152 lines
3.3 KiB
NASM
152 lines
3.3 KiB
NASM
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; Copyright 2008 Jason Moxham
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;
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; This file is part of the MPIR Library.
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;
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; Windows Conversion Copyright 2008 Brian Gladman
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;
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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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; mp_limb_t mpn_divrem_hensel_qr_1_2(mp_ptr, mp_ptr, mp_size_t, mp_limb_t)
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; rax rdi rsi rdx rcx
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; rax rcx rdx r8d r9
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%include "..\yasm_mac.inc"
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%define reg_save_list rsi, rdi, r12, r13, r14
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CPU Athlon64
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BITS 64
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FRAME_PROC mpn_divrem_hensel_qr_1_2, 0, reg_save_list
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movsxd rax, r8d
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lea rdi, [rcx+rax*8-8]
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lea rsi, [rdx+rax*8-8]
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mov rcx, r9
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mov rdx, r9
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mov r9, 1
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sub r9, rax
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mov rax, rdx
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imul edx, ecx
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mov r11, 2
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sub r11, rdx
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imul r11d, eax
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mov rax, r11
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imul r11d, ecx
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mov rdx, 2
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sub rdx, r11
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imul edx, eax
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mov rax, rdx
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imul edx, ecx
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mov r11, 2
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sub r11, rdx
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imul r11d, eax
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mov rax, r11
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imul r11d, ecx
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mov rdx, 2
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sub rdx, r11
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imul edx, eax
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mov rax, rdx
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imul rdx, rcx
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mov r11, 2
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sub r11, rdx
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imul r11, rax
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mov rax, r11
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mov r12, r11
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mul rcx
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neg rdx
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imul r12, rdx
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mov r13, r11
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mov r14, r12
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mov r11, [rsi+r9*8]
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mov r12, [rsi+r9*8+8]
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mov r10, 0
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add r9, 2
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jc L_skiplp
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xalign 16
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L_lp:
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mov r8, r12
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mov rax, r13
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mul r11
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mov [rdi+r9*8-16], rax
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imul r11, r14
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imul r12, r13
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add rdx, r11
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add rdx, r12
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mov r11, [rsi+r9*8]
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mov r12, [rsi+r9*8+8]
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mov [rdi+r9*8-8], rdx
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mov rax, rcx
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mul rdx
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add r10, r10
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sbb r11, 0
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sbb r12, 0
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sbb r10, r10
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cmp r8, rax
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sbb r11, rdx
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sbb r12, 0
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sbb r10, 0
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add r9, 2
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jnc L_lp
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L_skiplp:
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mov r8, r12
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mov rax, r13
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mul r11
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mov [rdi+r9*8-16], rax
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imul r11, r14
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imul r12, r13
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add rdx, r11
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add rdx, r12
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cmp r9, 0
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jne L_case0
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L_case1:
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mov r11, [rsi+r9*8]
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mov [rdi+r9*8-8], rdx
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mov rax, rcx
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mul rdx
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add r10, r10
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sbb r11, 0
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sbb r10, r10
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cmp r8, rax
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sbb r11, rdx
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sbb r10, 0
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mov rax, r11
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imul rax, r13
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mov [rdi+r9*8], rax
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mul rcx
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add r10, r10
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mov rax, 0
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adc rax, rdx
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jmp L_xit
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L_case0:
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mov [rdi+r9*8-8], rdx
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mov rax, rcx
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mul rdx
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cmp r8, rax
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mov rax, 0
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adc rax, rdx
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sub rax, r10
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L_xit:
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END_PROC reg_save_list
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end
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