169 lines
3.1 KiB
ActionScript
169 lines
3.1 KiB
ActionScript
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; mpn_divrem_euclidean_qr_2
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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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GLOBAL_FUNC mpn_divrem_euclidean_qr_2
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; rax MULTEMP
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; rbx qn
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; rcx dp
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; rdx MULTEMP
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; rdi qp
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; rsi xp
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; rbp i
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; r8 l
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; r9 h
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; r10 t[0],xh
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; r11
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; r12 t1[0]
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; r13 t1[1]
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; r14 qf
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; r15 q,mask,temp
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push rbx
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push rbp
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push r12
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push r13
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push r14
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push r15
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mov rbx, rdx
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dec rbx
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mov r9, 0
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mov rdx, [rcx+8]
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not rdx
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mov rax, -1
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div qword [rcx+8]
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mov rbp, rax
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mov r8, [rsi+rbx*8]
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dec rbx
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mov r10, [rsi+rbx*8]
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cmp r8, [rcx+8]
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jae L_j2
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mov rdx, r8
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mov r9, r8
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mov r10, [rsi+rbx*8]
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mov r8, r10
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mov r14, 0
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jmp L_j1
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L_j2:
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mov r14, 1
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mov rdx, r8
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sub rdx, [rcx+8]
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sub r10, [rcx]
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sbb rdx, 0
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jnc L_j3
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dec r14
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add r10, [rcx]
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adc rdx, [rcx+8]
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L_j3:
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mov r9, rdx
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mov r8, r10
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L_j1:
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dec rbx
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mov rax, r9
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js L_skiplp
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align 16
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L_lp:
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cmp rax, [rcx+8]
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je L_j4
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mov r9, rax
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bt r8, 63
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adc rax, 0
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mov r15, r8
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mov r13, 0
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sar r15, 63
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and r15, [rcx+8]
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add r15, r8
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mul rbp
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add rax, r15
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mov rax, [rcx]
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adc rdx, r9
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mov r10, rdx
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mul rdx
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mov r12, [rcx]
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add r12, rax
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adc r13, rdx
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mov rax, [rcx+8]
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not r10
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mul r10
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sub r9, [rcx+8]
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add rax, r8
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adc rdx, r9
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mov r9, rdx
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and r9, [rcx+8]
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; swapped r9,rax from here
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add rax, r9
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mov r15, rdx
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sub r15, r10
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and rdx, [rcx]
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sub r12, rdx
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sbb r13, 0
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mov r8, [rsi+rbx*8]
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sub r8, r12
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sbb rax, r13
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mov r10, [rcx]
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mov r11, [rcx+8]
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sbb r9, r9
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and r10, r9
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and r11, r9
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add r15, r9
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add r8, r10
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adc rax, r11
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adc r9, 0
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and r10, r9
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and r11, r9
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add r15, r9
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add r8, r10
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adc rax, r11
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L_j6:
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mov [rdi+rbx*8], r15
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dec rbx
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jns L_lp
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L_skiplp:
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mov [rsi+8], rax
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mov [rsi], r8
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mov rax, r14
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pop r15
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pop r14
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pop r13
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pop r12
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pop rbp
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pop rbx
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ret
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L_j4:
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mov r10, [rsi+rbx*8]
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mov r15, -1
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mov rdx, r8
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add r10, [rcx]
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adc rdx, rax
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sbb rax, rax
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sub rdx, [rcx]
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adc rax, 0
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jz L_j5
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dec r15
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add r10, [rcx]
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adc rdx, [rcx+8]
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L_j5:
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mov rax, rdx
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mov r8, r10
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jmp L_j6
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end
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