b9de2dde53
* sysdeps/sparc/sparc32/sparcv9/mul_1.S: Properly optimize for 32-bit sparc V9 rather than using V8 code. * sysdeps/sparc/sparc32/sparcv9/addmul_1.S: Likewise. * sysdeps/sparc/sparc32/sparcv9/submul_1.S: Likewise.
65 lines
1.4 KiB
ArmAsm
65 lines
1.4 KiB
ArmAsm
! SPARC v9 32-bit mpn_mul_1.
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!
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! Copyright 2010-2013 Free Software Foundation, Inc.
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!
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! This file is part of the GNU MP Library.
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!
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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 Lesser General Public License as published
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! by the Free Software Foundation; either version 3 of the License, or (at
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! your option) any later version.
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! The GNU MP Library is distributed in the hope that it will be useful, but
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! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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! or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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! License for more details.
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!
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! You should have received a copy of the GNU Lesser General Public License
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! along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
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! INPUT PARAMETERS
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! res_ptr %o0
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! s1_ptr %o1
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! size %o2
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! s2_limb %o3
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#include <sysdep.h>
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ENTRY(__mpn_mul_1)
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srl %o2, 0, %o2
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srl %o3, 0, %o3
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subcc %o2, 1, %o2
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be .Lfinal_one
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clr %o5
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.Ltop:
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lduw [%o1+0], %g1
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lduw [%o1+4], %g2
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mulx %g1, %o3, %g3
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add %o1, 8, %o1
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mulx %g2, %o3, %o4
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sub %o2, 2, %o2
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add %o0, 8, %o0
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add %o5, %g3, %g3
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stw %g3, [%o0-8]
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srlx %g3, 32, %o5
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add %o5, %o4, %o4
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stw %o4, [%o0-4]
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brgz %o2, .Ltop
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srlx %o4, 32, %o5
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brlz,pt %o2, .Ldone
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nop
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.Lfinal_one:
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lduw [%o1+0], %g1
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mulx %g1, %o3, %g3
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add %o5, %g3, %g3
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stw %g3, [%o0+0]
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srlx %g3, 32, %o5
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.Ldone:
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retl
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mov %o5, %o0
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END(__mpn_mul_1)
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