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fft2mmxc.s
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fft2mmxc.s
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; Copyright (c) <2012> <Leif Asbrink>
;
; Permission is hereby granted, free of charge, to any person
; obtaining a copy of this software and associated documentation
; files (the "Software"), to deal in the Software without restriction,
; including without limitation the rights to use, copy, modify,
; merge, publish, distribute, sublicense, and/or sell copies of
; the Software, and to permit persons to whom the Software is
; furnished to do so, subject to the following conditions:
;
; The above copyright notice and this permission notice shall be
; included in all copies or substantial portions of the Software.
;
; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
; OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
; NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
; HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
; WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
; FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
; OR OTHER DEALINGS IN THE SOFTWARE.
%ifdef OS_LINUX
extern fft2_short_int
extern fft2_size
extern fft2_mmxcosin
extern fft2_na
extern fft2_n
extern fft2_m2
extern fft2_inc
extern mailbox
global fft2_mmx_c2
global fft2_mmx_c1
%endif
%ifdef OS_WINDOWS
extern _fft2_short_int
extern _fft2_size
extern _fft2_mmxcosin
extern _fft2_na
extern _fft2_n
extern _fft2_m2
extern _fft2_inc
global _fft2_mmx_c2
global _fft2_mmx_c1
fft2_short_int equ _fft2_short_int
fft2_size equ _fft2_size
fft2_mmxcosin equ _fft2_mmxcosin
fft2_na equ _fft2_na
fft2_n equ _fft2_n
fft2_m2 equ _fft2_m2
fft2_inc equ _fft2_inc
%endif
%define TMP1 ebp-4
%define TMP2 ebp-8
%define TMP3 ebp-12
%define TMP4 ebp-16
%define LIMIT ebp-20
%define INCC ebp-24
section .text
fft2_mmx_c1
_fft2_mmx_c1
push ebx
push ecx
push edx
push esi
push edi
push ebp
mov ebp,[fft2_mmxcosin]
mov eax,0FFFFH
mov [TMP1],eax
mov [TMP2],eax
mov eax,1
mov [TMP3],eax
mov [TMP4],eax
movq mm7,[TMP2]
movq mm6,[TMP4]
xor eax,eax
mov [TMP1],eax
mov [TMP3],eax
dec eax
mov [TMP2],eax
mov eax,10001H
mov [TMP4],eax
movq mm5,[TMP2]
movq mm4,[TMP4]
test word [fft2_n],1
jz near dual_last_1
mov eax,[fft2_size]
sal eax,2
mov [LIMIT],eax
; Base of current transform.
;zxy=&fft2_short_int[2*ui.rx_channels*fft2_na*fft2_size];
mov eax,[fft2_size]
sal eax,2
imul eax,[fft2_na]
mov esi,[fft2_short_int]
add esi,eax
mov ecx,[fft2_size]
sal ecx,1
xor edi,edi
c1b:;
; ss1= fft2_tab[itab].sin;
; cs1= fft2_tab[itab].cos;
movq mm0,[ebp+edi] ;mm0 = cs1 -ss1 ss1 cs1
; x1=fft1_tmp[4*ia ];
; y1=fft1_tmp[4*ia+1];
mov eax,[esi+ecx]
mov [TMP1],eax
mov [TMP2],eax
;mm0 = c1 -s1 s1 c1
movq mm2,[TMP2] ;mm1 = y1 x1 y1 x1
; t1= c1*x1+s1*y1;
; t2= c1*y1-s1*x1;
pmaddwd mm2,mm0 ;mm2 = c1*y1-s1*x1 c1*x1+s1*y1
psrad mm2,16 ;mm2 = t2 t1
packssdw mm2,mm2 ;mm2 = t2 t1 t2 t1
; x0=fft1_tmp[4*ia ];
; y0=fft1_tmp[4*ia+1];
mov eax,[esi]
mov [TMP1],eax
mov [TMP2],eax
movq mm1,[TMP2] ;mm1 = y0 x0 y0 x0
psraw mm1,1
pxor mm2,mm5
paddsw mm2,mm4 ;mm2 = -t2 -t1 t2 t1
; zxy[ib ]=(x0-t1)/4;
; zxy[ib+1]=-(y0-t2)/4;
; zxy[ia ]=(x0+t1)/4;
; zxy[ia+1]=-(y0+t2)/4;
paddsw mm1,mm2
movq [TMP2],mm1
mov eax,[TMP2]
mov ebx,[TMP1]
neg ax
neg bx
mov [esi],ebx
mov [esi+ecx],eax
add edi,8
add esi,4
cmp edi,[LIMIT]
jb near c1b
emms
pop ebp
pop edi
pop esi
pop edx
pop ecx
pop ebx
ret
dual_last_1:
xor eax,eax
mov [TMP1],eax
mov [TMP3],eax
dec eax
mov [TMP2],eax
movq mm7,[TMP2]
movq mm6,[TMP3]
mov eax,[fft2_size]
sal eax,1
mov [LIMIT],eax
; Base of current transform.
;zxy=&fft2_short_int[2*ui.rx_channels*fft2_na*fft2_size];
mov eax,[fft2_size]
sal eax,2
imul eax,[fft2_na]
mov esi,[fft2_short_int]
add esi,eax
mov ecx,[fft2_size]
xor edi,edi
c1a:;
; ss1= fft2_tab[2*itab].sin;
; cs1= fft2_tab[2*itab].cos;
movq mm0,[ebp+2*edi] ;mm0 = cs1 -ss1 ss1 cs1
; ib=ia+m2;
; x1=zxy[ib ];
; y1=zxy[ib+1];
mov eax,[esi+ecx] ;ib
mov [TMP1],eax
mov [TMP2],eax
movq mm1,[TMP2] ;mm1 = y1 x1 y1 x1
; t1=cs1*x1+ss1*y1;
; t2=cs1*y1-ss1*x1;
pmaddwd mm1,mm0 ;mm1 = c1*y1-s1*x1 c1*x1+s1*y1
add esi,ecx
;mm1 = t2 t1
psrad mm1,16 ;mm1 = . t2 . t1
packssdw mm1,mm1 ;mm1 = t2 t1 t2 t1
pand mm1,mm7 ;mm1 = 0 0 t2 t1
; x3=zxy[id ];
; y3=zxy[id+1];
mov eax,[esi+2*ecx] ;id
mov [TMP1],eax
mov [TMP2],eax
movq mm2,[TMP2] ;mm2 = y3 x3 y3 x3
; t3=cs1*x3+ss1*y3;
; t4=cs1*y3-ss1*x3;
pmaddwd mm2,mm0 ;mm2 = c1*y3-s1*x3 c1*x3+s1*y3
sub esi,ecx
psrad mm2,16 ;mm2 = . t4 . t3
packssdw mm2,mm2 ;mm2 = t4 t3 t4 t3
pand mm2,mm6 ;mm2 = t4 t3 0 0
paddsw mm1,mm2 ;mm1 = t4 t3 t2 t1
; x0=zxy[ia ];
; y0=zxy[ia+1];
; x2=zxy[ic ];
; y2=zxy[ic+1];
mov eax,[esi] ;ia
mov [TMP2],eax
mov ebx,[esi+2*ecx] ;ic
mov [TMP1],ebx
movq mm0,[TMP2] ;mm0 = y2 x2 y0 x0
psraw mm0,1
movq mm2,mm0
; x4=x0+t1;
; y4=y0+t2;
; x5=x2+t3;
; y5=y2+t4;
;
; x6=x0-t1;
; y6=y0-t2;
; x7=x2-t3;
; y7=y2-t4;
paddsw mm0,mm1 ;mm0 = y5 x5 y4 x4
psubsw mm2,mm1 ;mm2 = y7 x7 y6 x6
; ss2= fft2_tab[itab].sin;
; cs2= fft2_tab[itab].cos;
movq mm1,[ebp+edi] ;mm1 = cs2 -ss2 ss2 cs2
; t5=cs2*x5+ss2*y5;
; t6=cs2*y5-ss2*x5;
movq mm3,mm0 ;mm3 = y5 x5 y4 x4
movq mm5,mm0 ;mm5 = y5 x5 y4 x4
psraw mm5,1
pand mm3,mm6 ;mm3 = y5 x5 0 0
psrlq mm0,32 ;mm0 = 0 0 y5 x5
paddsw mm0,mm3 ;mm0 = y5 x5 y5 x5
pmaddwd mm0,mm1 ;mm0 = t6 t5
movq mm4,mm5
psrad mm0,16 ;mm0 = t6 t5
packssdw mm0,mm0 ;mm1 = t6 t5 t6 t5
; zxy[ia ]=x4+t5;
; zxy[ia+1]=y4+t6;
; zxy[ic ]=x4-t5;
; zxy[ic+1]=y4-t6;
paddsw mm5,mm0
psubsw mm4,mm0
movq [TMP2],mm5
movq [TMP4],mm4
mov eax,[TMP2]
mov ebx,[TMP4]
neg ax
neg bx
mov [esi],eax
mov [esi+2*ecx],ebx
; t8=cs2*x7+ss2*y7;
; t7=cs2*y7-ss2*x7;
movq mm5,mm2 ;mm5 = y7 x7 y6 x6
movq mm4,mm2 ;mm4 = y7 x7 y6 x6
psraw mm4,1
pand mm5,mm6 ;mm5 = y7 x7 0 0
psrlq mm2,32 ;mm2 = 0 0 y7 x7
paddsw mm2,mm5 ;mm2 = y7 x7 y7 x7
pmaddwd mm2,mm1 ;mm2 = t7 t8
add esi,ecx
psrad mm2,16 ;mm2 = . t7 . t8
movq mm3,mm4 ;mm3 = y7 x7 y6 x6
movq mm1,mm2 ;mm1 = . t7 . t8
psrlq mm1,16 ;mm1 = 0 . t7 .
psrld mm1,16 ;mm1 = 0 0 0 t7
pslld mm2,16 ;mm2 = . . t8 0
psubsw mm1,mm2 ;mm1 = . . t7 -t8
; zxy[ib ]=x6+t7;
; zxy[ib+1]=y6-t8;
; zxy[id ]=x6-t7;
; zxy[id+1]=y6+t8;
paddsw mm4,mm1
psubsw mm3,mm1
movq [TMP2],mm4
movq [TMP4],mm3
mov eax,[TMP2]
mov ebx,[TMP4]
neg ax
neg bx
mov [esi],eax
mov [esi+2*ecx],ebx
sub esi,ecx
; itab+=inc;
; ia+=2;
; if(itab<siz_d4)goto xlp1;
add edi,8
add esi,4
cmp edi,[LIMIT]
jb near c1a
zz:
emms
pop ebp
pop edi
pop esi
pop edx
pop ecx
pop ebx
ret
fft2_mmx_c2
_fft2_mmx_c2
push ebx
push ecx
push edx
push esi
push edi
push ebp
mov ebp,[fft2_mmxcosin]
mov eax,0FFFFH
mov [TMP1],eax
mov [TMP2],eax
mov eax,1
mov [TMP3],eax
mov [TMP4],eax
test word [fft2_n],1
jz near dual_last_2
mov eax,[fft2_size]
sal eax,2
mov [LIMIT],eax
; Base of current transform.
;zxy=&fft2_short_int[2*ui.rx_channels*fft2_na*fft2_size];
mov eax,[fft2_size]
sal eax,3
imul eax,[fft2_na]
mov esi,[fft2_short_int]
add esi,eax
mov ecx,[fft2_size]
sal ecx,2
xor edi,edi
c2b:;
; ss1= fft2_tab[itab].sin;
; cs1= fft2_tab[itab].cos;
movq mm0,[ebp+edi] ;mm0 = cs1 -ss1 ss1 cs1
; x0=fft1_tmp[4*ia ];
; y0=fft1_tmp[4*ia+1];
; u0=fft1_tmp[4*ia+2];
; w0=fft1_tmp[4*ia+3];
; ia+=m1;
; x1=fft1_tmp[4*ia ];
; y1=fft1_tmp[4*ia+1];
; u1=fft1_tmp[4*ia+2];
; w1=fft1_tmp[4*ia+3];
;mm0 = c1 -s1 s1 c1
movq mm1,[esi] ;mm1 = w0 u0 y0 x0
movq mm2,[esi+ecx ] ;mm2 = w1 u1 y1 x1
movq mm4,mm2 ;mm4 = w1 u1 y1 x1
; t1= c1*x1+s1*y1;
; t2= c1*y1-s1*x1;
; r1= c1*u1+s1*w1;
; r2= c1*w1-s1*u1;
punpckldq mm2,mm2 ;mm2 = y1 x1 y1 x1
punpckhdq mm4,mm4 ;mm4 = w1 u1 w1 u1
pmaddwd mm2,mm0 ;mm2 = c1*y1-s1*x1 c1*x1+s1*y1
pmaddwd mm4,mm0 ;mm4 = c1*w1-s1*u1 c1*u1+s1*w1
psraw mm1,1
movq mm6,mm1 ;mm6 = w0 u0 y0 x0
psrad mm2,16 ;mm2 = t2 t1
psrad mm4,16 ;mm4 = r2 r1
packssdw mm2,mm4 ;mm2 = r2 r1 t2 t1
; zxy[ib ]=(x0-t1)/4;
; zxy[ib+1]=-(y0-t2)/4;
; zxy[ib+2]=(u0-r1)/4;
; zxy[ib+3]=-(w0-r2)/4;
; zxy[ia ]=(x0+t1)/4;
; zxy[ia+1]=-(y0+t2)/4;
; zxy[ia+2]=(u0+r1)/4;
; zxy[ia+3]=-(w0+r2)/4;
paddsw mm1,mm2
psubsw mm6,mm2
pxor mm1,[TMP2]
paddsw mm1,[TMP4]
pxor mm6,[TMP2]
paddsw mm6,[TMP4]
movq [esi],mm1
movq [esi+ecx],mm6
add edi,8
add esi,8
cmp edi,[LIMIT]
jb near c2b
emms
pop ebp
pop edi
pop esi
pop edx
pop ecx
pop ebx
ret
dual_last_2:
mov eax,[fft2_size]
sal eax,1
mov [LIMIT],eax
; Base of current transform.
;zxy=&fft2_short_int[2*ui.rx_channels*fft2_na*fft2_size];
mov eax,[fft2_size]
sal eax,3
imul eax,[fft2_na]
mov esi,[fft2_short_int]
add esi,eax
mov ecx,[fft2_size]
sal ecx,1
xor edi,edi
c2a:;
;jmp c2a
; ss1= fft2_tab[2*itab].sin;
; cs1= fft2_tab[2*itab].cos;
movq mm0,[ebp+2*edi] ;mm0 = cs1 -ss1 ss1 cs1
; x0=fft1_tmp[4*ia ];
; y0=fft1_tmp[4*ia+1];
; u0=fft1_tmp[4*ia+2];
; w0=fft1_tmp[4*ia+3];
; ia+=m1;
; x1=fft1_tmp[4*ia ];
; y1=fft1_tmp[4*ia+1];
; u1=fft1_tmp[4*ia+2];
; w1=fft1_tmp[4*ia+3];
;mm0 = c1 -s1 s1 c1
movq mm1,[esi] ;mm1 = w0 u0 y0 x0
movq mm2,[esi+ecx ] ;mm2 = w1 u1 y1 x1
; x2=zxy[ic ];
; y2=zxy[ic+1];
; u2=zxy[ic+2];
; w2=zxy[ic+3];
movq mm3,[esi+2*ecx] ;mm3 = w2 u2 y2 x2
add esi,ecx
movq mm4,mm2 ;mm4 = w1 u1 y1 x1
; t1= c1*x1+s1*y1;
; t2= c1*y1-s1*x1;
; r1= c1*u1+s1*w1;
; r2= c1*w1-s1*u1;
punpckldq mm2,mm2 ;mm2 = y1 x1 y1 x1
punpckhdq mm4,mm4 ;mm4 = w1 u1 w1 u1
pmaddwd mm2,mm0 ;mm2 = c1*y1-s1*x1 c1*x1+s1*y1
pmaddwd mm4,mm0 ;mm4 = c1*w1-s1*u1 c1*u1+s1*w1
psraw mm1,1
movq mm6,mm1 ;mm6 = w0 u0 y0 x0
psrad mm2,16 ;mm2 = t2 t1
psrad mm4,16 ;mm4 = r2 r1
packssdw mm2,mm4 ;mm2 = r2 r1 t2 t1
; x3=zxy[id ];
; y3=zxy[id+1];
; u3=zxy[id+2];
; w3=zxy[id+3];
movq mm7,[esi+2*ecx] ;mm7 = w3 u3 y3 x3
; x4=x0+t1;
; y4=y0+t2;
; u4=u0+r1;
; w4=w0+r2;
;
; x6=x0-t1;
; y6=y0-t2;
; u6=u0-r1;
; w6=w0-r2;
;mm0 = c1 -s1 s1 c1
;mm1 = w0 u0 y0 x0
;mm2 = r2 r1 t2 t1
;mm3 = w2 u2 y2 x2
;mm4 = ?
;mm5 = ?
;mm6 = w0 u0 y0 x0
;mm7 = w3 u3 y3 x3
paddsw mm1,mm2 ;mm1 = w4 u4 y4 x4
psubsw mm6,mm2 ;mm6 = w6 u6 y6 x6
; t3=c1*x3+s1*y3;
; t4=c1*y3-s1*x3;
; r3=c1*u3+s1*w3;
; r4=c1*w3-s1*u3;
;mm0 = c1 -s1 s1 c1
movq mm5,mm7 ;mm5 = w3 u3 y3 x3
punpckldq mm7,mm7 ;mm7 = y3 x3 y3 x3
punpckhdq mm5,mm5 ;mm5 = w3 u3 w3 u3
pmaddwd mm7,mm0 ;mm7 = c1*y3-s1*x3 c1*x3+s1*y3
pmaddwd mm5,mm0 ;mm5 = c1*w3-s1*u3 c1*u3+s1*w3
;mm7 = t4 t3
;mm5 = r4 r3
sub esi,ecx
psrad mm7,16 ;mm7 = t4 t3
psrad mm5,16 ;mm5 = r4 r3
packssdw mm7,mm5 ;mm7 = r4 r3 t4 t3
; x5=x2+t3;
; y5=y2+t4;
; u5=u2+r3;
; w5=w2+r4;
;
; x7=x2-t3;
; y7=y2-t4;
; u7=u2-r3;
; w7=w2-r4;
;mm0 = c1 -s1 s1 c1
;mm1 = w4 u4 y4 x4
;mm2 = ?
;mm3 = w2 u2 y2 x2
;mm4 = ?
;mm5 = r4 r3
;mm6 = w6 u6 y6 x6
;mm7 = t4 t3
psraw mm3,1
movq mm5,mm3 ;mm5 = w2 u2 y2 x2
paddsw mm3,mm7 ;mm3 = w5 u5 y5 x5
psubsw mm5,mm7 ;mm5 = w7 u7 y7 x7
;mm0 = c1 -s1 s1 c1
;mm1 = w4 u4 y4 x4
;mm2 = ?
;mm3 = w5 u5 y5 x5
;mm4 = ?
;mm5 = w7 u7 y7 x7
;mm6 = w6 u6 y6 x6
;mm7 = ?
movq mm0,[ebp+edi] ;mm0 = c2 -s2 s2 c2
; t5=c2*x5+s2*y5;
; t6=c2*y5-s2*x5;
; r5=c2*u5+s2*w5;
; r6=c2*w5-s2*u5;
movq mm2,mm3 ;mm2 = w5 u5 y5 x5
punpckldq mm3,mm3 ;mm3 = y5 x5 y5 x5
punpckhdq mm2,mm2 ;mm2 = w5 u5 w5 u5
pmaddwd mm3,mm0 ;mm3 = c2*y5-s2*x5 c2*x5+s2*y5
pmaddwd mm2,mm0 ;mm2 = c2*w5-s2*u5 c2*u5+s2*w5
movq mm4,mm3 ;mm3 = t6 t5
movq mm7,mm2 ;mm2 = r6 r5
psrad mm3,16 ;mm3 = t6 t5
psrad mm2,16 ;mm2 = r6 r5
packssdw mm3,mm2 ;mm3 = r6 r5 t6 t5
psraw mm1,1
movq mm7,mm1 ;mm7 = w4 u4 y4 x4
paddsw mm1,mm3 ;mm1 = w4+r6 u4+r5 y4+t6 x4+t5
psubsw mm7,mm3 ;mm7 = w4-r6 u4-r5 y4-t6 x4-t5
pxor mm1,[TMP2]
paddsw mm1,[TMP4]
pxor mm7,[TMP2]
paddsw mm7,[TMP4]
; zxy[ia ]=(x4+t5);
; zxy[ia+1]=-(y4+t6);
; zxy[ia+2]=(u4+r5);
; zxy[ia+3]=-(w4+r6);
; zxy[ic ]=(x4-t5);
; zxy[ic+1]=-(y4-t6);
; zxy[ic+2]=(u4-r5);
; zxy[ic+3]=-(w4-r6);
movq [esi],mm1
movq [esi+2*ecx],mm7
;mm0 = c1 -s1 s1 c1
;mm1 = ?
;mm2 = ?
;mm3 = ?
;mm4 = ?
;mm5 = w7 u7 y7 x7
;mm6 = w6 u6 y6 x6
;mm7 = ?
; t7=cs2*y7-ss2*x7;
; t8=cs2*x7+ss2*y7;
; r7=cs2*w7-ss2*u7;
; r8=cs2*u7+ss2*w7;
; zxy[ib ]=(x6+t7);
; zxy[ib+1]=-(y6-t8);
; zxy[ib+2]=(u6+r7);
; zxy[ib+3]=-(w6-r8);
; zxy[id ]=(x6-t7);
; zxy[id+1]=-(y6+t8);
; zxy[id+2]=(u6-r7);
; zxy[id+3]=-(w6+r8);
movq mm2,mm5 ;mm2 = w7 u7 y7 x7
punpckldq mm5,mm5 ;mm5 = y7 x7 y7 x7
punpckhdq mm2,mm2 ;mm2 = w7 u7 w7 u7
pmaddwd mm5,mm0 ;mm5 = c2*y7-s2*x7 c2*x7+s2*y7
pmaddwd mm2,mm0 ;mm2 = c2*w7-s2*u7 c2*u7+s2*w7
;mm5 = t7 t8
;mm2 = r7 r8
psrad mm5,16 ;mm5 = t7 t8
psrad mm2,16 ;mm2 = r7 r8
movq mm4,mm5
movq mm3,mm2
pxor mm0,mm0
punpckldq mm5,mm0 ;mm5 = t8
punpckldq mm2,mm0 ;mm2 = r8
punpckhdq mm4,mm0 ;mm4 = t7
punpckhdq mm3,mm0 ;mm3 = r7
packssdw mm4,mm3 ;mm4 = r7 t7
packssdw mm5,mm2 ;mm5 = r8 t8
psllq mm5,16 ;mm5 = r8 t8
psubsw mm4,mm5 ;mm4 = -r8 r7 -t8 t7
psraw mm6,1
movq mm7,mm6 ;mm7 = w6 u6 y6 x6
paddsw mm6,mm4
psubsw mm7,mm4
add esi,ecx
pxor mm6,[TMP2]
paddsw mm6,[TMP4]
pxor mm7,[TMP2]
paddsw mm7,[TMP4]
movq [esi],mm6
movq [esi+2*ecx],mm7
sub esi,ecx
; itab+=inc;
; ia+=2;
; if(itab<siz_d4)goto xlp1;
add edi,8
add esi,8
cmp edi,[LIMIT]
jb near c2a
emms
pop ebp
pop edi
pop esi
pop edx
pop ecx
pop ebx
ret