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* stdlib/Makefile (mpn-stuff): New target.
(copy-mpn): Use it. * Code copied from GMP updated to 1.937 version. * stdlib/strtod.c (HAVE_ALLOCA): Define this for gmp headers.
This commit is contained in:
Roland McGrath
57
sysdeps/sparc/sparc64/add_n.s
Normal file
57
sysdeps/sparc/sparc64/add_n.s
Normal file
@ -0,0 +1,57 @@
|
||||
! SPARC v9 __mpn_add_n -- Add two limb vectors of the same length > 0 and store
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! sum in a third limb vector.
|
||||
|
||||
! Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
||||
|
||||
! This file is part of the GNU MP Library.
|
||||
|
||||
! The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
! it under the terms of the GNU Library General Public License as published by
|
||||
! the Free Software Foundation; either version 2 of the License, or (at your
|
||||
! option) any later version.
|
||||
|
||||
! The GNU MP Library 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 Library General Public
|
||||
! License for more details.
|
||||
|
||||
! You should have received a copy of the GNU Library General Public License
|
||||
! along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
|
||||
! INPUT PARAMETERS
|
||||
! res_ptr %o0
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! s1_ptr %o1
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! s2_ptr %o2
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! size %o3
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.section ".text"
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.align 4
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.global __mpn_add_n
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.type __mpn_add_n,#function
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.proc 04
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__mpn_add_n:
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sub %g0,%o3,%g3
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sllx %o3,3,%g1
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add %o1,%g1,%o1 ! make s1_ptr point at end
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add %o2,%g1,%o2 ! make s2_ptr point at end
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add %o0,%g1,%o0 ! make res_ptr point at end
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mov 0,%o4 ! clear carry variable
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sllx %g3,3,%o5 ! compute initial address index
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.Loop: ldx [%o2+%o5],%g1 ! load s2 limb
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add %g3,1,%g3 ! increment loop count
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ldx [%o1+%o5],%g2 ! load s1 limb
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addcc %g1,%o4,%g1 ! add s2 limb and carry variable
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movcc %xcc,0,%o4 ! if carry-out, o4 was 1; clear it
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addcc %g1,%g2,%g1 ! add s1 limb to sum
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stx %g1,[%o0+%o5] ! store result
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add %o5,8,%o5 ! increment address index
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brnz,pt %g3,.Loop
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movcs %xcc,1,%o4 ! if s1 add gave carry, record it
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retl
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mov %o4,%o0
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.LLfe1:
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.size __mpn_add_n,.LLfe1-__mpn_add_n
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||||
88
sysdeps/sparc/sparc64/addmul_1.s
Normal file
88
sysdeps/sparc/sparc64/addmul_1.s
Normal file
@ -0,0 +1,88 @@
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! SPARC v9 __mpn_addmul_1 -- Multiply a limb vector with a single limb and
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! add the product to a second limb vector.
|
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|
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! Copyright (C) 1996 Free Software Foundation, Inc.
|
||||
|
||||
! This file is part of the GNU MP Library.
|
||||
|
||||
! The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
! it under the terms of the GNU Library General Public License as published by
|
||||
! the Free Software Foundation; either version 2 of the License, or (at your
|
||||
! option) any later version.
|
||||
|
||||
! The GNU MP Library 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 Library General Public
|
||||
! License for more details.
|
||||
|
||||
! You should have received a copy of the GNU Library General Public License
|
||||
! along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
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|
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! INPUT PARAMETERS
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! res_ptr o0
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! s1_ptr o1
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! size o2
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! s2_limb o3
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.section ".text"
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.align 4
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.global __mpn_addmul_1
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.type __mpn_addmul_1,#function
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.proc 016
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__mpn_addmul_1:
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!#PROLOGUE# 0
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save %sp,-160,%sp
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!#PROLOGUE# 1
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sub %g0,%i2,%o7
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sllx %o7,3,%g5
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sub %i1,%g5,%o3
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sub %i0,%g5,%o4
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mov 0,%o0 ! zero cy_limb
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srl %i3,0,%o1 ! extract low 32 bits of s2_limb
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srlx %i3,32,%i3 ! extract high 32 bits of s2_limb
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mov 1,%o2
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sllx %o2,32,%o2 ! o2 = 0x100000000
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|
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! hi !
|
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! mid-1 !
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! mid-2 !
|
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! lo !
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.Loop:
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sllx %o7,3,%g1
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ldx [%o3+%g1],%g5
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srl %g5,0,%i0 ! zero hi bits
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srlx %g5,32,%g5
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mulx %o1,%i0,%i4 ! lo product
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mulx %i3,%i0,%i1 ! mid-1 product
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mulx %o1,%g5,%l2 ! mid-2 product
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mulx %i3,%g5,%i5 ! hi product
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srlx %i4,32,%i0 ! extract high 32 bits of lo product...
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add %i1,%i0,%i1 ! ...and add it to the mid-1 product
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addcc %i1,%l2,%i1 ! add mid products
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mov 0,%l0 ! we need the carry from that add...
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movcs %xcc,%o2,%l0 ! ...compute it and...
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add %i5,%l0,%i5 ! ...add to bit 32 of the hi product
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sllx %i1,32,%i0 ! align low bits of mid product
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srl %i4,0,%g5 ! zero high 32 bits of lo product
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add %i0,%g5,%i0 ! combine into low 64 bits of result
|
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srlx %i1,32,%i1 ! extract high bits of mid product...
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add %i5,%i1,%i1 ! ...and add them to the high result
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addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result
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mov 0,%g5
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movcs %xcc,1,%g5
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add %o7,1,%o7
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ldx [%o4+%g1],%l1
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addcc %l1,%i0,%i0
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movcs %xcc,1,%g5
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stx %i0,[%o4+%g1]
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brnz %o7,.Loop
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add %i1,%g5,%o0 ! compute new cy_limb
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mov %o0,%i0
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ret
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restore
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.LLfe1:
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.size __mpn_addmul_1,.LLfe1-__mpn_addmul_1
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26
sysdeps/sparc/sparc64/gmp-mparam.h
Normal file
26
sysdeps/sparc/sparc64/gmp-mparam.h
Normal file
@ -0,0 +1,26 @@
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/* gmp-mparam.h -- Compiler/machine parameter header file.
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Copyright (C) 1991, 1993, 1994 Free Software Foundation, Inc.
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||||
|
||||
This file is part of the GNU MP Library.
|
||||
|
||||
The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU Library General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or (at your
|
||||
option) any later version.
|
||||
|
||||
The GNU MP Library 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 Library General Public
|
||||
License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public License
|
||||
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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||||
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#define BITS_PER_MP_LIMB 64
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#define BYTES_PER_MP_LIMB 8
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#define BITS_PER_LONGINT 64
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#define BITS_PER_INT 32
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#define BITS_PER_SHORTINT 16
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#define BITS_PER_CHAR 8
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95
sysdeps/sparc/sparc64/lshift.s
Normal file
95
sysdeps/sparc/sparc64/lshift.s
Normal file
@ -0,0 +1,95 @@
|
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! SPARC v9 __mpn_lshift --
|
||||
|
||||
! Copyright (C) 1996 Free Software Foundation, Inc.
|
||||
|
||||
! This file is part of the GNU MP Library.
|
||||
|
||||
! The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
! it under the terms of the GNU Library General Public License as published by
|
||||
! the Free Software Foundation; either version 2 of the License, or (at your
|
||||
! option) any later version.
|
||||
|
||||
! The GNU MP Library 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 Library General Public
|
||||
! License for more details.
|
||||
|
||||
! You should have received a copy of the GNU Library General Public License
|
||||
! along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
|
||||
! INPUT PARAMETERS
|
||||
! res_ptr %o0
|
||||
! src_ptr %o1
|
||||
! size %o2
|
||||
! cnt %o3
|
||||
|
||||
.section ".text"
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.align 4
|
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.global __mpn_lshift
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.type __mpn_lshift,#function
|
||||
.proc 04
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||||
__mpn_lshift:
|
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sllx %o2,3,%g1
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add %o1,%g1,%o1 ! make %o1 point at end of src
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||||
ldx [%o1-8],%g2 ! load first limb
|
||||
sub %g0,%o3,%o5 ! negate shift count
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||||
add %o0,%g1,%o0 ! make %o0 point at end of res
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add %o2,-1,%o2
|
||||
and %o2,4-1,%g4 ! number of limbs in first loop
|
||||
srlx %g2,%o5,%g1 ! compute function result
|
||||
brz,pn %g4,.L0 ! if multiple of 4 limbs, skip first loop
|
||||
stx %g1,[%sp+80]
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||||
|
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sub %o2,%g4,%o2 ! adjust count for main loop
|
||||
|
||||
.Loop0: ldx [%o1-16],%g3
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add %o0,-8,%o0
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||||
add %o1,-8,%o1
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add %g4,-1,%g4
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sllx %g2,%o3,%o4
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||||
srlx %g3,%o5,%g1
|
||||
mov %g3,%g2
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||||
or %o4,%g1,%o4
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brnz,pt %g4,.Loop0
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stx %o4,[%o0+0]
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|
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.L0: brz,pn %o2,.Lend
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nop
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.Loop: ldx [%o1-16],%g3
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add %o0,-32,%o0
|
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add %o2,-4,%o2
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sllx %g2,%o3,%o4
|
||||
srlx %g3,%o5,%g1
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||||
|
||||
ldx [%o1-24],%g2
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||||
sllx %g3,%o3,%g4
|
||||
or %o4,%g1,%o4
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||||
stx %o4,[%o0+24]
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||||
srlx %g2,%o5,%g1
|
||||
|
||||
ldx [%o1-32],%g3
|
||||
sllx %g2,%o3,%o4
|
||||
or %g4,%g1,%g4
|
||||
stx %g4,[%o0+16]
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||||
srlx %g3,%o5,%g1
|
||||
|
||||
ldx [%o1-40],%g2
|
||||
sllx %g3,%o3,%g4
|
||||
or %o4,%g1,%o4
|
||||
stx %o4,[%o0+8]
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||||
srlx %g2,%o5,%g1
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||||
|
||||
add %o1,-32,%o1
|
||||
or %g4,%g1,%g4
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||||
brnz,pt %o2,.Loop
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||||
stx %g4,[%o0+0]
|
||||
|
||||
.Lend: sllx %g2,%o3,%g2
|
||||
stx %g2,[%o0-8]
|
||||
retl
|
||||
ldx [%sp+80],%o0
|
||||
.LLfe1:
|
||||
.size __mpn_lshift,.LLfe1-__mpn_lshift
|
||||
85
sysdeps/sparc/sparc64/mul_1.s
Normal file
85
sysdeps/sparc/sparc64/mul_1.s
Normal file
@ -0,0 +1,85 @@
|
||||
! SPARC v9 __mpn_mul_1 -- Multiply a limb vector with a single limb and
|
||||
! store the product in a second limb vector.
|
||||
|
||||
! Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
||||
|
||||
! This file is part of the GNU MP Library.
|
||||
|
||||
! The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
! it under the terms of the GNU Library General Public License as published by
|
||||
! the Free Software Foundation; either version 2 of the License, or (at your
|
||||
! option) any later version.
|
||||
|
||||
! The GNU MP Library 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 Library General Public
|
||||
! License for more details.
|
||||
|
||||
! You should have received a copy of the GNU Library General Public License
|
||||
! along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
|
||||
! INPUT PARAMETERS
|
||||
! res_ptr o0
|
||||
! s1_ptr o1
|
||||
! size o2
|
||||
! s2_limb o3
|
||||
|
||||
.section ".text"
|
||||
.align 4
|
||||
.global __mpn_mul_1
|
||||
.type __mpn_mul_1,#function
|
||||
.proc 016
|
||||
__mpn_mul_1:
|
||||
!#PROLOGUE# 0
|
||||
save %sp,-160,%sp
|
||||
!#PROLOGUE# 1
|
||||
sub %g0,%i2,%o7
|
||||
sllx %o7,3,%g5
|
||||
sub %i1,%g5,%o3
|
||||
sub %i0,%g5,%o4
|
||||
mov 0,%o0 ! zero cy_limb
|
||||
|
||||
srl %i3,0,%o1 ! extract low 32 bits of s2_limb
|
||||
srlx %i3,32,%i3 ! extract high 32 bits of s2_limb
|
||||
mov 1,%o2
|
||||
sllx %o2,32,%o2 ! o2 = 0x100000000
|
||||
|
||||
! hi !
|
||||
! mid-1 !
|
||||
! mid-2 !
|
||||
! lo !
|
||||
.Loop:
|
||||
sllx %o7,3,%g1
|
||||
ldx [%o3+%g1],%g5
|
||||
srl %g5,0,%i0 ! zero hi bits
|
||||
srlx %g5,32,%g5
|
||||
mulx %o1,%i0,%i4 ! lo product
|
||||
mulx %i3,%i0,%i1 ! mid-1 product
|
||||
mulx %o1,%g5,%l2 ! mid-2 product
|
||||
mulx %i3,%g5,%i5 ! hi product
|
||||
srlx %i4,32,%i0 ! extract high 32 bits of lo product...
|
||||
add %i1,%i0,%i1 ! ...and add it to the mid-1 product
|
||||
addcc %i1,%l2,%i1 ! add mid products
|
||||
mov 0,%l0 ! we need the carry from that add...
|
||||
movcs %xcc,%o2,%l0 ! ...compute it and...
|
||||
add %i5,%l0,%i5 ! ...add to bit 32 of the hi product
|
||||
sllx %i1,32,%i0 ! align low bits of mid product
|
||||
srl %i4,0,%g5 ! zero high 32 bits of lo product
|
||||
add %i0,%g5,%i0 ! combine into low 64 bits of result
|
||||
srlx %i1,32,%i1 ! extract high bits of mid product...
|
||||
add %i5,%i1,%i1 ! ...and add them to the high result
|
||||
addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result
|
||||
mov 0,%g5
|
||||
movcs %xcc,1,%g5
|
||||
add %o7,1,%o7
|
||||
stx %i0,[%o4+%g1]
|
||||
brnz %o7,.Loop
|
||||
add %i1,%g5,%o0 ! compute new cy_limb
|
||||
|
||||
mov %o0,%i0
|
||||
ret
|
||||
restore
|
||||
.LLfe1:
|
||||
.size __mpn_mul_1,.LLfe1-__mpn_mul_1
|
||||
92
sysdeps/sparc/sparc64/rshift.s
Normal file
92
sysdeps/sparc/sparc64/rshift.s
Normal file
@ -0,0 +1,92 @@
|
||||
! SPARC v9 __mpn_rshift --
|
||||
|
||||
! Copyright (C) 1996 Free Software Foundation, Inc.
|
||||
|
||||
! This file is part of the GNU MP Library.
|
||||
|
||||
! The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
! it under the terms of the GNU Library General Public License as published by
|
||||
! the Free Software Foundation; either version 2 of the License, or (at your
|
||||
! option) any later version.
|
||||
|
||||
! The GNU MP Library 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 Library General Public
|
||||
! License for more details.
|
||||
|
||||
! You should have received a copy of the GNU Library General Public License
|
||||
! along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
|
||||
! INPUT PARAMETERS
|
||||
! res_ptr %o0
|
||||
! src_ptr %o1
|
||||
! size %o2
|
||||
! cnt %o3
|
||||
|
||||
.section ".text"
|
||||
.align 4
|
||||
.global __mpn_rshift
|
||||
.type __mpn_rshift,#function
|
||||
.proc 04
|
||||
__mpn_rshift:
|
||||
ldx [%o1],%g2 ! load first limb
|
||||
sub %g0,%o3,%o5 ! negate shift count
|
||||
add %o2,-1,%o2
|
||||
and %o2,4-1,%g4 ! number of limbs in first loop
|
||||
sllx %g2,%o5,%g1 ! compute function result
|
||||
brz,pn %g4,.L0 ! if multiple of 4 limbs, skip first loop
|
||||
stx %g1,[%sp+80]
|
||||
|
||||
sub %o2,%g4,%o2 ! adjust count for main loop
|
||||
|
||||
.Loop0: ldx [%o1+8],%g3
|
||||
add %o0,8,%o0
|
||||
add %o1,8,%o1
|
||||
add %g4,-1,%g4
|
||||
srlx %g2,%o3,%o4
|
||||
sllx %g3,%o5,%g1
|
||||
mov %g3,%g2
|
||||
or %o4,%g1,%o4
|
||||
brnz,pt %g4,.Loop0
|
||||
stx %o4,[%o0-8]
|
||||
|
||||
.L0: brz,pn %o2,.Lend
|
||||
nop
|
||||
|
||||
.Loop: ldx [%o1+8],%g3
|
||||
add %o0,32,%o0
|
||||
add %o2,-4,%o2
|
||||
srlx %g2,%o3,%o4
|
||||
sllx %g3,%o5,%g1
|
||||
|
||||
ldx [%o1+16],%g2
|
||||
srlx %g3,%o3,%g4
|
||||
or %o4,%g1,%o4
|
||||
stx %o4,[%o0-32]
|
||||
sllx %g2,%o5,%g1
|
||||
|
||||
ldx [%o1+24],%g3
|
||||
srlx %g2,%o3,%o4
|
||||
or %g4,%g1,%g4
|
||||
stx %g4,[%o0-24]
|
||||
sllx %g3,%o5,%g1
|
||||
|
||||
ldx [%o1+32],%g2
|
||||
srlx %g3,%o3,%g4
|
||||
or %o4,%g1,%o4
|
||||
stx %o4,[%o0-16]
|
||||
sllx %g2,%o5,%g1
|
||||
|
||||
add %o1,32,%o1
|
||||
or %g4,%g1,%g4
|
||||
brnz %o2,.Loop
|
||||
stx %g4,[%o0-8]
|
||||
|
||||
.Lend: srlx %g2,%o3,%g2
|
||||
stx %g2,[%o0-0]
|
||||
retl
|
||||
ldx [%sp+80],%o0
|
||||
.LLfe1:
|
||||
.size __mpn_rshift,.LLfe1-__mpn_rshift
|
||||
57
sysdeps/sparc/sparc64/sub_n.s
Normal file
57
sysdeps/sparc/sparc64/sub_n.s
Normal file
@ -0,0 +1,57 @@
|
||||
! SPARC v9 __mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
|
||||
! store difference in a third limb vector.
|
||||
|
||||
! Copyright (C) 1995, 1996 Free Software Foundation, Inc.
|
||||
|
||||
! This file is part of the GNU MP Library.
|
||||
|
||||
! The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
! it under the terms of the GNU Library General Public License as published by
|
||||
! the Free Software Foundation; either version 2 of the License, or (at your
|
||||
! option) any later version.
|
||||
|
||||
! The GNU MP Library 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 Library General Public
|
||||
! License for more details.
|
||||
|
||||
! You should have received a copy of the GNU Library General Public License
|
||||
! along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
|
||||
! INPUT PARAMETERS
|
||||
! res_ptr %o0
|
||||
! s1_ptr %o1
|
||||
! s2_ptr %o2
|
||||
! size %o3
|
||||
|
||||
.section ".text"
|
||||
.align 4
|
||||
.global __mpn_sub_n
|
||||
.type __mpn_sub_n,#function
|
||||
.proc 04
|
||||
__mpn_sub_n:
|
||||
sub %g0,%o3,%g3
|
||||
sllx %o3,3,%g1
|
||||
add %o1,%g1,%o1 ! make s1_ptr point at end
|
||||
add %o2,%g1,%o2 ! make s2_ptr point at end
|
||||
add %o0,%g1,%o0 ! make res_ptr point at end
|
||||
mov 0,%o4 ! clear carry variable
|
||||
sllx %g3,3,%o5 ! compute initial address index
|
||||
|
||||
.Loop: ldx [%o2+%o5],%g1 ! load s2 limb
|
||||
add %g3,1,%g3 ! increment loop count
|
||||
ldx [%o1+%o5],%g2 ! load s1 limb
|
||||
addcc %g1,%o4,%g1 ! add s2 limb and carry variable
|
||||
movcc %xcc,0,%o4 ! if carry-out, o4 was 1; clear it
|
||||
subcc %g1,%g2,%g1 ! subtract s1 limb from sum
|
||||
stx %g1,[%o0+%o5] ! store result
|
||||
add %o5,8,%o5 ! increment address index
|
||||
brnz,pt %g3,.Loop
|
||||
movcs %xcc,1,%o4 ! if s1 subtract gave carry, record it
|
||||
|
||||
retl
|
||||
mov %o4,%o0
|
||||
.LLfe1:
|
||||
.size __mpn_sub_n,.LLfe1-__mpn_sub_n
|
||||
88
sysdeps/sparc/sparc64/submul_1.s
Normal file
88
sysdeps/sparc/sparc64/submul_1.s
Normal file
@ -0,0 +1,88 @@
|
||||
! SPARC v9 __mpn_submul_1 -- Multiply a limb vector with a single limb and
|
||||
! subtract the product from a second limb vector.
|
||||
|
||||
! Copyright (C) 1996 Free Software Foundation, Inc.
|
||||
|
||||
! This file is part of the GNU MP Library.
|
||||
|
||||
! The GNU MP Library is free software; you can redistribute it and/or modify
|
||||
! it under the terms of the GNU Library General Public License as published by
|
||||
! the Free Software Foundation; either version 2 of the License, or (at your
|
||||
! option) any later version.
|
||||
|
||||
! The GNU MP Library 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 Library General Public
|
||||
! License for more details.
|
||||
|
||||
! You should have received a copy of the GNU Library General Public License
|
||||
! along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
||||
! the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
|
||||
|
||||
! INPUT PARAMETERS
|
||||
! res_ptr o0
|
||||
! s1_ptr o1
|
||||
! size o2
|
||||
! s2_limb o3
|
||||
|
||||
.section ".text"
|
||||
.align 4
|
||||
.global __mpn_submul_1
|
||||
.type __mpn_submul_1,#function
|
||||
.proc 016
|
||||
__mpn_submul_1:
|
||||
!#PROLOGUE# 0
|
||||
save %sp,-160,%sp
|
||||
!#PROLOGUE# 1
|
||||
sub %g0,%i2,%o7
|
||||
sllx %o7,3,%g5
|
||||
sub %i1,%g5,%o3
|
||||
sub %i0,%g5,%o4
|
||||
mov 0,%o0 ! zero cy_limb
|
||||
|
||||
srl %i3,0,%o1 ! extract low 32 bits of s2_limb
|
||||
srlx %i3,32,%i3 ! extract high 32 bits of s2_limb
|
||||
mov 1,%o2
|
||||
sllx %o2,32,%o2 ! o2 = 0x100000000
|
||||
|
||||
! hi !
|
||||
! mid-1 !
|
||||
! mid-2 !
|
||||
! lo !
|
||||
.Loop:
|
||||
sllx %o7,3,%g1
|
||||
ldx [%o3+%g1],%g5
|
||||
srl %g5,0,%i0 ! zero hi bits
|
||||
srlx %g5,32,%g5
|
||||
mulx %o1,%i0,%i4 ! lo product
|
||||
mulx %i3,%i0,%i1 ! mid-1 product
|
||||
mulx %o1,%g5,%l2 ! mid-2 product
|
||||
mulx %i3,%g5,%i5 ! hi product
|
||||
srlx %i4,32,%i0 ! extract high 32 bits of lo product...
|
||||
add %i1,%i0,%i1 ! ...and add it to the mid-1 product
|
||||
addcc %i1,%l2,%i1 ! add mid products
|
||||
mov 0,%l0 ! we need the carry from that add...
|
||||
movcs %xcc,%o2,%l0 ! ...compute it and...
|
||||
add %i5,%l0,%i5 ! ...add to bit 32 of the hi product
|
||||
sllx %i1,32,%i0 ! align low bits of mid product
|
||||
srl %i4,0,%g5 ! zero high 32 bits of lo product
|
||||
add %i0,%g5,%i0 ! combine into low 64 bits of result
|
||||
srlx %i1,32,%i1 ! extract high bits of mid product...
|
||||
add %i5,%i1,%i1 ! ...and add them to the high result
|
||||
addcc %i0,%o0,%i0 ! add cy_limb to low 64 bits of result
|
||||
mov 0,%g5
|
||||
movcs %xcc,1,%g5
|
||||
add %o7,1,%o7
|
||||
ldx [%o4+%g1],%l1
|
||||
subcc %l1,%i0,%i0
|
||||
movcs %xcc,1,%g5
|
||||
stx %i0,[%o4+%g1]
|
||||
brnz %o7,.Loop
|
||||
add %i1,%g5,%o0 ! compute new cy_limb
|
||||
|
||||
mov %o0,%i0
|
||||
ret
|
||||
restore
|
||||
.LLfe1:
|
||||
.size __mpn_submul_1,.LLfe1-__mpn_submul_1
|
||||
Reference in New Issue
Block a user