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Annotation of OpenXM_contrib/gmp/mpn/sparc64/submul_1.asm, Revision 1.1.1.2

1.1.1.2 ! ohara       1: dnl  SPARC v9 64-bit mpn_submul_1 -- Multiply a limb vector with a limb and
1.1       maekawa     2: dnl  subtract the result from a second limb vector.
                      3:
1.1.1.2 ! ohara       4: dnl  Copyright 2001, 2002 Free Software Foundation, Inc.
1.1       maekawa     5:
                      6: dnl  This file is part of the GNU MP Library.
                      7:
                      8: dnl  The GNU MP Library is free software; you can redistribute it and/or modify
                      9: dnl  it under the terms of the GNU Lesser General Public License as published
                     10: dnl  by the Free Software Foundation; either version 2.1 of the License, or (at
                     11: dnl  your option) any later version.
                     12:
                     13: dnl  The GNU MP Library is distributed in the hope that it will be useful, but
                     14: dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
                     15: dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
                     16: dnl  License for more details.
                     17:
                     18: dnl  You should have received a copy of the GNU Lesser General Public License
                     19: dnl  along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     20: dnl  the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     21: dnl  MA 02111-1307, USA.
                     22:
                     23: include(`../config.m4')
                     24:
                     25: C INPUT PARAMETERS
1.1.1.2 ! ohara      26: C rp   i0
        !            27: C up   i1
        !            28: C n    i2
        !            29: C v    i3
1.1       maekawa    30:
                     31: ASM_START()
1.1.1.2 ! ohara      32:        REGISTER(%g2,#scratch)
1.1       maekawa    33:
                     34: PROLOGUE(mpn_submul_1)
1.1.1.2 ! ohara      35:        save    %sp,-176,%sp
1.1       maekawa    36:
1.1.1.2 ! ohara      37:        sllx    %i2, 3, %g2
        !            38:        or      %g0, %i1, %o1
        !            39:        add     %g2, 15, %o0
        !            40:        or      %g0, %i2, %o2
        !            41:        and     %o0, -16, %o0
        !            42:        sub     %sp, %o0, %sp
        !            43:        add     %sp, 2223, %o0
        !            44:        or      %g0, %o0, %l0
        !            45:        call    mpn_mul_1
        !            46:        or      %g0, %i3, %o3
        !            47:        or      %g0, %o0, %l1           C preserve carry value from mpn_mul_1
        !            48:        or      %g0, %i0, %o0
        !            49:        or      %g0, %i0, %o1
        !            50:        or      %g0, %l0, %o2
        !            51:        call    mpn_sub_n
        !            52:        or      %g0, %i2, %o3
1.1       maekawa    53:        ret
1.1.1.2 ! ohara      54:        restore %l1, %o0, %o0           C sum carry values
1.1       maekawa    55: EPILOGUE(mpn_submul_1)