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authorRoland McGrath <roland@gnu.org>2004-10-24 19:23:43 +0000
committerRoland McGrath <roland@gnu.org>2004-10-24 19:23:43 +0000
commit89c235754c8986b6394a969e92f75ba63ecbbf7c (patch)
tree880ae7f5c447ad63bc171148fc4b90ff102eecb2 /sysdeps/m88k/m88110/mul_1.s
parent8aeb5058b6457cf9ca8d76026cbb60ca07015570 (diff)
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diff --git a/sysdeps/m88k/m88110/mul_1.s b/sysdeps/m88k/m88110/mul_1.s
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-; mc88110 __mpn_mul_1 -- Multiply a limb vector with a single limb and
-; store the product in a second limb vector.
-
-; Copyright (C) 1992, 1994, 1995 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
-; res_ptr r2
-; s1_ptr r3
-; size r4
-; s2_limb r5
-
- text
- align 16
- global ___mpn_mul_1
-___mpn_mul_1:
- ; Make S1_PTR and RES_PTR point at the end of their blocks
- ; and negate SIZE.
- lda r3,r3[r4]
- lda r8,r2[r4] ; RES_PTR in r8 since r2 is retval
- subu r4,r0,r4
-
- addu.co r2,r0,r0 ; r2 = cy = 0
-
- ld r6,r3[r4]
- addu r4,r4,1
- mulu.d r10,r6,r5
- bcnd.n eq0,r4,Lend
- subu r8,r8,8
-
-Loop: ld r6,r3[r4]
- addu.cio r9,r11,r2
- or r2,r10,r0 ; could be avoided if unrolled
- addu r4,r4,1
- mulu.d r10,r6,r5
- bcnd.n ne0,r4,Loop
- st r9,r8[r4]
-
-Lend: addu.cio r9,r11,r2
- st r9,r8,4
- jmp.n r1
- addu.ci r2,r10,r0