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ashiftrt.S revision 1.4.4.1
      1 /*	$NetBSD: ashiftrt.S,v 1.4.4.1 2006/09/09 02:57:52 rpaulo Exp $	*/
      2 
      3 /*-
      4  * Copyright (C) 1999 Tsubai Masanari.  All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. The name of the author may not be used to endorse or promote products
     15  *    derived from this software without specific prior written permission.
     16  *
     17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <machine/asm.h>
     30 
     31 
     32 NENTRY(__ashiftrt_r4_31)
     33 	shll	r4
     34 	rts
     35 	 subc	r4, r4
     36 
     37 ALTENTRY(__ashiftrt_r4_30)
     38 	shar	r4
     39 
     40 ALTENTRY(__ashiftrt_r4_29)
     41 	shar	r4
     42 
     43 ALTENTRY(__ashiftrt_r4_28)
     44 	shar	r4
     45 
     46 ALTENTRY(__ashiftrt_r4_27)
     47 	shar	r4
     48 
     49 ALTENTRY(__ashiftrt_r4_26)
     50 	shar	r4
     51 
     52 ALTENTRY(__ashiftrt_r4_25)
     53 	shar	r4
     54 
     55 ALTENTRY(__ashiftrt_r4_24)
     56 	shlr16	r4
     57 	shlr8	r4
     58 	rts
     59 	 exts.b	r4, r4
     60 
     61 ALTENTRY(__ashiftrt_r4_23)
     62 	shar	r4
     63 
     64 ALTENTRY(__ashiftrt_r4_22)
     65 	shar	r4
     66 
     67 ALTENTRY(__ashiftrt_r4_21)
     68 	shar	r4
     69 
     70 ALTENTRY(__ashiftrt_r4_20)
     71 	shar	r4
     72 
     73 ALTENTRY(__ashiftrt_r4_19)
     74 	shar	r4
     75 
     76 ALTENTRY(__ashiftrt_r4_18)
     77 	shar	r4
     78 
     79 ALTENTRY(__ashiftrt_r4_17)
     80 	shar	r4
     81 
     82 ALTENTRY(__ashiftrt_r4_16)
     83 	shlr16	r4
     84 	rts
     85 	 exts.w	r4, r4
     86 
     87 ALTENTRY(__ashiftrt_r4_15)
     88 	swap.w	r4, r4
     89 	cmp/pz	r4
     90 	bf/s	1f
     91 	 exts.w	r4, r4
     92 	rts
     93 	 shll	r4
     94 1:
     95 	sett
     96 	rts
     97 	 rotcl	r4
     98 
     99 ALTENTRY(__ashiftrt_r4_14)
    100 	shar	r4
    101 
    102 ALTENTRY(__ashiftrt_r4_13)
    103 	shar	r4
    104 
    105 ALTENTRY(__ashiftrt_r4_12)
    106 	shar	r4
    107 
    108 ALTENTRY(__ashiftrt_r4_11)
    109 	shar	r4
    110 
    111 ALTENTRY(__ashiftrt_r4_10)
    112 	shar	r4
    113 
    114 ALTENTRY(__ashiftrt_r4_9)
    115 	shar	r4
    116 
    117 ALTENTRY(__ashiftrt_r4_8)
    118 	shar	r4
    119 
    120 ALTENTRY(__ashiftrt_r4_7)
    121 	shar	r4
    122 
    123 ALTENTRY(__ashiftrt_r4_6)
    124 	shar	r4
    125 
    126 ALTENTRY(__ashiftrt_r4_5)
    127 	shar	r4
    128 
    129 ALTENTRY(__ashiftrt_r4_4)
    130 	shar	r4
    131 
    132 ALTENTRY(__ashiftrt_r4_3)
    133 	shar	r4
    134 
    135 ALTENTRY(__ashiftrt_r4_2)
    136 	shar	r4
    137 
    138 ALTENTRY(__ashiftrt_r4_1)
    139 	rts
    140 	 shar	r4
    141 
    142 ALTENTRY(__ashiftrt_r4_0)
    143 	rts
    144 	 nop
    145