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Annotation of OpenXM_contrib/gmp/mpn/hppa/hppa1_1/pa7100/rshift.s, Revision 1.1.1.1

1.1       maekawa     1: ; HP-PA  __mpn_rshift --
                      2: ; This is optimized for the PA7100, where is runs at 3.25 cycles/limb
                      3:
                      4: ; Copyright (C) 1992, 1994 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:
                     24: ; INPUT PARAMETERS
                     25: ; res_ptr      gr26
                     26: ; s_ptr                gr25
                     27: ; size         gr24
                     28: ; cnt          gr23
                     29:
                     30:        .code
                     31:        .export         __mpn_rshift
                     32: __mpn_rshift
                     33:        .proc
                     34:        .callinfo       frame=64,no_calls
                     35:        .entry
                     36:
                     37:        ldws,ma         4(0,%r25),%r22
                     38:        mtsar           %r23
                     39:        addib,=         -1,%r24,L$0004
                     40:        vshd            %r22,%r0,%r28           ; compute carry out limb
                     41:        ldws,ma         4(0,%r25),%r29
                     42:        addib,<=        -5,%r24,L$rest
                     43:        vshd            %r29,%r22,%r20
                     44:
                     45: L$loop ldws,ma         4(0,%r25),%r22
                     46:        stws,ma         %r20,4(0,%r26)
                     47:        vshd            %r22,%r29,%r20
                     48:        ldws,ma         4(0,%r25),%r29
                     49:        stws,ma         %r20,4(0,%r26)
                     50:        vshd            %r29,%r22,%r20
                     51:        ldws,ma         4(0,%r25),%r22
                     52:        stws,ma         %r20,4(0,%r26)
                     53:        vshd            %r22,%r29,%r20
                     54:        ldws,ma         4(0,%r25),%r29
                     55:        stws,ma         %r20,4(0,%r26)
                     56:        addib,>         -4,%r24,L$loop
                     57:        vshd            %r29,%r22,%r20
                     58:
                     59: L$rest addib,=         4,%r24,L$end1
                     60:        nop
                     61: L$eloop        ldws,ma         4(0,%r25),%r22
                     62:        stws,ma         %r20,4(0,%r26)
                     63:        addib,<=        -1,%r24,L$end2
                     64:        vshd            %r22,%r29,%r20
                     65:        ldws,ma         4(0,%r25),%r29
                     66:        stws,ma         %r20,4(0,%r26)
                     67:        addib,>         -1,%r24,L$eloop
                     68:        vshd            %r29,%r22,%r20
                     69:
                     70: L$end1 stws,ma         %r20,4(0,%r26)
                     71:        vshd            %r0,%r29,%r20
                     72:        bv              0(%r2)
                     73:        stw             %r20,0(0,%r26)
                     74: L$end2 stws,ma         %r20,4(0,%r26)
                     75: L$0004 vshd            %r0,%r22,%r20
                     76:        bv              0(%r2)
                     77:        stw             %r20,0(0,%r26)
                     78:
                     79:        .exit
                     80:        .procend