diff options
Diffstat (limited to 'gcc/config/picochip/libgccExtras/divmodsi4.asm')
| -rw-r--r-- | gcc/config/picochip/libgccExtras/divmodsi4.asm | 233 |
1 files changed, 0 insertions, 233 deletions
diff --git a/gcc/config/picochip/libgccExtras/divmodsi4.asm b/gcc/config/picochip/libgccExtras/divmodsi4.asm deleted file mode 100644 index 4fc1acb1b63..00000000000 --- a/gcc/config/picochip/libgccExtras/divmodsi4.asm +++ /dev/null @@ -1,233 +0,0 @@ -// picoChip ASM file -// -// Support for 32-bit signed division/modulus. -// -// Copyright (C) 2003, 2004, 2005, 2008, 2009 Free Software Foundation, Inc. -// Contributed by Picochip Ltd. -// Maintained by Daniel Towner (daniel.towner@picochip.com) -// -// This file is free software; you can redistribute it and/or modify it -// under the terms of the GNU General Public License as published by the -// Free Software Foundation; either version 3, or (at your option) any -// later version. -// -// This file is distributed in the hope that it will be useful, but -// WITHOUT ANY WARRANTY; without even the implied warranty of -// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -// General Public License for more details. -// -// Under Section 7 of GPL version 3, you are granted additional -// permissions described in the GCC Runtime Library Exception, version -// 3.1, as published by the Free Software Foundation. -// -// You should have received a copy of the GNU General Public License and -// a copy of the GCC Runtime Library Exception along with this program; -// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see -// <http://www.gnu.org/licenses/>. - -.section .text - -.align 8 -.global __divmodsi4 -__divmodsi4: -_picoMark_FUNCTION_BEGIN= -// picoChip Function Prologue : &__divmodsi4 = 8 bytes - - // Note: optimising for size is preferred over optimising for speed. - - // Note: the frame is setup throughout the following instructions, - // and is complete at the point the udivmodsi4 function is called. - - // Note that R9 is encoded with a pattern which indicates - // whether the remainder and quotient should be negated on - // completion. The MSB is set to the sign of the dividend - // (i.e., the sign of the remainder), while the LSB encodes - // the XOR of the two input's signs (i.e., the sign of the - // quotient. - - // If dividend is negative, invert the dividend and flag. - ASR.0 r1,15,r4 - BEQ dividendNotNegative -=-> STL R[9:8],(FP)-2 - - // Dividend is negative - negate dividend. - SUB.0 0,R0,R0 - SUBB.0 0,R1,R1 - -dividendNotNegative: - - // If divisor is negative, invert the divisor. - AND.0 [lsr r3,15],1,r5 - SUB.0 R3,0, r15 - BGE divisorNotNegative -=-> XOR.0 r4,r5,r9 - - // Divisor is negative - negate divisor. - SUB.0 0,R2,R2 - SUBB.0 0,R3,R3 - -divisorNotNegative: - - STL R[13:12],(FP)-1 \ JL (&__udivmodsi4) -=-> SUB.0 FP,8,FP // udivmodsi expects the frame to be valid still. - - // The LSB of R9 indicates whether the quotient should be negated. - AND.0 r9,1,r15 - BEQ skipQuotientNegation -=-> LDL (FP)1,R[13:12] // Convenient point to restore link/fp - - SUB.0 0,R4,R4 - SUBB.0 0,R5,R5 - -skipQuotientNegation: - - // The MSB of R9 indicates whether the remainder should be negated. - ASR.0 R9,15,r15 - BEQ epilogue - - SUB.0 0,R6,R6 - SUBB.0 0,R7,R7 - -epilogue: - - JR (R12) -=-> LDL (FP)-2,R[9:8] - -_picoMark_FUNCTION_END= -// picoChip Function Epilogue : __divmodsi4 - -//============================================================================ -// 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 0x8 // <-- 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#64# 16#69# 16#76# 16#6d# 16#6f# 16#64# 16#73# 16#69# 16#34# 16#0# // Function name `_divmodsi4' -.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 |