1dnl HP-PA mpn_add_n -- Add two limb vectors of the same length > 0 and store 2dnl sum in a third limb vector. 3 4dnl Copyright 1992, 1994, 2000-2002 Free Software Foundation, Inc. 5 6dnl This file is part of the GNU MP Library. 7dnl 8dnl The GNU MP Library is free software; you can redistribute it and/or modify 9dnl it under the terms of either: 10dnl 11dnl * the GNU Lesser General Public License as published by the Free 12dnl Software Foundation; either version 3 of the License, or (at your 13dnl option) any later version. 14dnl 15dnl or 16dnl 17dnl * the GNU General Public License as published by the Free Software 18dnl Foundation; either version 2 of the License, or (at your option) any 19dnl later version. 20dnl 21dnl or both in parallel, as here. 22dnl 23dnl The GNU MP Library is distributed in the hope that it will be useful, but 24dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 25dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 26dnl for more details. 27dnl 28dnl You should have received copies of the GNU General Public License and the 29dnl GNU Lesser General Public License along with the GNU MP Library. If not, 30dnl see https://www.gnu.org/licenses/. 31 32include(`../config.m4') 33 34C INPUT PARAMETERS 35C res_ptr gr26 36C s1_ptr gr25 37C s2_ptr gr24 38C size gr23 39 40C One might want to unroll this as for other processors, but it turns out that 41C the data cache contention after a store makes such unrolling useless. We 42C can't come under 5 cycles/limb anyway. 43 44ASM_START() 45PROLOGUE(mpn_add_n) 46 ldws,ma 4(0,%r25),%r20 47 ldws,ma 4(0,%r24),%r19 48 49 addib,= -1,%r23,L(end) C check for (SIZE == 1) 50 add %r20,%r19,%r28 C add first limbs ignoring cy 51 52LDEF(loop) 53 ldws,ma 4(0,%r25),%r20 54 ldws,ma 4(0,%r24),%r19 55 stws,ma %r28,4(0,%r26) 56 addib,<> -1,%r23,L(loop) 57 addc %r20,%r19,%r28 58 59LDEF(end) 60 stws %r28,0(0,%r26) 61 bv 0(%r2) 62 addc %r0,%r0,%r28 63EPILOGUE() 64