mpir/mpn/x86_64w/k8/sub_err1_n.asm
gladman 7d6cc1e587 1. remove single epilogue restriction in Windows assembler code
2. tidy up format of Windows assembler code
2010-07-22 11:33:16 +00:00

148 lines
3.7 KiB
NASM

; Copyright 2009 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.
;
; mp_limb_t mpn_sub_err1(mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_ptr, mp_size_t, mp_limb_t)
; rax rdi rsi rdx rcx r8 r9 8(rsp)
; rax rcx rdx r8 r9 [rsp+40] [rsp+48] [rsp+56]
%include "..\yasm_mac.inc"
CPU Athlon64
BITS 64
%define reg_save_list rbx, rsi, rdi, rbp, r12, r13, r14, r15
FRAME_PROC mpn_sub_err1_n, 0, reg_save_list
mov [rsp+stack_use+32], r9
mov r9, qword [rsp+stack_use+48]
mov r10, [rsp++stack_use+56]
lea rdi, [rcx+r9*8-24]
lea rsi, [rdx+r9*8-24]
lea rdx, [r8+r9*8-24]
mov r8, [rsp+stack_use+40]
mov r11, 3
shl r10, 63
lea r8, [r8+r9*8]
sub r11, r9
mov r9, 0
mov rax, 0
mov rbx, 0
jnc .2
xalign 16
.1: mov r12, [rsi+r11*8]
mov r13, [rsi+r11*8+8]
mov r14, [rsi+r11*8+16]
mov r15, [rsi+r11*8+24]
mov rbp, 0
shl r10, 1
sbb r12, [rdx+r11*8]
cmovc rax, [r8-8]
sbb r13, [rdx+r11*8+8]
cmovc rbx, [r8-16]
mov rcx, 0
sbb r14, [rdx+r11*8+16]
cmovc rcx, [r8-24]
sbb r15, [rdx+r11*8+24]
cmovc rbp, [r8-32]
rcr r10, 1
add r9, rax
adc r10, 0
add r9, rbx
adc r10, 0
add r9, rcx
mov rax, 0
adc r10, 0
lea r8, [r8-32]
add r9, rbp
adc r10, 0
mov [rdi+r11*8], r12
mov [rdi+r11*8+8], r13
mov [rdi+r11*8+16], r14
mov [rdi+r11*8+24], r15
mov rbx, 0
add r11, 4
jnc .1
.2: cmp r11, 2
ja .6
je .5
jp .4
.3: mov r12, [rsi+r11*8]
mov r13, [rsi+r11*8+8]
mov r14, [rsi+r11*8+16]
shl r10, 1
sbb r12, [rdx+r11*8]
cmovc rax, [r8-8]
sbb r13, [rdx+r11*8+8]
cmovc rbx, [r8-16]
mov rcx, 0
sbb r14, [rdx+r11*8+16]
cmovc rcx, [r8-24]
rcr r10, 1
add r9, rax
adc r10, 0
add r9, rbx
adc r10, 0
add r9, rcx
adc r10, 0
mov [rdi+r11*8], r12
mov [rdi+r11*8+8], r13
mov [rdi+r11*8+16], r14
jmp .6
xalign 16
.4: mov r12, [rsi+r11*8]
mov r13, [rsi+r11*8+8]
shl r10, 1
sbb r12, [rdx+r11*8]
cmovc rax, [r8-8]
sbb r13, [rdx+r11*8+8]
cmovc rbx, [r8-16]
rcr r10, 1
add r9, rax
adc r10, 0
add r9, rbx
adc r10, 0
mov [rdi+r11*8], r12
mov [rdi+r11*8+8], r13
jmp .6
xalign 16
.5: mov r12, [rsi+r11*8]
shl r10, 1
sbb r12, [rdx+r11*8]
cmovc rax, [r8-8]
rcr r10, 1
add r9, rax
adc r10, 0
mov [rdi+r11*8], r12
.6: mov rcx, [rsp+stack_use+32]
mov [rcx], r9
btr r10, 63
mov [rcx+8], r10
mov rax, 0
adc rax, 0
END_PROC reg_save_list
end