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81 lines
1.7 KiB
ArmAsm
81 lines
1.7 KiB
ArmAsm
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; mc88110 __mpn_mul_1 -- Multiply a limb vector with a single limb and
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; store the product in a second limb vector.
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; Copyright (C) 1992, 1994 Free Software Foundation, Inc.
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; This file is part of the GNU MP Library.
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; The GNU MP Library is free software; you can redistribute it and/or modify
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; it under the terms of the GNU General Public License as published by
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; the Free Software Foundation; either version 2, or (at your option)
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; any later version.
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; The GNU MP Library is distributed in the hope that it will be useful,
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; but WITHOUT ANY WARRANTY; without even the implied warranty of
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; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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; GNU General Public License for more details.
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; You should have received a copy of the GNU General Public License
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; along with the GNU MP Library; see the file COPYING. If not, write to
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; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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; INPUT PARAMETERS
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; res_ptr r2
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; s1_ptr r3
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; size r4
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; s2_limb r5
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#include "sysdep.h"
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ENTRY (__mpn_mul_1)
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ld r6,r3,0
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sub r4,r0,r4
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sub r3,r3,r4 ; r3 is offset s1_ptr
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sub r2,r2,r4
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sub r8,r2,8 ; r8 is offset res_ptr
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mulu.d r10,r6,r5
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addu r4,r4,1
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bcnd eq0,r4,Lend
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addu.co r2,r0,0 ; clear cy_limb
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Loop: ld r6,r3[r4]
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addu.cio r9,r11,r2
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or r2,r10,r0 ; could be avoided if unrolled
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addu r4,r4,1
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mulu.d r10,r6,r5
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bcnd ne0,r4,Loop
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st r9,r8[r4]
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Lend: addu.cio r9,r11,r2
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st r9,r8,4
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jmp.n r1
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addu.ci r2,r10,r0
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; This is the Right Way to do this on '110. 4 cycles / 64-bit limb.
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; ld.d r10,
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; mulu.d
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; addu.cio
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; addu.cio
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; st.d
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; mulu.d ,r11,r5
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; ld.d r12,
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; mulu.d ,r10,r5
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; addu.cio
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; addu.cio
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; st.d
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; mulu.d
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; ld.d r10,
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; mulu.d
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; addu.cio
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; addu.cio
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; st.d
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; mulu.d
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; ld.d r10,
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; mulu.d
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; addu.cio
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; addu.cio
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; st.d
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; mulu.d
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