3 // Support for 32-bit arithmetic shift right.
5 // Copyright (C) 2003-2013 Free Software Foundation, Inc.
6 // Contributed by Picochip Ltd.
7 // Maintained by Hariharan Sandanagobalane (hariharan@picochip.com)
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
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.
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.
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/>.
32 _picoMark_FUNCTION_BEGIN=
34 // picoChip Function Prologue : &___ashrsi3 = 0 bytes
36 // if (R2 > 15) goto _L2
41 LSR.0 R1,R2,R1 // R1 := R1 >> R2
42 // if (R2 == 0) goto _L4
45 =-> LSR.0 R0,R2,R0 // R2 := R0 >> R2
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)
53 =-> OR.0 R4,R0,R0 // R2 := R4 IOR R0 (HI)
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)
63 JR (R12) // Return to caller
65 _picoMark_FUNCTION_END=
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 relevant information. Add markers called
73 // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
74 // function in question.
75 //============================================================================
77 //============================================================================
79 //============================================================================
85 .unalignedInitLong _picoMark_CieEnd-_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
100 _picoMark_LSFDE0I900821033007563=
101 .unalignedInitLong _picoMark_FdeEnd-_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
115 //============================================================================
116 // Abbrevation information.
117 //============================================================================
119 .section .debug_abbrev
120 _picoMark_ABBREVIATIONS=
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)
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)
155 //============================================================================
156 // Line information. DwarfLib requires this to be present, but it can
158 //============================================================================
163 //============================================================================
165 //============================================================================
169 .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
170 _picoMark_DEBUG_INFO_BEGIN=
171 .unalignedInitWord 0x2
172 .unalignedInitLong _picoMark_ABBREVIATIONS
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.
185 .uleb128 0x2 ;# (DIE DW_TAG_subprogram)
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
193 .initByte 0x0 // end of compile unit children.
195 _picoMark_DEBUG_INFO_END=
197 //============================================================================
199 //============================================================================
202 // End of picoChip ASM file