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authorPeter Breitenlohner <peb@mppmu.mpg.de>2014-06-18 11:12:01 +0000
committerPeter Breitenlohner <peb@mppmu.mpg.de>2014-06-18 11:12:01 +0000
commit0c2f0333a4e539325da80cdf3fb182cd17134665 (patch)
treede5daa66b5595292a33c25110aa58ff8bff75543 /Build/source/libs/gmp/gmp-6.0.0/mpn/sh/add_n.asm
parentdb612d5045ef55da386a2c3350d4811d1da1a858 (diff)
Add libs/gmp and libs/mpfr in preparation for MetaPost 2.0
git-svn-id: svn://tug.org/texlive/trunk@34274 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/gmp/gmp-6.0.0/mpn/sh/add_n.asm')
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diff --git a/Build/source/libs/gmp/gmp-6.0.0/mpn/sh/add_n.asm b/Build/source/libs/gmp/gmp-6.0.0/mpn/sh/add_n.asm
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+dnl SH mpn_add_n -- Add two limb vectors of the same length > 0 and store sum
+dnl in a third limb vector.
+
+dnl Copyright 1995, 1997, 2000, 2011 Free Software Foundation, Inc.
+
+dnl This file is part of the GNU MP Library.
+dnl
+dnl The GNU MP Library is free software; you can redistribute it and/or modify
+dnl it under the terms of either:
+dnl
+dnl * the GNU Lesser General Public License as published by the Free
+dnl Software Foundation; either version 3 of the License, or (at your
+dnl option) any later version.
+dnl
+dnl or
+dnl
+dnl * the GNU General Public License as published by the Free Software
+dnl Foundation; either version 2 of the License, or (at your option) any
+dnl later version.
+dnl
+dnl or both in parallel, as here.
+dnl
+dnl The GNU MP Library is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+dnl for more details.
+dnl
+dnl You should have received copies of the GNU General Public License and the
+dnl GNU Lesser General Public License along with the GNU MP Library. If not,
+dnl see https://www.gnu.org/licenses/.
+
+
+include(`../config.m4')
+
+C INPUT PARAMETERS
+C rp r4
+C up r5
+C vp r6
+C n r7
+
+changecom(blah) C disable # to make all C comments below work
+
+ASM_START()
+PROLOGUE(mpn_add_n)
+ mov #0,r3 C clear cy save reg
+
+L(top): mov.l @r5+,r1
+ mov.l @r6+,r2
+ shlr r3 C restore cy
+ addc r2,r1
+ movt r3 C save cy
+ mov.l r1,@r4
+ dt r7
+ bf.s L(top)
+ add #4,r4
+
+ rts
+ mov r3,r0 C return carry-out from most significant limb
+EPILOGUE()