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dnl PowerPC-64 mpn_mul_1 -- Multiply a limb vector with a limb and add
dnl the result to a second limb vector.
dnl Copyright 1999, 2000, 2001, 2003, 2005 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 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
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
dnl License for more details.
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/.
include(`../config.m4')
C cycles/limb
C POWER3/PPC630: ?
C POWER4/PPC970: 10
C INPUT PARAMETERS
C rp r3
C up r4
C n r5
C v r6,r7 or r7,r8
ASM_START()
PROLOGUE(mpn_mul_1)
ifdef(`BROKEN_LONGLONG_PARAM',
` rldimi r8, r7, 32,0 C assemble vlimb from separate 32-bit arguments
mr r6, r8
',`
rldimi r7, r6, 32,0 C assemble vlimb from separate 32-bit arguments
mr r6, r7
')
li r7, 0 C cy_limb = 0
mtctr r5
addic r0, r0, 0
addi r3, r3, -8
addi r4, r4, -8
L(oop): ldu r0, 8(r4)
mulld r9, r0, r6
adde r12, r9, r7 C add old high limb and new low limb
srdi r5, r9, 32
srdi r11, r7, 32
adde r5, r5, r11 C add high limb parts, set cy
mulhdu r7, r0, r6
stdu r12, 8(r3)
bdnz L(oop)
addze r4, r7
srdi r3, r4, 32
blr
EPILOGUE()
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