--- /dev/null
+# VAX __gmpn_add_n -- Add two limb vectors of the same length > 0 and store
+# sum in a third limb vector.
+
+# Copyright 1999, 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/.
+
+
+# INPUT PARAMETERS
+# res_ptr (sp + 4)
+# s1_ptr (sp + 8)
+# s2_ptr (sp + 12)
+# size (sp + 16)
+
+.text
+ .align 1
+.globl ___gmpn_add_n
+___gmpn_add_n:
+ .word 0x0
+ movl 16(ap),r0
+ movl 12(ap),r1
+ movl 8(ap),r2
+ movl 4(ap),r3
+ mnegl r0,r5
+ addl2 $3,r0
+ ashl $-2,r0,r0 # unroll loop count
+ bicl2 $-4,r5 # mask out low 2 bits
+ movaq (r5)[r5],r5 # 9x
+ jmp Loop(r5)
+
+Loop: movl (r2)+,r4
+ adwc (r1)+,r4
+ movl r4,(r3)+
+ movl (r2)+,r4
+ adwc (r1)+,r4
+ movl r4,(r3)+
+ movl (r2)+,r4
+ adwc (r1)+,r4
+ movl r4,(r3)+
+ movl (r2)+,r4
+ adwc (r1)+,r4
+ movl r4,(r3)+
+ sobgtr r0,Loop
+
+ adwc r0,r0
+ ret