diff options
Diffstat (limited to 'rts/gmp/mpn/i960/addmul_1.s')
| -rw-r--r-- | rts/gmp/mpn/i960/addmul_1.s | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/rts/gmp/mpn/i960/addmul_1.s b/rts/gmp/mpn/i960/addmul_1.s new file mode 100644 index 0000000000..7df1418356 --- /dev/null +++ b/rts/gmp/mpn/i960/addmul_1.s @@ -0,0 +1,48 @@ +# I960 __gmpn_addmul_1 -- Multiply a limb vector with a limb and add +# the result to a second limb vector. + +# Copyright (C) 1995, 2000 Free Software Foundation, Inc. + +# This file is part of the GNU MP Library. + +# The GNU MP Library is free software; you can redistribute it and/or modify +# it under the terms of the GNU Lesser General Public License as published by +# the Free Software Foundation; either version 2.1 of the License, or (at your +# option) any later version. + +# The GNU MP Library is distributed in the hope that it will be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +# License for more details. + +# You should have received a copy of the GNU Lesser General Public License +# along with the GNU MP Library; see the file COPYING.LIB. If not, write to +# the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, +# MA 02111-1307, USA. + +.text + .align 4 + .globl ___gmpn_mul_1 +___gmpn_mul_1: + subo g2,0,g2 + shlo 2,g2,g4 + subo g4,g1,g1 + subo g4,g0,g13 + mov 0,g0 + + cmpo 1,0 # clear C bit on AC.cc + +Loop: ld (g1)[g2*4],g5 + emul g3,g5,g6 + ld (g13)[g2*4],g5 + + addc g0,g6,g6 # relies on that C bit is clear + addc 0,g7,g7 + addc g5,g6,g6 # relies on that C bit is clear + st g6,(g13)[g2*4] + addc 0,g7,g0 + + addo g2,1,g2 + cmpobne 0,g2,Loop # when branch is taken, clears C bit + + ret |