diff options
Diffstat (limited to 'rts/gmp/mpn/alpha/add_n.asm')
| -rw-r--r-- | rts/gmp/mpn/alpha/add_n.asm | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/rts/gmp/mpn/alpha/add_n.asm b/rts/gmp/mpn/alpha/add_n.asm new file mode 100644 index 0000000000..08d6a9f7b8 --- /dev/null +++ b/rts/gmp/mpn/alpha/add_n.asm @@ -0,0 +1,114 @@ +dnl Alpha mpn_add_n -- Add two limb vectors of the same length > 0 and +dnl store sum in a third limb vector. + +dnl Copyright (C) 1995, 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 Lesser General Public License as published by +dnl the Free Software Foundation; either version 2.1 of the License, or (at your +dnl 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; 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') + +dnl INPUT PARAMETERS +dnl res_ptr r16 +dnl s1_ptr r17 +dnl s2_ptr r18 +dnl size r19 + +ASM_START() +PROLOGUE(mpn_add_n) + ldq r3,0(r17) + ldq r4,0(r18) + + subq r19,1,r19 + and r19,4-1,r2 C number of limbs in first loop + bis r31,r31,r0 + beq r2,$L0 C if multiple of 4 limbs, skip first loop + + subq r19,r2,r19 + +$Loop0: subq r2,1,r2 + ldq r5,8(r17) + addq r4,r0,r4 + ldq r6,8(r18) + cmpult r4,r0,r1 + addq r3,r4,r4 + cmpult r4,r3,r0 + stq r4,0(r16) + bis r0,r1,r0 + + addq r17,8,r17 + addq r18,8,r18 + bis r5,r5,r3 + bis r6,r6,r4 + addq r16,8,r16 + bne r2,$Loop0 + +$L0: beq r19,$Lend + + ALIGN(8) +$Loop: subq r19,4,r19 + + ldq r5,8(r17) + addq r4,r0,r4 + ldq r6,8(r18) + cmpult r4,r0,r1 + addq r3,r4,r4 + cmpult r4,r3,r0 + stq r4,0(r16) + bis r0,r1,r0 + + ldq r3,16(r17) + addq r6,r0,r6 + ldq r4,16(r18) + cmpult r6,r0,r1 + addq r5,r6,r6 + cmpult r6,r5,r0 + stq r6,8(r16) + bis r0,r1,r0 + + ldq r5,24(r17) + addq r4,r0,r4 + ldq r6,24(r18) + cmpult r4,r0,r1 + addq r3,r4,r4 + cmpult r4,r3,r0 + stq r4,16(r16) + bis r0,r1,r0 + + ldq r3,32(r17) + addq r6,r0,r6 + ldq r4,32(r18) + cmpult r6,r0,r1 + addq r5,r6,r6 + cmpult r6,r5,r0 + stq r6,24(r16) + bis r0,r1,r0 + + addq r17,32,r17 + addq r18,32,r18 + addq r16,32,r16 + bne r19,$Loop + +$Lend: addq r4,r0,r4 + cmpult r4,r0,r1 + addq r3,r4,r4 + cmpult r4,r3,r0 + stq r4,0(r16) + bis r0,r1,r0 + ret r31,(r26),1 +EPILOGUE(mpn_add_n) +ASM_END() |