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Annotation of OpenXM_contrib/gmp/mpn/hppa/hppa1_1/udiv_qrnnd.S, Revision 1.1.1.1

1.1       maekawa     1: ; HP-PA  __udiv_qrnnd division support, used from longlong.h.
                      2: ; This version runs fast on PA 7000 and later.
                      3:
                      4: ; Copyright (C) 1993, 1994, 2000 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 Lesser General Public License as published by
                     10: ; the Free Software Foundation; either version 2.1 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 Lesser General Public
                     16: ; License for more details.
                     17:
                     18: ; You should have received a copy of the GNU Lesser 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:
                     24: ; INPUT PARAMETERS
                     25: ; rem_ptr      gr26
                     26: ; n1           gr25
                     27: ; n0           gr24
                     28: ; d            gr23
                     29:
                     30:        .code
                     31: L$0000 .word           0x43f00000              ; 2^64
                     32:        .word           0x0
                     33:        .export         __gmpn_udiv_qrnnd
                     34: __gmpn_udiv_qrnnd
                     35:        .proc
                     36:        .callinfo       frame=64,no_calls
                     37:        .entry
                     38:        ldo             64(%r30),%r30
                     39:
                     40:        stws            %r25,-16(0,%r30)        ; n_hi
                     41:        stws            %r24,-12(0,%r30)        ; n_lo
                     42: #ifdef PIC
                     43:        addil           LT%L$0000,%r19
                     44:        ldo             RT%L$0000(%r1),%r19
                     45: #else
                     46:        ldil            L%L$0000,%r19
                     47:        ldo             R%L$0000(%r19),%r19
                     48: #endif
                     49:        fldds           -16(0,%r30),%fr5
                     50:        stws            %r23,-12(0,%r30)
                     51:        comib,<=        0,%r25,L$1
                     52:        fcnvxf,dbl,dbl  %fr5,%fr5
                     53:        fldds           0(0,%r19),%fr4
                     54:        fadd,dbl        %fr4,%fr5,%fr5
                     55: L$1
                     56:        fcpy,sgl        %fr0,%fr6L
                     57:        fldws           -12(0,%r30),%fr6R
                     58:        fcnvxf,dbl,dbl  %fr6,%fr4
                     59:
                     60:        fdiv,dbl        %fr5,%fr4,%fr5
                     61:
                     62:        fcnvfx,dbl,dbl  %fr5,%fr4
                     63:        fstws           %fr4R,-16(%r30)
                     64:        xmpyu           %fr4R,%fr6R,%fr6
                     65:        ldws            -16(%r30),%r28
                     66:        fstds           %fr6,-16(0,%r30)
                     67:        ldws            -12(0,%r30),%r21
                     68:        ldws            -16(0,%r30),%r20
                     69:        sub             %r24,%r21,%r22
                     70:        subb            %r25,%r20,%r19
                     71:        comib,=         0,%r19,L$2
                     72:        ldo             -64(%r30),%r30
                     73:
                     74:        add             %r22,%r23,%r22
                     75:        ldo             -1(%r28),%r28
                     76: L$2    bv              0(%r2)
                     77:        stws            %r22,0(0,%r26)
                     78:
                     79:        .exit
                     80:        .procend