dnl PowerPC-64 mpn_and_n, mpn_andn_n, mpn_nand_n, mpn_ior_n, mpn_iorn_n,
dnl mpn_nior_n, mpn_xor_n, mpn_xnor_n -- mpn bitwise logical operations.
dnl Copyright 2003-2005 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of either:
dnl
dnl * the GNU Lesser General Public License as published by the Free
dnl Software Foundation; either version 3 of the License, or (at your
dnl option) any later version.
dnl
dnl or
dnl
dnl * the GNU General Public License as published by the Free Software
dnl Foundation; either version 2 of the License, or (at your option) any
dnl later version.
dnl
dnl or both in parallel, as here.
dnl
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 General Public License
dnl for more details.
dnl
dnl You should have received copies of the GNU General Public License and the
dnl GNU Lesser General Public License along with the GNU MP Library. If not,
dnl see https://www.gnu.org/licenses/.
include(`../config.m4')
C cycles/limb
C POWER3/PPC630 1.75
C POWER4/PPC970 2.10
C POWER5 ?
C POWER6 ?
C POWER7 1.75
C n POWER3/PPC630 POWER4/PPC970
C 1 15.00 15.33
C 2 7.50 7.99
C 3 5.33 6.00
C 4 4.50 4.74
C 5 4.20 4.39
C 6 3.50 3.99
C 7 3.14 3.64
C 8 3.00 3.36
C 9 3.00 3.36
C 10 2.70 3.25
C 11 2.63 3.11
C 12 2.58 3.00
C 13 2.61 3.02
C 14 2.42 2.82
C 15 2.40 2.79
C 50 2.08 2.67
C 100 1.85 2.31
C 200 1.80 2.18
C 400 1.77 2.14
C 1000 1.76 2.10#
C 2000 1.75# 2.13
C 4000 2.30 2.57
C 8000 2.62 2.58
C 16000 2.52 4.25
C 32000 2.49 16.25
C 64000 2.66 18.76
ifdef(`OPERATION_and_n',
` define(`func',`mpn_and_n')
define(`logop', `and')')
ifdef(`OPERATION_andn_n',
` define(`func',`mpn_andn_n')
define(`logop', `andc')')
ifdef(`OPERATION_nand_n',
` define(`func',`mpn_nand_n')
define(`logop', `nand')')
ifdef(`OPERATION_ior_n',
` define(`func',`mpn_ior_n')
define(`logop', `or')')
ifdef(`OPERATION_iorn_n',
` define(`func',`mpn_iorn_n')
define(`logop', `orc')')
ifdef(`OPERATION_nior_n',
` define(`func',`mpn_nior_n')
define(`logop', `nor')')
ifdef(`OPERATION_xor_n',
` define(`func',`mpn_xor_n')
define(`logop', `xor')')
ifdef(`OPERATION_xnor_n',
` define(`func',`mpn_xnor_n')
define(`logop', `eqv')')
C INPUT PARAMETERS
C rp r3
C up r4
C vp r5
C n r6
MULFUNC_PROLOGUE(mpn_and_n mpn_andn_n mpn_nand_n mpn_ior_n mpn_iorn_n mpn_nior_n mpn_xor_n mpn_xnor_n)
ASM_START()
PROLOGUE(func)
ld r8, 0(r4) C read lowest u limb
ld r9, 0(r5) C read lowest v limb
addi r6, r6, 3 C compute branch count (1)
rldic. r0, r6, 3, 59 C r0 = (n-1 & 3) << 3; cr0 = (n == 4(t+1))?
cmpldi cr6, r0, 16 C cr6 = (n cmp 4t + 3)
ifdef(`HAVE_ABI_mode32',
` rldicl r6, r6, 62,34', C ...branch count
` rldicl r6, r6, 62, 2') C ...branch count
mtctr r6
ld r6, 0(r4) C read lowest u limb (again)
ld r7, 0(r5) C read lowest v limb (again)
add r5, r5, r0 C offset vp
add r4, r4, r0 C offset up
add r3, r3, r0 C offset rp
beq cr0, L(L01)
blt cr6, L(L10)
beq cr6, L(L11)
b L(L00)
L(oop): ld r8, -24(r4)
ld r9, -24(r5)
logop r10, r6, r7
std r10, -32(r3)
L(L00): ld r6, -16(r4)
ld r7, -16(r5)
logop r10, r8, r9
std r10, -24(r3)
L(L11): ld r8, -8(r4)
ld r9, -8(r5)
logop r10, r6, r7
std r10, -16(r3)
L(L10): ld r6, 0(r4)
ld r7, 0(r5)
logop r10, r8, r9
std r10, -8(r3)
L(L01): addi r5, r5, 32
addi r4, r4, 32
addi r3, r3, 32
bdnz L(oop)
logop r10, r6, r7
std r10, -32(r3)
blr
EPILOGUE()