205 lines
3.8 KiB
ArmAsm
205 lines
3.8 KiB
ArmAsm
/* newlib libgcc routines of Andes NDS32 cpu for GNU compiler
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Copyright (C) 2012-2019 Free Software Foundation, Inc.
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Contributed by Andes Technology Corporation.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published
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by the Free Software Foundation; either version 3, or (at your
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option) any later version.
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GCC is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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.section .mdebug.abi_nds32
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.previous
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#ifdef L_divsi3
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.text
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.align 2
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.globl __divsi3
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.type __divsi3, @function
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__divsi3:
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movi $r5, 0 ! res = 0
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xor $r4, $r0, $r1 ! neg
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bltz $r0, .L1
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bltz $r1, .L2
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.L3:
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movi $r2, 1 ! bit = 1
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slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor
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beqz $r3, .L5
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bltz $r1, .L5
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.L4:
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slli $r2, $r2, 1
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beqz $r2, .L6
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slli $r1, $r1, 1
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slt $r3, $r1, $r0
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beqz $r3, .L5
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bgez $r1, .L4
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.L5:
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slt $r3, $r0, $r1
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bnez $r3, .L8
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sub $r0, $r0, $r1
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or $r5, $r5, $r2
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.L8:
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srli $r1, $r1, 1
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srli $r2, $r2, 1
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bnez $r2, .L5
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.L6:
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bgez $r4, .L7
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subri $r5, $r5, 0 ! negate if $r4 < 0
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.L7:
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move $r0, $r5
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ret
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.L1:
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subri $r0, $r0, 0 ! change neg to pos
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bgez $r1, .L3
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.L2:
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subri $r1, $r1, 0 ! change neg to pos
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j .L3
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.size __divsi3, .-__divsi3
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#endif /* L_divsi3 */
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#ifdef L_modsi3
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.text
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.align 2
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.globl __modsi3
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.type __modsi3, @function
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__modsi3:
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movi $r5, 0 ! res = 0
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move $r4, $r0 ! neg
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bltz $r0, .L1
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bltz $r1, .L2
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.L3:
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movi $r2, 1 ! bit = 1
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slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor
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beqz $r3, .L5
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bltz $r1, .L5
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.L4:
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slli $r2, $r2, 1
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beqz $r2, .L6
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slli $r1, $r1, 1
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slt $r3, $r1, $r0
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beqz $r3, .L5
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bgez $r1, .L4
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.L5:
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slt $r3, $r0, $r1
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bnez $r3, .L8
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sub $r0, $r0, $r1
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or $r5, $r5, $r2
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.L8:
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srli $r1, $r1, 1
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srli $r2, $r2, 1
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bnez $r2, .L5
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.L6:
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bgez $r4, .L7
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subri $r0, $r0, 0 ! negate if $r4 < 0
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.L7:
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ret
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.L1:
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subri $r0, $r0, 0 ! change neg to pos
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bgez $r1, .L3
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.L2:
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subri $r1, $r1, 0 ! change neg to pos
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j .L3
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.size __modsi3, .-__modsi3
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#endif /* L_modsi3 */
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#ifdef L_udivsi3
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.text
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.align 2
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.globl __udivsi3
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.type __udivsi3, @function
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__udivsi3:
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movi $r5, 0 ! res = 0
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movi $r2, 1 ! bit = 1
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slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor
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beqz $r3, .L5
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bltz $r1, .L5
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.L4:
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slli $r2, $r2, 1
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beqz $r2, .L6
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slli $r1, $r1, 1
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slt $r3, $r1, $r0
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beqz $r3, .L5
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bgez $r1, .L4
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.L5:
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slt $r3, $r0, $r1
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bnez $r3, .L8
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sub $r0, $r0, $r1
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or $r5, $r5, $r2
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.L8:
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srli $r1, $r1, 1
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srli $r2, $r2, 1
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bnez $r2, .L5
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.L6:
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move $r0, $r5
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ret
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.size __udivsi3, .-__udivsi3
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#endif /* L_udivsi3 */
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#ifdef L_umodsi3
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.text
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.align 2
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.globl __umodsi3
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.type __umodsi3, @function
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__umodsi3:
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movi $r5, 0 ! res = 0
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movi $r2, 1 ! bit = 1
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slt $r3, $r1, $r0 ! test if dividend is smaller than or equal to divisor
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beqz $r3, .L5
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bltz $r1, .L5
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.L4:
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slli $r2, $r2, 1
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beqz $r2, .L6
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slli $r1, $r1, 1
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slt $r3, $r1, $r0
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beqz $r3, .L5
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bgez $r1, .L4
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.L5:
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slt $r3, $r0, $r1
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bnez $r3, .L8
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sub $r0, $r0, $r1
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or $r5, $r5, $r2
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.L8:
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srli $r1, $r1, 1
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srli $r2, $r2, 1
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bnez $r2, .L5
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.L6:
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ret
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.size __umodsi3, .-__umodsi3
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#endif /* L_umodsi3 */
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/* ----------------------------------------------------------- */
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