rtjpegn.s

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· S 代码 · 共 4,600 行 · 第 1/5 页

bne	$3,$0,$L589
slt	$3,$2,0

li	$2,63488			# 0xf800
$L591:
or	$2,$6,$2
or	$2,$4,$2
sra	$3,$2,8
sb	$3,3($12)
sb	$2,2($12)
lbu	$5,0($24)
li	$3,65536			# 0x10000
ori	$3,$3,0x29fc
mul	$4,$5,$3
li	$2,-1245184			# 0xffffffffffed0000
ori	$2,$2,0x6040
addu	$5,$4,$2
addu	$4,$14,$5
sra	$4,$4,16
slt	$2,$4,256
bne	$2,$0,$L592
addiu	$12,$12,4

li	$4,31			# 0x1f
$L594:
subu	$2,$5,$13
subu	$2,$2,$7
sra	$2,$2,16
slt	$3,$2,256
bne	$3,$0,$L595
slt	$3,$2,0

li	$6,2016			# 0x7e0
$L597:
addu	$2,$15,$5
sra	$2,$2,16
slt	$3,$2,256
bne	$3,$0,$L598
slt	$3,$2,0

li	$2,63488			# 0xf800
$L600:
or	$2,$6,$2
or	$2,$2,$4
sra	$3,$2,8
sb	$3,1($11)
sb	$2,0($11)
lbu	$5,1($24)
li	$3,65536			# 0x10000
ori	$3,$3,0x29fc
mul	$4,$5,$3
li	$2,-1245184			# 0xffffffffffed0000
ori	$2,$2,0x6040
addu	$6,$4,$2
addu	$4,$14,$6
sra	$4,$4,16
slt	$2,$4,256
bne	$2,$0,$L601
slt	$3,$4,0

li	$4,31			# 0x1f
$L603:
subu	$2,$6,$13
subu	$2,$2,$7
sra	$2,$2,16
slt	$3,$2,256
bne	$3,$0,$L604
slt	$3,$2,0

li	$5,2016			# 0x7e0
$L606:
addu	$2,$15,$6
sra	$2,$2,16
slt	$3,$2,256
bne	$3,$0,$L607
slt	$3,$2,0

li	$2,63488			# 0xf800
or	$2,$5,$2
or	$2,$2,$4
addiu	$16,$16,2
sra	$3,$2,8
slt	$4,$16,$19
sb	$3,3($11)
sb	$2,2($11)
addiu	$25,$25,2
addiu	$11,$11,4
beq	$4,$0,$L610
addiu	$24,$24,2

$L573:
lbu	$6,0($18)
li	$4,131072			# 0x20000
ori	$4,$4,0x49c
mul	$3,$6,$4
lbu	$9,0($25)
li	$7,65536			# 0x10000
li	$2,-16973824			# 0xfffffffffefd0000
ori	$7,$7,0x29fc
ori	$2,$2,0xb200
addu	$14,$3,$2
mul	$2,$9,$7
sll	$8,$6,3
sll	$5,$6,5
subu	$5,$5,$8
li	$3,-1245184			# 0xffffffffffed0000
addu	$5,$5,$6
ori	$3,$3,0x6040
lbu	$6,0($17)
addu	$10,$2,$3
li	$4,53281			# 0xd021
addu	$2,$14,$10
mul	$3,$6,$4
sra	$9,$2,16
sll	$2,$5,10
addu	$5,$5,$2
li	$2,-6881280			# 0xffffffffff970000
ori	$2,$2,0xef80
addu	$13,$3,$2
mul	$2,$6,$7
li	$3,-9764864			# 0xffffffffff6b0000
ori	$3,$3,0x200
addu	$15,$2,$3
li	$2,-3342336			# 0xffffffffffcd0000
ori	$2,$2,0xf380
slt	$8,$9,256
addu	$7,$5,$2
addiu	$17,$17,1
beq	$8,$0,$L616
addiu	$18,$18,1

slt	$3,$9,0
move	$2,$0
movz	$2,$9,$3
andi	$2,$2,0x00ff
srl	$8,$2,3
subu	$2,$10,$13
subu	$2,$2,$7
sra	$2,$2,16
slt	$3,$2,256
beq	$3,$0,$L617
nop

$L577:
slt	$3,$2,0
movn	$2,$0,$3
sll	$2,$2,3
andi	$4,$2,0x7e0
addu	$2,$15,$10
sra	$2,$2,16
slt	$3,$2,256
beq	$3,$0,$L618
nop

$L580:
slt	$3,$2,0
movn	$2,$0,$3
sll	$2,$2,8
j	$L582
andi	$2,$2,0xf800

$L607:
movn	$2,$0,$3
sll	$2,$2,8
andi	$2,$2,0xf800
or	$2,$5,$2
or	$2,$2,$4
addiu	$16,$16,2
sra	$3,$2,8
slt	$4,$16,$19
sb	$3,3($11)
sb	$2,2($11)
addiu	$25,$25,2
addiu	$11,$11,4
bne	$4,$0,$L573
addiu	$24,$24,2

$L610:
addiu	$22,$22,1
beq	$22,$23,$L613
addu	$12,$12,$21

addu	$11,$11,$21
j	$L572
addu	$20,$20,$fp

$L604:
movn	$2,$0,$3
sll	$2,$2,3
j	$L606
andi	$5,$2,0x7e0

$L601:
move	$2,$0
movz	$2,$4,$3
andi	$2,$2,0x00ff
j	$L603
srl	$4,$2,3

$L598:
movn	$2,$0,$3
sll	$2,$2,8
j	$L600
andi	$2,$2,0xf800

$L595:
movn	$2,$0,$3
sll	$2,$2,3
j	$L597
andi	$6,$2,0x7e0

$L592:
slt	$3,$4,0
move	$2,$0
movz	$2,$4,$3
andi	$2,$2,0x00ff
j	$L594
srl	$4,$2,3

$L589:
movn	$2,$0,$3
sll	$2,$2,8
j	$L591
andi	$2,$2,0xf800

$L586:
movn	$2,$0,$3
sll	$2,$2,3
j	$L588
andi	$6,$2,0x7e0

$L583:
move	$2,$0
movz	$2,$4,$3
andi	$2,$2,0x00ff
j	$L585
srl	$4,$2,3

$L613:
lw	$fp,32($sp)
lw	$23,28($sp)
lw	$22,24($sp)
lw	$21,20($sp)
lw	$20,16($sp)
lw	$19,12($sp)
lw	$18,8($sp)
lw	$17,4($sp)
lw	$16,0($sp)
j	$31
addiu	$sp,$sp,40

$L566:
lui	$3,%hi(RTjpeg_width)
lw	$2,%lo(RTjpeg_width)($3)
lw	$19,%lo(RTjpeg_width)($3)
subu	$2,$6,$2
j	$L568
sll	$21,$2,1

$L615:
j	$L571
addiu	$2,$3,3

.set	macro
.set	reorder
.end	RTjpeg_yuvrgb16
.section	.text.RTjpeg_yuvrgb8,"ax",@progbits
.align	2
.align	5
.globl	RTjpeg_yuvrgb8
.ent	RTjpeg_yuvrgb8
.type	RTjpeg_yuvrgb8, @function
RTjpeg_yuvrgb8:
.frame	$sp,0,$31		# vars= 0, regs= 0/0, args= 0, gp= 0
.mask	0x00000000,0
.fmask	0x00000000,0
lui	$2,%hi(RTjpeg_width)
lui	$3,%hi(RTjpeg_height)
lw	$6,%lo(RTjpeg_width)($2)
lw	$2,%lo(RTjpeg_height)($3)
move	$7,$4
mul	$6,$6,$2
sltu	$2,$6,32
.set	noreorder
.set	nomacro
bne	$2,$0,$L620
move	$4,$5
.set	macro
.set	reorder

andi	$2,$5,0x3
.set	noreorder
.set	nomacro
beq	$2,$0,$L637
andi	$2,$7,0x3
.set	macro
.set	reorder

$L620:
.set	noreorder
.set	nomacro
j	memcpy
move	$5,$7
.set	macro
.set	reorder

$L637:
.set	noreorder
.set	nomacro
bne	$2,$0,$L620
li	$2,-32			# 0xffffffffffffffe0
.set	macro
.set	reorder

addiu	$5,$5,-4
and	$2,$6,$2
addu	$8,$5,$2
sltu	$3,$5,$8
.set	noreorder
.set	nomacro
beq	$3,$0,$L624
addiu	$4,$7,-4
.set	macro
.set	reorder

$L633:
#APP
.word	0b01110000100000000000010001010100	#S32LDI XR1,$4,4
.word	0b01110000100000000000010010010100	#S32LDI XR2,$4,4
.word	0b01110000100000000000010011010100	#S32LDI XR3,$4,4
.word	0b01110000100000000000010100010100	#S32LDI XR4,$4,4
.word	0b01110000100000000000010101010100	#S32LDI XR5,$4,4
.word	0b01110000100000000000010110010100	#S32LDI XR6,$4,4
.word	0b01110000100000000000010111010100	#S32LDI XR7,$4,4
.word	0b01110000100000000000011000010100	#S32LDI XR8,$4,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010010010101	#S32SDI XR2,$5,4
.word	0b01110000101000000000010011010101	#S32SDI XR3,$5,4
.word	0b01110000101000000000010100010101	#S32SDI XR4,$5,4
.word	0b01110000101000000000010101010101	#S32SDI XR5,$5,4
.word	0b01110000101000000000010110010101	#S32SDI XR6,$5,4
.word	0b01110000101000000000010111010101	#S32SDI XR7,$5,4
.word	0b01110000101000000000011000010101	#S32SDI XR8,$5,4
#NO_APP
sltu	$2,$5,$8
bne	$2,$0,$L633
$L624:
andi	$2,$6,0x1c
addu	$7,$8,$2
sltu	$3,$5,$7
beq	$3,$0,$L626
$L634:
#APP
.word	0b01110000100000000000010001010100	#S32LDI XR1,$4,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$7
bne	$2,$0,$L634
$L626:
andi	$6,$6,0x3
li	$2,2			# 0x2
.set	noreorder
.set	nomacro
beq	$6,$2,$L630
li	$2,3			# 0x3
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
beq	$6,$2,$L631
li	$2,1			# 0x1
.set	macro
.set	reorder

beq	$6,$2,$L638
j	$31
$L630:
lbu	$2,4($4)
sb	$2,4($5)
lbu	$3,5($4)
.set	noreorder
.set	nomacro
j	$31
sb	$3,5($5)
.set	macro
.set	reorder

$L631:
lbu	$2,4($4)
sb	$2,4($5)
lbu	$3,5($4)
sb	$3,5($5)
lbu	$2,6($4)
.set	noreorder
.set	nomacro
j	$31
sb	$2,6($5)
.set	macro
.set	reorder

$L638:
lbu	$2,4($4)
.set	noreorder
.set	nomacro
j	$31
sb	$2,4($5)
.set	macro
.set	reorder

.end	RTjpeg_yuvrgb8
.section	.text.RTjpeg_init_mcompress,"ax",@progbits
.align	2
.align	5
.globl	RTjpeg_init_mcompress
.ent	RTjpeg_init_mcompress
.type	RTjpeg_init_mcompress, @function
RTjpeg_init_mcompress:
.frame	$sp,32,$31		# vars= 0, regs= 4/0, args= 16, gp= 0
.mask	0x80070000,-4
.fmask	0x00000000,0
addiu	$sp,$sp,-32
sw	$16,16($sp)
sw	$31,28($sp)
sw	$18,24($sp)
sw	$17,20($sp)
lui	$16,%hi(RTjpeg_old)
lw	$6,%lo(RTjpeg_old)($16)
.set	noreorder
.set	nomacro
beq	$6,$0,$L667
lui	$17,%hi(RTjpeg_height)
.set	macro
.set	reorder

lui	$18,%hi(RTjpeg_width)
$L640:
lw	$2,%lo(RTjpeg_width)($18)
lw	$4,%lo(RTjpeg_height)($17)
sll	$2,$2,2
mul	$7,$2,$4
sltu	$3,$7,40
.set	noreorder
.set	nomacro
bne	$3,$0,$L668
andi	$2,$6,0x3
.set	macro
.set	reorder

li	$3,4			# 0x4
subu	$3,$3,$2
li	$2,2			# 0x2
.set	noreorder
.set	nomacro
beq	$3,$2,$L647
move	$4,$6
.set	macro
.set	reorder

li	$2,3			# 0x3
.set	noreorder
.set	nomacro
beq	$3,$2,$L648
li	$2,1			# 0x1
.set	macro
.set	reorder

beq	$3,$2,$L669
$L645:
addiu	$5,$4,-4
move	$2,$0
#APP
.word	0b01110000000000100000000001101111	#S32I2M XR1,$2
#NO_APP
andi	$3,$4,0x1f
.set	noreorder
.set	nomacro
beq	$3,$0,$L649
li	$2,-32			# 0xffffffffffffffe0
.set	macro
.set	reorder

and	$2,$5,$2
addiu	$4,$2,32
sltu	$3,$5,$4
beq	$3,$0,$L649
$L661:
#APP
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$4
bne	$2,$0,$L661
$L649:
addu	$6,$7,$6
addiu	$2,$6,-31
li	$3,-32			# 0xffffffffffffffe0
and	$3,$2,$3
sltu	$4,$5,$3
.set	noreorder
.set	nomacro
beq	$4,$0,$L672
addiu	$2,$6,-4
.set	macro
.set	reorder

addiu	$2,$5,4
$L673:
#APP
pref 30,0($2)
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$3
.set	noreorder
.set	nomacro
bne	$2,$0,$L673
addiu	$2,$5,4
.set	macro
.set	reorder

addiu	$2,$6,-4
$L672:
li	$3,-4			# 0xfffffffffffffffc
and	$3,$2,$3
sltu	$4,$5,$3
beq	$4,$0,$L654
$L663:
#APP
.word	0b01110000101000000000010001010101	#S32SDI XR1,$5,4
#NO_APP
sltu	$2,$5,$3
bne	$2,$0,$L663
$L654:
andi	$3,$6,0x3
li	$2,2			# 0x2
.set	noreorder
.set	nomacro
beq	$3,$2,$L657
addiu	$4,$5,4
.set	macro
.set	reorder

li	$2,3			# 0x3
.set	noreorder
.set	nomacro
beq	$3,$2,$L658
li	$2,1			# 0x1
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
beq	$3,$2,$L670
lw	$31,28($sp)
.set	macro
.set	reorder

$L671:
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L647:
addiu	$4,$6,2
sb	$0,0($6)
.set	noreorder
.set	nomacro
j	$L645
sb	$0,1($6)
.set	macro
.set	reorder

$L668:
move	$4,$6
lw	$31,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
move	$6,$7
move	$5,$0
.set	noreorder
.set	nomacro
j	memset
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L657:
sb	$0,4($5)
sb	$0,1($4)
lw	$31,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L648:
addiu	$4,$6,3
sb	$0,0($6)
sb	$0,1($6)
.set	noreorder
.set	nomacro
j	$L645
sb	$0,2($6)
.set	macro
.set	reorder

$L658:
sb	$0,6($5)
sb	$0,4($5)
sb	$0,5($5)
lw	$31,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L669:
addiu	$4,$6,1
.set	noreorder
.set	nomacro
j	$L645
sb	$0,0($6)
.set	macro
.set	reorder

$L670:
sb	$0,4($5)
lw	$31,28($sp)
lw	$18,24($sp)
lw	$17,20($sp)
lw	$16,16($sp)
.set	noreorder
.set	nomacro
j	$31
addiu	$sp,$sp,32
.set	macro
.set	reorder

$L667:
lui	$18,%hi(RTjpeg_width)
lw	$4,%lo(RTjpeg_width)($18)
lw	$2,%lo(RTjpeg_height)($17)
sll	$4,$4,2
mul	$4,$4,$2
.set	noreorder
.set	nomacro
jal	uc_malloc
addiu	$4,$4,32
.set	macro
.set	reorder

addiu	$2,$2,32
srl	$2,$2,5
sll	$6,$2,5
.set	noreorder
.set	nomacro
bne	$6,$0,$L640
sw	$6,%lo(RTjpeg_old)($16)
.set	macro
.set	reorder

.set	noreorder
.set	nomacro
j	$L671
lw	$31,28($sp)
.set	macro
.set	reorder

.end	RTjpeg_init_mcompress
.section	.text.RTjpeg_compress8,"ax",@progbits
.align	2
.align	5
.globl	RTjpeg_compress8
.ent	RTjpeg_compress8
.type	RTjpeg_compress8, @function
RTjpeg_compress8:
.frame	$sp,64,$31		# vars= 8, regs= 10/0, args= 16, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-64
sw	$21,44($sp)
sw	$31,60($sp)
sw	$fp,56($sp)
sw	$23,52($sp)
sw	$22,48($sp)
sw	$20,40($sp)
sw	$19,36($sp)
sw	$18,32($sp)
sw	$17,28($sp)
sw	$16,24($sp)
lui	$2,%hi(RTjpeg_height)
lw	$2,%lo(RTjpeg_height)($2)
sw	$4,64($sp)
sw	$2,16($sp)
blez	$2,$L675
move	$21,$5

lui	$2,%hi(RTjpeg_width)
lui	$3,%hi(RTjpeg_block)
lw	$20,%lo(RTjpeg_width)($2)
lw	$18,%lo(RTjpeg_block)($3)
lui	$2,%hi(RTjpeg_lqt)
lui	$3,%hi(RTjpeg_lb8)
lw	$22,%lo(RTjpeg_lqt)($2)
lbu	$23,%lo(RTjpeg_lb8)($3)
move	$17,$4
move	$fp,$0
$L677:
blez	$20,$L691
lw	$3,16($sp)

move	$19,$0
li	$16,64			# 0x40
$L679:
addu	$4,$19,$21
move	$5,$18
jal	RTjpeg_dctY
move	$6,$20

move	$4,$18
move	$5,$22
move	$6,$0
$L680:
lh	$2,0($4)
lw	$3,0($5)
addiu	$6,$6,1
mul	$2,$2,$3
addiu	$5,$5,4
addiu	$2,$2,32767
sra	$2,$2,16
sh	$2,0($4)
bne	$6,$16,$L680
addiu	$4,$4,2

move	$5,$17
addiu	$19,$19,8
move	$4,$18
jal	RTjpeg_b2s
move	$6,$23

slt	$3,$19,$20
bne	$3,$0,$L679
addu	$17,$17,$2

lw	$3,16($sp)
$L691:
addiu	$fp,$fp,8
slt	$2,$fp,$3
bne	$2,$0,$L677
addu	$21,$21,$20

lw	$3,64($sp)
subu	$2,$17,$3
$L685:
lw	$31,60($sp)
lw	$fp,56($sp)
lw	$23,52($sp)
lw	$22,48($sp)
lw	$21,44($sp)
lw	$20,40($sp)
lw	$19,36($sp)
lw	$18,32($sp)
lw	$17,28($sp)
lw	$16,24($sp)
j	$31
addiu	$sp,$sp,64

$L675:
j	$L685
move	$2,$0

.set	macro
.set	reorder
.end	RTjpeg_compress8
.section	.text.RTjpeg_compressYUV422,"ax",@progbits
.align	2
.align	5
.globl	RTjpeg_compressYUV422
.ent	RTjpeg_compressYUV422
.type	RTjpeg_compressYUV422, @function
RTjpeg_compressYUV422:
.frame	$sp,88,$31		# vars= 32, regs= 10/0, args= 16, gp= 0
.mask	0xc0ff0000,-4
.fmask	0x00000000,0
.set	noreorder
.set	nomacro

addiu	$sp,$sp,-88
sw	$31,84($sp)
sw	$fp,80($sp)
sw	$23,76($sp)
sw	$22,72($sp)
sw	$21,68($sp)
sw	$20,64($sp)
sw	$19,60($sp)
sw	$18,56($sp)
sw	$17,52($sp)
sw	$16,48($sp)
lui	$2,%hi(RTjpeg_height)
lw	$2,%lo(RTjpeg_height)($2)
sw	$5,92($sp)
sw	$2,16($sp)
lui	$2,%hi(RTjpeg_Ysize)
lw	$5,%lo(RTjpeg_Ysize)($2)
lw	$2,16($sp)
lui	$3,%hi(RTjpeg_Csize)
sw	$4,88($sp)
beq	$2,$0,$L693
lw	$4,%lo(RTjpeg_Csize)($3)

lui	$2,%hi(RTjpeg_width)
lw	$2,%lo(RTjpeg_width)($2)
lw	$3,92($sp)
sw	$2,28($sp)
lui	$2,%hi(RTjpeg_block)
lw	$16,%lo(RTjpeg_block)($2)
lui	$2,%hi(RTjpeg_lqt)
lw	$fp,%lo(RTjpeg_lqt)($2)
lui	$2,%hi(RTjpeg_Cwidth)
addu	$22,$5,$3
lw	$2,%lo(RTjpeg_Cwidth)($2)
lui	$3,%hi(RTjpeg_Ywidth)
lw	$3,%lo(RTjpeg_Ywidth)($3)
sw	$2,36($sp)
lui	$2,%hi(RTjpeg_cb8)
lbu	$2,%lo(RTjpeg_cb8)($2)
sw	$3,44($sp)
lui	$3,%hi(RTjpeg_lb8)
lbu	$3,%lo(RTjpeg_lb8)($3)
sw	$2,32($sp)
addu	$21,$22,$4
lw	$2,28($sp)
lw	$4,28($sp)
sw	$3,40($sp)
lui	$3,%hi(RTjpeg_cqt)
sll	$4,$4,3
sll	$2,$2,2
lw	$23,%lo(RTjpeg_cqt)($3)
lw	$17,88($sp)
sw	$4,24($sp)
sw	$2,20($sp)
$L695:
lw	$4,28($sp)
blez	$4,$L706
lw	$18,92($sp)

move	$19,$0
move	$20,$0
$L697:
lw	$6,44($sp)
move	$4,$18
jal	RTjpeg_dctY
move	$5,$16

move	$4,$16
move	$5,$fp
move	$6,$0
li	$7,64			# 0x40
$L698:
lh	$2,0($4)
lw	$3,0($5)
addiu	$6,$6,1
mul	$2,$2,$3
addiu	$5,$5,4
addiu	$2,$2,32767
sra	$2,$2,16
sh	$2,0($4)
bne	$6,$7,$L698
addiu	$4,$4,2

lw	$6,40($sp)
move	$5,$17
jal	RTjpeg_b2s
move	$4,$16

lw	$6,44($sp)
addiu	$4,$18,8
move	$5,$16
jal	RTjpeg_dctY
addu	$17,$2,$17

move	$4,$16
move	$5,$fp
move	$6,$0
li	$7,64			# 0x40
$L700:
lh	$2,0($4)
lw	$3,0($5)
addiu	$6,$6,1
mul	$2,$2,$3
addiu	$5,$5,4
addiu	$2,$2,32767
sra	$2,$2,16
sh	$2