1// picoChip ASM file
2//.file "ucmpsi2.c"
3//	
4//   Support for 32-bit unsigned compare.
5//
6//   Copyright (C) 2003, 2004, 2005, 2008, 2009  Free Software Foundation, Inc.
7//   Contributed by picoChip Designs Ltd.
8//   Maintained by Daniel Towner (daniel.towner@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 3, or (at your option) any
13//   later version.
14//
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//
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//
29// Compiled from the following, and then hand optimised.
30//
31// int __ucmpsi2 (USItype x, USItype y)
32// {
33//
34//   USIunion lx; lx.l = x;
35//   USIunion ly; ly.l = y;
36//
37//   if (lx.s.high < ly.s.high)
38//     return 0;
39//   else if (lx.s.high > ly.s.high)
40//     return 2;
41//   if (lx.s.low < ly.s.low)
42//     return 0;
43//   else if (lx.s.low > ly.s.low)
44//     return 2;
45//   return 1;
46// }
47	
48.section .text
49
50.align 8
51.global ___ucmpsi2
52___ucmpsi2:
53_picoMark_FUNCTION_BEGIN=
54// picoChip Function Prologue : &___ucmpsi2 = 0 bytes
55        SUB.0 R1,R3,r15
56
57        BLO _L1
58=->     SUB.0 R3,R1,r15 \ COPY.1 0,R5
59	
60        BLO _L1
61=->     SUB.0 R0,R2,r15 \ COPY.1 2,R5
62	
63        BLO _L1
64=->     SUB.0 R2,R0,r15 \ COPY.1 0,R5
65
66        BLO _L1
67=->	COPY.0 2,R5
68	
69        COPY.0 1,R5
70_L1:
71	JR (R12)
72=->	COPY.0 R5,R0            // R0 := R5
73
74_picoMark_FUNCTION_END=
75// picoChip Function Epilogue : __ucmpsi2
76//============================================================================
77// All DWARF information between this marker, and the END OF DWARF
78// marker should be included in the source file. Search for
79// FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
80// provide the relevent information. Add markers called
81// _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
82// function in question.
83//============================================================================
84
85//============================================================================
86// Frame information. 
87//============================================================================
88
89.section .debug_frame
90_picoMark_DebugFrame=
91
92// Common CIE header.
93.unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
94_picoMark_CieBegin=
95.unalignedInitLong 0xffffffff
96.initByte 0x1	// CIE Version
97.ascii 16#0#	// CIE Augmentation
98.uleb128 0x1	// CIE Code Alignment Factor
99.sleb128 2	// CIE Data Alignment Factor
100.initByte 0xc	// CIE RA Column
101.initByte 0xc	// DW_CFA_def_cfa
102.uleb128 0xd
103.uleb128 0x0
104.align 2
105_picoMark_CieEnd=
106
107// FDE 
108_picoMark_LSFDE0I900821033007563=
109.unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
110_picoMark_FdeBegin=
111.unalignedInitLong _picoMark_DebugFrame	// FDE CIE offset
112.unalignedInitWord _picoMark_FUNCTION_BEGIN	// FDE initial location
113.unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
114.initByte 0xe	// DW_CFA_def_cfa_offset
115.uleb128 0x0	// <-- FUNCTION_STACK_SIZE_GOES_HERE
116.initByte 0x4	// DW_CFA_advance_loc4
117.unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
118.initByte 0xe	// DW_CFA_def_cfa_offset
119.uleb128 0x0
120.align 2
121_picoMark_FdeEnd=
122
123//============================================================================
124// Abbrevation information.
125//============================================================================
126
127.section .debug_abbrev
128_picoMark_ABBREVIATIONS=
129
130.section .debug_abbrev
131	.uleb128 0x1	// (abbrev code)
132	.uleb128 0x11	// (TAG: DW_TAG_compile_unit)
133	.initByte 0x1	// DW_children_yes
134	.uleb128 0x10	// (DW_AT_stmt_list)
135	.uleb128 0x6	// (DW_FORM_data4)
136	.uleb128 0x12	// (DW_AT_high_pc)
137	.uleb128 0x1	// (DW_FORM_addr)
138	.uleb128 0x11	// (DW_AT_low_pc)
139	.uleb128 0x1	// (DW_FORM_addr)
140	.uleb128 0x25	// (DW_AT_producer)
141	.uleb128 0x8	// (DW_FORM_string)
142	.uleb128 0x13	// (DW_AT_language)
143	.uleb128 0x5	// (DW_FORM_data2)
144	.uleb128 0x3	// (DW_AT_name)
145	.uleb128 0x8	// (DW_FORM_string)
146.initByte 0x0
147.initByte 0x0
148
149	.uleb128 0x2	;# (abbrev code)
150	.uleb128 0x2e	;# (TAG: DW_TAG_subprogram)
151.initByte 0x0	;# DW_children_no
152	.uleb128 0x3	;# (DW_AT_name)
153	.uleb128 0x8	;# (DW_FORM_string)
154	.uleb128 0x11	;# (DW_AT_low_pc)
155	.uleb128 0x1	;# (DW_FORM_addr)
156	.uleb128 0x12	;# (DW_AT_high_pc)
157	.uleb128 0x1	;# (DW_FORM_addr)
158.initByte 0x0
159.initByte 0x0
160
161.initByte 0x0
162
163//============================================================================
164// Line information. DwarfLib requires this to be present, but it can
165// be empty.
166//============================================================================
167
168.section .debug_line
169_picoMark_LINES=
170
171//============================================================================
172// Debug Information
173//============================================================================
174.section .debug_info
175
176//Fixed header.
177.unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
178_picoMark_DEBUG_INFO_BEGIN=
179.unalignedInitWord 0x2
180.unalignedInitLong _picoMark_ABBREVIATIONS
181.initByte 0x2
182
183// Compile unit information.
184.uleb128 0x1	// (DIE 0xb) DW_TAG_compile_unit)
185.unalignedInitLong _picoMark_LINES
186.unalignedInitWord _picoMark_FUNCTION_END
187.unalignedInitWord _picoMark_FUNCTION_BEGIN
188// Producer is `picoChip'
189.ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
190.unalignedInitWord 0xcafe // ASM language
191.ascii 16#0# // Name. DwarfLib expects this to be present.
192
193.uleb128 0x2	;# (DIE DW_TAG_subprogram)
194
195// FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
196// digit is specified using the format 16#XX#
197.ascii 16#5f# 16#5f# 16#75# 16#63# 16#6d# 16#70# 16#73# 16#69# 16#32# 16#0# // Function name `__ucmpsi2'
198.unalignedInitWord _picoMark_FUNCTION_BEGIN	// DW_AT_low_pc
199.unalignedInitWord _picoMark_FUNCTION_END	// DW_AT_high_pc
200
201.initByte 0x0	// end of compile unit children.
202
203_picoMark_DEBUG_INFO_END=
204
205//============================================================================
206// END OF DWARF
207//============================================================================
208.section .endFile
209// End of picoChip ASM file
210