91 lines
2.0 KiB
ActionScript
91 lines
2.0 KiB
ActionScript
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; X86_64 mpn_divrem_euclidean_1
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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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; (rdi,rdx)=(rsi,rdx) / rcx
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; return rax=remainder
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GLOBAL_FUNC mpn_divrem_euclidean_qr_1
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push r15
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push r14
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push r13
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push r12
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push rbp
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mov r14, rdx
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mov r8, rcx
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xor r15, r15
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bsr rcx, r8
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xor rcx, 63
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shl r8, cl
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xor r11, r11
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mov rdx, r8
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not rdx
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xor rax, rax
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not rax
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div r8
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mov r9, rax
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xor rax, rax
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xor rbp, rbp
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align 16
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lp:
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mov r13, [rsi+r14*8-8]
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mov r12, r13
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neg rcx
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cmovnc r13, r15
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shr r13, cl
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neg rcx
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shl r12, cl
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mov r10, r12
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sar r10, 63
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add rax, r13
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sub rax, r10
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add rax, r11
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add r11, r13
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add r11, rbp
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mul r9
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mov r13, r11
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and r10, r8
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add r10, r12
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add rax, r10
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mov r10, r11
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adc r10, rdx
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not r10
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mov rax, r8
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mul r10
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sub r13, r8
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add rax, r12
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mov r11, r8
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adc rdx, r13
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and r11, rdx
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mov rbp, rax
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sub rdx, r10
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mov [rdi+r14*8-8], rdx
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dec r14
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jnz lp
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pop rbp
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pop r12
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pop r13
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pop r14
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pop r15
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add r11, rax
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shr r11, cl
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mov rax, r11
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ret
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end
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