--- /dev/null
+/* 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
+ mov 0,%o1
+ wr %g0, 0, %y
+ udiv %o0, %o1, %o0
+ 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
Code Review / kvmfornfv.git / blobdiff