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@ ARM/Thumb mpn_add_n -- Add two limb vectors of the same length > 0 and store
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@ sum in a third limb vector.
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@ Copyright 1997, 2000 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 Lesser General Public License as published by
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@ the Free Software Foundation; either version 2.1 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 Lesser General Public
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@ License for more details.
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@ You should have received a copy of the GNU Lesser 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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@ the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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mov r6, #1 @ init carry save register
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Loop: sub r6, #1 @ restore carry (set iff r6 was 0)
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ldmia r1!, {r4} @ load next limb from S1
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ldmia r2!, {r5} @ load next limb from S2
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stmia r0!, {r4} @ store result limb to RES
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sbc r6, r6 @ save negated carry
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bge Loop @ loop back while remaining count >= 4