--- /dev/null
+dnl ARM mpn_copyd.
+
+dnl Copyright 2003 Free Software Foundation, Inc.
+
+dnl This file is part of the GNU MP Library.
+
+dnl The GNU MP Library is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU Lesser General Public License as published
+dnl by the Free Software Foundation; either version 3 of the License, or (at
+dnl your option) any later version.
+
+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 Lesser General Public
+dnl License for more details.
+
+dnl You should have received a copy of the GNU Lesser General Public License
+dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
+
+include(`../config.m4')
+
+C This runs at 3 cycles/limb in the StrongARM.
+
+define(`rp',`r0')
+define(`up',`r1')
+define(`n',`r2')
+
+
+ASM_START()
+PROLOGUE(mpn_copyd)
+ mov r12, n, lsl #2
+ sub r12, r12, #4
+ add rp, rp, r12 C make rp point at last limb
+ add up, up, r12 C make up point at last limb
+
+ tst n, #1
+ beq L(skip1)
+ ldr r3, [up], #-4
+ str r3, [rp], #-4
+L(skip1):
+ tst n, #2
+ beq L(skip2)
+ ldmda up!, { r3, r12 } C load 2 limbs
+ stmda rp!, { r3, r12 } C store 2 limbs
+L(skip2):
+ bics n, n, #3
+ beq L(return)
+ stmfd sp!, { r7, r8, r9 } C save regs on stack
+L(loop):
+ ldmda up!, { r3, r8, r9, r12 } C load 4 limbs
+ ldr r7, [rp, #-12] C cache allocate
+ subs n, n, #4
+ stmda rp!, { r3, r8, r9, r12 } C store 4 limbs
+ bne L(loop)
+ ldmfd sp!, { r7, r8, r9 } C restore regs from stack
+L(return):
+ mov pc, lr
+EPILOGUE(mpn_copyd)