1 |
734 |
jeremybenn |
// picoChip ASM file
|
2 |
|
|
//
|
3 |
|
|
// Support for 32-bit logical shift right.
|
4 |
|
|
//
|
5 |
|
|
// Copyright (C) 2003, 2004, 2005, 2008, 2009 Free Software Foundation, Inc.
|
6 |
|
|
// Contributed by Picochip Ltd.
|
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 |
|
|
// .
|
27 |
|
|
.section .text
|
28 |
|
|
|
29 |
|
|
.global ___lshrsi3
|
30 |
|
|
___lshrsi3:
|
31 |
|
|
_picoMark_FUNCTION_BEGIN=
|
32 |
|
|
|
33 |
|
|
// picoChip Function Prologue : &___lshrsi3 = 4 bytes
|
34 |
|
|
|
35 |
|
|
// if (R2 > 15) goto _L2
|
36 |
|
|
SUB.0 15,R2,r15
|
37 |
|
|
JMPLT _L2
|
38 |
|
|
=-> SUB.0 16,R2,R5 // R5 := R5 - R2 (HI)
|
39 |
|
|
|
40 |
|
|
LSR.0 R0,R2,R0 // R4 := R0 >> R2
|
41 |
|
|
LSR.0 R1,R2,R3 // R3 := R1 >> R2
|
42 |
|
|
// if (R2 == 0) goto _L4
|
43 |
|
|
LSL.0 R1,R5,R5 // R5 := R1 << R5
|
44 |
|
|
OR.0 R5,R0,R4 // R2 := R5 IOR R2 (HI)
|
45 |
|
|
SUB.0 R2,0,r15
|
46 |
|
|
COPYNE R4,R0 // R0 := R2
|
47 |
|
|
JR (R12) // Return to caller
|
48 |
|
|
=-> COPY.0 R3,R1 // R1 := R3
|
49 |
|
|
|
50 |
|
|
_L2:
|
51 |
|
|
LSR.0 R1,R2,R0 // R2 := R1 >> R2
|
52 |
|
|
JR (R12) // Return to caller
|
53 |
|
|
=-> COPY.0 0,R1 // R3 := 0 (short constant)
|
54 |
|
|
|
55 |
|
|
_picoMark_FUNCTION_END=
|
56 |
|
|
// picoChip Function Epilogue : __lshrsi3
|
57 |
|
|
|
58 |
|
|
//============================================================================
|
59 |
|
|
// All DWARF information between this marker, and the END OF DWARF
|
60 |
|
|
// marker should be included in the source file. Search for
|
61 |
|
|
// FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
|
62 |
|
|
// provide the relevent information. Add markers called
|
63 |
|
|
// _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
|
64 |
|
|
// function in question.
|
65 |
|
|
//============================================================================
|
66 |
|
|
|
67 |
|
|
//============================================================================
|
68 |
|
|
// Frame information.
|
69 |
|
|
//============================================================================
|
70 |
|
|
|
71 |
|
|
.section .debug_frame
|
72 |
|
|
_picoMark_DebugFrame=
|
73 |
|
|
|
74 |
|
|
// Common CIE header.
|
75 |
|
|
.unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
|
76 |
|
|
_picoMark_CieBegin=
|
77 |
|
|
.unalignedInitLong 0xffffffff
|
78 |
|
|
.initByte 0x1 // CIE Version
|
79 |
|
|
.ascii 16#0# // CIE Augmentation
|
80 |
|
|
.uleb128 0x1 // CIE Code Alignment Factor
|
81 |
|
|
.sleb128 2 // CIE Data Alignment Factor
|
82 |
|
|
.initByte 0xc // CIE RA Column
|
83 |
|
|
.initByte 0xc // DW_CFA_def_cfa
|
84 |
|
|
.uleb128 0xd
|
85 |
|
|
.uleb128 0x0
|
86 |
|
|
.align 2
|
87 |
|
|
_picoMark_CieEnd=
|
88 |
|
|
|
89 |
|
|
// FDE
|
90 |
|
|
_picoMark_LSFDE0I900821033007563=
|
91 |
|
|
.unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
|
92 |
|
|
_picoMark_FdeBegin=
|
93 |
|
|
.unalignedInitLong _picoMark_DebugFrame // FDE CIE offset
|
94 |
|
|
.unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location
|
95 |
|
|
.unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
|
96 |
|
|
.initByte 0xe // DW_CFA_def_cfa_offset
|
97 |
|
|
.uleb128 0x4 // <-- FUNCTION_STACK_SIZE_GOES_HERE
|
98 |
|
|
.initByte 0x4 // DW_CFA_advance_loc4
|
99 |
|
|
.unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
|
100 |
|
|
.initByte 0xe // DW_CFA_def_cfa_offset
|
101 |
|
|
.uleb128 0x0
|
102 |
|
|
.align 2
|
103 |
|
|
_picoMark_FdeEnd=
|
104 |
|
|
|
105 |
|
|
//============================================================================
|
106 |
|
|
// Abbrevation information.
|
107 |
|
|
//============================================================================
|
108 |
|
|
|
109 |
|
|
.section .debug_abbrev
|
110 |
|
|
_picoMark_ABBREVIATIONS=
|
111 |
|
|
|
112 |
|
|
.section .debug_abbrev
|
113 |
|
|
.uleb128 0x1 // (abbrev code)
|
114 |
|
|
.uleb128 0x11 // (TAG: DW_TAG_compile_unit)
|
115 |
|
|
.initByte 0x1 // DW_children_yes
|
116 |
|
|
.uleb128 0x10 // (DW_AT_stmt_list)
|
117 |
|
|
.uleb128 0x6 // (DW_FORM_data4)
|
118 |
|
|
.uleb128 0x12 // (DW_AT_high_pc)
|
119 |
|
|
.uleb128 0x1 // (DW_FORM_addr)
|
120 |
|
|
.uleb128 0x11 // (DW_AT_low_pc)
|
121 |
|
|
.uleb128 0x1 // (DW_FORM_addr)
|
122 |
|
|
.uleb128 0x25 // (DW_AT_producer)
|
123 |
|
|
.uleb128 0x8 // (DW_FORM_string)
|
124 |
|
|
.uleb128 0x13 // (DW_AT_language)
|
125 |
|
|
.uleb128 0x5 // (DW_FORM_data2)
|
126 |
|
|
.uleb128 0x3 // (DW_AT_name)
|
127 |
|
|
.uleb128 0x8 // (DW_FORM_string)
|
128 |
|
|
.initByte 0x0
|
129 |
|
|
.initByte 0x0
|
130 |
|
|
|
131 |
|
|
.uleb128 0x2 ;# (abbrev code)
|
132 |
|
|
.uleb128 0x2e ;# (TAG: DW_TAG_subprogram)
|
133 |
|
|
.initByte 0x0 ;# DW_children_no
|
134 |
|
|
.uleb128 0x3 ;# (DW_AT_name)
|
135 |
|
|
.uleb128 0x8 ;# (DW_FORM_string)
|
136 |
|
|
.uleb128 0x11 ;# (DW_AT_low_pc)
|
137 |
|
|
.uleb128 0x1 ;# (DW_FORM_addr)
|
138 |
|
|
.uleb128 0x12 ;# (DW_AT_high_pc)
|
139 |
|
|
.uleb128 0x1 ;# (DW_FORM_addr)
|
140 |
|
|
.initByte 0x0
|
141 |
|
|
.initByte 0x0
|
142 |
|
|
|
143 |
|
|
.initByte 0x0
|
144 |
|
|
|
145 |
|
|
//============================================================================
|
146 |
|
|
// Line information. DwarfLib requires this to be present, but it can
|
147 |
|
|
// be empty.
|
148 |
|
|
//============================================================================
|
149 |
|
|
|
150 |
|
|
.section .debug_line
|
151 |
|
|
_picoMark_LINES=
|
152 |
|
|
|
153 |
|
|
//============================================================================
|
154 |
|
|
// Debug Information
|
155 |
|
|
//============================================================================
|
156 |
|
|
.section .debug_info
|
157 |
|
|
|
158 |
|
|
//Fixed header.
|
159 |
|
|
.unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
|
160 |
|
|
_picoMark_DEBUG_INFO_BEGIN=
|
161 |
|
|
.unalignedInitWord 0x2
|
162 |
|
|
.unalignedInitLong _picoMark_ABBREVIATIONS
|
163 |
|
|
.initByte 0x2
|
164 |
|
|
|
165 |
|
|
// Compile unit information.
|
166 |
|
|
.uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit)
|
167 |
|
|
.unalignedInitLong _picoMark_LINES
|
168 |
|
|
.unalignedInitWord _picoMark_FUNCTION_END
|
169 |
|
|
.unalignedInitWord _picoMark_FUNCTION_BEGIN
|
170 |
|
|
// Producer is `picoChip'
|
171 |
|
|
.ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
|
172 |
|
|
.unalignedInitWord 0xcafe // ASM language
|
173 |
|
|
.ascii 16#0# // Name. DwarfLib expects this to be present.
|
174 |
|
|
|
175 |
|
|
.uleb128 0x2 ;# (DIE DW_TAG_subprogram)
|
176 |
|
|
|
177 |
|
|
// FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
|
178 |
|
|
// digit is specified using the format 16#XX#
|
179 |
|
|
.ascii 16#5f# 16#5f# 16#6c# 16#73# 16#68# 16#72# 16#72# 16#73# 16#69# 16#33# 16#0# // Function name `__lshrsi3'
|
180 |
|
|
.unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc
|
181 |
|
|
.unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc
|
182 |
|
|
|
183 |
|
|
.initByte 0x0 // end of compile unit children.
|
184 |
|
|
|
185 |
|
|
_picoMark_DEBUG_INFO_END=
|
186 |
|
|
|
187 |
|
|
//============================================================================
|
188 |
|
|
// END OF DWARF
|
189 |
|
|
//============================================================================
|
190 |
|
|
.section .endFile
|