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Annotation of OpenXM/src/kan96xx/gmp-2.0.2-ssh-2/mpn/sparc32/v8/supersparc/udiv.S, Revision 1.1

1.1     ! takayama    1: ! SuperSPARC __udiv_qrnnd division support, used from longlong.h.
        !             2: ! This is for SuperSPARC only, to compensate for its semi-functional
        !             3: ! udiv instruction.
        !             4:
        !             5: ! Copyright (C) 1993, 1994, 1996 Free Software Foundation, Inc.
        !             6:
        !             7: ! This file is part of the GNU MP Library.
        !             8:
        !             9: ! The GNU MP Library is free software; you can redistribute it and/or modify
        !            10: ! it under the terms of the GNU Library General Public License as published by
        !            11: ! the Free Software Foundation; either version 2 of the License, or (at your
        !            12: ! option) any later version.
        !            13:
        !            14: ! The GNU MP Library is distributed in the hope that it will be useful, but
        !            15: ! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
        !            16: ! or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
        !            17: ! License for more details.
        !            18:
        !            19: ! You should have received a copy of the GNU Library General Public License
        !            20: ! along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
        !            21: ! the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
        !            22: ! MA 02111-1307, USA.
        !            23:
        !            24:
        !            25: ! INPUT PARAMETERS
        !            26: ! rem_ptr      i0
        !            27: ! n1           i1
        !            28: ! n0           i2
        !            29: ! d            i3
        !            30:
        !            31: #include "sysdep.h"
        !            32: #undef ret     /* Kludge for glibc */
        !            33:
        !            34:        .text
        !            35:        .align  8
        !            36: LC0:   .double 0r4294967296
        !            37: LC1:   .double 0r2147483648
        !            38:
        !            39:        .align  4
        !            40:        .global C_SYMBOL_NAME(__udiv_qrnnd)
        !            41: C_SYMBOL_NAME(__udiv_qrnnd):
        !            42:        !#PROLOGUE# 0
        !            43:        save    %sp,-104,%sp
        !            44:        !#PROLOGUE# 1
        !            45:        st      %i1,[%fp-8]
        !            46:        ld      [%fp-8],%f10
        !            47:        sethi   %hi(LC0),%o7
        !            48:        fitod   %f10,%f4
        !            49:        ldd     [%o7+%lo(LC0)],%f8
        !            50:        cmp     %i1,0
        !            51:        bge     L248
        !            52:        mov     %i0,%i5
        !            53:        faddd   %f4,%f8,%f4
        !            54: L248:
        !            55:        st      %i2,[%fp-8]
        !            56:        ld      [%fp-8],%f10
        !            57:        fmuld   %f4,%f8,%f6
        !            58:        cmp     %i2,0
        !            59:        bge     L249
        !            60:        fitod   %f10,%f2
        !            61:        faddd   %f2,%f8,%f2
        !            62: L249:
        !            63:        st      %i3,[%fp-8]
        !            64:        faddd   %f6,%f2,%f2
        !            65:        ld      [%fp-8],%f10
        !            66:        cmp     %i3,0
        !            67:        bge     L250
        !            68:        fitod   %f10,%f4
        !            69:        faddd   %f4,%f8,%f4
        !            70: L250:
        !            71:        fdivd   %f2,%f4,%f2
        !            72:        sethi   %hi(LC1),%o7
        !            73:        ldd     [%o7+%lo(LC1)],%f4
        !            74:        fcmped  %f2,%f4
        !            75:        nop
        !            76:        fbge,a  L251
        !            77:        fsubd   %f2,%f4,%f2
        !            78:        fdtoi   %f2,%f2
        !            79:        st      %f2,[%fp-8]
        !            80:        b       L252
        !            81:        ld      [%fp-8],%i4
        !            82: L251:
        !            83:        fdtoi   %f2,%f2
        !            84:        st      %f2,[%fp-8]
        !            85:        ld      [%fp-8],%i4
        !            86:        sethi   %hi(-2147483648),%g2
        !            87:        xor     %i4,%g2,%i4
        !            88: L252:
        !            89:        umul    %i3,%i4,%g3
        !            90:        rd      %y,%i0
        !            91:        subcc   %i2,%g3,%o7
        !            92:        subxcc  %i1,%i0,%g0
        !            93:        be      L253
        !            94:        cmp     %o7,%i3
        !            95:
        !            96:        add     %i4,-1,%i0
        !            97:        add     %o7,%i3,%o7
        !            98:        st      %o7,[%i5]
        !            99:        ret
        !           100:        restore
        !           101: L253:
        !           102:        blu     L246
        !           103:        mov     %i4,%i0
        !           104:        add     %i4,1,%i0
        !           105:        sub     %o7,%i3,%o7
        !           106: L246:
        !           107:        st      %o7,[%i5]
        !           108:        ret
        !           109:        restore