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Diffstat (limited to 'mpn/ns32k/submul_1.s')
| -rw-r--r-- | mpn/ns32k/submul_1.s | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/mpn/ns32k/submul_1.s b/mpn/ns32k/submul_1.s new file mode 100644 index 000000000..509309532 --- /dev/null +++ b/mpn/ns32k/submul_1.s @@ -0,0 +1,48 @@ +# ns32000 __mpn_submul_1 -- Multiply a limb vector with a limb and subtract +# the result from a second limb vector. + +# Copyright (C) 1992, 1994 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 Library General Public License as published by +# the Free Software Foundation; either version 2 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 Library General Public +# License for more details. + +# You should have received a copy of the GNU Library 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. + + + .align 1 +.globl ___mpn_submul_1 +___mpn_submul_1: + save [r3,r4,r5,r6,r7] + negd 24(sp),r4 + movd r4,r0 + lshd 2,r0 + movd 20(sp),r5 + subd r0,r5 # r5 -> to end of S1 + movd 16(sp),r6 + subd r0,r6 # r6 -> to end of RES + subd r0,r0 # r0 = 0, cy = 0 + movd 28(sp),r7 # r7 = s2_limb + +Loop: movd r5[r4:d],r2 + meid r7,r2 # r2 = low_prod, r3 = high_prod + addcd r0,r2 # r2 = low_prod + cy_limb + movd r3,r0 # r0 = new cy_limb + addcd 0,r0 + subd r2,r6[r4:d] + acbd 1,r4,Loop + + addcd 0,r0 + restore [r7,r6,r5,r4,r3] + ret 0 |