Annotation of OpenXM_contrib/gmp/mpn/vax/add_n.s, Revision 1.1.1.3
1.1.1.2 maekawa 1: # VAX __gmpn_add_n -- Add two limb vectors of the same length > 0 and store
1.1 maekawa 2: # sum in a third limb vector.
3:
1.1.1.3 ! ohara 4: # Copyright 1999, 2000 Free Software Foundation, Inc.
1.1 maekawa 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
1.1.1.2 maekawa 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
1.1 maekawa 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
1.1.1.2 maekawa 15: # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
1.1 maekawa 16: # License for more details.
17:
1.1.1.2 maekawa 18: # You should have received a copy of the GNU Lesser General Public License
1.1 maekawa 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 (sp + 4)
26: # s1_ptr (sp + 8)
27: # s2_ptr (sp + 12)
28: # size (sp + 16)
29:
30: .text
31: .align 1
1.1.1.2 maekawa 32: .globl ___gmpn_add_n
33: ___gmpn_add_n:
1.1 maekawa 34: .word 0x0
35: movl 16(ap),r0
36: movl 12(ap),r1
37: movl 8(ap),r2
38: movl 4(ap),r3
1.1.1.2 maekawa 39: mnegl r0,r5
40: addl2 $3,r0
41: ashl $-2,r0,r0 # unroll loop count
42: bicl2 $-4,r5 # mask out low 2 bits
43: movaq (r5)[r5],r5 # 9x
44: jmp Loop(r5)
1.1 maekawa 45:
1.1.1.2 maekawa 46: Loop: movl (r2)+,r4
47: adwc (r1)+,r4
48: movl r4,(r3)+
49: movl (r2)+,r4
50: adwc (r1)+,r4
51: movl r4,(r3)+
52: movl (r2)+,r4
53: adwc (r1)+,r4
54: movl r4,(r3)+
1.1 maekawa 55: movl (r2)+,r4
56: adwc (r1)+,r4
57: movl r4,(r3)+
1.1.1.2 maekawa 58: sobgtr r0,Loop
1.1 maekawa 59:
60: adwc r0,r0
61: ret
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