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Diffstat (limited to 'gmp/mpn/clipper/add_n.s')
| -rw-r--r-- | gmp/mpn/clipper/add_n.s | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gmp/mpn/clipper/add_n.s b/gmp/mpn/clipper/add_n.s new file mode 100644 index 0000000000..225b95042c --- /dev/null +++ b/gmp/mpn/clipper/add_n.s @@ -0,0 +1,46 @@ +; Clipper __gmpn_add_n -- Add two limb vectors of the same length > 0 and store +; sum in a third limb vector. + +; Copyright 1995, 2000 Free Software Foundation, Inc. + +; This file is part of the GNU MP Library. + +; The GNU MP Library is free software; you can redistribute it and/or modify +; it under the terms of the GNU Lesser General Public License as published by +; the Free Software Foundation; either version 3 of the License, or (at your +; option) any later version. + +; The GNU MP Library is distributed in the hope that it will be useful, but +; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +; License for more details. + +; You should have received a copy of the GNU Lesser General Public License +; along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. + +.text + .align 16 +.globl ___gmpn_add_n +___gmpn_add_n: + subq $8,sp + storw r6,(sp) + loadw 12(sp),r2 + loadw 16(sp),r3 + loadq $0,r6 ; clear carry-save register + +.Loop: loadw (r1),r4 + loadw (r2),r5 + addwc r6,r6 ; restore carry from r6 + addwc r5,r4 + storw r4,(r0) + subwc r6,r6 ; save carry in r6 + addq $4,r0 + addq $4,r1 + addq $4,r2 + subq $1,r3 + brne .Loop + + negw r6,r0 + loadw (sp),r6 + addq $8,sp + ret sp |