200 lines
3.9 KiB
NASM
200 lines
3.9 KiB
NASM
; PROLOGUE(mpn_copyi)
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; Copyright 2009 Jason Moxham
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;
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; Windows Conversion Copyright 2008 Brian Gladman
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;
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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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;
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; void mpn_copyi(mp_ptr, mp_ptr, mp_size_t)
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; rdi rsi rdx
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; rcx rdx r8
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%define SMALL_LOOP 1
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%include "yasm_mac.inc"
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CPU Core2
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BITS 64
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LEAF_PROC mpn_copyi
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cmp r8, 0
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jz .9
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%if SMALL_LOOP <> 0
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cmp r8, 10
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jge .2
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xalign 16
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.1: mov rax, [rdx]
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mov [rcx], rax
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lea rdx, [rdx+8]
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lea rcx, [rcx+8]
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sub r8, 1
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jnz .1
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ret
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%endif
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.2: mov rax, rcx
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sub rax, rdx
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test rax, 0xF
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jz .17
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test rcx, 0xF
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jz .10
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mov r9, 5
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sub r9, r8
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lea rdx, [rdx+r8*8-40]
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lea rcx, [rcx+r8*8-40]
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movapd xmm1, [rdx+r9*8]
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movq [rcx+r9*8], xmm1
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add rcx, 8
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%if SMALL_LOOP = 0
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cmp r8, 1
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jz .9
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%endif
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cmp r9, 0
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jge .4
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xalign 16
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.3: movapd xmm0, [rdx+r9*8+16]
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add r9, 4
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8-32], xmm1
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movapd xmm1, [rdx+r9*8+0]
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shufpd xmm0, xmm1, 1
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movapd [rcx+r9*8-16], xmm0
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jnc .3
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.4: cmp r9, 2
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ja .8
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jz .7
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jp .6
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xalign 16
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.5: movapd xmm0, [rdx+r9*8+16]
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8], xmm1
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movapd xmm1, [rdx+r9*8+32]
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shufpd xmm0, xmm1, 1
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movapd [rcx+r9*8+16], xmm0
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ret
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xalign 16
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.6: movapd xmm0, [rdx+r9*8+16]
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8], xmm1
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movhpd [rcx+r9*8+16], xmm0
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ret
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xalign 16
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.7: movapd xmm0, [rdx+r9*8+16]
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8], xmm1
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ret
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xalign 16
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.8: movhpd [rcx+r9*8], xmm1
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.9: ret
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.10:mov r9, 4
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sub r9, r8
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lea rdx, [rdx+r8*8-32]
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lea rcx, [rcx+r8*8-32]
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movapd xmm1, [rdx+r9*8-8]
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sub rdx, 8
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cmp r9, 0
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jge .12
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xalign 16
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.11:movapd xmm0, [rdx+r9*8+16]
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add r9, 4
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8-32], xmm1
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movapd xmm1, [rdx+r9*8+0]
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shufpd xmm0, xmm1, 1
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movapd [rcx+r9*8-16], xmm0
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jnc .11
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.12:cmp r9, 2
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ja .16
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jz .15
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jp .14
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xalign 16
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.13:movapd xmm0, [rdx+r9*8+16]
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8], xmm1
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movapd xmm1, [rdx+r9*8+32]
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shufpd xmm0, xmm1, 1
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movapd [rcx+r9*8+16], xmm0
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ret
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xalign 16
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.14:movapd xmm0, [rdx+r9*8+16]
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8], xmm1
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movhpd [rcx+r9*8+16], xmm0
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ret
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xalign 16
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.15:movapd xmm0, [rdx+r9*8+16]
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shufpd xmm1, xmm0, 1
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movapd [rcx+r9*8], xmm1
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ret
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xalign 16
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.16:movhpd [rcx+r9*8], xmm1
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ret
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xalign 16
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.17:mov r9, 3
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sub r9, r8
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test rcx, 0xF
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lea rdx, [rdx+r8*8-24]
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lea rcx, [rcx+r8*8-24]
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jz .18
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mov rax, [rdx+r9*8]
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mov [rcx+r9*8], rax
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add r9, 1
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.18:cmp r9, 0
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jge .20
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xalign 16
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.19:add r9, 4
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movapd xmm0, [rdx+r9*8-32]
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movapd [rcx+r9*8-32], xmm0
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movapd xmm1, [rdx+r9*8-16]
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movapd [rcx+r9*8-16], xmm1
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jnc .19
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.20:cmp r9, 2
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ja .22
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je .24
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jp .23
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.21:movapd xmm0, [rdx+r9*8]
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movapd [rcx+r9*8], xmm0
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mov rax, [rdx+r9*8+16]
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mov [rcx+r9*8+16], rax
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.22:ret
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xalign 16
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.23:movapd xmm0, [rdx+r9*8]
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movapd [rcx+r9*8], xmm0
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ret
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xalign 16
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.24:mov rax, [rdx+r9*8]
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mov [rcx+r9*8], rax
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ret
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end
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