Annotation of OpenXM_contrib/gmp/mpn/hppa/hppa1_1/pa7100/sub_n.s, Revision 1.1.1.2
1.1.1.2 ! maekawa 1: ; HP-PA __gmpn_sub_n -- Subtract two limb vectors of the same length > 0 and
1.1 maekawa 2: ; store difference in a third limb vector.
3: ; This is optimized for the PA7100, where is runs at 4.25 cycles/limb
4:
1.1.1.2 ! maekawa 5: ; Copyright (C) 1992, 1994, 2000 Free Software Foundation, Inc.
1.1 maekawa 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
1.1.1.2 ! maekawa 10: ; it under the terms of the GNU Lesser General Public License as published by
! 11: ; the Free Software Foundation; either version 2.1 of the License, or (at your
1.1 maekawa 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
1.1.1.2 ! maekawa 16: ; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
1.1 maekawa 17: ; License for more details.
18:
1.1.1.2 ! maekawa 19: ; You should have received a copy of the GNU Lesser General Public License
1.1 maekawa 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: ; res_ptr gr26
27: ; s1_ptr gr25
28: ; s2_ptr gr24
29: ; size gr23
30:
31: .code
1.1.1.2 ! maekawa 32: .export __gmpn_sub_n
! 33: __gmpn_sub_n
1.1 maekawa 34: .proc
35: .callinfo frame=0,no_calls
36: .entry
37:
38: ldws,ma 4(0,%r25),%r20
39: ldws,ma 4(0,%r24),%r19
40:
41: addib,<= -5,%r23,L$rest
42: sub %r20,%r19,%r28 ; subtract first limbs ignoring cy
43:
44: L$loop ldws,ma 4(0,%r25),%r20
45: ldws,ma 4(0,%r24),%r19
46: stws,ma %r28,4(0,%r26)
47: subb %r20,%r19,%r28
48: ldws,ma 4(0,%r25),%r20
49: ldws,ma 4(0,%r24),%r19
50: stws,ma %r28,4(0,%r26)
51: subb %r20,%r19,%r28
52: ldws,ma 4(0,%r25),%r20
53: ldws,ma 4(0,%r24),%r19
54: stws,ma %r28,4(0,%r26)
55: subb %r20,%r19,%r28
56: ldws,ma 4(0,%r25),%r20
57: ldws,ma 4(0,%r24),%r19
58: stws,ma %r28,4(0,%r26)
59: addib,> -4,%r23,L$loop
60: subb %r20,%r19,%r28
61:
62: L$rest addib,= 4,%r23,L$end
63: nop
64: L$eloop ldws,ma 4(0,%r25),%r20
65: ldws,ma 4(0,%r24),%r19
66: stws,ma %r28,4(0,%r26)
67: addib,> -1,%r23,L$eloop
68: subb %r20,%r19,%r28
69:
70: L$end stws %r28,0(0,%r26)
71: addc %r0,%r0,%r28
72: bv 0(%r2)
73: subi 1,%r28,%r28
74:
75: .exit
76: .procend
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>