73 lines
1.7 KiB
ActionScript
73 lines
1.7 KiB
ActionScript
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; mpn_copyd
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; Copyright 2009 Jason Moxham
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; This file is part of the MPIR Library.
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; The MPIR 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 2.1 of the License, or (at
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; your option) any later version.
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; The MPIR 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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; You should have received a copy of the GNU Lesser General Public License
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; along with the MPIR Library; see the file COPYING.LIB. If not, write
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; to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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; Boston, MA 02110-1301, USA.
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%include 'yasm_mac.inc'
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; mpn_copyd(mp_ptr rdi,mp_ptr rsi,mp_size_t rdx)
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; (rdi,rdx)=(rsi,rdx)
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GLOBAL_FUNC mpn_copyd
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lea rsi, [rsi+rdx*8-8]
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lea rdi, [rdi+rdx*8-8]
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sub rdx, 4
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jl L_skiplp
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align 16
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L_lp:
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mov rax, [rsi]
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mov rcx, [rsi-8]
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mov r8, [rsi-16]
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mov r9, [rsi-24]
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mov [rdi], rax
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mov [rdi-8], rcx
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lea rdi, [rdi-32]
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sub rdx, 4
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mov [rdi+16], r8
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mov [rdi+8], r9
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lea rsi, [rsi-32]
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jns L_lp
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L_skiplp:
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add rdx, 2
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jz L_case2
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jns L_case3
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jp L_case1
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L_case0:
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ret
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align 16
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L_case1:
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mov rax, [rsi]
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mov [rdi], rax
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ret
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align 16
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L_case2:
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mov rax, [rsi]
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mov rcx, [rsi-8]
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mov [rdi], rax
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mov [rdi-8], rcx
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ret
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align 16
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L_case3:
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mov rax, [rsi]
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mov rcx, [rsi-8]
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mov r8, [rsi-16]
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mov [rdi], rax
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mov [rdi-8], rcx
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mov [rdi-16], r8
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ret
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end
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