455 lines
8.2 KiB
NASM
455 lines
8.2 KiB
NASM
;
|
|
; AMD64 mpn_mul_basecase -- multiply two mpn numbers.
|
|
; Version 1.0.5.
|
|
;
|
|
; 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.
|
|
;
|
|
; Calling interface:
|
|
;
|
|
; l1 = r8d , l2 = dword [rsp+0x28] ; rcx[l1 + l2] = rdx[l1] * r9[l2]
|
|
;
|
|
; void __gmpn_mul_basecase(
|
|
; mp_ptr rp, rcx
|
|
; mp_srcptr xp, rdx
|
|
; mp_size_t xn, r8
|
|
; mp_srcptr yp, r9
|
|
; mp_size_t yn [rsp+0x28] as a *** 32-bit *** word
|
|
; )
|
|
;
|
|
; Multiply xp[xn] by yp[yn] and write the result to rp[un+vn] with xn >= yn on
|
|
; entry.
|
|
;
|
|
; This is an SEH frame function with a leaf prologue
|
|
|
|
%include "..\yasm_mac.inc"
|
|
|
|
%define reg_save_list rbx, rsi, rdi, r12, r13, r14
|
|
|
|
BITS 64
|
|
|
|
%macro mulloop 1
|
|
|
|
alignb 16, nop
|
|
%%1:
|
|
mov r10, 0
|
|
mul r13
|
|
mov [rdi+r11*8], r12
|
|
add r9, rax
|
|
db 0x26
|
|
adc r10, rdx
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
mov [rdi+r11*8+8], r9
|
|
add r10, rax
|
|
mov ebx, 0
|
|
adc rbx, rdx
|
|
mov rax, [rsi+r11*8+24]
|
|
mov r12, 0
|
|
mov r9, 0
|
|
mul r13
|
|
mov [rdi+r11*8+16], r10
|
|
db 0x26
|
|
add rbx, rax
|
|
db 0x26
|
|
adc r12, rdx
|
|
mov rax, [rsi+r11*8+32]
|
|
mul r13
|
|
mov [rdi+r11*8+24], rbx
|
|
db 0x26
|
|
add r12, rax
|
|
db 0x26
|
|
adc r9, rdx
|
|
add r11, 4
|
|
mov rax, [rsi+r11*8+8]
|
|
jnc %%1
|
|
|
|
%endmacro
|
|
|
|
%macro mulnext0 0
|
|
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
mov [rdi+r11*8+8], r9
|
|
add r10, rax
|
|
mov ebx, 0
|
|
adc rbx, rdx
|
|
mov rax, [rsi+r11*8+24]
|
|
mov r12d, 0
|
|
mul r13
|
|
mov [rdi+r11*8+16], r10
|
|
add rbx, rax
|
|
adc r12, rdx
|
|
mov rax, [rsi+r11*8+32]
|
|
mul r13
|
|
mov [rdi+r11*8+24], rbx
|
|
add r12, rax
|
|
adc rdx, 0
|
|
mov [rdi+r11*8+32], r12
|
|
mov [rdi+r11*8+40], rdx
|
|
inc r8
|
|
mov rax, [rsi+r14*8]
|
|
mov r11, r14
|
|
%endmacro
|
|
|
|
%macro mulnext1 0
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
mov [rdi+r11*8+8], r9
|
|
add r10, rax
|
|
mov r12d, 0
|
|
adc r12, rdx
|
|
mov rax, [rsi+r11*8+24]
|
|
mul r13
|
|
mov [rdi+r11*8+16], r10
|
|
add r12, rax
|
|
adc rdx, 0
|
|
mov [rdi+r11*8+24], r12
|
|
mov [rdi+r11*8+32], rdx
|
|
inc r8
|
|
lea rdi, [rdi+8]
|
|
|
|
%endmacro
|
|
|
|
%macro mulnext2 0
|
|
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
mov [rdi+r11*8+8], r9
|
|
add r10, rax
|
|
mov ebx, 0
|
|
adc rbx, rdx
|
|
mov [rdi+r11*8+16], r10
|
|
mov [rdi+r11*8+24], rbx
|
|
inc r8
|
|
mov rax, [rsi+r14*8]
|
|
mov r11, r14
|
|
|
|
%endmacro
|
|
|
|
%macro mulnext3 0
|
|
|
|
mov [rdi+r11*8+8], r9
|
|
mov [rdi+r11*8+16], r10
|
|
inc r8
|
|
lea rdi, [rdi+8]
|
|
|
|
%endmacro
|
|
|
|
; changes from standard addmul
|
|
; change r8 to r12 and rcx to r13
|
|
; reemove ret and write last limb
|
|
|
|
%macro addmulloop 1
|
|
alignb 16, nop
|
|
%%1:
|
|
mov r10, 0
|
|
mul r13
|
|
add [rdi+r11*8], r12
|
|
adc r9, rax
|
|
db 0x26
|
|
adc r10, rdx
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
add [rdi+r11*8+8], r9
|
|
adc r10, rax
|
|
mov ebx, 0
|
|
adc rbx, rdx
|
|
mov rax, [rsi+r11*8+24]
|
|
mov r12, 0
|
|
mov r9, 0
|
|
mul r13
|
|
add [rdi+r11*8+16], r10
|
|
db 0x26
|
|
adc rbx, rax
|
|
db 0x26
|
|
adc r12, rdx
|
|
mov rax, [rsi+r11*8+32]
|
|
mul r13
|
|
add [rdi+r11*8+24], rbx
|
|
db 0x26
|
|
adc r12, rax
|
|
db 0x26
|
|
adc r9, rdx
|
|
add r11, 4
|
|
mov rax, [rsi+r11*8+8]
|
|
jnc %%1
|
|
|
|
%endmacro
|
|
|
|
%macro addmulpro0 0
|
|
|
|
; mov (%rsi,%r14,8),%rax
|
|
mov r13, [rcx+r8*8]
|
|
lea rdi, [rdi+8]
|
|
; mov %r14,%r11
|
|
mul r13
|
|
mov r12, rax
|
|
mov rax, [rsi+r14*8+8]
|
|
mov r9, rdx
|
|
cmp r14, 0
|
|
|
|
%endmacro
|
|
|
|
%macro addmulnext0 0
|
|
mov r10d, 0
|
|
mul r13
|
|
add [rdi+r11*8], r12
|
|
adc r9, rax
|
|
adc r10, rdx
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
add [rdi+r11*8+8], r9
|
|
adc r10, rax
|
|
mov ebx, 0
|
|
adc rbx, rdx
|
|
mov rax, [rsi+r11*8+24]
|
|
mov r12d, 0
|
|
mul r13
|
|
add [rdi+r11*8+16], r10
|
|
adc rbx, rax
|
|
adc r12, rdx
|
|
mov rax, [rsi+r11*8+32]
|
|
mul r13
|
|
add [rdi+r11*8+24], rbx
|
|
adc r12, rax
|
|
adc rdx, 0
|
|
add [rdi+r11*8+32], r12
|
|
mov rax, [rsi+r14*8]
|
|
adc rdx, 0
|
|
inc r8
|
|
mov [rdi+r11*8+40], rdx
|
|
mov r11, r14
|
|
; lea 8(%rdi),%rdi
|
|
|
|
%endmacro
|
|
|
|
%macro addmulpro1 0
|
|
|
|
mov rax, [rsi+r14*8]
|
|
mov r13, [rcx+r8*8]
|
|
mov r11, r14
|
|
mul r13
|
|
mov r12, rax
|
|
mov rax, [rsi+r14*8+8]
|
|
mov r9, rdx
|
|
cmp r14, 0
|
|
|
|
%endmacro
|
|
|
|
%macro addmulnext1 0
|
|
|
|
mov r10d, 0
|
|
mul r13
|
|
add [rdi+r11*8], r12
|
|
adc r9, rax
|
|
adc r10, rdx
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
add [rdi+r11*8+8], r9
|
|
adc r10, rax
|
|
mov r12d, 0
|
|
adc r12, rdx
|
|
mov rax, [rsi+r11*8+24]
|
|
mul r13
|
|
add [rdi+r11*8+16], r10
|
|
adc r12, rax
|
|
adc rdx, 0
|
|
add [rdi+r11*8+24], r12
|
|
adc rdx, 0
|
|
mov [rdi+r11*8+32], rdx
|
|
inc r8
|
|
lea rdi, [rdi+8]
|
|
|
|
%endmacro
|
|
|
|
%macro addmulpro2 0
|
|
|
|
mov r13, [rcx+r8*8]
|
|
lea rdi, [rdi+8]
|
|
mul r13
|
|
mov r12, rax
|
|
mov rax, [rsi+r14*8+8]
|
|
mov r9, rdx
|
|
cmp r14, 0
|
|
|
|
%endmacro
|
|
|
|
%macro addmulnext2 0
|
|
|
|
mov r10d, 0
|
|
mul r13
|
|
add [rdi+r11*8], r12
|
|
adc r9, rax
|
|
adc r10, rdx
|
|
mov rax, [rsi+r11*8+16]
|
|
mul r13
|
|
mov ebx, 0
|
|
add [rdi+r11*8+8], r9
|
|
adc r10, rax
|
|
adc rbx, rdx
|
|
mov rax, [rsi+r14*8]
|
|
add [rdi+r11*8+16], r10
|
|
adc rbx, 0
|
|
mov [rdi+r11*8+24], rbx
|
|
inc r8
|
|
mov r11, r14
|
|
|
|
%endmacro
|
|
|
|
%macro addmulpro3 0
|
|
|
|
mov rax, [rsi+r14*8]
|
|
mov r13, [rcx+r8*8]
|
|
mov r11, r14
|
|
mul r13
|
|
mov r12, rax
|
|
mov rax, [rsi+r14*8+8]
|
|
mov r9, rdx
|
|
cmp r14, 0
|
|
|
|
%endmacro
|
|
|
|
%macro addmulnext3 0
|
|
mul r13
|
|
add [rdi+r11*8], r12
|
|
adc r9, rax
|
|
mov r10d, 0
|
|
adc r10, rdx
|
|
add [rdi+r11*8+8], r9
|
|
adc r10, 0
|
|
mov [rdi+r11*8+16], r10
|
|
inc r8
|
|
lea rdi, [rdi+8]
|
|
|
|
%endmacro
|
|
|
|
%macro mpn_muladdmul_1_int 1
|
|
mulnext%1
|
|
jz %%3
|
|
alignb 16, nop
|
|
%%1:
|
|
addmulpro%1
|
|
jge %%2
|
|
addmulloop %1
|
|
%%2:
|
|
addmulnext%1
|
|
jnz %%1
|
|
%%3:
|
|
|
|
%endmacro
|
|
|
|
LEAF_PROC mpn_mul_basecase
|
|
cmp r8d, 2
|
|
jz two
|
|
jb one
|
|
|
|
FRAME_PROC mul_m_by_n, 0, reg_save_list
|
|
mov rdi, rcx
|
|
mov rsi, rdx
|
|
movsxd rdx, r8d
|
|
mov rcx, r9
|
|
movsxd r8, dword [rsp + stack_use + 40]
|
|
|
|
mov r14, 5
|
|
sub r14, rdx
|
|
lea rdi, [rdi+rdx*8-40]
|
|
lea rcx, [rcx+r8*8]
|
|
neg r8
|
|
lea rsi, [rsi+rdx*8-40]
|
|
mov rax, [rsi+r14*8]
|
|
mov r13, [rcx+r8*8]
|
|
mov r11, r14
|
|
mul r13
|
|
mov r12, rax
|
|
mov rax, [rsi+r14*8+8]
|
|
mov r9, rdx
|
|
cmp r14, 0
|
|
jge mulskiploop
|
|
mulloop 1
|
|
mulskiploop:
|
|
mov r10d, 0
|
|
mul r13
|
|
mov [rdi+r11*8], r12
|
|
add r9, rax
|
|
adc r10, rdx
|
|
cmp r11, 2
|
|
ja case3
|
|
jz case2
|
|
jp case1
|
|
case0:
|
|
mpn_muladdmul_1_int 0
|
|
jmp xit
|
|
|
|
alignb 16, nop
|
|
case1:
|
|
mpn_muladdmul_1_int 1
|
|
jmp xit
|
|
|
|
alignb 16, nop
|
|
case2:
|
|
mpn_muladdmul_1_int 2
|
|
jmp xit
|
|
|
|
alignb 16, nop
|
|
case3:
|
|
mpn_muladdmul_1_int 3
|
|
xit:
|
|
END_PROC reg_save_list
|
|
|
|
alignb 16, nop
|
|
one:mov rax, [rdx]
|
|
mul qword [r9]
|
|
mov [rcx], rax
|
|
mov [rcx+8], rdx
|
|
ret
|
|
|
|
alignb 16, nop
|
|
two:mov r10, rdx
|
|
mov r11, [r9]
|
|
mov rax, [r10]
|
|
mul r11
|
|
mov [rcx], rax
|
|
mov rax, [r10+8]
|
|
mov r8, rdx
|
|
mul r11
|
|
add r8, rax
|
|
adc rdx, 0
|
|
mov [rcx+8], r8
|
|
mov [rcx+16], rdx
|
|
cmp dword [rsp+0x28], 2
|
|
jz twobytwo
|
|
ret
|
|
twobytwo:
|
|
mov r8d, 0
|
|
mov r11, [r9+8]
|
|
mov rax, [r10]
|
|
mul r11
|
|
add [rcx+8], rax
|
|
mov rax, [r10+8]
|
|
adc r8, rdx
|
|
mul r11
|
|
add r8, rax
|
|
adc rdx, 0
|
|
add [rcx+16], r8
|
|
adc rdx, 0
|
|
mov [rcx+24], rdx
|
|
ret
|
|
|
|
end
|