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dnl SPARC 64-bit mpn_addmul_1 -- Multiply a limb vector with a limb and
dnl add the result to a second limb vector.
dnl Copyright (C) 1998, 2000 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU Library General Public License as published
dnl by the Free Software Foundation; either version 2 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
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
dnl License for more details.
dnl You should have received a copy of the GNU Library General Public License
dnl along with the GNU MP Library; see the file COPYING.LIB. If not, write to
dnl the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
dnl MA 02111-1307, USA.
include(`../config.m4')
C INPUT PARAMETERS
C res_ptr i0
C s1_ptr i1
C size i2
C s2_limb i3
ASM_START()
.register %g2,#scratch
.register %g3,#scratch
PROLOGUE(mpn_addmul_1)
save %sp,-256,%sp
C We store 0.0 in f10 and keep it invariant accross thw two
C function calls below. Note that this is not ABI conformant,
C but since the functions are local, that's acceptable.
ifdef(`PIC',
`L(pc): rd %pc,%o7
ld [%o7+L(noll)-L(pc)],%f10',
` sethi %hh(L(noll)),%g2
sethi %lm(L(noll)),%g1
or %g2,%hm(L(noll)),%g2
or %g1,%lo(L(noll)),%g1
sllx %g2,32,%g2
ld [%g1+%g2],%f10')
C First multiply-add with low 32 bits of s2_limb
mov %i0,%o0
mov %i1,%o1
add %i2,%i2,%o2
call addmull
srl %i3,0,%o3
mov %o0,%l0 C keep carry-out from accmull
C Now multiply-add with high 32 bits of s2_limb, unless it is zero.
srlx %i3,32,%o3
brz,a,pn %o3,L(small)
mov %o0,%i0
mov %i1,%o1
add %i2,%i2,%o2
call addmulu
add %i0,4,%o0
add %l0,%o0,%i0
L(small):
ret
restore %g0,%g0,%g0
EPILOGUE(mpn_addmul_1)
TEXT
ALIGN(4)
L(noll):
.word 0
define(`LO',`(+4)')
define(`HI',`(-4)')
define(`DLO',`(+4)')
define(`DHI',`(-4)')
define(`LOWPART')
define(`E',`L(l.$1)')
include(`addmul_1h.asm')
define(`DLO',`(-4)')
define(`DHI',`(+4)')
undefine(`LOWPART')
define(`E',`L(u.$1)')
include(`addmul_1h.asm')
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