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Annotation of OpenXM_contrib/gmp/mpn/sparc32/v8/mul_1.asm, Revision 1.1

1.1     ! maekawa     1: dnl  SPARC v8 mpn_mul_1 -- Multiply a limb vector with a single limb and
        !             2: dnl  store the product in a second limb vector.
        !             3:
        !             4: dnl  Copyright (C) 1992, 1994, 1995, 2000 Free Software Foundation, Inc.
        !             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:
        !            24: include(`../config.m4')
        !            25:
        !            26: C INPUT PARAMETERS
        !            27: C res_ptr      o0
        !            28: C s1_ptr       o1
        !            29: C size         o2
        !            30: C s2_limb      o3
        !            31:
        !            32: ASM_START()
        !            33: PROLOGUE(mpn_mul_1)
        !            34:        sll     %o2,4,%g1
        !            35:        and     %g1,(4-1)<<4,%g1
        !            36: ifdef(`PIC',
        !            37: `      mov     %o7,%g4         C Save return address register
        !            38: 0:     call    1f
        !            39:        add     %o7,L(1)-0b,%g3
        !            40: 1:     mov     %g4,%o7         C Restore return address register
        !            41: ',
        !            42: `      sethi   %hi(L(1)),%g3
        !            43:        or      %g3,%lo(L(1)),%g3
        !            44: ')
        !            45:        jmp     %g3+%g1
        !            46:        ld      [%o1+0],%o4     C 1
        !            47: L(1):
        !            48: L(L00):        add     %o0,-4,%o0
        !            49:        add     %o1,-4,%o1
        !            50:        b       L(loop00)       C 4, 8, 12, ...
        !            51:        orcc    %g0,%g0,%g2
        !            52: L(L01):        b       L(loop01)       C 1, 5, 9, ...
        !            53:        orcc    %g0,%g0,%g2
        !            54:        nop
        !            55:        nop
        !            56: L(L10):        add     %o0,-12,%o0     C 2, 6, 10, ...
        !            57:        add     %o1,4,%o1
        !            58:        b       L(loop10)
        !            59:        orcc    %g0,%g0,%g2
        !            60:        nop
        !            61: L(L11):        add     %o0,-8,%o0      C 3, 7, 11, ...
        !            62:        add     %o1,-8,%o1
        !            63:        b       L(loop11)
        !            64:        orcc    %g0,%g0,%g2
        !            65:
        !            66: L(loop):
        !            67:        addcc   %g3,%g2,%g3     C 1
        !            68:        ld      [%o1+4],%o4     C 2
        !            69:        st      %g3,[%o0+0]     C 1
        !            70:        rd      %y,%g2          C 1
        !            71: L(loop00):
        !            72:        umul    %o4,%o3,%g3     C 2
        !            73:        addxcc  %g3,%g2,%g3     C 2
        !            74:        ld      [%o1+8],%o4     C 3
        !            75:        st      %g3,[%o0+4]     C 2
        !            76:        rd      %y,%g2          C 2
        !            77: L(loop11):
        !            78:        umul    %o4,%o3,%g3     C 3
        !            79:        addxcc  %g3,%g2,%g3     C 3
        !            80:        ld      [%o1+12],%o4    C 4
        !            81:        add     %o1,16,%o1
        !            82:        st      %g3,[%o0+8]     C 3
        !            83:        rd      %y,%g2          C 3
        !            84: L(loop10):
        !            85:        umul    %o4,%o3,%g3     C 4
        !            86:        addxcc  %g3,%g2,%g3     C 4
        !            87:        ld      [%o1+0],%o4     C 1
        !            88:        st      %g3,[%o0+12]    C 4
        !            89:        add     %o0,16,%o0
        !            90:        rd      %y,%g2          C 4
        !            91:        addx    %g0,%g2,%g2
        !            92: L(loop01):
        !            93:        addcc   %o2,-4,%o2
        !            94:        bg      L(loop)
        !            95:        umul    %o4,%o3,%g3     C 1
        !            96:
        !            97:        addcc   %g3,%g2,%g3     C 4
        !            98:        st      %g3,[%o0+0]     C 4
        !            99:        rd      %y,%g2          C 4
        !           100:
        !           101:        retl
        !           102:        addx    %g0,%g2,%o0
        !           103: EPILOGUE(mpn_mul_1)