combine
  22 //   executable.)
  23 //
  24 //   This file is distributed in the hope that it will be useful, but
  25 //   WITHOUT ANY WARRANTY; without even the implied warranty of
  26 //   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27 //   General Public License for more details.
  28 //
  29 //   You should have received a copy of the GNU General Public License
  30 //   along with this program; see the file COPYING.  If not, write to
  31 //   the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  32 //   Boston, MA 02110-1301, USA.
  33 .section .text
  34
  35 .global ___ashlsi3
  36 ___ashlsi3:
  37 _picoMark_FUNCTION_BEGIN=
  38 // picoChip Function Prologue : &___ashlsi3 = 0 bytes
  39
  40         // if (R2 > 15) goto _L2
  41         SUB.0 15,R2,r15
  42         JMPLT _L2
  43 =->     SUB.0 16,R2,R5   // R5 := R5 - R4 (HI)
  44
  45         LSL.0 R1,R2,R1    // R3 := R1 << R2
  46         LSL.0 R0,R2,R4    // R2 := R0 << R2
  47
  48         LSR.0 R0,R5,R5 // R5 := R12 >> R5 NEED TO CHECK - HARI
  49         OR.0 R5,R1,R5 // R3 := R5 IOR R0 (HI)
  50         SUB.0 R2,0,r15
  51         COPYNE R5,R1
  52         JR (R12)        // Return to caller
  53 =->     COPY.0 R4,R0
  54
  55 _L2:
  56         LSL.0 R0,R2,R1  // R3 := R0 << R2
  57         JR (R12)        // Return to caller
  58 =->     COPY.0 0,R0     // R2 := 0 (short constant)
  59
  60 _picoMark_FUNCTION_END=
  61
  62 // picoChip Function Epilogue : __ashlsi3
  63
  64 //============================================================================
  65 // All DWARF information between this marker, and the END OF DWARF
  66 // marker should be included in the source file. Search for
  67 // FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
  68 // provide the relevent information. Add markers called
  69 // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
  70 // function in question.
  71 //============================================================================
  72
  73 //============================================================================
  74 // Frame information.
  75 //============================================================================
  76
  77 .section .debug_frame
  78 _picoMark_DebugFrame=
  79
  80 // Common CIE header.
  81 .unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
  82 _picoMark_CieBegin=
  83 .unalignedInitLong 0xffffffff
  84 .initByte 0x1   // CIE Version
  85 .ascii 16#0#    // CIE Augmentation
  86 .uleb128 0x1    // CIE Code Alignment Factor
  87 .sleb128 2      // CIE Data Alignment Factor
  88 .initByte 0xc   // CIE RA Column
  89 .initByte 0xc   // DW_CFA_def_cfa
  90 .uleb128 0xd
  91 .uleb128 0x0
  92 .align 2
  93 _picoMark_CieEnd=
  94
  95 // FDE
  96 _picoMark_LSFDE0I900821033007563=
  97 .unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
  98 _picoMark_FdeBegin=
  99 .unalignedInitLong _picoMark_DebugFrame // FDE CIE offset
 100 .unalignedInitWord _picoMark_FUNCTION_BEGIN     // FDE initial location
 101 .unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
 102 .initByte 0xe   // DW_CFA_def_cfa_offset
 103 .uleb128 0x0    // <-- FUNCTION_STACK_SIZE_GOES_HERE
 104 .initByte 0x4   // DW_CFA_advance_loc4
 105 .unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
 106 .initByte 0xe   // DW_CFA_def_cfa_offset
 107 .uleb128 0x0
 108 .align 2
 109 _picoMark_FdeEnd=
 110
 111 //============================================================================
 112 // Abbrevation information.
 113 //============================================================================
 114
 115 .section .debug_abbrev
 116 _picoMark_ABBREVIATIONS=
 117
 118 .section .debug_abbrev
 119         .uleb128 0x1    // (abbrev code)
 120         .uleb128 0x11   // (TAG: DW_TAG_compile_unit)
 121         .initByte 0x1   // DW_children_yes
 122         .uleb128 0x10   // (DW_AT_stmt_list)
 123         .uleb128 0x6    // (DW_FORM_data4)
 124         .uleb128 0x12   // (DW_AT_high_pc)
 125         .uleb128 0x1    // (DW_FORM_addr)
 126         .uleb128 0x11   // (DW_AT_low_pc)
 127         .uleb128 0x1    // (DW_FORM_addr)
 128         .uleb128 0x25   // (DW_AT_producer)
 129         .uleb128 0x8    // (DW_FORM_string)
 130         .uleb128 0x13   // (DW_AT_language)
 131         .uleb128 0x5    // (DW_FORM_data2)
 132         .uleb128 0x3    // (DW_AT_name)
 133         .uleb128 0x8    // (DW_FORM_string)
 134 .initByte 0x0
 135 .initByte 0x0
 136
 137         .uleb128 0x2    ;# (abbrev code)
 138         .uleb128 0x2e   ;# (TAG: DW_TAG_subprogram)
 139 .initByte 0x0   ;# DW_children_no
 140         .uleb128 0x3    ;# (DW_AT_name)
 141         .uleb128 0x8    ;# (DW_FORM_string)
 142         .uleb128 0x11   ;# (DW_AT_low_pc)
 143         .uleb128 0x1    ;# (DW_FORM_addr)
 144         .uleb128 0x12   ;# (DW_AT_high_pc)
 145         .uleb128 0x1    ;# (DW_FORM_addr)
 146 .initByte 0x0
 147 .initByte 0x0
 148
 149 .initByte 0x0
 150
 151 //============================================================================
 152 // Line information. DwarfLib requires this to be present, but it can
 153 // be empty.
 154 //============================================================================
 155
 156 .section .debug_line
 157 _picoMark_LINES=
 158
 159 //============================================================================
 160 // Debug Information
 161 //============================================================================
 162 .section .debug_info
 163
 164 //Fixed header.
 165 .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
 166 _picoMark_DEBUG_INFO_BEGIN=
 167 .unalignedInitWord 0x2
 168 .unalignedInitLong _picoMark_ABBREVIATIONS
 169 .initByte 0x2
 170
 171 // Compile unit information.
 172 .uleb128 0x1    // (DIE 0xb) DW_TAG_compile_unit)
 173 .unalignedInitLong _picoMark_LINES
 174 .unalignedInitWord _picoMark_FUNCTION_END
 175 .unalignedInitWord _picoMark_FUNCTION_BEGIN
 176 // Producer is `picoChip'
 177 .ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
 178 .unalignedInitWord 0xcafe // ASM language
 179 .ascii 16#0# // Name. DwarfLib expects this to be present.
 180
 181 .uleb128 0x2    ;# (DIE DW_TAG_subprogram)
 182
 183 // FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
 184 // digit is specified using the format 16#XX#
 185 .ascii 16#5f# 16#61# 16#73# 16#68# 16#6c# 16#73# 16#69# 16#33# 16#0# // Function name `_ashlsi3'
 186 .unalignedInitWord _picoMark_FUNCTION_BEGIN     // DW_AT_low_pc
 187 .unalignedInitWord _picoMark_FUNCTION_END       // DW_AT_high_pc
 188
 189 .initByte 0x0   // end of compile unit children.
 190
 191 _picoMark_DEBUG_INFO_END=
 192
 193 //============================================================================
 194 // END OF DWARF
 195 //============================================================================
 196
 197 .section .endFile