144 lines
3.3 KiB
ActionScript
144 lines
3.3 KiB
ActionScript
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; mpn_sublsh1_n
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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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; ret mpn_sublsh1_n(mp_ptr,mp_ptr,mp_ptr,mp_size_t)
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GLOBAL_FUNC mpn_sublsh1_n
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push rbx
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lea rdi, [rdi+rcx*8-56]
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lea rsi, [rsi+rcx*8-56]
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lea rdx, [rdx+rcx*8-56]
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xor rax, rax
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xor r10, r10
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mov r8, 3
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sub r8, rcx
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jge L_skip
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add r8, 4
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mov r11, [rsi+r8*8+24]
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mov rcx, [rsi+r8*8+16]
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mov r9, [rsi+r8*8]
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mov rbx, [rsi+r8*8+8]
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jc L_skiplp
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align 16
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L_lp:
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add rax, 1
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sbb r9, [rdx+r8*8]
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sbb rbx, [rdx+r8*8+8]
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sbb rcx, [rdx+r8*8+16]
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sbb r11, [rdx+r8*8+24]
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sbb rax, rax
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add r10, 1
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sbb r9, [rdx+r8*8]
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sbb rbx, [rdx+r8*8+8]
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sbb rcx, [rdx+r8*8+16]
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sbb r11, [rdx+r8*8+24]
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sbb r10, r10
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mov [rdi+r8*8], r9
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mov [rdi+r8*8+8], rbx
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mov [rdi+r8*8+16], rcx
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mov [rdi+r8*8+24], r11
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mov r11, [rsi+r8*8+56]
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mov rcx, [rsi+r8*8+48]
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add r8, 4
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mov r9, [rsi+r8*8]
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mov rbx, [rsi+r8*8+8]
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jnc L_lp
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L_skiplp:
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add rax, 1
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sbb r9, [rdx+r8*8]
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sbb rbx, [rdx+r8*8+8]
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sbb rcx, [rdx+r8*8+16]
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sbb r11, [rdx+r8*8+24]
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sbb rax, rax
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add r10, 1
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sbb r9, [rdx+r8*8]
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sbb rbx, [rdx+r8*8+8]
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sbb rcx, [rdx+r8*8+16]
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sbb r11, [rdx+r8*8+24]
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sbb r10, r10
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mov [rdi+r8*8], r9
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mov [rdi+r8*8+8], rbx
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mov [rdi+r8*8+16], rcx
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mov [rdi+r8*8+24], r11
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L_skip:
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cmp r8, 2
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ja L_case0
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jz L_case1
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jp L_case2
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L_case3:
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mov rcx, [rsi+r8*8+48]
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mov r9, [rsi+r8*8+32]
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mov rbx, [rsi+r8*8+40]
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add rax, 1
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sbb r9, [rdx+r8*8+32]
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sbb rbx, [rdx+r8*8+40]
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sbb rcx, [rdx+r8*8+48]
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sbb rax, rax
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add r10, 1
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sbb r9, [rdx+r8*8+32]
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sbb rbx, [rdx+r8*8+40]
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sbb rcx, [rdx+r8*8+48]
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mov [rdi+r8*8+32], r9
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mov [rdi+r8*8+40], rbx
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mov [rdi+r8*8+48], rcx
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sbb rax, 0
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neg rax
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pop rbx
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ret
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align 16
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L_case2:
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mov r9, [rsi+r8*8+32]
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mov rbx, [rsi+r8*8+40]
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add rax, 1
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sbb r9, [rdx+r8*8+32]
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sbb rbx, [rdx+r8*8+40]
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sbb rax, rax
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add r10, 1
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sbb r9, [rdx+r8*8+32]
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sbb rbx, [rdx+r8*8+40]
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mov [rdi+r8*8+32], r9
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mov [rdi+r8*8+40], rbx
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sbb rax, 0
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neg rax
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pop rbx
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ret
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align 16
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L_case1:
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mov r9, [rsi+r8*8+32]
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add rax, 1
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sbb r9, [rdx+r8*8+32]
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sbb rax, rax
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add r10, 1
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sbb r9, [rdx+r8*8+32]
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mov [rdi+r8*8+32], r9
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sbb rax, 0
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neg rax
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pop rbx
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ret
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align 16
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L_case0:
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add r10, 1
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sbb rax, 0
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neg rax
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pop rbx
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ret
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end
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