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 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: ; rem_ptr gr26
26: ; n1 gr25
27: ; n0 gr24
28: ; d gr23
29:
30: .code
31: L$0000 .word 0x43f00000
32: .word 0x0
33: .export __udiv_qrnnd
34: __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: ldil L'L$0000,%r19
43: ldo R'L$0000(%r19),%r19
44: fldds -16(0,%r30),%fr5
45: stws %r23,-12(0,%r30)
46: comib,<= 0,%r25,L$1
47: fcnvxf,dbl,dbl %fr5,%fr5
48: fldds 0(0,%r19),%fr4
49: fadd,dbl %fr4,%fr5,%fr5
50: L$1
51: fcpy,sgl %fr0,%fr6L
52: fldws -12(0,%r30),%fr6R
53: fcnvxf,dbl,dbl %fr6,%fr4
54:
55: fdiv,dbl %fr5,%fr4,%fr5
56:
57: fcnvfx,dbl,dbl %fr5,%fr4
58: fstws %fr4R,-16(%r30)
59: xmpyu %fr4R,%fr6R,%fr6
60: ldws -16(%r30),%r28
61: fstds %fr6,-16(0,%r30)
62: ldws -12(0,%r30),%r21
63: ldws -16(0,%r30),%r20
64: sub %r24,%r21,%r22
65: subb %r25,%r20,%r19
66: comib,= 0,%r19,L$2
67: ldo -64(%r30),%r30
68:
69: add %r22,%r23,%r22
70: ldo -1(%r28),%r28
71: L$2 bv 0(%r2)
72: stws %r22,0(0,%r26)
73:
74: .exit
75: .procend
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