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Annotation of OpenXM/src/kan96xx/gmp-2.0.2-ssh-2/mpn/i960/mul_1.s, Revision 1.1.1.1

1.1       takayama    1: # I960 __mpn_mul_1 -- Multiply a limb vector with a limb and store
                      2: # the result in a second limb vector.
                      3:
                      4: # Copyright (C) 1995 Free Software Foundation, Inc.
                      5:
                      6: # This file is part of the GNU MP Library.
                      7:
                      8: # The GNU MP Library is free software; you can redistribute it and/or modify
                      9: # it under the terms of the GNU Library General Public License as published by
                     10: # the Free Software Foundation; either version 2 of the License, or (at your
                     11: # option) any later version.
                     12:
                     13: # The GNU MP Library is distributed in the hope that it will be useful, but
                     14: # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     15: # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
                     16: # License for more details.
                     17:
                     18: # You should have received a copy of the GNU Library General Public License
                     19: # along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     20: # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     21: # MA 02111-1307, USA.
                     22:
                     23: .text
                     24:        .align  4
                     25:        .globl  ___mpn_mul_1
                     26: ___mpn_mul_1:
                     27:        subo    g2,0,g2
                     28:        shlo    2,g2,g4
                     29:        subo    g4,g1,g1
                     30:        subo    g4,g0,g13
                     31:        mov     0,g0
                     32:
                     33:        cmpo    1,0             # clear C bit on AC.cc
                     34:
                     35: Loop:  ld      (g1)[g2*4],g5
                     36:        emul    g3,g5,g6
                     37:
                     38:        addc    g0,g6,g6        # relies on that C bit is clear
                     39:        st      g6,(g13)[g2*4]
                     40:        addc    0,g7,g0
                     41:
                     42:        addo    g2,1,g2
                     43:        cmpobne 0,g2,Loop       # when branch is taken, clears C bit
                     44:
                     45:        ret

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