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358da97e HS |
1 | // picoChip ASM file |
2 | // picoChip ASM file | |
3 | // | |
4 | // Support for 32-bit arithmetic shift left. | |
5 | // | |
748086b7 | 6 | // Copyright (C) 2003, 2004, 2005, 2008, 2009 Free Software Foundation, Inc. |
358da97e HS |
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 | |
748086b7 | 12 | // Free Software Foundation; either version 3, or (at your option) any |
358da97e HS |
13 | // later version. |
14 | // | |
358da97e HS |
15 | // This file is distributed in the hope that it will be useful, but |
16 | // WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | // General Public License for more details. | |
19 | // | |
748086b7 JJ |
20 | // Under Section 7 of GPL version 3, you are granted additional |
21 | // permissions described in the GCC Runtime Library Exception, version | |
22 | // 3.1, as published by the Free Software Foundation. | |
23 | // | |
24 | // You should have received a copy of the GNU General Public License and | |
25 | // a copy of the GCC Runtime Library Exception along with this program; | |
26 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
27 | // <http://www.gnu.org/licenses/>. | |
28 | ||
358da97e HS |
29 | .section .text |
30 | ||
31 | .global ___ashlsi3 | |
32 | ___ashlsi3: | |
33 | _picoMark_FUNCTION_BEGIN= | |
34 | // picoChip Function Prologue : &___ashlsi3 = 0 bytes | |
35 | ||
36 | // if (R2 > 15) goto _L2 | |
37 | SUB.0 15,R2,r15 | |
38 | JMPLT _L2 | |
39 | =-> SUB.0 16,R2,R5 // R5 := R5 - R4 (HI) | |
40 | ||
41 | LSL.0 R1,R2,R1 // R3 := R1 << R2 | |
42 | LSL.0 R0,R2,R4 // R2 := R0 << R2 | |
43 | ||
44 | LSR.0 R0,R5,R5 // R5 := R12 >> R5 NEED TO CHECK - HARI | |
45 | OR.0 R5,R1,R5 // R3 := R5 IOR R0 (HI) | |
46 | SUB.0 R2,0,r15 | |
47 | COPYNE R5,R1 | |
48 | JR (R12) // Return to caller | |
49 | =-> COPY.0 R4,R0 | |
50 | ||
51 | _L2: | |
52 | LSL.0 R0,R2,R1 // R3 := R0 << R2 | |
53 | JR (R12) // Return to caller | |
54 | =-> COPY.0 0,R0 // R2 := 0 (short constant) | |
55 | ||
56 | _picoMark_FUNCTION_END= | |
57 | ||
58 | // picoChip Function Epilogue : __ashlsi3 | |
59 | ||
60 | //============================================================================ | |
61 | // All DWARF information between this marker, and the END OF DWARF | |
62 | // marker should be included in the source file. Search for | |
63 | // FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and | |
64 | // provide the relevent information. Add markers called | |
65 | // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the | |
66 | // function in question. | |
67 | //============================================================================ | |
68 | ||
69 | //============================================================================ | |
70 | // Frame information. | |
71 | //============================================================================ | |
72 | ||
73 | .section .debug_frame | |
74 | _picoMark_DebugFrame= | |
75 | ||
76 | // Common CIE header. | |
77 | .unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin | |
78 | _picoMark_CieBegin= | |
79 | .unalignedInitLong 0xffffffff | |
80 | .initByte 0x1 // CIE Version | |
81 | .ascii 16#0# // CIE Augmentation | |
82 | .uleb128 0x1 // CIE Code Alignment Factor | |
83 | .sleb128 2 // CIE Data Alignment Factor | |
84 | .initByte 0xc // CIE RA Column | |
85 | .initByte 0xc // DW_CFA_def_cfa | |
86 | .uleb128 0xd | |
87 | .uleb128 0x0 | |
88 | .align 2 | |
89 | _picoMark_CieEnd= | |
90 | ||
91 | // FDE | |
92 | _picoMark_LSFDE0I900821033007563= | |
93 | .unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin | |
94 | _picoMark_FdeBegin= | |
95 | .unalignedInitLong _picoMark_DebugFrame // FDE CIE offset | |
96 | .unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location | |
97 | .unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN | |
98 | .initByte 0xe // DW_CFA_def_cfa_offset | |
99 | .uleb128 0x0 // <-- FUNCTION_STACK_SIZE_GOES_HERE | |
100 | .initByte 0x4 // DW_CFA_advance_loc4 | |
101 | .unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN | |
102 | .initByte 0xe // DW_CFA_def_cfa_offset | |
103 | .uleb128 0x0 | |
104 | .align 2 | |
105 | _picoMark_FdeEnd= | |
106 | ||
107 | //============================================================================ | |
108 | // Abbrevation information. | |
109 | //============================================================================ | |
110 | ||
111 | .section .debug_abbrev | |
112 | _picoMark_ABBREVIATIONS= | |
113 | ||
114 | .section .debug_abbrev | |
115 | .uleb128 0x1 // (abbrev code) | |
116 | .uleb128 0x11 // (TAG: DW_TAG_compile_unit) | |
117 | .initByte 0x1 // DW_children_yes | |
118 | .uleb128 0x10 // (DW_AT_stmt_list) | |
119 | .uleb128 0x6 // (DW_FORM_data4) | |
120 | .uleb128 0x12 // (DW_AT_high_pc) | |
121 | .uleb128 0x1 // (DW_FORM_addr) | |
122 | .uleb128 0x11 // (DW_AT_low_pc) | |
123 | .uleb128 0x1 // (DW_FORM_addr) | |
124 | .uleb128 0x25 // (DW_AT_producer) | |
125 | .uleb128 0x8 // (DW_FORM_string) | |
126 | .uleb128 0x13 // (DW_AT_language) | |
127 | .uleb128 0x5 // (DW_FORM_data2) | |
128 | .uleb128 0x3 // (DW_AT_name) | |
129 | .uleb128 0x8 // (DW_FORM_string) | |
130 | .initByte 0x0 | |
131 | .initByte 0x0 | |
132 | ||
133 | .uleb128 0x2 ;# (abbrev code) | |
134 | .uleb128 0x2e ;# (TAG: DW_TAG_subprogram) | |
135 | .initByte 0x0 ;# DW_children_no | |
136 | .uleb128 0x3 ;# (DW_AT_name) | |
137 | .uleb128 0x8 ;# (DW_FORM_string) | |
138 | .uleb128 0x11 ;# (DW_AT_low_pc) | |
139 | .uleb128 0x1 ;# (DW_FORM_addr) | |
140 | .uleb128 0x12 ;# (DW_AT_high_pc) | |
141 | .uleb128 0x1 ;# (DW_FORM_addr) | |
142 | .initByte 0x0 | |
143 | .initByte 0x0 | |
144 | ||
145 | .initByte 0x0 | |
146 | ||
147 | //============================================================================ | |
148 | // Line information. DwarfLib requires this to be present, but it can | |
149 | // be empty. | |
150 | //============================================================================ | |
151 | ||
152 | .section .debug_line | |
153 | _picoMark_LINES= | |
154 | ||
155 | //============================================================================ | |
156 | // Debug Information | |
157 | //============================================================================ | |
158 | .section .debug_info | |
159 | ||
160 | //Fixed header. | |
161 | .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN | |
162 | _picoMark_DEBUG_INFO_BEGIN= | |
163 | .unalignedInitWord 0x2 | |
164 | .unalignedInitLong _picoMark_ABBREVIATIONS | |
165 | .initByte 0x2 | |
166 | ||
167 | // Compile unit information. | |
168 | .uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit) | |
169 | .unalignedInitLong _picoMark_LINES | |
170 | .unalignedInitWord _picoMark_FUNCTION_END | |
171 | .unalignedInitWord _picoMark_FUNCTION_BEGIN | |
172 | // Producer is `picoChip' | |
173 | .ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00# | |
174 | .unalignedInitWord 0xcafe // ASM language | |
175 | .ascii 16#0# // Name. DwarfLib expects this to be present. | |
176 | ||
177 | .uleb128 0x2 ;# (DIE DW_TAG_subprogram) | |
178 | ||
179 | // FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex | |
180 | // digit is specified using the format 16#XX# | |
181 | .ascii 16#5f# 16#61# 16#73# 16#68# 16#6c# 16#73# 16#69# 16#33# 16#0# // Function name `_ashlsi3' | |
182 | .unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc | |
183 | .unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc | |
184 | ||
185 | .initByte 0x0 // end of compile unit children. | |
186 | ||
187 | _picoMark_DEBUG_INFO_END= | |
188 | ||
189 | //============================================================================ | |
190 | // END OF DWARF | |
191 | //============================================================================ | |
192 | ||
193 | .section .endFile |