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Diffstat (limited to 'libgcc/config/nds32/lib1asmsrc-newlib.S')
| -rw-r--r-- | libgcc/config/nds32/lib1asmsrc-newlib.S | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/libgcc/config/nds32/lib1asmsrc-newlib.S b/libgcc/config/nds32/lib1asmsrc-newlib.S new file mode 100644 index 00000000000..6eb3fb0a753 --- /dev/null +++ b/libgcc/config/nds32/lib1asmsrc-newlib.S @@ -0,0 +1,204 @@ +/* newlib libgcc routines of Andes NDS32 cpu for GNU compiler + Copyright (C) 2012-2013 Free Software Foundation, Inc. + Contributed by Andes Technology Corporation. + + This file is part of GCC. + + GCC 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. + + GCC 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 .mdebug.abi_nds32 + .previous + +#ifdef L_divsi3 + + .text + .align 2 + .globl __divsi3 + .type __divsi3, @function +__divsi3: + movi $r5, 0 ! res = 0 + xor $r4, $r0, $r1 ! neg + bltz $r0, .L1 + bltz $r1, .L2 +.L3: + movi $r2, 1 ! bit = 1 + slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor + beqz $r3, .L5 + bltz $r1, .L5 + +.L4: + slli $r2, $r2, 1 + beqz $r2, .L6 + slli $r1, $r1, 1 + slt $r3, $r1, $r0 + beqz $r3, .L5 + bgez $r1, .L4 + +.L5: + slt $r3, $r0, $r1 + bnez $r3, .L8 + sub $r0, $r0, $r1 + or $r5, $r5, $r2 +.L8: + srli $r1, $r1, 1 + srli $r2, $r2, 1 + bnez $r2, .L5 +.L6: + bgez $r4, .L7 + subri $r5, $r5, 0 ! negate if $r4 < 0 +.L7: + move $r0, $r5 + ret +.L1: + subri $r0, $r0, 0 ! change neg to pos + bgez $r1, .L3 +.L2: + subri $r1, $r1, 0 ! change neg to pos + j .L3 + .size __divsi3, .-__divsi3 + +#endif /* L_divsi3 */ + + +#ifdef L_modsi3 + + .text + .align 2 + .globl __modsi3 + .type __modsi3, @function +__modsi3: + movi $r5, 0 ! res = 0 + move $r4, $r0 ! neg + bltz $r0, .L1 + bltz $r1, .L2 +.L3: + movi $r2, 1 ! bit = 1 + slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor + beqz $r3, .L5 + bltz $r1, .L5 + +.L4: + slli $r2, $r2, 1 + beqz $r2, .L6 + slli $r1, $r1, 1 + slt $r3, $r1, $r0 + beqz $r3, .L5 + bgez $r1, .L4 + +.L5: + slt $r3, $r0, $r1 + bnez $r3, .L8 + sub $r0, $r0, $r1 + or $r5, $r5, $r2 +.L8: + srli $r1, $r1, 1 + srli $r2, $r2, 1 + bnez $r2, .L5 +.L6: + bgez $r4, .L7 + subri $r0, $r0, 0 ! negate if $r4 < 0 +.L7: + ret +.L1: + subri $r0, $r0, 0 ! change neg to pos + bgez $r1, .L3 +.L2: + subri $r1, $r1, 0 ! change neg to pos + j .L3 + .size __modsi3, .-__modsi3 + +#endif /* L_modsi3 */ + + +#ifdef L_udivsi3 + + .text + .align 2 + .globl __udivsi3 + .type __udivsi3, @function +__udivsi3: + movi $r5, 0 ! res = 0 + movi $r2, 1 ! bit = 1 + slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor + beqz $r3, .L5 + bltz $r1, .L5 + +.L4: + slli $r2, $r2, 1 + beqz $r2, .L6 + slli $r1, $r1, 1 + slt $r3, $r1, $r0 + beqz $r3, .L5 + bgez $r1, .L4 + +.L5: + slt $r3, $r0, $r1 + bnez $r3, .L8 + sub $r0, $r0, $r1 + or $r5, $r5, $r2 +.L8: + srli $r1, $r1, 1 + srli $r2, $r2, 1 + bnez $r2, .L5 +.L6: + move $r0, $r5 + ret + .size __udivsi3, .-__udivsi3 + +#endif /* L_udivsi3 */ + + +#ifdef L_umodsi3 + + .text + .align 2 + .globl __umodsi3 + .type __umodsi3, @function +__umodsi3: + movi $r5, 0 ! res = 0 + movi $r2, 1 ! bit = 1 + slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor + beqz $r3, .L5 + bltz $r1, .L5 + +.L4: + slli $r2, $r2, 1 + beqz $r2, .L6 + slli $r1, $r1, 1 + slt $r3, $r1, $r0 + beqz $r3, .L5 + bgez $r1, .L4 + +.L5: + slt $r3, $r0, $r1 + bnez $r3, .L8 + sub $r0, $r0, $r1 + or $r5, $r5, $r2 +.L8: + srli $r1, $r1, 1 + srli $r2, $r2, 1 + bnez $r2, .L5 +.L6: + ret + .size __umodsi3, .-__umodsi3 + +#endif /* L_umodsi3 */ + +/* ----------------------------------------------------------- */ |