[project @ 2000-08-18 15:44:28 by simonmar]

[ghc-hetmet.git] / ghc / rts / gmp / mpn / powerpc64 / copyi.asm

diff --git a/ghc/rts/gmp/mpn/powerpc64/copyi.asm b/ghc/rts/gmp/mpn/powerpc64/copyi.asm
new file mode 100644 (file)
index 0000000..a1bedc4
--- /dev/null
+++ b/ghc/rts/gmp/mpn/powerpc64/copyi.asm
@@ -0,0 +1,44 @@
+# PowerPC-64 mpn_copyi -- Copy a limb vector.
+
+# Copyright (C) 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 2.1 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; see the file COPYING.LIB.  If not, write to
+# the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+# MA 02111-1307, USA.
+
+
+# INPUT PARAMETERS
+# rptr r3
+# sptr r4
+# n    r5
+
+include(`../config.m4')
+
+# Unrolling this analogous to sparc64/copyi.s doesn't help for any
+# operand sizes.
+
+ASM_START()
+PROLOGUE(mpn_copyi)
+       cmpdi   cr0,r5,0
+       mtctr   r5
+       addi    r4,r4,-8
+       addi    r3,r3,-8
+       beq     cr0,.Lend
+.Loop: ldu     r0,8(r4)
+       stdu    r0,8(r3)
+       bdnz    .Loop
+.Lend: blr
+EPILOGUE(mpn_copyi)