| Index: gcc/gmp/mpn/sparc32/sub_n.asm
|
| diff --git a/gcc/gmp/mpn/sparc32/sub_n.asm b/gcc/gmp/mpn/sparc32/sub_n.asm
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| deleted file mode 100644
|
| index 4fc759dcbf6c415316bf11c11fe7ceebf14145b1..0000000000000000000000000000000000000000
|
| --- a/gcc/gmp/mpn/sparc32/sub_n.asm
|
| +++ /dev/null
|
| @@ -1,324 +0,0 @@
|
| -dnl SPARC mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
|
| -dnl store difference in a third limb vector.
|
| -
|
| -dnl Copyright 1995, 1996, 2000 Free Software Foundation, Inc.
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| -
|
| -dnl This file is part of the GNU MP Library.
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| -
|
| -dnl The GNU MP Library is free software; you can redistribute it and/or modify
|
| -dnl it under the terms of the GNU Lesser General Public License as published
|
| -dnl by the Free Software Foundation; either version 3 of the License, or (at
|
| -dnl your option) any later version.
|
| -
|
| -dnl The GNU MP Library is distributed in the hope that it will be useful, but
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| -dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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| -dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
|
| -dnl License for more details.
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| -
|
| -dnl You should have received a copy of the GNU Lesser General Public License
|
| -dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
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| -
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| -
|
| -include(`../config.m4')
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| -
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| -C INPUT PARAMETERS
|
| -define(res_ptr,%o0)
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| -define(s1_ptr,%o1)
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| -define(s2_ptr,%o2)
|
| -define(n,%o3)
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| -
|
| -ASM_START()
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| -PROLOGUE(mpn_sub_n)
|
| - xor s2_ptr,res_ptr,%g1
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| - andcc %g1,4,%g0
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| - bne L(1) C branch if alignment differs
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| - nop
|
| -C ** V1a **
|
| - andcc res_ptr,4,%g0 C res_ptr unaligned? Side effect: cy=0
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| - be L(v1) C if no, branch
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| - nop
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| -C Add least significant limb separately to align res_ptr and s2_ptr
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| - ld [s1_ptr],%g4
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| - add s1_ptr,4,s1_ptr
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| - ld [s2_ptr],%g2
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| - add s2_ptr,4,s2_ptr
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| - add n,-1,n
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| - subcc %g4,%g2,%o4
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| - st %o4,[res_ptr]
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| - add res_ptr,4,res_ptr
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| -L(v1): addx %g0,%g0,%o4 C save cy in register
|
| - cmp n,2 C if n < 2 ...
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| - bl L(end2) C ... branch to tail code
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| - subcc %g0,%o4,%g0 C restore cy
|
| -
|
| - ld [s1_ptr+0],%g4
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| - addcc n,-10,n
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| - ld [s1_ptr+4],%g1
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| - ldd [s2_ptr+0],%g2
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| - blt L(fin1)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -C Add blocks of 8 limbs until less than 8 limbs remain
|
| -L(loop1):
|
| - subxcc %g4,%g2,%o4
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| - ld [s1_ptr+8],%g4
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| - subxcc %g1,%g3,%o5
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| - ld [s1_ptr+12],%g1
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| - ldd [s2_ptr+8],%g2
|
| - std %o4,[res_ptr+0]
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| - subxcc %g4,%g2,%o4
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| - ld [s1_ptr+16],%g4
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| - subxcc %g1,%g3,%o5
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| - ld [s1_ptr+20],%g1
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| - ldd [s2_ptr+16],%g2
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| - std %o4,[res_ptr+8]
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| - subxcc %g4,%g2,%o4
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| - ld [s1_ptr+24],%g4
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| - subxcc %g1,%g3,%o5
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| - ld [s1_ptr+28],%g1
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| - ldd [s2_ptr+24],%g2
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| - std %o4,[res_ptr+16]
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| - subxcc %g4,%g2,%o4
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| - ld [s1_ptr+32],%g4
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| - subxcc %g1,%g3,%o5
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| - ld [s1_ptr+36],%g1
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| - ldd [s2_ptr+32],%g2
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| - std %o4,[res_ptr+24]
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| - addx %g0,%g0,%o4 C save cy in register
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| - addcc n,-8,n
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| - add s1_ptr,32,s1_ptr
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| - add s2_ptr,32,s2_ptr
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| - add res_ptr,32,res_ptr
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| - bge L(loop1)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -
|
| -L(fin1):
|
| - addcc n,8-2,n
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| - blt L(end1)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -C Add blocks of 2 limbs until less than 2 limbs remain
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| -L(loope1):
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| - subxcc %g4,%g2,%o4
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| - ld [s1_ptr+8],%g4
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| - subxcc %g1,%g3,%o5
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| - ld [s1_ptr+12],%g1
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| - ldd [s2_ptr+8],%g2
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| - std %o4,[res_ptr+0]
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| - addx %g0,%g0,%o4 C save cy in register
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| - addcc n,-2,n
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| - add s1_ptr,8,s1_ptr
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| - add s2_ptr,8,s2_ptr
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| - add res_ptr,8,res_ptr
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| - bge L(loope1)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -L(end1):
|
| - subxcc %g4,%g2,%o4
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| - subxcc %g1,%g3,%o5
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| - std %o4,[res_ptr+0]
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| - addx %g0,%g0,%o4 C save cy in register
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| -
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| - andcc n,1,%g0
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| - be L(ret1)
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| - subcc %g0,%o4,%g0 C restore cy
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| -C Add last limb
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| - ld [s1_ptr+8],%g4
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| - ld [s2_ptr+8],%g2
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| - subxcc %g4,%g2,%o4
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| - st %o4,[res_ptr+8]
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| -
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| -L(ret1):
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| - retl
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| - addx %g0,%g0,%o0 C return carry-out from most sign. limb
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| -
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| -L(1): xor s1_ptr,res_ptr,%g1
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| - andcc %g1,4,%g0
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| - bne L(2)
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| - nop
|
| -C ** V1b **
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| - andcc res_ptr,4,%g0 C res_ptr unaligned? Side effect: cy=0
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| - be L(v1b) C if no, branch
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| - nop
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| -C Add least significant limb separately to align res_ptr and s1_ptr
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| - ld [s2_ptr],%g4
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| - add s2_ptr,4,s2_ptr
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| - ld [s1_ptr],%g2
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| - add s1_ptr,4,s1_ptr
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| - add n,-1,n
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| - subcc %g2,%g4,%o4
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| - st %o4,[res_ptr]
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| - add res_ptr,4,res_ptr
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| -L(v1b): addx %g0,%g0,%o4 C save cy in register
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| - cmp n,2 C if n < 2 ...
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| - bl L(end2) C ... branch to tail code
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| - subcc %g0,%o4,%g0 C restore cy
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| -
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| - ld [s2_ptr+0],%g4
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| - addcc n,-10,n
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| - ld [s2_ptr+4],%g1
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| - ldd [s1_ptr+0],%g2
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| - blt L(fin1b)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -C Add blocks of 8 limbs until less than 8 limbs remain
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| -L(loop1b):
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| - subxcc %g2,%g4,%o4
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| - ld [s2_ptr+8],%g4
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| - subxcc %g3,%g1,%o5
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| - ld [s2_ptr+12],%g1
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| - ldd [s1_ptr+8],%g2
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| - std %o4,[res_ptr+0]
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| - subxcc %g2,%g4,%o4
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| - ld [s2_ptr+16],%g4
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| - subxcc %g3,%g1,%o5
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| - ld [s2_ptr+20],%g1
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| - ldd [s1_ptr+16],%g2
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| - std %o4,[res_ptr+8]
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| - subxcc %g2,%g4,%o4
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| - ld [s2_ptr+24],%g4
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| - subxcc %g3,%g1,%o5
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| - ld [s2_ptr+28],%g1
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| - ldd [s1_ptr+24],%g2
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| - std %o4,[res_ptr+16]
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| - subxcc %g2,%g4,%o4
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| - ld [s2_ptr+32],%g4
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| - subxcc %g3,%g1,%o5
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| - ld [s2_ptr+36],%g1
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| - ldd [s1_ptr+32],%g2
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| - std %o4,[res_ptr+24]
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| - addx %g0,%g0,%o4 C save cy in register
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| - addcc n,-8,n
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| - add s1_ptr,32,s1_ptr
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| - add s2_ptr,32,s2_ptr
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| - add res_ptr,32,res_ptr
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| - bge L(loop1b)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -
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| -L(fin1b):
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| - addcc n,8-2,n
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| - blt L(end1b)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -C Add blocks of 2 limbs until less than 2 limbs remain
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| -L(loope1b):
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| - subxcc %g2,%g4,%o4
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| - ld [s2_ptr+8],%g4
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| - subxcc %g3,%g1,%o5
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| - ld [s2_ptr+12],%g1
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| - ldd [s1_ptr+8],%g2
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| - std %o4,[res_ptr+0]
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| - addx %g0,%g0,%o4 C save cy in register
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| - addcc n,-2,n
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| - add s1_ptr,8,s1_ptr
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| - add s2_ptr,8,s2_ptr
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| - add res_ptr,8,res_ptr
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| - bge L(loope1b)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -L(end1b):
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| - subxcc %g2,%g4,%o4
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| - subxcc %g3,%g1,%o5
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| - std %o4,[res_ptr+0]
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| - addx %g0,%g0,%o4 C save cy in register
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| -
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| - andcc n,1,%g0
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| - be L(ret1b)
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| - subcc %g0,%o4,%g0 C restore cy
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| -C Add last limb
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| - ld [s2_ptr+8],%g4
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| - ld [s1_ptr+8],%g2
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| - subxcc %g2,%g4,%o4
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| - st %o4,[res_ptr+8]
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| -
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| -L(ret1b):
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| - retl
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| - addx %g0,%g0,%o0 C return carry-out from most sign. limb
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| -
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| -C ** V2 **
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| -C If we come here, the alignment of s1_ptr and res_ptr as well as the
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| -C alignment of s2_ptr and res_ptr differ. Since there are only two ways
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| -C things can be aligned (that we care about) we now know that the alignment
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| -C of s1_ptr and s2_ptr are the same.
|
| -
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| -L(2): cmp n,1
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| - be L(jone)
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| - nop
|
| - andcc s1_ptr,4,%g0 C s1_ptr unaligned? Side effect: cy=0
|
| - be L(v2) C if no, branch
|
| - nop
|
| -C Add least significant limb separately to align s1_ptr and s2_ptr
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| - ld [s1_ptr],%g4
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| - add s1_ptr,4,s1_ptr
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| - ld [s2_ptr],%g2
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| - add s2_ptr,4,s2_ptr
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| - add n,-1,n
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| - subcc %g4,%g2,%o4
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| - st %o4,[res_ptr]
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| - add res_ptr,4,res_ptr
|
| -
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| -L(v2): addx %g0,%g0,%o4 C save cy in register
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| - addcc n,-8,n
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| - blt L(fin2)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -C Add blocks of 8 limbs until less than 8 limbs remain
|
| -L(loop2):
|
| - ldd [s1_ptr+0],%g2
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| - ldd [s2_ptr+0],%o4
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| - subxcc %g2,%o4,%g2
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| - st %g2,[res_ptr+0]
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| - subxcc %g3,%o5,%g3
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| - st %g3,[res_ptr+4]
|
| - ldd [s1_ptr+8],%g2
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| - ldd [s2_ptr+8],%o4
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| - subxcc %g2,%o4,%g2
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| - st %g2,[res_ptr+8]
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| - subxcc %g3,%o5,%g3
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| - st %g3,[res_ptr+12]
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| - ldd [s1_ptr+16],%g2
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| - ldd [s2_ptr+16],%o4
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| - subxcc %g2,%o4,%g2
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| - st %g2,[res_ptr+16]
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| - subxcc %g3,%o5,%g3
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| - st %g3,[res_ptr+20]
|
| - ldd [s1_ptr+24],%g2
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| - ldd [s2_ptr+24],%o4
|
| - subxcc %g2,%o4,%g2
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| - st %g2,[res_ptr+24]
|
| - subxcc %g3,%o5,%g3
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| - st %g3,[res_ptr+28]
|
| - addx %g0,%g0,%o4 C save cy in register
|
| - addcc n,-8,n
|
| - add s1_ptr,32,s1_ptr
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| - add s2_ptr,32,s2_ptr
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| - add res_ptr,32,res_ptr
|
| - bge L(loop2)
|
| - subcc %g0,%o4,%g0 C restore cy
|
| -
|
| -L(fin2):
|
| - addcc n,8-2,n
|
| - blt L(end2)
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| - subcc %g0,%o4,%g0 C restore cy
|
| -L(loope2):
|
| - ldd [s1_ptr+0],%g2
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| - ldd [s2_ptr+0],%o4
|
| - subxcc %g2,%o4,%g2
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| - st %g2,[res_ptr+0]
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| - subxcc %g3,%o5,%g3
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| - st %g3,[res_ptr+4]
|
| - addx %g0,%g0,%o4 C save cy in register
|
| - addcc n,-2,n
|
| - add s1_ptr,8,s1_ptr
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| - add s2_ptr,8,s2_ptr
|
| - add res_ptr,8,res_ptr
|
| - bge L(loope2)
|
| - subcc %g0,%o4,%g0 C restore cy
|
| -L(end2):
|
| - andcc n,1,%g0
|
| - be L(ret2)
|
| - subcc %g0,%o4,%g0 C restore cy
|
| -C Add last limb
|
| -L(jone):
|
| - ld [s1_ptr],%g4
|
| - ld [s2_ptr],%g2
|
| - subxcc %g4,%g2,%o4
|
| - st %o4,[res_ptr]
|
| -
|
| -L(ret2):
|
| - retl
|
| - addx %g0,%g0,%o0 C return carry-out from most sign. limb
|
| -EPILOGUE(mpn_sub_n)
|
|
|