81 lines
1.7 KiB
ArmAsm
81 lines
1.7 KiB
ArmAsm
; 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 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 General Public License as published by
|
|
; the Free Software Foundation; either version 2, 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 General Public License for more details.
|
|
|
|
; You should have received a copy of the GNU General Public License
|
|
; along with the GNU MP Library; see the file COPYING. If not, write to
|
|
; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
|
|
|
|
; INPUT PARAMETERS
|
|
; res_ptr r2
|
|
; s1_ptr r3
|
|
; size r4
|
|
; s2_limb r5
|
|
|
|
#include "sysdep.h"
|
|
|
|
ENTRY (__mpn_mul_1)
|
|
ld r6,r3,0
|
|
sub r4,r0,r4
|
|
sub r3,r3,r4 ; r3 is offset s1_ptr
|
|
sub r2,r2,r4
|
|
sub r8,r2,8 ; r8 is offset res_ptr
|
|
mulu.d r10,r6,r5
|
|
|
|
addu r4,r4,1
|
|
bcnd eq0,r4,Lend
|
|
addu.co r2,r0,0 ; clear cy_limb
|
|
|
|
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 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
|
|
|
|
; This is the Right Way to do this on '110. 4 cycles / 64-bit limb.
|
|
; ld.d r10,
|
|
; mulu.d
|
|
; addu.cio
|
|
; addu.cio
|
|
; st.d
|
|
; mulu.d ,r11,r5
|
|
; ld.d r12,
|
|
; mulu.d ,r10,r5
|
|
; addu.cio
|
|
; addu.cio
|
|
; st.d
|
|
; mulu.d
|
|
; ld.d r10,
|
|
; mulu.d
|
|
; addu.cio
|
|
; addu.cio
|
|
; st.d
|
|
; mulu.d
|
|
; ld.d r10,
|
|
; mulu.d
|
|
; addu.cio
|
|
; addu.cio
|
|
; st.d
|
|
; mulu.d
|