mpir/mpn/x86_64w/k8/sumdiff_n.asm
gladman 9bf78f0866 1. Update Windows k10 build to match Linux
2. Remove the now redundant 32 to 64 register mapping for mp_size_t inputs in Windows assembler
2010-07-02 11:52:24 +00:00

107 lines
2.9 KiB
NASM

; Version 1.0.4
;
; Copyright 2008 Jason Moxham
;
; Windows Conversion Copyright 2008 Brian Gladman
;
; This file is part of the MPIR Library.
;
; The MPIR Library is free software; you can redistribute it and/or modify
; it under the terms of the GNU Lesser General Public License as published
; by the Free Software Foundation; either version 2.1 of the License, or (at
; your option) any later version.
; The MPIR Library is distributed in the hope that it will be useful, but
; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
; License for more details.
; You should have received a copy of the GNU Lesser General Public License
; along with the MPIR Library; see the file COPYING.LIB. If not, write
; to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
; Boston, MA 02110-1301, USA.
;
; rcx[r10] = r8[r10] + r9[r10]
; rdx[r10] = r8[r10] - r9[r10]
;
; return 2 * add_carry + sub_borrow
;
; mp_limb_t mpn_sumdiff_n(mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_size_t)
; rax rdi rsi rdx rcx r8
; rax rcx rdx r8 r9 [rsp+40]
%include "..\yasm_mac.inc"
%define reg_save_list rsi, rdi, r12, r13, r14, r15, rbx, rbp
CPU Athlon64
BITS 64
FRAME_PROC mpn_sumdiff_n, 0, reg_save_list
mov r10, qword [rsp+stack_use+40]
lea rdx, [rdx+r10*8]
lea r8, [r8+r10*8]
lea rcx, [rcx+r10*8]
lea r9, [r9+r10*8]
neg r10
xor r12, r12
xor r11, r11
test r10, 3
jz .2
.1:
mov rax, [r8+r10*8]
mov r13, rax
add r12, 1
adc rax, [r9+r10*8]
sbb r12, r12
add r11, 1
sbb r13, [r9+r10*8]
sbb r11, r11
mov [rcx+r10*8], rax
mov [rdx+r10*8], r13
inc r10
test r10, 3
jnz .1
.2:
cmp r10, 0
jz .4
xalign 16
.3:
mov rax, [r8+r10*8]
mov rsi, [r8+r10*8+8]
mov rdi, [r8+r10*8+16]
mov rbp, [r8+r10*8+24]
mov r13, rax
mov r14, rsi
mov r15, rdi
mov rbx, rbp
add r12, 1
adc rax, [r9+r10*8]
adc rsi, [r9+r10*8+8]
adc rdi, [r9+r10*8+16]
adc rbp, [r9+r10*8+24]
sbb r12, r12
add r11, 1
sbb r13, [r9+r10*8]
sbb r14, [r9+r10*8+8]
sbb r15, [r9+r10*8+16]
sbb rbx, [r9+r10*8+24]
sbb r11, r11
mov [rcx+r10*8], rax
mov [rcx+r10*8+8], rsi
mov [rcx+r10*8+16], rdi
mov [rcx+r10*8+24], rbp
mov [rdx+r10*8], r13
mov [rdx+r10*8+8], r14
mov [rdx+r10*8+16], r15
mov [rdx+r10*8+24], rbx
add r10, 4
jnz .3
.4:
lea rax, [r11+r12*2]
neg rax
END_PROC reg_save_list
end