1995-10-16 09:18:40 +08:00
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# VAX __mpn_addmul_1 -- Multiply a limb vector with a limb and add
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# the result to a second limb vector.
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# Copyright (C) 1992, 1994 Free Software Foundation, Inc.
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# This file is part of the GNU MP Library.
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# The GNU MP Library is free software; you can redistribute it and/or modify
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# it under the terms of the GNU Library General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or (at your
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# option) any later version.
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# The GNU MP Library is distributed in the hope that it will be useful, but
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# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
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# License for more details.
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# You should have received a copy of the GNU Library General Public License
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# along with the GNU MP Library; see the file COPYING.LIB. If not, write to
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1996-05-08 05:04:45 +08:00
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# the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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# MA 02111-1307, USA.
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1995-10-16 09:18:40 +08:00
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# INPUT PARAMETERS
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# res_ptr (sp + 4)
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# s1_ptr (sp + 8)
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# size (sp + 12)
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# s2_limb (sp + 16)
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.text
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.align 1
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.globl ___mpn_addmul_1
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___mpn_addmul_1:
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.word 0xfc0
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movl 12(ap),r4
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movl 8(ap),r8
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movl 4(ap),r9
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movl 16(ap),r6
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jlss s2_big
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clrl r3
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incl r4
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ashl $-1,r4,r7
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jlbc r4,L1
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clrl r11
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# Loop for S2_LIMB < 0x80000000
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Loop1: movl (r8)+,r1
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jlss L1n0
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emul r1,r6,$0,r2
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addl2 r11,r2
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adwc $0,r3
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addl2 r2,(r9)+
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adwc $0,r3
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L1: movl (r8)+,r1
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jlss L1n1
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L1p1: emul r1,r6,$0,r10
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addl2 r3,r10
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adwc $0,r11
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addl2 r10,(r9)+
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adwc $0,r11
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jsobgtr r7,Loop1
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movl r11,r0
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ret
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L1n0: emul r1,r6,$0,r2
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addl2 r11,r2
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adwc r6,r3
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addl2 r2,(r9)+
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adwc $0,r3
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movl (r8)+,r1
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jgeq L1p1
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L1n1: emul r1,r6,$0,r10
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addl2 r3,r10
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adwc r6,r11
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addl2 r10,(r9)+
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adwc $0,r11
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jsobgtr r7,Loop1
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movl r11,r0
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ret
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s2_big: clrl r3
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incl r4
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ashl $-1,r4,r7
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jlbc r4,L2
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clrl r11
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# Loop for S2_LIMB >= 0x80000000
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Loop2: movl (r8)+,r1
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jlss L2n0
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emul r1,r6,$0,r2
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addl2 r11,r2
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adwc r1,r3
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addl2 r2,(r9)+
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adwc $0,r3
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L2: movl (r8)+,r1
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jlss L2n1
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L2p1: emul r1,r6,$0,r10
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addl2 r3,r10
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adwc r1,r11
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addl2 r10,(r9)+
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adwc $0,r11
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jsobgtr r7,Loop2
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movl r11,r0
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ret
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L2n0: emul r1,r6,$0,r2
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addl2 r11,r2
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adwc r6,r3
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addl2 r2,(r9)+
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adwc r1,r3
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movl (r8)+,r1
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jgeq L2p1
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L2n1: emul r1,r6,$0,r10
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addl2 r3,r10
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adwc r6,r11
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addl2 r10,(r9)+
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adwc r1,r11
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jsobgtr r7,Loop2
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movl r11,r0
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ret
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