Subversion Repositories or1k_soc_on_altera_embedded_dev_kit

/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.

This file is part of GNU CC.

GNU CC 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 2, or (at your option)
any later version.

GNU CC 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.

You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING.  If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */

        .text
        .align 4
        .globl __udivdi3
__udivdi3:
        save %sp,-104,%sp
        mov %i3,%o3
        cmp %i2,0
        bne .LL40
        mov %i1,%i3
        cmp %o3,%i0
        bleu .LL41
        mov %i3,%o1
        ! Inlined udiv_qrnnd
        mov     32,%g1
        subcc   %i0,%o3,%g0
1:      bcs     5f
         addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
        sub     %i0,%o3,%i0     ! this kills msb of n
        addx    %i0,%i0,%i0     ! so this cannot give carry
        subcc   %g1,1,%g1
2:      bne     1b
         subcc  %i0,%o3,%g0
        bcs     3f
         addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
        b       3f
         sub    %i0,%o3,%i0     ! this kills msb of n
4:      sub     %i0,%o3,%i0
5:      addxcc  %i0,%i0,%i0
        bcc     2b
         subcc  %g1,1,%g1
! Got carry from n.  Subtract next step to cancel this carry.
        bne     4b
         addcc  %o1,%o1,%o1     ! shift n1n0 and a 0-bit in lsb
        sub     %i0,%o3,%i0
3:      xnor    %o1,0,%o1
        ! End of inline udiv_qrnnd
        b .LL45
        mov 0,%o2
.LL41:
        cmp %o3,0
        bne .LL77
        mov %i0,%o2
        mov 1,%o0
        call .udiv,0
        mov 0,%o1
        mov %o0,%o3
        mov %i0,%o2
.LL77:
        mov 0,%o4
        ! Inlined udiv_qrnnd
        mov     32,%g1
        subcc   %o4,%o3,%g0
1:      bcs     5f
         addxcc %o2,%o2,%o2     ! shift n1n0 and a q-bit in lsb
        sub     %o4,%o3,%o4     ! this kills msb of n
        addx    %o4,%o4,%o4     ! so this cannot give carry
        subcc   %g1,1,%g1
2:      bne     1b
         subcc  %o4,%o3,%g0
        bcs     3f
         addxcc %o2,%o2,%o2     ! shift n1n0 and a q-bit in lsb
        b       3f
         sub    %o4,%o3,%o4     ! this kills msb of n
4:      sub     %o4,%o3,%o4
5:      addxcc  %o4,%o4,%o4
        bcc     2b
         subcc  %g1,1,%g1
! Got carry from n.  Subtract next step to cancel this carry.
        bne     4b
         addcc  %o2,%o2,%o2     ! shift n1n0 and a 0-bit in lsb
        sub     %o4,%o3,%o4
3:      xnor    %o2,0,%o2
        ! End of inline udiv_qrnnd
        mov %o4,%i0
        mov %i3,%o1
        ! Inlined udiv_qrnnd
        mov     32,%g1
        subcc   %i0,%o3,%g0
1:      bcs     5f
         addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
        sub     %i0,%o3,%i0     ! this kills msb of n
        addx    %i0,%i0,%i0     ! so this cannot give carry
        subcc   %g1,1,%g1
2:      bne     1b
         subcc  %i0,%o3,%g0
        bcs     3f
         addxcc %o1,%o1,%o1     ! shift n1n0 and a q-bit in lsb
        b       3f
         sub    %i0,%o3,%i0     ! this kills msb of n
4:      sub     %i0,%o3,%i0
5:      addxcc  %i0,%i0,%i0
        bcc     2b
         subcc  %g1,1,%g1
! Got carry from n.  Subtract next step to cancel this carry.
        bne     4b
         addcc  %o1,%o1,%o1     ! shift n1n0 and a 0-bit in lsb
        sub     %i0,%o3,%i0
3:      xnor    %o1,0,%o1
        ! End of inline udiv_qrnnd
        b .LL78
        mov %o1,%l1
.LL40:
        cmp %i2,%i0
        bleu .LL46
        sethi %hi(65535),%o0
        b .LL73
        mov 0,%o1
.LL46:
        or %o0,%lo(65535),%o0
        cmp %i2,%o0
        bgu .LL53
        mov %i2,%o1
        cmp %i2,256
        addx %g0,-1,%o0
        b .LL59
        and %o0,8,%o2
.LL53:
        sethi %hi(16777215),%o0
        or %o0,%lo(16777215),%o0
        cmp %o1,%o0
        bgu .LL59
        mov 24,%o2
        mov 16,%o2
.LL59:
        srl %o1,%o2,%o1
        sethi %hi(__clz_tab),%o0
        or %o0,%lo(__clz_tab),%o0
        ldub [%o1+%o0],%o0
        add %o0,%o2,%o0
        mov 32,%o1
        subcc %o1,%o0,%o2
        bne,a .LL67
        mov 32,%o0
        cmp %i0,%i2
        bgu .LL69
        cmp %i3,%o3
        blu .LL73
        mov 0,%o1
.LL69:
        b .LL73
        mov 1,%o1
.LL67:
        sub %o0,%o2,%o0
        sll %i2,%o2,%i2
        srl %o3,%o0,%o1
        or %i2,%o1,%i2
        sll %o3,%o2,%o3
        srl %i0,%o0,%o1
        sll %i0,%o2,%i0
        srl %i3,%o0,%o0
        or %i0,%o0,%i0
        sll %i3,%o2,%i3
        mov %i0,%o5
        mov %o1,%o4
        ! Inlined udiv_qrnnd
        mov     32,%g1
        subcc   %o4,%i2,%g0
1:      bcs     5f
         addxcc %o5,%o5,%o5     ! shift n1n0 and a q-bit in lsb
        sub     %o4,%i2,%o4     ! this kills msb of n
        addx    %o4,%o4,%o4     ! so this cannot give carry
        subcc   %g1,1,%g1
2:      bne     1b
         subcc  %o4,%i2,%g0
        bcs     3f
         addxcc %o5,%o5,%o5     ! shift n1n0 and a q-bit in lsb
        b       3f
         sub    %o4,%i2,%o4     ! this kills msb of n
4:      sub     %o4,%i2,%o4
5:      addxcc  %o4,%o4,%o4
        bcc     2b
         subcc  %g1,1,%g1
! Got carry from n.  Subtract next step to cancel this carry.
        bne     4b
         addcc  %o5,%o5,%o5     ! shift n1n0 and a 0-bit in lsb
        sub     %o4,%i2,%o4
3:      xnor    %o5,0,%o5
        ! End of inline udiv_qrnnd
        mov %o4,%i0
        mov %o5,%o1
        ! Inlined umul_ppmm
        wr      %g0,%o1,%y      ! SPARC has 0-3 delay insn after a wr
        sra     %o3,31,%g2      ! Do not move this insn
        and     %o1,%g2,%g2     ! Do not move this insn
        andcc   %g0,0,%g1       ! Do not move this insn
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,%o3,%g1
        mulscc  %g1,0,%g1
        add     %g1,%g2,%o0
        rd      %y,%o2
        cmp %o0,%i0
        bgu,a .LL73
        add %o1,-1,%o1
        bne,a .LL45
        mov 0,%o2
        cmp %o2,%i3
        bleu .LL45
        mov 0,%o2
        add %o1,-1,%o1
.LL73:
        mov 0,%o2
.LL45:
        mov %o1,%l1
.LL78:
        mov %o2,%l0
        mov %l0,%i0
        mov %l1,%i1
        ret
        restore