3 // Support for 32-bit arithmetic shift right.
5 // Copyright (C) 2003, 2004, 2005, 2008 Free Software Foundation, Inc.
6 // Contributed by picoChip Designs 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 2, or (at your option) any
14 // In addition to the permissions in the GNU General Public License, the
15 // Free Software Foundation gives you unlimited permission to link the
16 // compiled version of this file into combinations with other programs,
17 // and to distribute those combinations without any restriction coming
18 // from the use of this file. (The General Public License restrictions
19 // do apply in other respects; for example, they cover modification of
20 // the file, and distribution when not linked into a combine
23 // This file is distributed in the hope that it will be useful, but
24 // WITHOUT ANY WARRANTY; without even the implied warranty of
25 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 // General Public License for more details.
28 // You should have received a copy of the GNU General Public License
29 // along with this program; see the file COPYING. If not, write to
30 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
31 // Boston, MA 02110-1301, USA.
37 _picoMark_FUNCTION_BEGIN=
39 // picoChip Function Prologue : &___ashrsi3 = 0 bytes
41 // if (R2 > 15) goto _L2
46 LSR.0 R1,R2,R1 // R1 := R1 >> R2
47 // if (R2 == 0) goto _L4
50 =-> LSR.0 R0,R2,R0 // R2 := R0 >> R2
52 SUB.0 16,R2,R4 // R4 := R4 - R2 (HI)
53 ASR.0 R3,15,R5 // R5 = R1 >>{arith} 15
54 LSL.0 R5,R4,R5 // R5 := R5 << R4
55 LSL.0 R3,R4,R4 // R4 := R1 << R4
56 OR.0 R5,R1,R1 // R3 := R5 IOR R3 (HI)
58 =-> OR.0 R4,R0,R0 // R2 := R4 IOR R0 (HI)
60 ASR.0 R1,15,R1 // R4 = R1 >>{arith} 15
61 SUB.0 16,R2,R5 // R5 := R5 - R2 (HI)
62 LSR.0 R3,R2,R0 // R2 := R1 >> R2
63 LSL.0 R1,R5,R5 // R5 := R4 << R5
64 OR.0 R5,R0,R5 // R2 := R5 IOR R2 (HI)
65 SUB.0 R2,16,r15 // R5 := R5 - R2 (HI)
68 JR (R12) // Return to caller
70 _picoMark_FUNCTION_END=
72 // picoChip Function Epilogue : __ashrsi3
73 //============================================================================
74 // All DWARF information between this marker, and the END OF DWARF
75 // marker should be included in the source file. Search for
76 // FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
77 // provide the relevent information. Add markers called
78 // _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
79 // function in question.
80 //============================================================================
82 //============================================================================
84 //============================================================================
90 .unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
92 .unalignedInitLong 0xffffffff
93 .initByte 0x1 // CIE Version
94 .ascii 16#0# // CIE Augmentation
95 .uleb128 0x1 // CIE Code Alignment Factor
96 .sleb128 2 // CIE Data Alignment Factor
97 .initByte 0xc // CIE RA Column
98 .initByte 0xc // DW_CFA_def_cfa
105 _picoMark_LSFDE0I900821033007563=
106 .unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
108 .unalignedInitLong _picoMark_DebugFrame // FDE CIE offset
109 .unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location
110 .unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
111 .initByte 0xe // DW_CFA_def_cfa_offset
112 .uleb128 0x0 // <-- FUNCTION_STACK_SIZE_GOES_HERE
113 .initByte 0x4 // DW_CFA_advance_loc4
114 .unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
115 .initByte 0xe // DW_CFA_def_cfa_offset
120 //============================================================================
121 // Abbrevation information.
122 //============================================================================
124 .section .debug_abbrev
125 _picoMark_ABBREVIATIONS=
127 .section .debug_abbrev
128 .uleb128 0x1 // (abbrev code)
129 .uleb128 0x11 // (TAG: DW_TAG_compile_unit)
130 .initByte 0x1 // DW_children_yes
131 .uleb128 0x10 // (DW_AT_stmt_list)
132 .uleb128 0x6 // (DW_FORM_data4)
133 .uleb128 0x12 // (DW_AT_high_pc)
134 .uleb128 0x1 // (DW_FORM_addr)
135 .uleb128 0x11 // (DW_AT_low_pc)
136 .uleb128 0x1 // (DW_FORM_addr)
137 .uleb128 0x25 // (DW_AT_producer)
138 .uleb128 0x8 // (DW_FORM_string)
139 .uleb128 0x13 // (DW_AT_language)
140 .uleb128 0x5 // (DW_FORM_data2)
141 .uleb128 0x3 // (DW_AT_name)
142 .uleb128 0x8 // (DW_FORM_string)
146 .uleb128 0x2 ;# (abbrev code)
147 .uleb128 0x2e ;# (TAG: DW_TAG_subprogram)
148 .initByte 0x0 ;# DW_children_no
149 .uleb128 0x3 ;# (DW_AT_name)
150 .uleb128 0x8 ;# (DW_FORM_string)
151 .uleb128 0x11 ;# (DW_AT_low_pc)
152 .uleb128 0x1 ;# (DW_FORM_addr)
153 .uleb128 0x12 ;# (DW_AT_high_pc)
154 .uleb128 0x1 ;# (DW_FORM_addr)
160 //============================================================================
161 // Line information. DwarfLib requires this to be present, but it can
163 //============================================================================
168 //============================================================================
170 //============================================================================
174 .unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
175 _picoMark_DEBUG_INFO_BEGIN=
176 .unalignedInitWord 0x2
177 .unalignedInitLong _picoMark_ABBREVIATIONS
180 // Compile unit information.
181 .uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit)
182 .unalignedInitLong _picoMark_LINES
183 .unalignedInitWord _picoMark_FUNCTION_END
184 .unalignedInitWord _picoMark_FUNCTION_BEGIN
185 // Producer is `picoChip'
186 .ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
187 .unalignedInitWord 0xcafe // ASM language
188 .ascii 16#0# // Name. DwarfLib expects this to be present.
190 .uleb128 0x2 ;# (DIE DW_TAG_subprogram)
192 // FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
193 // digit is specified using the format 16#XX#
194 .ascii 16#5f# 16#61# 16#73# 16#68# 16#72# 16#73# 16#69# 16#33# 16#0# // Function name `_ashrsi3'
195 .unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc
196 .unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc
198 .initByte 0x0 // end of compile unit children.
200 _picoMark_DEBUG_INFO_END=
202 //============================================================================
204 //============================================================================
207 // End of picoChip ASM file