1
0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-02 03:06:28 +02:00
FFmpeg/libavcodec/bfin/pixels_bfin.S
Marc Hoffman 67fd620c01 bfin dsputils, basic pixel operations sads, diffs, motion compensation
and standard IEEE 8x8 block transforms
patch by Marc Hoffman, mmh pleasantst com

Originally committed as revision 8594 to svn://svn.ffmpeg.org/ffmpeg/trunk
2007-04-01 22:28:45 +00:00

724 lines
23 KiB
ArmAsm

/*
* Blackfin Pixel Operations
* Copyright (C) 2007 Marc Hoffman <marc.hoffman@analog.com>
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "config_bfin.h"
DEFUN(put_pixels_clamped,mL1,
(DCTELEM *block, uint8_t *dest, int line_size)):
[--SP] = (R7:4);
R4 = 0;
R5.l = 0x00ff;
R5.h = 0x00ff;
I0 = R0; // block
I1 = R1; // dest
R2 += -4; // line_size
M1 = R2;
P0 = 8;
R0 = [I0++];
R1 = [I0++];
R2 = MAX(R0, R4) (V);
LSETUP (ppc$0,ppc$1) LC0=P0;
ppc$0: R2 = MIN(R2, R5) (V);
R3 = MAX(R1, R4) (V);
R3 = MIN(R3, R5) (V) || R0 = [I0++];
R6 = BYTEPACK (R2,R3) || R1 = [I0++];
R2 = MAX(R0, R4) (V) || [I1++] = R6;
R2 = MIN(R2, R5) (V);
R3 = MAX(R1, R4) (V);
R3 = MIN(R3, R5) (V) || R0 = [I0++];
R6 = BYTEPACK (R2,R3) || R1 = [I0++];
ppc$1: R2 = Max(R0, R4) (V) || [I1++M1] = R6;
(R7:4) = [SP++];
RTS;
DEFUN(add_pixels_clamped,mL1,
(DCTELEM *block, uint8_t *dest, int line_size)):
[-- SP] = (R7:4);
R4 = 0;
I0 = 0;
R2 += -4; // line_size
M0 = R2;
I1 = R1; // dest
I3 = R0; // block
I2 = R1; // dest
P0 = 8;
M3 = 2;
R0 = [I3++] || R2 = [I1];
R2 = R2 << 8 || R0.H = W[I3--] || R3 = [I1++];
R3 = R3 >> 8 || R1.L = W[I3] || I3 += 4;
R6 = BYTEOP3P(R1:0, R3:2) (LO) || R1.H = W[I3++] || R2 = [I1];
LSETUP(apc$2,apc$3) LC1 = P0;
apc$2: R7 = BYTEOP3P(R1:0, R3:2) (HI, R) || R0 = [I3++] || R3 = [I1++M0];
R2 = R2 << 8 || R0.H = W[I3--];
R3 = R3 >> 8 || R1.L = W[I3] || I3 += 4;
R6 = R6 + R7 (S) || R1.H = W[I3];
R6 = BYTEOP3P(R1:0, R3:2) (LO) || I3+=M3 || [I2++]=R6;
R7 = BYTEOP3P(R1:0, R3:2) (HI, R) || R0 = [I3++] || R2 = [I1];
R2 = R2 << 8 || R0.H = W[I3--] || R3 = [I1++];
R3 = R3 >> 8 || R1.L = W[I3] || I3 += 4;
R6 = R6 + R7 (S) || R1.H = W[I3++];
apc$3: R6 = BYTEOP3P(R1:0, R3:2) (LO) || [I2++M0] = R6 || R2 = [I1];
(R7:4) = [SP++];
RTS;
/*
motion compensation
primitives
* Halfpel motion compensation with rounding (a+b+1)>>1.
* This is an array[4][4] of motion compensation funcions for 4
* horizontal blocksizes (8,16) and the 4 halfpel positions<br>
* *pixels_tab[ 0->16xH 1->8xH ][ xhalfpel + 2*yhalfpel ]
* @param block destination where the result is stored
* @param pixels source
* @param line_size number of bytes in a horizontal line of block
* @param h height
*/
DEFUN(put_pixels8uc,mL1,
(uint8_t *block, const uint8_t *s0, const uint8_t *s1,
int dest_size, int line_size, int h)):
i3=r0; // dest
i0=r1; // src0
i1=r2; // src1
r0=[sp+12]; // dest_size
r2=[sp+16]; // line_size
p0=[sp+20]; // h
[--sp] = (r7:6);
r0+=-4;
m3=r0;
r2+=-8;
m0=r2;
LSETUP(pp8$0,pp8$1) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
pp8$0: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++M0]|| R2 =[I1++M0];
R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++] || [I3++] = R6 ;
pp8$1: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7;
(r7:6) = [sp++];
RTS;
DEFUN(put_pixels16uc,mL1,
(uint8_t *block, const uint8_t *s0, const uint8_t *s1,
int dest_size, int line_size, int h)):
link 0;
[--sp] = (r7:6);
i3=r0; // dest
i0=r1; // src0
i1=r2; // src1
r0=[fp+20]; // dest_size
r2=[fp+24]; // line_size
p0=[fp+28]; // h
r0+=-12;
m3=r0; // line_size
r2+=-16;
m0=r2;
LSETUP(pp16$0,pp16$1) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
pp16$0: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++] || R2 =[I1++];
R7 = BYTEOP1P(R1:0,R3:2)(R) || R1 = [I0++] || R3 =[I1++];
[I3++] = R6;
R6 = BYTEOP1P(R1:0,R3:2) || R0 = [I0++M0] || R2 =[I1++M0];
R7 = BYTEOP1P(R1:0,R3:2)(R) || R0 = [I0++] || [I3++] = R7 ;
[I3++] = R6;
pp16$1: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7;
(r7:6) = [sp++];
unlink;
RTS;
DEFUN(put_pixels8uc_nornd,mL1,
(uint8_t *block, const uint8_t *s0, const uint8_t *s1,
int line_size, int h)):
i3=r0; // dest
i0=r1; // src0
i1=r2; // src1
r2=[sp+12]; // line_size
p0=[sp+16]; // h
[--sp] = (r7:6);
r2+=-4;
m3=r2;
r2+=-4;
m0=r2;
LSETUP(pp8$2,pp8$3) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
pp8$2: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R6 = BYTEOP1P(R1:0,R3:2)(T) || R0 = [I0++M0]|| R2 =[I1++M0];
R7 = BYTEOP1P(R1:0,R3:2)(T,R) || R0 = [I0++] || [I3++] = R6 ;
pp8$3: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7;
(r7:6) = [sp++];
RTS;
DEFUN(put_pixels16uc_nornd,mL1,
(uint8_t *block, const uint8_t *s0, const uint8_t *s1,
int line_size, int h)):
i3=r0; // dest
i0=r1; // src0
i1=r2; // src1
r2=[sp+12]; // line_size
p0=[sp+16]; // h
[--sp] = (r7:6);
r2+=-12;
m3=r2; // line_size
r2+=-4;
m0=r2;
LSETUP(pp16$2,pp16$3) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
pp16$2:
DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R6 = BYTEOP1P(R1:0,R3:2)(T) || R0 = [I0++] || R2 =[I1++];
R7 = BYTEOP1P(R1:0,R3:2)(T,R) || R1 = [I0++] || R3 =[I1++];
[I3++] = R6;
R6 = BYTEOP1P(R1:0,R3:2)(T) || R0 = [I0++M0] || R2 =[I1++M0];
R7 = BYTEOP1P(R1:0,R3:2)(T,R) || R0 = [I0++] || [I3++] = R7 ;
[I3++] = R6;
pp16$3: DISALGNEXCPT || R2 = [I1++] || [I3++M3] = R7;
(r7:6) = [sp++];
RTS;
DEFUN(z_put_pixels16_xy2,mL1,
(uint8_t *block, const uint8_t *s0,
int dest_size, int line_size, int h)):
link 0;
[--sp] = (r7:4);
i3=r0; // dest
i0=r1; // src0--> pixels
i1=r1; // src1--> pixels + line_size
r2+=-12;
m2=r2; // m2=dest_width-4
r2=[fp+20];
m3=r2; // line_size
p0=[fp+24]; // h
r2+=-16;
i1+=m3; /* src1 + line_size */
m0=r2; /* line-size - 20 */
B0 = I0;
B1 = I1;
B3 = I3;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LSETUP(LS$16E,LE$16E) LC0=P0;
LS$16E: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++] || R2 =[I1++];
R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R1 = [I0++] || [I3++] = R4 ;
DISALGNEXCPT || R3 = [I1++] || [I3++] = R5;
R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++M0]|| R2 = [I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++] || [I3++] = R4 ;
LE$16E: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5;
M1 = 1;
I3 = B3;
I1 = B1;
I0 = B0;
I0 += M1;
I1 += M1;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LSETUP(LS$16O,LE$16O) LC0=P0;
LS$16O: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++] || R2 =[I1++];
R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R1 = [I0++] || R6 =[I3++];
R4 = R4 +|+ R6 || R7 = [I3--];
R5 = R5 +|+ R7 || [I3++] = R4;
DISALGNEXCPT || R3 =[I1++] || [I3++] = R5;
R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++M0]|| R2 = [I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++] || R6 = [I3++];
R4 = R4 +|+ R6 || R7 = [I3--];
R5 = R5 +|+ R7 || [I3++] = R4;
LE$16O: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5;
(r7:4) = [sp++];
unlink;
rts;
DEFUN(put_pixels16_xy2_nornd,mL1,
(uint8_t *block, const uint8_t *s0,
int line_size, int h)):
link 0;
[--sp] = (r7:4);
i3=r0; // dest
i0=r1; // src0--> pixels
i1=r1; // src1--> pixels + line_size
m3=r2;
r2+=-12;
m2=r2;
r2+=-4;
i1+=m3; /* src1 + line_size */
m0=r2; /* line-size - 20 */
p0=[fp+20]; // h
B0=I0;
B1=I1;
B3=I3;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LSETUP(LS$16ET,LE$16ET) LC0=P0;
LS$16ET:DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R4 = BYTEOP2P (R3:2,R1:0) (TL) || R0 = [I0++] || R2 =[I1++];
R5 = BYTEOP2P (R3:2,R1:0) (TL,R) || R1 = [I0++] || [I3++] = R4 ;
DISALGNEXCPT || R3 = [I1++] || [I3++] = R5;
R4 = BYTEOP2P (R3:2,R1:0) (TL) || R0 = [I0++M0]|| R2 = [I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (TL,R) || R0 = [I0++] || [I3++] = R4 ;
LE$16ET:DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5;
M1 = 1;
I3=B3;
I1=B1;
I0=B0;
I0 += M1;
I1 += M1;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LSETUP(LS$16OT,LE$16OT) LC0=P0;
LS$16OT:DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R4 = BYTEOP2P (R3:2,R1:0) (TH) || R0 = [I0++] || R2 =[I1++];
R5 = BYTEOP2P (R3:2,R1:0) (TH,R) || R1 = [I0++] || R6 =[I3++];
R4 = R4 +|+ R6 || R7 = [I3--];
R5 = R5 +|+ R7 || [I3++] = R4;
DISALGNEXCPT || R3 =[I1++] || [I3++] = R5;
R4 = BYTEOP2P (R3:2,R1:0) (TH) || R0 = [I0++M0]|| R2 = [I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (TH,R) || R0 = [I0++] || R6 = [I3++];
R4 = R4 +|+ R6 || R7 = [I3--];
R5 = R5 +|+ R7 || [I3++] = R4;
LE$16OT:DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5;
(r7:4) = [sp++];
unlink;
rts;
DEFUN(z_put_pixels8_xy2,mL1,
(uint8_t *block, const uint8_t *s0,
int dest_size, int line_size, int h)):
link 0;
[--sp] = (r7:4);
i3=r0; // dest
i0=r1; // src0--> pixels
i1=r1; // src1--> pixels + line_size
r2+=-4;
m2=r2; // m2=dest_width-4
r2=[fp+20];
m3=r2; // line_size
p0=[fp+24]; // h
r2+=-8;
i1+=m3; /* src1 + line_size */
m0=r2; /* line-size - 20 */
b0 = I0;
b1 = I1;
b3 = I3;
LSETUP(LS$8E,LE$8E) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LS$8E: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R4 = BYTEOP2P (R3:2,R1:0) (RNDL) || R0 = [I0++M0] || R2 =[I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (RNDL,R) || R0 = [I0++] || [I3++] = R4 ;
LE$8E: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5;
M1 = 1;
I3 = b3;
I1 = b1;
I0 = b0;
I0 += M1;
I1 += M1;
LSETUP(LS$8O,LE$8O) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LS$8O: DISALGNEXCPT || R1 = [I0++] || R3 =[I1++];
R4 = BYTEOP2P (R3:2,R1:0) (RNDH) || R0 = [I0++M0] || R2 =[I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (RNDH,R) || R0 = [I0++] || R6 =[I3++];
R4 = R4 +|+ R6 || R7 = [I3--];
R5 = R5 +|+ R7 || [I3++] = R4;
LE$8O: DISALGNEXCPT || R2 =[I1++] || [I3++M2] = R5;
(r7:4) = [sp++];
unlink;
rts;
DEFUN(put_pixels8_xy2_nornd,mL1,
(uint8_t *block, const uint8_t *s0, int line_size, int h)):
link 0;
[--sp] = (r7:4);
i3=r0; // dest
i0=r1; // src0--> pixels
i1=r1; // src1--> pixels + line_size
m3=r2;
r2+=-4;
m2=r2;
r2+=-4;
i1+=m3; /* src1 + line_size */
m0=r2; /* line-size - 20 */
p0=[fp+20]; // h
b0 = I0;
b1 = I1;
b3 = I3;
LSETUP(LS$8ET,LE$8ET) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LS$8ET: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
R4 = BYTEOP2P (R3:2,R1:0) (TL) || R0 = [I0++M0] || R2 = [I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (TL,R) || R0 = [I0++] || [I3++] = R4 ;
LE$8ET: DISALGNEXCPT || R2 = [I1++] || [I3++M2] = R5;
M1 = 1;
I3 = b3;
I1 = b1;
I0 = b0;
I0 += M1;
I1 += M1;
LSETUP(LS$8OT,LE$8OT) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 = [I1++];
LS$8OT: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
R4 = BYTEOP2P (R3:2,R1:0) (TH) || R0 = [I0++M0] || R2 = [I1++M0];
R5 = BYTEOP2P (R3:2,R1:0) (TH,R) || R0 = [I0++] || R6 = [I3++];
R4 = R4 +|+ R6 || R7 = [I3--];
R5 = R5 +|+ R7 || [I3++] = R4;
LE$8OT: DISALGNEXCPT || R2 =[I1++] || [I3++M2] = R5;
(r7:4) = [sp++];
unlink;
rts;
DEFUN(diff_pixels,mL1,
(DCTELEM *block, uint8_t *s1, uint8_t *s2, int stride)):
link 0;
[--sp] = (r7:4);
p0=8;
i3=r0; // block
i0=r1; // s1
i1=r2; // s2
r2=[fp+20]; // stride
r2+=-8;
m0=r2;
LSETUP(.LS0,.LE0) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
.LS0: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
(R5,R4) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M0];
(R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R0 = [I0++] || [I3++] = R4;
DISALGNEXCPT || R2 = [I1++] || [I3++] = R5;
[i3++]=r6;
.LE0: [i3++]=r7;
(r7:4) = [sp++];
unlink;
rts;
/*
for (i = 0; i < 16; i++) {
for (j = 0; j < 16; j++) {
sum += pix[j];
}
pix += line_size;
}
*/
DEFUN(pix_sum,mL1,
(uint8_t *p, int stride)):
link 0;
[--sp] = (r7:4);
p0=8;
i0=r0; // s1
i1=r0;
m1=r1;
r1=r1+r1;
r1+=-16; // stride
m0=r1;
i1+=m1;
r6=0;
LSETUP(LS$PS,LE$PS) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LS$PS: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
(R5,R4) = BYTEOP16P (R3:2,R1:0) || R0 = [I0++] || R2 = [I1++];
r6=r6+|+r5;
r6=r6+|+r4;
(R5,R4) = BYTEOP16P (R3:2,R1:0) (R)|| R1 = [I0++] || R3 = [I1++];
r6=r6+|+r5;
r6=r6+|+r4;
(R5,R4) = BYTEOP16P (R3:2,R1:0) || R0 = [I0++m0] || R2 = [I1++m0];
r6=r6+|+r5;
r6=r6+|+r4;
(R5,R4) = BYTEOP16P (R3:2,R1:0) (R)|| R0 = [I0++] || R2 = [I1++];
r6=r6+|+r5;
LE$PS: r6=r6+|+r4;
r0.l=r6.l+r6.h;
r0.h=0;
(r7:4) = [sp++];
unlink;
rts;
DEFUN(get_pixels,mL1,
(DCTELEM *restrict block, const uint8_t *pixels, int line_size)):
[--sp] = (r7:4);
i3=r0; // dest
i0=r1; // src0
p0=8;
r2+=-8;
m0=r2;
LSETUP(gp8$0,gp8$1) LC0=P0;
DISALGNEXCPT || R0 = [I0++];
DISALGNEXCPT || R1 = [I0++];
gp8$0: (R7,R6) = byteunpack R1:0 || R0 = [I0++M0];
(R5,R4) = byteunpack R1:0 (R) || R0 = [I0++] || [I3++]=R6;
DISALGNEXCPT || R1 = [I0++] || [I3++]=R7;
[I3++]=R4;
gp8$1: [I3++]=R5
(r7:4) = [sp++];
RTS;
/* sad = sad16x16 (ubyte *mb, ubyte *refwin, srcwidth, refwinwidth, h) */
/* 91 cycles */
DEFUN(z_sad16x16,mL1,
(uint8_t *blk1, uint8_t *blk2, int dsz, int line_size, int h)):
link 0;
I0 = R0;
I1 = R1;
A1 = A0 = 0;
R0 = [sp+20]; // rwidth
P2 = [sp+24]; // height
R3 = 16;
R0 = R0 - R3;
R3 = R2 - R3;
M1 = R0;
M0 = R3;
DISALGNEXCPT || R0 = [I0++] || R2 = [I1++];
LSETUP (s$16, e$16) LC0=P2;
s$16: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
SAA (R1:0,R3:2) || R0 = [I0++] || R2 = [I1++];
SAA (R1:0,R3:2) (R) || R1 = [I0++] || R3 = [I1++];
SAA (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M1];
e$16: SAA (R1:0,R3:2) (R) || R0 = [I0++] || R2 = [I1++];
R3=A1.L+A1.H, R2=A0.L+A0.H ;
R0 = R2 + R3 ;
unlink;
RTS;
/* sad = sad8x8 (ubyte *mb, ubyte *refwin, int srcwidth, int refwinwidth, int h) */
/* 36 cycles */
DEFUN(z_sad8x8,mL1,
(uint8_t *blk1, uint8_t *blk2, int dsz, int line_size, int h)):
I0 = R0;
I1 = R1;
A1 = A0 = 0;
r0 = [sp+12]; // rwidth
P2 = [sp+16]; //height
R3 = 8;
R0 = R0 - R3;
R3 = R2 - R3;
M0 = R3;
M1 = R0;
LSETUP (s$8, e$8) LC0=P2;
DISALGNEXCPT || R0 = [I0++] || R2 = [I1++];
DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
s$8: SAA (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M1];
SAA (R1:0,R3:2) (R) || R0 = [I0++] || R2 = [I1++];
e$8: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
R3=A1.L+A1.H, R2=A0.L+A0.H ;
R0 = R2 + R3 ;
RTS;
DEFUN(pix_norm1,mL1,
(uint8_t * pix, int line_size)):
[--SP]=(R7:4,P5:3);
// Fetch the input arguments.
P1 = R0; // pix
P0 = R1; // line_size
P5 = 16; // loop ctr.
P0 -= P5;
M0 = P0; // M0 = line_size-16;
// Now for the real work.
A1 = A0 = 0;
lsetup(_pix_norm1_blkfn_loopStart, _pix_norm1_blkfn_loopEnd) LC1 = P5;
I0 = P1;
DISALGNEXCPT || r0 = [i0++];
_pix_norm1_blkfn_loopStart:
// following unpacks pix1[0..15] pix1+line_size[0..15]
DISALGNEXCPT || r1 = [i0++];
(r5, r4) = byteunpack r1:0 || r0 = [i0++];
a1 += r5.h * r5.h, a0 += r5.l * r5.l (is);
a1 += r4.h * r4.h, a0 += r4.l * r4.l (is);
(r5, r4) = byteunpack r1:0(r) || r1 = [i0++];
a1 += r5.h * r5.h, a0 += r5.l * r5.l (is);
a1 += r4.h * r4.h, a0 += r4.l * r4.l (is);
(r5, r4) = byteunpack r1:0 || r0 = [i0++M0];
a1 += r5.h * r5.h, a0 += r5.l * r5.l (is);
a1 += r4.h * r4.h, a0 += r4.l * r4.l (is);
(r5, r4) = byteunpack r1:0(r) || r0 = [i0++];
a1 += r5.h * r5.h, a0 += r5.l * r5.l (is);
_pix_norm1_blkfn_loopEnd:
a1 += r4.h * r4.h, a0 += r4.l * r4.l (is);
// Clean up at the end:
R2 = A0, R3 = A1;
R0 = R2 + R3 (S);
(R7:4,P5:3)=[SP++];
RTS;
DEFUN(sse4,mL1,
(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)):
link 0;
[--sp] = (r7:6);
p0=[fp+24]; // h
i0=r1; // pix1
i1=r2; // pix2
r2=[fp+20]; // line_size
r2+=-4;
m0=r2;
a0=a1=0;
LSETUP(.S40,.E40) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
.S40: DISALGNEXCPT || R1 = [I0++M0] || R3 = [I1++M0];
(R7,R6) = BYTEOP16M (R1:0,R3:2);
a0 += r7.l * r7.l, a1 += r7.h * r7.h (is);
.E40: a0 += r6.l * r6.l, a1 += r6.h * r6.h (is);
a0 += a1;
r0 = a0;
(r7:6) = [sp++];
unlink;
rts;
DEFUN(sse8,mL1,
(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)):
link 0;
[--sp] = (r7:6);
p0=[fp+24]; // h
i0=r1; // pix1
i1=r2; // pix2
r2=[fp+20]; // line_size
r2+=-8;
m0=r2;
a0=a1=0;
LSETUP(.S80,.E80) LC0=P0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
.S80: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
(R7,R6) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M0];
a0 += r7.l * r7.l, a1 += r7.h * r7.h (is);
a0 += r6.l * r6.l, a1 += r6.h * r6.h (is);
(R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R0 = [I0++] || R2 = [I1++];
a0 += r7.l * r7.l, a1 += r7.h * r7.h (is);
.E80: a0 += r6.l * r6.l, a1 += r6.h * r6.h (is);
a0 += a1;
r0 = a0;
(r7:6) = [sp++];
unlink;
rts;
DEFUN(sse16,mL1,
(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h)):
link 0;
[--sp] = (r7:6);
p0=[fp+24]; // h
i0=r1; // pix1
i1=r2; // pix2
r2=[fp+20]; // line_size
r2+=-16;
m0=r2;
a0=a1=0;
DISALGNEXCPT || R0 = [I0++] || R2 =[I1++];
LSETUP(.S160,.E160) LC0=P0;
.S160: DISALGNEXCPT || R1 = [I0++] || R3 = [I1++];
(R7,R6) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++] || R2 = [I1++];
a0 += r7.l * r7.l, a1 += r7.h * r7.h (is);
a0 += r6.l * r6.l, a1 += r6.h * r6.h (is);
(R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R1 = [I0++] || R3 = [I1++];
a0 += r7.l * r7.l, a1 += r7.h * r7.h (is);
a0 += r6.l * r6.l, a1 += r6.h * r6.h (is);
(R7,R6) = BYTEOP16M (R1:0,R3:2) || R0 = [I0++M0] || R2 = [I1++M0];
a0 += r7.l * r7.l, a1 += r7.h * r7.h (is);
a0 += r6.l * r6.l, a1 += r6.h * r6.h (is);
(R7,R6) = BYTEOP16M (R1:0,R3:2) (R)|| R0 = [I0++] || R2 = [I1++];
a0 += r7.l * r7.l, a1 += r7.h * r7.h (is);
.E160: a0 += r6.l * r6.l, a1 += r6.h * r6.h (is);
a0 += a1;
r0 = a0;
(r7:6) = [sp++];
unlink;
rts;