--- /dev/null
+// picoChip ASM file
+//.file "clzsi2.asm"
+
+.section .text
+
+.global __clzsi2
+__clzsi2:
+_picoMark_FUNCTION_BEGIN=
+
+// picoChip Function Prologue : &__clzsi2 = 0 bytes
+
+ // What value should be operated on? If the top word is empty
+ // then count the bits in the bottom word, and add 16. If the
+ // top word is not empty, then count the bits in the top word.
+
+ // R4 stores the constant 0
+
+ sub.0 R1,0,r15 \ copy.1 16,r2
+ copyeq r0,r1
+ copyne 0,r2
+
+ // R1 now stores value to count, and R2 stores current bit offset.
+ sbc r1,r0
+ asr.0 r1,15,r15 \ add.1 r0,1,r0
+ jr (lr) \ copyne 0,r0
+=-> add.0 r0,r2,r0
+
+_picoMark_FUNCTION_END=
+
+// picoChip Function Epilogue : __clzsi2
+
+//============================================================================
+// All DWARF information between this marker, and the END OF DWARF
+// marker should be included in the source file. Search for
+// FUNCTION_STACK_SIZE_GOES_HERE and FUNCTION NAME GOES HERE, and
+// provide the relevent information. Add markers called
+// _picoMark_FUNCTION_BEGIN and _picoMark_FUNCTION_END around the
+// function in question.
+//============================================================================
+
+//============================================================================
+// Frame information.
+//============================================================================
+
+.section .debug_frame
+_picoMark_DebugFrame=
+
+// Common CIE header.
+.unalignedInitLong _picoMark_CieEnd-_picoMark_CieBegin
+_picoMark_CieBegin=
+.unalignedInitLong 0xffffffff
+.initByte 0x1 // CIE Version
+.ascii 16#0# // CIE Augmentation
+.uleb128 0x1 // CIE Code Alignment Factor
+.sleb128 2 // CIE Data Alignment Factor
+.initByte 0xc // CIE RA Column
+.initByte 0xc // DW_CFA_def_cfa
+.uleb128 0xd
+.uleb128 0x0
+.align 2
+_picoMark_CieEnd=
+
+// FDE
+_picoMark_LSFDE0I900821033007563=
+.unalignedInitLong _picoMark_FdeEnd-_picoMark_FdeBegin
+_picoMark_FdeBegin=
+.unalignedInitLong _picoMark_DebugFrame // FDE CIE offset
+.unalignedInitWord _picoMark_FUNCTION_BEGIN // FDE initial location
+.unalignedInitWord _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
+.initByte 0xe // DW_CFA_def_cfa_offset
+.uleb128 0x0 // <-- FUNCTION_STACK_SIZE_GOES_HERE
+.initByte 0x4 // DW_CFA_advance_loc4
+.unalignedInitLong _picoMark_FUNCTION_END-_picoMark_FUNCTION_BEGIN
+.initByte 0xe // DW_CFA_def_cfa_offset
+.uleb128 0x0
+.align 2
+_picoMark_FdeEnd=
+
+//============================================================================
+// Abbrevation information.
+//============================================================================
+
+.section .debug_abbrev
+_picoMark_ABBREVIATIONS=
+
+.section .debug_abbrev
+ .uleb128 0x1 // (abbrev code)
+ .uleb128 0x11 // (TAG: DW_TAG_compile_unit)
+ .initByte 0x1 // DW_children_yes
+ .uleb128 0x10 // (DW_AT_stmt_list)
+ .uleb128 0x6 // (DW_FORM_data4)
+ .uleb128 0x12 // (DW_AT_high_pc)
+ .uleb128 0x1 // (DW_FORM_addr)
+ .uleb128 0x11 // (DW_AT_low_pc)
+ .uleb128 0x1 // (DW_FORM_addr)
+ .uleb128 0x25 // (DW_AT_producer)
+ .uleb128 0x8 // (DW_FORM_string)
+ .uleb128 0x13 // (DW_AT_language)
+ .uleb128 0x5 // (DW_FORM_data2)
+ .uleb128 0x3 // (DW_AT_name)
+ .uleb128 0x8 // (DW_FORM_string)
+.initByte 0x0
+.initByte 0x0
+
+ .uleb128 0x2 ;# (abbrev code)
+ .uleb128 0x2e ;# (TAG: DW_TAG_subprogram)
+.initByte 0x0 ;# DW_children_no
+ .uleb128 0x3 ;# (DW_AT_name)
+ .uleb128 0x8 ;# (DW_FORM_string)
+ .uleb128 0x11 ;# (DW_AT_low_pc)
+ .uleb128 0x1 ;# (DW_FORM_addr)
+ .uleb128 0x12 ;# (DW_AT_high_pc)
+ .uleb128 0x1 ;# (DW_FORM_addr)
+.initByte 0x0
+.initByte 0x0
+
+.initByte 0x0
+
+//============================================================================
+// Line information. DwarfLib requires this to be present, but it can
+// be empty.
+//============================================================================
+
+.section .debug_line
+_picoMark_LINES=
+
+//============================================================================
+// Debug Information
+//============================================================================
+.section .debug_info
+
+//Fixed header.
+.unalignedInitLong _picoMark_DEBUG_INFO_END-_picoMark_DEBUG_INFO_BEGIN
+_picoMark_DEBUG_INFO_BEGIN=
+.unalignedInitWord 0x2
+.unalignedInitLong _picoMark_ABBREVIATIONS
+.initByte 0x2
+
+// Compile unit information.
+.uleb128 0x1 // (DIE 0xb) DW_TAG_compile_unit)
+.unalignedInitLong _picoMark_LINES
+.unalignedInitWord _picoMark_FUNCTION_END
+.unalignedInitWord _picoMark_FUNCTION_BEGIN
+// Producer is `picoChip'
+.ascii 16#70# 16#69# 16#63# 16#6f# 16#43# 16#68# 16#69# 16#70# 16#00#
+.unalignedInitWord 0xcafe // ASM language
+.ascii 16#0# // Name. DwarfLib expects this to be present.
+
+.uleb128 0x2 ;# (DIE DW_TAG_subprogram)
+
+// FUNCTION NAME GOES HERE. Use `echo name | od -t x1' to get the hex. Each hex
+// digit is specified using the format 16#XX#
+.ascii 16#5F# 16#63# 16#6C# 16#7A# 16#73# 16#69# 16#32# 16#0# // Function name `_clzsi2'
+.unalignedInitWord _picoMark_FUNCTION_BEGIN // DW_AT_low_pc
+.unalignedInitWord _picoMark_FUNCTION_END // DW_AT_high_pc
+
+.initByte 0x0 // end of compile unit children.
+
+_picoMark_DEBUG_INFO_END=
+
+//============================================================================
+// END OF DWARF
+//============================================================================
+
+.section .endFile
+// End of picoChip ASM file
projects / msp430-gcc.git / blobdiff